cpython-lru_cache-weakref: Python/compile.c annotate

annotate Python/compile.c @ 45155:86602b603462 2.5

backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4.

author	Amaury Forgeot d'Arc <amauryfa@gmail.com>
date	Mon, 04 Feb 2008 22:34:57 +0000
parents	742a264cce4f
children	0dfaa92bd534

rev	line source
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2 * This file compiles an abstract syntax tree (AST) into Python bytecode.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3 *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4 * The primary entry point is PyAST_Compile(), which returns a
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	5 * PyCodeObject. The compiler makes several passes to build the code
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	6 * object:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	7 * 1. Checks for future statements. See future.c
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	8 * 2. Builds a symbol table. See symtable.c.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	9 * 3. Generate code for basic blocks. See compiler_mod() in this file.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	10 * 4. Assemble the basic blocks into final code. See assemble() in
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	11 * this file.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	12 *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	13 * Note that compiler_mod() suggests module, but the module ast type
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	14 * (mod_ty) has cases for expressions and interactive statements.
35881 29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	15 *
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	16 * CAUTION: The VISIT_* macros abort the current function when they
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	17 * encounter a problem. So don't invoke them when there is memory
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	18 * which needs to be released. Code blocks are OK, as the compiler
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	19 * structure takes care of releasing those.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	20 */
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	21
5373 5880384d7c71 Quickly renamed the remaining files -- this directory is done. Guido van Rossum <guido@python.org> parents: 5287 diff changeset	22 #include "Python.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 73 diff changeset	23
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	24 #include "Python-ast.h"
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	25 #include "node.h"
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 35993 diff changeset	26 #include "pyarena.h"
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	27 #include "ast.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	28 #include "code.h"
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	29 #include "compile.h"
16421 aa844711463a Move a bunch of definitions that were internal to compile.c to Jeremy Hylton <jeremy@alum.mit.edu> parents: 16408 diff changeset	30 #include "symtable.h"
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	31 #include "opcode.h"
5438 e926c331ebbf Instead of importing graminit.h whenever one of the three grammar 'root' Guido van Rossum <guido@python.org> parents: 5373 diff changeset	32
5164 8c277f29b535 Add global Py_OptimizeFlag. SET_LINENO is omitted again unless this is Guido van Rossum <guido@python.org> parents: 5119 diff changeset	33 int Py_OptimizeFlag = 0;
8c277f29b535 Add global Py_OptimizeFlag. SET_LINENO is omitted again unless this is Guido van Rossum <guido@python.org> parents: 5119 diff changeset	34
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	35 /*
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	36 ISSUES:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	37
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	38 opcode_stack_effect() function should be reviewed since stack depth bugs
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	39 could be really hard to find later.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	40
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	41 Dead code is being generated (i.e. after unconditional jumps).
36797 7285c37d7633 Update known issues to reflect reality Neal Norwitz <nnorwitz@gmail.com> parents: 36786 diff changeset	42 XXX(nnorwitz): not sure this is still true
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	43 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	44
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	45 #define DEFAULT_BLOCK_SIZE 16
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	46 #define DEFAULT_BLOCKS 8
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	47 #define DEFAULT_CODE_SIZE 128
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	48 #define DEFAULT_LNOTAB_SIZE 16
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	49
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	50 struct instr {
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	51 unsigned i_jabs : 1;
56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	52 unsigned i_jrel : 1;
56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	53 unsigned i_hasarg : 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	54 unsigned char i_opcode;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	55 int i_oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	56 struct basicblock_ i_target; / target block (if jump instruction) */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	57 int i_lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	58 };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	59
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	60 typedef struct basicblock_ {
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	61 /* Each basicblock in a compilation unit is linked via b_list in the
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	62 reverse order that the block are allocated. b_list points to the next
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	63 block, not to be confused with b_next, which is next by control flow. */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	64 struct basicblock_ *b_list;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	65 /* number of instructions used */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	66 int b_iused;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	67 /* length of instruction array (b_instr) */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	68 int b_ialloc;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	69 /* pointer to an array of instructions, initially NULL */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	70 struct instr *b_instr;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	71 /* If b_next is non-NULL, it is a pointer to the next
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	72 block reached by normal control flow. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	73 struct basicblock_ *b_next;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	74 /* b_seen is used to perform a DFS of basicblocks. */
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	75 unsigned b_seen : 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	76 /* b_return is true if a RETURN_VALUE opcode is inserted. */
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	77 unsigned b_return : 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	78 /* depth of stack upon entry of block, computed by stackdepth() */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	79 int b_startdepth;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	80 /* instruction offset for block, computed by assemble_jump_offsets() */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	81 int b_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	82 } basicblock;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	83
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	84 /* fblockinfo tracks the current frame block.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	85
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	86 A frame block is used to handle loops, try/except, and try/finally.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	87 It's called a frame block to distinguish it from a basic block in the
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	88 compiler IR.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	89 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	90
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	91 enum fblocktype { LOOP, EXCEPT, FINALLY_TRY, FINALLY_END };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	92
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	93 struct fblockinfo {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	94 enum fblocktype fb_type;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	95 basicblock *fb_block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	96 };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	97
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	98 /* The following items change on entry and exit of code blocks.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	99 They must be saved and restored when returning to a block.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	100 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	101 struct compiler_unit {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	102 PySTEntryObject *u_ste;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	103
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	104 PyObject *u_name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	105 /* The following fields are dicts that map objects to
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	106 the index of them in co_XXX. The index is used as
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	107 the argument for opcodes that refer to those collections.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	108 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	109 PyObject u_consts; / all constants */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	110 PyObject u_names; / all names */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	111 PyObject u_varnames; / local variables */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	112 PyObject u_cellvars; / cell variables */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	113 PyObject u_freevars; / free variables */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	114
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	115 PyObject u_private; / for private name mangling */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	116
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	117 int u_argcount; /* number of arguments for block */
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	118 /* Pointer to the most recently allocated block. By following b_list
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	119 members, you can reach all early allocated blocks. */
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	120 basicblock *u_blocks;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	121 basicblock u_curblock; / pointer to current block */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	122 int u_tmpname; /* temporary variables for list comps */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	123
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	124 int u_nfblocks;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	125 struct fblockinfo u_fblock[CO_MAXBLOCKS];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	126
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	127 int u_firstlineno; /* the first lineno of the block */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	128 int u_lineno; /* the lineno for the current stmt */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	129 bool u_lineno_set; /* boolean to indicate whether instr
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	130 has been generated with current lineno */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	131 };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	132
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	133 /* This struct captures the global state of a compilation.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	134
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	135 The u pointer points to the current compilation unit, while units
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	136 for enclosing blocks are stored in c_stack. The u and c_stack are
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	137 managed by compiler_enter_scope() and compiler_exit_scope().
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	138 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	139
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	140 struct compiler {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	141 const char *c_filename;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	142 struct symtable *c_st;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	143 PyFutureFeatures c_future; / pointer to module's __future__ */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	144 PyCompilerFlags *c_flags;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	145
39363 b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	146 int c_interactive; /* true if in interactive mode */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	147 int c_nestlevel;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	148
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	149 struct compiler_unit u; / compiler state for current block */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	150 PyObject c_stack; / Python list holding compiler_unit ptrs */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	151 char c_encoding; / source encoding (a borrowed reference) */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	152 PyArena c_arena; / pointer to memory allocation arena */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	153 };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	154
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	155 struct assembler {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	156 PyObject a_bytecode; / string containing bytecode */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	157 int a_offset; /* offset into bytecode */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	158 int a_nblocks; /* number of reachable blocks */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	159 basicblock *a_postorder; / list of blocks in dfs postorder */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	160 PyObject a_lnotab; / string containing lnotab */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	161 int a_lnotab_off; /* offset into lnotab */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	162 int a_lineno; /* last lineno of emitted instruction */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	163 int a_lineno_off; /* bytecode offset of last lineno */
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 73 diff changeset	164 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 73 diff changeset	165
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	166 static int compiler_enter_scope(struct compiler , identifier, void , int);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	167 static void compiler_free(struct compiler *);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	168 static basicblock compiler_new_block(struct compiler );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	169 static int compiler_next_instr(struct compiler , basicblock );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	170 static int compiler_addop(struct compiler *, int);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	171 static int compiler_addop_o(struct compiler , int, PyObject , PyObject *);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	172 static int compiler_addop_i(struct compiler *, int, int);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	173 static int compiler_addop_j(struct compiler , int, basicblock , int);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	174 static basicblock compiler_use_new_block(struct compiler );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	175 static int compiler_error(struct compiler , const char );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	176 static int compiler_nameop(struct compiler *, identifier, expr_context_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	177
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	178 static PyCodeObject compiler_mod(struct compiler , mod_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	179 static int compiler_visit_stmt(struct compiler *, stmt_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	180 static int compiler_visit_keyword(struct compiler *, keyword_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	181 static int compiler_visit_expr(struct compiler *, expr_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	182 static int compiler_augassign(struct compiler *, stmt_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	183 static int compiler_visit_slice(struct compiler *, slice_ty,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	184 expr_context_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	185
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	186 static int compiler_push_fblock(struct compiler *, enum fblocktype,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	187 basicblock *);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	188 static void compiler_pop_fblock(struct compiler *, enum fblocktype,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	189 basicblock *);
40044 9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	190 /* Returns true if there is a loop on the fblock stack. */
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	191 static int compiler_in_loop(struct compiler *);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	192
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	193 static int inplace_binop(struct compiler *, operator_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	194 static int expr_constant(expr_ty e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	195
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	196 static int compiler_with(struct compiler *, stmt_ty);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	197
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	198 static PyCodeObject assemble(struct compiler , int addNone);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	199 static PyObject *__doc__;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	200
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	201 PyObject *
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	202 _Py_Mangle(PyObject privateobj, PyObject ident)
33100 356887410bde Fix bug Michael W. Hudson <mwh@python.net> parents: 32977 diff changeset	203 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	204 /* Name mangling: __private becomes _classname__private.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	205 This is independent from how the name is used. */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	206 const char p, name = PyString_AsString(ident);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	207 char *buffer;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	208 size_t nlen, plen;
39446 9f390882a2c3 Even though _Py_Mangle() isn't truly public anyone can call it and Neal Norwitz <nnorwitz@gmail.com> parents: 39364 diff changeset	209 if (privateobj == NULL \|\| !PyString_Check(privateobj) \|\|
9f390882a2c3 Even though _Py_Mangle() isn't truly public anyone can call it and Neal Norwitz <nnorwitz@gmail.com> parents: 39364 diff changeset	210 name == NULL \|\| name[0] != '_' \|\| name[1] != '_') {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	211 Py_INCREF(ident);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	212 return ident;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	213 }
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	214 p = PyString_AsString(privateobj);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	215 nlen = strlen(name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	216 if (name[nlen-1] == '_' && name[nlen-2] == '_') {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	217 Py_INCREF(ident);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	218 return ident; /* Don't mangle __whatever__ */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	219 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	220 /* Strip leading underscores from class name */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	221 while (*p == '_')
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	222 p++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	223 if (*p == '\0') {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	224 Py_INCREF(ident);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	225 return ident; /* Don't mangle if class is just underscores */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	226 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	227 plen = strlen(p);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	228 ident = PyString_FromStringAndSize(NULL, 1 + nlen + plen);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	229 if (!ident)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	230 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	231 /* ident = "_" + p[:plen] + name # i.e. 1+plen+nlen bytes */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	232 buffer = PyString_AS_STRING(ident);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	233 buffer[0] = '_';
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	234 strncpy(buffer+1, p, plen);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	235 strcpy(buffer+1+plen, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	236 return ident;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	237 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	238
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	239 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	240 compiler_init(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	241 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	242 memset(c, 0, sizeof(struct compiler));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	243
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	244 c->c_stack = PyList_New(0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	245 if (!c->c_stack)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	246 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	247
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	248 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	249 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	250
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	251 PyCodeObject *
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 35993 diff changeset	252 PyAST_Compile(mod_ty mod, const char filename, PyCompilerFlags flags,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	253 PyArena *arena)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	254 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	255 struct compiler c;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	256 PyCodeObject *co = NULL;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	257 PyCompilerFlags local_flags;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	258 int merged;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	259
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	260 if (!__doc__) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	261 __doc__ = PyString_InternFromString("__doc__");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	262 if (!__doc__)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	263 return NULL;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	264 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	265
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	266 if (!compiler_init(&c))
36696 e0a77010d033 Fix assertions. Thomas Wouters <thomas@python.org> parents: 36695 diff changeset	267 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	268 c.c_filename = filename;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	269 c.c_arena = arena;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	270 c.c_future = PyFuture_FromAST(mod, filename);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	271 if (c.c_future == NULL)
36697 78de5f6b2f67 Clarify C-style exception handling with proper label name. Thomas Wouters <thomas@python.org> parents: 36696 diff changeset	272 goto finally;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	273 if (!flags) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	274 local_flags.cf_flags = 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	275 flags = &local_flags;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	276 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	277 merged = c.c_future->ff_features \| flags->cf_flags;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	278 c.c_future->ff_features = merged;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	279 flags->cf_flags = merged;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	280 c.c_flags = flags;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	281 c.c_nestlevel = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	282
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	283 c.c_st = PySymtable_Build(mod, filename, c.c_future);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	284 if (c.c_st == NULL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	285 if (!PyErr_Occurred())
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	286 PyErr_SetString(PyExc_SystemError, "no symtable");
36697 78de5f6b2f67 Clarify C-style exception handling with proper label name. Thomas Wouters <thomas@python.org> parents: 36696 diff changeset	287 goto finally;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	288 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	289
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	290 /* XXX initialize to NULL for now, need to handle */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	291 c.c_encoding = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	292
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	293 co = compiler_mod(&c, mod);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	294
36697 78de5f6b2f67 Clarify C-style exception handling with proper label name. Thomas Wouters <thomas@python.org> parents: 36696 diff changeset	295 finally:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	296 compiler_free(&c);
36696 e0a77010d033 Fix assertions. Thomas Wouters <thomas@python.org> parents: 36695 diff changeset	297 assert(co \|\| PyErr_Occurred());
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	298 return co;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	299 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	300
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	301 PyCodeObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	302 PyNode_Compile(struct _node n, const char filename)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	303 {
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 35993 diff changeset	304 PyCodeObject *co = NULL;
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	305 mod_ty mod;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	306 PyArena *arena = PyArena_New();
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	307 if (!arena)
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	308 return NULL;
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	309 mod = PyAST_FromNode(n, NULL, filename, arena);
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 35993 diff changeset	310 if (mod)
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 35993 diff changeset	311 co = PyAST_Compile(mod, filename, NULL, arena);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	312 PyArena_Free(arena);
30428 c2c10f1eb8e2 Fix leak discovered in test_new by Michael Hudson. Raymond Hettinger <python@rcn.com> parents: 30226 diff changeset	313 return co;
23868 8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 23589 diff changeset	314 }
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 23589 diff changeset	315
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	316 static void
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	317 compiler_free(struct compiler *c)
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	318 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	319 if (c->c_st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	320 PySymtable_Free(c->c_st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	321 if (c->c_future)
37558 286c81689826 Use PyObject_* allocator since FutureFeatures is small Neal Norwitz <nnorwitz@gmail.com> parents: 37555 diff changeset	322 PyObject_Free(c->c_future);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	323 Py_DECREF(c->c_stack);
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	324 }
cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	325
5373 5880384d7c71 Quickly renamed the remaining files -- this directory is done. Guido van Rossum <guido@python.org> parents: 5287 diff changeset	326 static PyObject *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	327 list2dict(PyObject *list)
1399 cc172ce05561 Added compare operations for functions and code objects. Guido van Rossum <guido@python.org> parents: 1369 diff changeset	328 {
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	329 Py_ssize_t i, n;
37067 1f4549865aad Fix some missing checks after PyTuple_New, PyList_New, PyDict_New Georg Brandl <georg@python.org> parents: 36965 diff changeset	330 PyObject v, k;
1f4549865aad Fix some missing checks after PyTuple_New, PyList_New, PyDict_New Georg Brandl <georg@python.org> parents: 36965 diff changeset	331 PyObject *dict = PyDict_New();
1f4549865aad Fix some missing checks after PyTuple_New, PyList_New, PyDict_New Georg Brandl <georg@python.org> parents: 36965 diff changeset	332 if (!dict) return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	333
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	334 n = PyList_Size(list);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	335 for (i = 0; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	336 v = PyInt_FromLong(i);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	337 if (!v) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	338 Py_DECREF(dict);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	339 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	340 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	341 k = PyList_GET_ITEM(list, i);
38406 8f7c7aeac3a5 Replace Py_BuildValue("OO") by PyTuple_Pack. Georg Brandl <georg@python.org> parents: 38084 diff changeset	342 k = PyTuple_Pack(2, k, k->ob_type);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	343 if (k == NULL \|\| PyDict_SetItem(dict, k, v) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	344 Py_XDECREF(k);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	345 Py_DECREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	346 Py_DECREF(dict);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	347 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	348 }
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	349 Py_DECREF(k);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	350 Py_DECREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	351 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	352 return dict;
1399 cc172ce05561 Added compare operations for functions and code objects. Guido van Rossum <guido@python.org> parents: 1369 diff changeset	353 }
cc172ce05561 Added compare operations for functions and code objects. Guido van Rossum <guido@python.org> parents: 1369 diff changeset	354
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	355 /* Return new dict containing names from src that match scope(s).
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	356
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	357 src is a symbol table dictionary. If the scope of a name matches
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	358 either scope_type or flag is set, insert it into the new dict. The
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	359 values are integers, starting at offset and increasing by one for
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	360 each key.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	361 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	362
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	363 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	364 dictbytype(PyObject *src, int scope_type, int flag, int offset)
16006 51811d78a9da SF Patch #103250, by pj99: Optimize a strspn() out of startup. Guido van Rossum <guido@python.org> parents: 15438 diff changeset	365 {
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	366 Py_ssize_t pos = 0, i = offset, scope;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	367 PyObject k, v, *dest = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	368
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	369 assert(offset >= 0);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	370 if (dest == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	371 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	372
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	373 while (PyDict_Next(src, &pos, &k, &v)) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	374 /* XXX this should probably be a macro in symtable.h */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	375 assert(PyInt_Check(v));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	376 scope = (PyInt_AS_LONG(v) >> SCOPE_OFF) & SCOPE_MASK;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	377
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	378 if (scope == scope_type \|\| PyInt_AS_LONG(v) & flag) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	379 PyObject tuple, item = PyInt_FromLong(i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	380 if (item == NULL) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	381 Py_DECREF(dest);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	382 return NULL;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	383 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	384 i++;
38406 8f7c7aeac3a5 Replace Py_BuildValue("OO") by PyTuple_Pack. Georg Brandl <georg@python.org> parents: 38084 diff changeset	385 tuple = PyTuple_Pack(2, k, k->ob_type);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	386 if (!tuple \|\| PyDict_SetItem(dest, tuple, item) < 0) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	387 Py_DECREF(item);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	388 Py_DECREF(dest);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	389 Py_XDECREF(tuple);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	390 return NULL;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	391 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	392 Py_DECREF(item);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	393 Py_DECREF(tuple);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	394 }
16523 9d625303f914 Reindent a function that was somehow indented by 7 spaces. Also did a Guido van Rossum <guido@python.org> parents: 16428 diff changeset	395 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	396 return dest;
16257 fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	397 }
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	398
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	399 /* Begin: Peephole optimizations ----------------------------------------- */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	400
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	401 #define GETARG(arr, i) ((int)((arr[i+2]<<8) + arr[i+1]))
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	402 #define UNCONDITIONAL_JUMP(op) (op==JUMP_ABSOLUTE \|\| op==JUMP_FORWARD)
28417 1a2fd109f6b6 Factored out test for absolute jumps. Raymond Hettinger <python@rcn.com> parents: 28406 diff changeset	403 #define ABSOLUTE_JUMP(op) (op==JUMP_ABSOLUTE \|\| op==CONTINUE_LOOP)
1a2fd109f6b6 Factored out test for absolute jumps. Raymond Hettinger <python@rcn.com> parents: 28406 diff changeset	404 #define GETJUMPTGT(arr, i) (GETARG(arr,i) + (ABSOLUTE_JUMP(arr[i]) ? 0 : i+3))
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	405 #define SETARG(arr, i, val) arr[i+2] = val>>8; arr[i+1] = val & 255
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	406 #define CODESIZE(op) (HAS_ARG(op) ? 3 : 1)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	407 #define ISBASICBLOCK(blocks, start, bytes) \
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	408 (blocks[start]==blocks[start+bytes-1])
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	409
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	410 /* Replace LOAD_CONST c1. LOAD_CONST c2 ... LOAD_CONST cn BUILD_TUPLE n
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	411 with LOAD_CONST (c1, c2, ... cn).
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	412 The consts table must still be in list form so that the
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	413 new constant (c1, c2, ... cn) can be appended.
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	414 Called with codestr pointing to the first LOAD_CONST.
34553 cd04f2d18a6f Adopt Skip's idea to optimize lists of constants in the context Raymond Hettinger <python@rcn.com> parents: 34547 diff changeset	415 Bails out with no change if one or more of the LOAD_CONSTs is missing.
cd04f2d18a6f Adopt Skip's idea to optimize lists of constants in the context Raymond Hettinger <python@rcn.com> parents: 34547 diff changeset	416 Also works for BUILD_LIST when followed by an "in" or "not in" test.
cd04f2d18a6f Adopt Skip's idea to optimize lists of constants in the context Raymond Hettinger <python@rcn.com> parents: 34547 diff changeset	417 */
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	418 static int
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	419 tuple_of_constants(unsigned char codestr, int n, PyObject consts)
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	420 {
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	421 PyObject newconst, constant;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	422 Py_ssize_t i, arg, len_consts;
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	423
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	424 /* Pre-conditions */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	425 assert(PyList_CheckExact(consts));
34553 cd04f2d18a6f Adopt Skip's idea to optimize lists of constants in the context Raymond Hettinger <python@rcn.com> parents: 34547 diff changeset	426 assert(codestr[n3] == BUILD_TUPLE \|\| codestr[n3] == BUILD_LIST);
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	427 assert(GETARG(codestr, (n*3)) == n);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	428 for (i=0 ; i<n ; i++)
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	429 assert(codestr[i*3] == LOAD_CONST);
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	430
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	431 /* Buildup new tuple of constants */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	432 newconst = PyTuple_New(n);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	433 if (newconst == NULL)
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	434 return 0;
33838 fdce3d39bec1 SF bug #1053819: Segfault in tuple_of_constants Raymond Hettinger <python@rcn.com> parents: 33822 diff changeset	435 len_consts = PyList_GET_SIZE(consts);
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	436 for (i=0 ; i<n ; i++) {
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	437 arg = GETARG(codestr, (i*3));
33838 fdce3d39bec1 SF bug #1053819: Segfault in tuple_of_constants Raymond Hettinger <python@rcn.com> parents: 33822 diff changeset	438 assert(arg < len_consts);
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	439 constant = PyList_GET_ITEM(consts, arg);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	440 Py_INCREF(constant);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	441 PyTuple_SET_ITEM(newconst, i, constant);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	442 }
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	443
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	444 /* Append folded constant onto consts */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	445 if (PyList_Append(consts, newconst)) {
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	446 Py_DECREF(newconst);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	447 return 0;
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	448 }
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	449 Py_DECREF(newconst);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	450
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	451 /* Write NOPs over old LOAD_CONSTS and
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	452 add a new LOAD_CONST newconst on top of the BUILD_TUPLE n */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	453 memset(codestr, NOP, n*3);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	454 codestr[n*3] = LOAD_CONST;
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	455 SETARG(codestr, (n*3), len_consts);
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	456 return 1;
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	457 }
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	458
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	459 /* Replace LOAD_CONST c1. LOAD_CONST c2 BINOP
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	460 with LOAD_CONST binop(c1,c2)
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	461 The consts table must still be in list form so that the
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	462 new constant can be appended.
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	463 Called with codestr pointing to the first LOAD_CONST.
34506 bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	464 Abandons the transformation if the folding fails (i.e. 1+'a').
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	465 If the new constant is a sequence, only folds when the size
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	466 is below a threshold value. That keeps pyc files from
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	467 becoming large in the presence of code like: (None,)*1000.
34506 bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	468 */
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	469 static int
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	470 fold_binops_on_constants(unsigned char codestr, PyObject consts)
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	471 {
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	472 PyObject newconst, v, *w;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	473 Py_ssize_t len_consts, size;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	474 int opcode;
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	475
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	476 /* Pre-conditions */
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	477 assert(PyList_CheckExact(consts));
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	478 assert(codestr[0] == LOAD_CONST);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	479 assert(codestr[3] == LOAD_CONST);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	480
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	481 /* Create new constant */
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	482 v = PyList_GET_ITEM(consts, GETARG(codestr, 0));
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	483 w = PyList_GET_ITEM(consts, GETARG(codestr, 3));
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	484 opcode = codestr[6];
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	485 switch (opcode) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	486 case BINARY_POWER:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	487 newconst = PyNumber_Power(v, w, Py_None);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	488 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	489 case BINARY_MULTIPLY:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	490 newconst = PyNumber_Multiply(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	491 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	492 case BINARY_DIVIDE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	493 /* Cannot fold this operation statically since
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	494 the result can depend on the run-time presence
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	495 of the -Qnew flag */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	496 return 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	497 case BINARY_TRUE_DIVIDE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	498 newconst = PyNumber_TrueDivide(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	499 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	500 case BINARY_FLOOR_DIVIDE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	501 newconst = PyNumber_FloorDivide(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	502 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	503 case BINARY_MODULO:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	504 newconst = PyNumber_Remainder(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	505 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	506 case BINARY_ADD:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	507 newconst = PyNumber_Add(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	508 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	509 case BINARY_SUBTRACT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	510 newconst = PyNumber_Subtract(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	511 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	512 case BINARY_SUBSCR:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	513 newconst = PyObject_GetItem(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	514 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	515 case BINARY_LSHIFT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	516 newconst = PyNumber_Lshift(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	517 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	518 case BINARY_RSHIFT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	519 newconst = PyNumber_Rshift(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	520 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	521 case BINARY_AND:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	522 newconst = PyNumber_And(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	523 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	524 case BINARY_XOR:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	525 newconst = PyNumber_Xor(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	526 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	527 case BINARY_OR:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	528 newconst = PyNumber_Or(v, w);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	529 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	530 default:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	531 /* Called with an unknown opcode */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	532 PyErr_Format(PyExc_SystemError,
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	533 "unexpected binary operation %d on a constant",
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	534 opcode);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	535 return 0;
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	536 }
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	537 if (newconst == NULL) {
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	538 PyErr_Clear();
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	539 return 0;
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	540 }
34506 bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	541 size = PyObject_Size(newconst);
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	542 if (size == -1)
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	543 PyErr_Clear();
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	544 else if (size > 20) {
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	545 Py_DECREF(newconst);
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	546 return 0;
bda933873758 Do not fold a constant if a large sequence will result. Raymond Hettinger <python@rcn.com> parents: 34359 diff changeset	547 }
34305 0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	548
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	549 /* Append folded constant into consts table */
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	550 len_consts = PyList_GET_SIZE(consts);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	551 if (PyList_Append(consts, newconst)) {
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	552 Py_DECREF(newconst);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	553 return 0;
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	554 }
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	555 Py_DECREF(newconst);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	556
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	557 /* Write NOP NOP NOP NOP LOAD_CONST newconst */
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	558 memset(codestr, NOP, 4);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	559 codestr[4] = LOAD_CONST;
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	560 SETARG(codestr, 4, len_consts);
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	561 return 1;
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	562 }
0c326327e722 Teach the peephole optimizer to fold simple constant expressions. Raymond Hettinger <python@rcn.com> parents: 33925 diff changeset	563
34622 516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	564 static int
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	565 fold_unaryops_on_constants(unsigned char codestr, PyObject consts)
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	566 {
34630 660419bdb4ae Preserve sign of -0.0 when result is run through marshal. Raymond Hettinger <python@rcn.com> parents: 34626 diff changeset	567 PyObject newconst=NULL, v;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	568 Py_ssize_t len_consts;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	569 int opcode;
34622 516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	570
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	571 /* Pre-conditions */
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	572 assert(PyList_CheckExact(consts));
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	573 assert(codestr[0] == LOAD_CONST);
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	574
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	575 /* Create new constant */
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	576 v = PyList_GET_ITEM(consts, GETARG(codestr, 0));
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	577 opcode = codestr[3];
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	578 switch (opcode) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	579 case UNARY_NEGATIVE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	580 /* Preserve the sign of -0.0 */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	581 if (PyObject_IsTrue(v) == 1)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	582 newconst = PyNumber_Negative(v);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	583 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	584 case UNARY_CONVERT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	585 newconst = PyObject_Repr(v);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	586 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	587 case UNARY_INVERT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	588 newconst = PyNumber_Invert(v);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	589 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	590 default:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	591 /* Called with an unknown opcode */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	592 PyErr_Format(PyExc_SystemError,
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	593 "unexpected unary operation %d on a constant",
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	594 opcode);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	595 return 0;
34622 516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	596 }
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	597 if (newconst == NULL) {
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	598 PyErr_Clear();
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	599 return 0;
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	600 }
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	601
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	602 /* Append folded constant into consts table */
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	603 len_consts = PyList_GET_SIZE(consts);
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	604 if (PyList_Append(consts, newconst)) {
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	605 Py_DECREF(newconst);
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	606 return 0;
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	607 }
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	608 Py_DECREF(newconst);
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	609
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	610 /* Write NOP LOAD_CONST newconst */
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	611 codestr[0] = NOP;
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	612 codestr[1] = LOAD_CONST;
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	613 SETARG(codestr, 1, len_consts);
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	614 return 1;
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	615 }
516bb8fd75b4 Teach the peepholer to fold unary operations on constants. Raymond Hettinger <python@rcn.com> parents: 34574 diff changeset	616
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	617 static unsigned int *
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	618 markblocks(unsigned char *code, int len)
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	619 {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	620 unsigned int blocks = (unsigned int )PyMem_Malloc(len*sizeof(int));
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	621 int i,j, opcode, blockcnt = 0;
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	622
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	623 if (blocks == NULL) {
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	624 PyErr_NoMemory();
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	625 return NULL;
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	626 }
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	627 memset(blocks, 0, len*sizeof(int));
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	628
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	629 /* Mark labels in the first pass */
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	630 for (i=0 ; i<len ; i+=CODESIZE(opcode)) {
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	631 opcode = code[i];
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	632 switch (opcode) {
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	633 case FOR_ITER:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	634 case JUMP_FORWARD:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	635 case JUMP_IF_FALSE:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	636 case JUMP_IF_TRUE:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	637 case JUMP_ABSOLUTE:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	638 case CONTINUE_LOOP:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	639 case SETUP_LOOP:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	640 case SETUP_EXCEPT:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	641 case SETUP_FINALLY:
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	642 j = GETJUMPTGT(code, i);
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	643 blocks[j] = 1;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	644 break;
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	645 }
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	646 }
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	647 /* Build block numbers in the second pass */
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	648 for (i=0 ; i<len ; i++) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	649 blockcnt += blocks[i]; /* increment blockcnt over labels */
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	650 blocks[i] = blockcnt;
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	651 }
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	652 return blocks;
6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	653 }
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	654
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	655 /* Perform basic peephole optimizations to components of a code object.
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	656 The consts object should still be in list form to allow new constants
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	657 to be appended.
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	658
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	659 To keep the optimizer simple, it bails out (does nothing) for code
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	660 containing extended arguments or that has a length over 32,700. That
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	661 allows us to avoid overflow and sign issues. Likewise, it bails when
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	662 the lineno table has complex encoding for gaps >= 255.
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	663
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	664 Optimizations are restricted to simple transformations occuring within a
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	665 single basic block. All transformations keep the code size the same or
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	666 smaller. For those that reduce size, the gaps are initially filled with
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	667 NOPs. Later those NOPs are removed and the jump addresses retargeted in
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	668 a single pass. Line numbering is adjusted accordingly. */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	669
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	670 static PyObject *
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	671 optimize_code(PyObject code, PyObject consts, PyObject *names,
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	672 PyObject *lineno_obj)
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	673 {
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	674 Py_ssize_t i, j, codelen;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	675 int nops, h, adj;
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	676 int tgt, tgttgt, opcode;
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	677 unsigned char *codestr = NULL;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	678 unsigned char *lineno;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	679 int *addrmap = NULL;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	680 int new_line, cum_orig_line, last_line, tabsiz;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	681 int cumlc=0, lastlc=0; /* Count runs of consecutive LOAD_CONSTs */
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	682 unsigned int *blocks = NULL;
32711 c7c9b68ddda2 Treat None as a constant. Raymond Hettinger <python@rcn.com> parents: 32531 diff changeset	683 char *name;
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	684
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	685 /* Bail out if an exception is set */
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	686 if (PyErr_Occurred())
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	687 goto exitUnchanged;
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	688
33272 bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	689 /* Bypass optimization when the lineno table is too complex */
bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	690 assert(PyString_Check(lineno_obj));
35126 70681267a74a Fix signedness of various char variables to stop causing a warning under gcc 4. Brett Cannon <bcannon@gmail.com> parents: 34696 diff changeset	691 lineno = (unsigned char*)PyString_AS_STRING(lineno_obj);
33272 bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	692 tabsiz = PyString_GET_SIZE(lineno_obj);
bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	693 if (memchr(lineno, 255, tabsiz) != NULL)
bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	694 goto exitUnchanged;
bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	695
33249 c654334dc961 Incorporate review comments courtesy of Neal Norwitz: Raymond Hettinger <python@rcn.com> parents: 33248 diff changeset	696 /* Avoid situations where jump retargeting could overflow */
33620 27aa0e119330 Replaced a test with an assertion. Raymond Hettinger <python@rcn.com> parents: 33539 diff changeset	697 assert(PyString_Check(code));
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	698 codelen = PyString_Size(code);
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	699 if (codelen > 32700)
33249 c654334dc961 Incorporate review comments courtesy of Neal Norwitz: Raymond Hettinger <python@rcn.com> parents: 33248 diff changeset	700 goto exitUnchanged;
c654334dc961 Incorporate review comments courtesy of Neal Norwitz: Raymond Hettinger <python@rcn.com> parents: 33248 diff changeset	701
c654334dc961 Incorporate review comments courtesy of Neal Norwitz: Raymond Hettinger <python@rcn.com> parents: 33248 diff changeset	702 /* Make a modifiable copy of the code string */
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	703 codestr = (unsigned char *)PyMem_Malloc(codelen);
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	704 if (codestr == NULL)
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	705 goto exitUnchanged;
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	706 codestr = (unsigned char *)memcpy(codestr,
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	707 PyString_AS_STRING(code), codelen);
32977 40c3a51cb71c SF bug #1004088: big code objects (>64K) may be optimized incorrectly Raymond Hettinger <python@rcn.com> parents: 32956 diff changeset	708
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	709 /* Verify that RETURN_VALUE terminates the codestring. This allows
34626 fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	710 the various transformation patterns to look ahead several
fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	711 instructions without additional checks to make sure they are not
fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	712 looking beyond the end of the code string.
fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	713 */
fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	714 if (codestr[codelen-1] != RETURN_VALUE)
fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	715 goto exitUnchanged;
fcacf9d4b8f0 Document how the pattern recognizer keeps all of its references in bounds. Raymond Hettinger <python@rcn.com> parents: 34622 diff changeset	716
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	717 /* Mapping to new jump targets after NOPs are removed */
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	718 addrmap = (int )PyMem_Malloc(codelen sizeof(int));
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	719 if (addrmap == NULL)
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	720 goto exitUnchanged;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	721
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	722 blocks = markblocks(codestr, codelen);
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	723 if (blocks == NULL)
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	724 goto exitUnchanged;
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	725 assert(PyList_Check(consts));
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	726
33875 24fc3eaa19e0 Simplify and future proof NOP counting in the peepholer. Raymond Hettinger <python@rcn.com> parents: 33861 diff changeset	727 for (i=0 ; i<codelen ; i += CODESIZE(codestr[i])) {
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	728 opcode = codestr[i];
33838 fdce3d39bec1 SF bug #1053819: Segfault in tuple_of_constants Raymond Hettinger <python@rcn.com> parents: 33822 diff changeset	729
fdce3d39bec1 SF bug #1053819: Segfault in tuple_of_constants Raymond Hettinger <python@rcn.com> parents: 33822 diff changeset	730 lastlc = cumlc;
fdce3d39bec1 SF bug #1053819: Segfault in tuple_of_constants Raymond Hettinger <python@rcn.com> parents: 33822 diff changeset	731 cumlc = 0;
fdce3d39bec1 SF bug #1053819: Segfault in tuple_of_constants Raymond Hettinger <python@rcn.com> parents: 33822 diff changeset	732
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	733 switch (opcode) {
733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	734
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	735 /* Replace UNARY_NOT JUMP_IF_FALSE POP_TOP with
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	736 with JUMP_IF_TRUE POP_TOP */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	737 case UNARY_NOT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	738 if (codestr[i+1] != JUMP_IF_FALSE \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	739 codestr[i+4] != POP_TOP \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	740 !ISBASICBLOCK(blocks,i,5))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	741 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	742 tgt = GETJUMPTGT(codestr, (i+1));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	743 if (codestr[tgt] != POP_TOP)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	744 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	745 j = GETARG(codestr, i+1) + 1;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	746 codestr[i] = JUMP_IF_TRUE;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	747 SETARG(codestr, i, j);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	748 codestr[i+3] = POP_TOP;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	749 codestr[i+4] = NOP;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	750 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	751
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	752 /* not a is b --> a is not b
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	753 not a in b --> a not in b
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	754 not a is not b --> a is b
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	755 not a not in b --> a in b
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	756 */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	757 case COMPARE_OP:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	758 j = GETARG(codestr, i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	759 if (j < 6 \|\| j > 9 \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	760 codestr[i+3] != UNARY_NOT \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	761 !ISBASICBLOCK(blocks,i,4))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	762 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	763 SETARG(codestr, i, (j^1));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	764 codestr[i+3] = NOP;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	765 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	766
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	767 /* Replace LOAD_GLOBAL/LOAD_NAME None
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	768 with LOAD_CONST None */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	769 case LOAD_NAME:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	770 case LOAD_GLOBAL:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	771 j = GETARG(codestr, i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	772 name = PyString_AsString(PyTuple_GET_ITEM(names, j));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	773 if (name == NULL \|\| strcmp(name, "None") != 0)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	774 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	775 for (j=0 ; j < PyList_GET_SIZE(consts) ; j++) {
40997 be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	776 if (PyList_GET_ITEM(consts, j) == Py_None)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	777 break;
40997 be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	778 }
be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	779 if (j == PyList_GET_SIZE(consts)) {
be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	780 if (PyList_Append(consts, Py_None) == -1)
be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	781 goto exitUnchanged;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	782 }
40997 be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	783 assert(PyList_GET_ITEM(consts, j) == Py_None);
be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	784 codestr[i] = LOAD_CONST;
be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	785 SETARG(codestr, i, j);
be68da561dcd Fix constantification of None. Raymond Hettinger <python@rcn.com> parents: 40233 diff changeset	786 cumlc = lastlc + 1;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	787 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	788
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	789 /* Skip over LOAD_CONST trueconst
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	790 JUMP_IF_FALSE xx POP_TOP */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	791 case LOAD_CONST:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	792 cumlc = lastlc + 1;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	793 j = GETARG(codestr, i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	794 if (codestr[i+3] != JUMP_IF_FALSE \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	795 codestr[i+6] != POP_TOP \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	796 !ISBASICBLOCK(blocks,i,7) \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	797 !PyObject_IsTrue(PyList_GET_ITEM(consts, j)))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	798 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	799 memset(codestr+i, NOP, 7);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	800 cumlc = 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	801 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	802
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	803 /* Try to fold tuples of constants (includes a case for lists
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	804 which are only used for "in" and "not in" tests).
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	805 Skip over BUILD_SEQN 1 UNPACK_SEQN 1.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	806 Replace BUILD_SEQN 2 UNPACK_SEQN 2 with ROT2.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	807 Replace BUILD_SEQN 3 UNPACK_SEQN 3 with ROT3 ROT2. */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	808 case BUILD_TUPLE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	809 case BUILD_LIST:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	810 j = GETARG(codestr, i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	811 h = i - 3 * j;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	812 if (h >= 0 &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	813 j <= lastlc &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	814 ((opcode == BUILD_TUPLE &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	815 ISBASICBLOCK(blocks, h, 3*(j+1))) \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	816 (opcode == BUILD_LIST &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	817 codestr[i+3]==COMPARE_OP &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	818 ISBASICBLOCK(blocks, h, 3*(j+2)) &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	819 (GETARG(codestr,i+3)==6 \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	820 GETARG(codestr,i+3)==7))) &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	821 tuple_of_constants(&codestr[h], j, consts)) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	822 assert(codestr[i] == LOAD_CONST);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	823 cumlc = 1;
32711 c7c9b68ddda2 Treat None as a constant. Raymond Hettinger <python@rcn.com> parents: 32531 diff changeset	824 break;
c7c9b68ddda2 Treat None as a constant. Raymond Hettinger <python@rcn.com> parents: 32531 diff changeset	825 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	826 if (codestr[i+3] != UNPACK_SEQUENCE \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	827 !ISBASICBLOCK(blocks,i,6) \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	828 j != GETARG(codestr, i+3))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	829 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	830 if (j == 1) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	831 memset(codestr+i, NOP, 6);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	832 } else if (j == 2) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	833 codestr[i] = ROT_TWO;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	834 memset(codestr+i+1, NOP, 5);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	835 } else if (j == 3) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	836 codestr[i] = ROT_THREE;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	837 codestr[i+1] = ROT_TWO;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	838 memset(codestr+i+2, NOP, 4);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	839 }
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	840 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	841
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	842 /* Fold binary ops on constants.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	843 LOAD_CONST c1 LOAD_CONST c2 BINOP --> LOAD_CONST binop(c1,c2) */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	844 case BINARY_POWER:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	845 case BINARY_MULTIPLY:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	846 case BINARY_TRUE_DIVIDE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	847 case BINARY_FLOOR_DIVIDE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	848 case BINARY_MODULO:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	849 case BINARY_ADD:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	850 case BINARY_SUBTRACT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	851 case BINARY_SUBSCR:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	852 case BINARY_LSHIFT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	853 case BINARY_RSHIFT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	854 case BINARY_AND:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	855 case BINARY_XOR:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	856 case BINARY_OR:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	857 if (lastlc >= 2 &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	858 ISBASICBLOCK(blocks, i-6, 7) &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	859 fold_binops_on_constants(&codestr[i-6], consts)) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	860 i -= 2;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	861 assert(codestr[i] == LOAD_CONST);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	862 cumlc = 1;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	863 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	864 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	865
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	866 /* Fold unary ops on constants.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	867 LOAD_CONST c1 UNARY_OP --> LOAD_CONST unary_op(c) */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	868 case UNARY_NEGATIVE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	869 case UNARY_CONVERT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	870 case UNARY_INVERT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	871 if (lastlc >= 1 &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	872 ISBASICBLOCK(blocks, i-3, 4) &&
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	873 fold_unaryops_on_constants(&codestr[i-3], consts)) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	874 i -= 2;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	875 assert(codestr[i] == LOAD_CONST);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	876 cumlc = 1;
33259 b63b30821ef4 Simplify chains of conditional jumps. Raymond Hettinger <python@rcn.com> parents: 33249 diff changeset	877 }
b63b30821ef4 Simplify chains of conditional jumps. Raymond Hettinger <python@rcn.com> parents: 33249 diff changeset	878 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	879
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	880 /* Simplify conditional jump to conditional jump where the
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	881 result of the first test implies the success of a similar
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	882 test or the failure of the opposite test.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	883 Arises in code like:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	884 "if a and b:"
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	885 "if a or b:"
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	886 "a and b or c"
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	887 "(a and b) and c"
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	888 x:JUMP_IF_FALSE y y:JUMP_IF_FALSE z --> x:JUMP_IF_FALSE z
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	889 x:JUMP_IF_FALSE y y:JUMP_IF_TRUE z --> x:JUMP_IF_FALSE y+3
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	890 where y+3 is the instruction following the second test.
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	891 */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	892 case JUMP_IF_FALSE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	893 case JUMP_IF_TRUE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	894 tgt = GETJUMPTGT(codestr, i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	895 j = codestr[tgt];
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	896 if (j == JUMP_IF_FALSE \|\| j == JUMP_IF_TRUE) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	897 if (j == opcode) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	898 tgttgt = GETJUMPTGT(codestr, tgt) - i - 3;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	899 SETARG(codestr, i, tgttgt);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	900 } else {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	901 tgt -= i;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	902 SETARG(codestr, i, tgt);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	903 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	904 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	905 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	906 /* Intentional fallthrough */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	907
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	908 /* Replace jumps to unconditional jumps */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	909 case FOR_ITER:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	910 case JUMP_FORWARD:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	911 case JUMP_ABSOLUTE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	912 case CONTINUE_LOOP:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	913 case SETUP_LOOP:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	914 case SETUP_EXCEPT:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	915 case SETUP_FINALLY:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	916 tgt = GETJUMPTGT(codestr, i);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	917 if (!UNCONDITIONAL_JUMP(codestr[tgt]))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	918 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	919 tgttgt = GETJUMPTGT(codestr, tgt);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	920 if (opcode == JUMP_FORWARD) /* JMP_ABS can go backwards */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	921 opcode = JUMP_ABSOLUTE;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	922 if (!ABSOLUTE_JUMP(opcode))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	923 tgttgt -= i + 3; /* Calc relative jump addr */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	924 if (tgttgt < 0) /* No backward relative jumps */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	925 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	926 codestr[i] = opcode;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	927 SETARG(codestr, i, tgttgt);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	928 break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	929
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	930 case EXTENDED_ARG:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	931 goto exitUnchanged;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	932
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	933 /* Replace RETURN LOAD_CONST None RETURN with just RETURN */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	934 case RETURN_VALUE:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	935 if (i+4 >= codelen \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	936 codestr[i+4] != RETURN_VALUE \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	937 !ISBASICBLOCK(blocks,i,5))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	938 continue;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	939 memset(codestr+i+1, NOP, 4);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	940 break;
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	941 }
733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	942 }
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	943
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	944 /* Fixup linenotab */
33875 24fc3eaa19e0 Simplify and future proof NOP counting in the peepholer. Raymond Hettinger <python@rcn.com> parents: 33861 diff changeset	945 for (i=0, nops=0 ; i<codelen ; i += CODESIZE(codestr[i])) {
24fc3eaa19e0 Simplify and future proof NOP counting in the peepholer. Raymond Hettinger <python@rcn.com> parents: 33861 diff changeset	946 addrmap[i] = i - nops;
24fc3eaa19e0 Simplify and future proof NOP counting in the peepholer. Raymond Hettinger <python@rcn.com> parents: 33861 diff changeset	947 if (codestr[i] == NOP)
24fc3eaa19e0 Simplify and future proof NOP counting in the peepholer. Raymond Hettinger <python@rcn.com> parents: 33861 diff changeset	948 nops++;
24fc3eaa19e0 Simplify and future proof NOP counting in the peepholer. Raymond Hettinger <python@rcn.com> parents: 33861 diff changeset	949 }
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	950 cum_orig_line = 0;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	951 last_line = 0;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	952 for (i=0 ; i < tabsiz ; i+=2) {
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	953 cum_orig_line += lineno[i];
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	954 new_line = addrmap[cum_orig_line];
33272 bac997b79b19 Bypass peepholing of code with lineno tables having intervals >= 255. Raymond Hettinger <python@rcn.com> parents: 33271 diff changeset	955 assert (new_line - last_line < 255);
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	956 lineno[i] =((unsigned char)(new_line - last_line));
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	957 last_line = new_line;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	958 }
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	959
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	960 /* Remove NOPs and fixup jump targets */
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	961 for (i=0, h=0 ; i<codelen ; ) {
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	962 opcode = codestr[i];
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	963 switch (opcode) {
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	964 case NOP:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	965 i++;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	966 continue;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	967
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	968 case JUMP_ABSOLUTE:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	969 case CONTINUE_LOOP:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	970 j = addrmap[GETARG(codestr, i)];
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	971 SETARG(codestr, i, j);
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	972 break;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	973
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	974 case FOR_ITER:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	975 case JUMP_FORWARD:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	976 case JUMP_IF_FALSE:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	977 case JUMP_IF_TRUE:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	978 case SETUP_LOOP:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	979 case SETUP_EXCEPT:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	980 case SETUP_FINALLY:
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	981 j = addrmap[GETARG(codestr, i) + i + 3] - addrmap[i] - 3;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	982 SETARG(codestr, i, j);
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	983 break;
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	984 }
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	985 adj = CODESIZE(opcode);
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	986 while (adj--)
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	987 codestr[h++] = codestr[i++];
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	988 }
33249 c654334dc961 Incorporate review comments courtesy of Neal Norwitz: Raymond Hettinger <python@rcn.com> parents: 33248 diff changeset	989 assert(h + nops == codelen);
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	990
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	991 code = PyString_FromStringAndSize((char *)codestr, h);
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	992 PyMem_Free(addrmap);
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	993 PyMem_Free(codestr);
31728 6509354e7876 Improve byte coding for multiple assignments. Raymond Hettinger <python@rcn.com> parents: 31618 diff changeset	994 PyMem_Free(blocks);
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	995 return code;
733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	996
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	997 exitUnchanged:
33860 3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	998 if (blocks != NULL)
3467288089a1 Adopt some peepholer suggestions from Armin Rigo: Raymond Hettinger <python@rcn.com> parents: 33838 diff changeset	999 PyMem_Free(blocks);
33248 1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	1000 if (addrmap != NULL)
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	1001 PyMem_Free(addrmap);
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	1002 if (codestr != NULL)
1f9b9c226b43 SF Patch #1013667: Cleanup Peepholer Output Raymond Hettinger <python@rcn.com> parents: 33169 diff changeset	1003 PyMem_Free(codestr);
28406 733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	1004 Py_INCREF(code);
733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	1005 return code;
733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	1006 }
733729261c41 SF patch #707257: Improve code generation Raymond Hettinger <python@rcn.com> parents: 28402 diff changeset	1007
33539 2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	1008 /* End: Peephole optimizations ----------------------------------------- */
2b49b4a85d9e SF patch #1031667: Fold tuples of constants into a single constant Raymond Hettinger <python@rcn.com> parents: 33353 diff changeset	1009
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1010 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1011
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1012 Leave this debugging code for just a little longer.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1013
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1014 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1015 compiler_display_symbols(PyObject name, PyObject symbols)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1016 {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1017 PyObject key, value;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1018 int flags;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1019 Py_ssize_t pos = 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1020
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1021 fprintf(stderr, "block %s\n", PyString_AS_STRING(name));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1022 while (PyDict_Next(symbols, &pos, &key, &value)) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1023 flags = PyInt_AsLong(value);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1024 fprintf(stderr, "var %s:", PyString_AS_STRING(key));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1025 if (flags & DEF_GLOBAL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1026 fprintf(stderr, " declared_global");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1027 if (flags & DEF_LOCAL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1028 fprintf(stderr, " local");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1029 if (flags & DEF_PARAM)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1030 fprintf(stderr, " param");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1031 if (flags & DEF_STAR)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1032 fprintf(stderr, " stararg");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1033 if (flags & DEF_DOUBLESTAR)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1034 fprintf(stderr, " starstar");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1035 if (flags & DEF_INTUPLE)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1036 fprintf(stderr, " tuple");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1037 if (flags & DEF_FREE)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1038 fprintf(stderr, " free");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1039 if (flags & DEF_FREE_GLOBAL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1040 fprintf(stderr, " global");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1041 if (flags & DEF_FREE_CLASS)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1042 fprintf(stderr, " free/class");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1043 if (flags & DEF_IMPORT)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1044 fprintf(stderr, " import");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1045 fprintf(stderr, "\n");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1046 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1047 fprintf(stderr, "\n");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1048 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1049 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1050
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1051 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1052 compiler_unit_check(struct compiler_unit *u)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1053 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1054 basicblock *block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1055 for (block = u->u_blocks; block != NULL; block = block->b_list) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1056 assert(block != (void *)0xcbcbcbcb);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1057 assert(block != (void *)0xfbfbfbfb);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1058 assert(block != (void *)0xdbdbdbdb);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1059 if (block->b_instr != NULL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1060 assert(block->b_ialloc > 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1061 assert(block->b_iused > 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1062 assert(block->b_ialloc >= block->b_iused);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1063 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1064 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1065 assert (block->b_iused == 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1066 assert (block->b_ialloc == 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1067 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1068 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1069 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1070
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1071 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1072 compiler_unit_free(struct compiler_unit *u)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1073 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1074 basicblock b, next;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1075
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1076 compiler_unit_check(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1077 b = u->u_blocks;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1078 while (b != NULL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1079 if (b->b_instr)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1080 PyObject_Free((void *)b->b_instr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1081 next = b->b_list;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1082 PyObject_Free((void *)b);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1083 b = next;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1084 }
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1085 Py_CLEAR(u->u_ste);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1086 Py_CLEAR(u->u_name);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1087 Py_CLEAR(u->u_consts);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1088 Py_CLEAR(u->u_names);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1089 Py_CLEAR(u->u_varnames);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1090 Py_CLEAR(u->u_freevars);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1091 Py_CLEAR(u->u_cellvars);
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1092 Py_CLEAR(u->u_private);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1093 PyObject_Free(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1094 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1095
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1096 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1097 compiler_enter_scope(struct compiler c, identifier name, void key,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1098 int lineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1099 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1100 struct compiler_unit *u;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1101
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1102 u = (struct compiler_unit *)PyObject_Malloc(sizeof(
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1103 struct compiler_unit));
36076 aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	1104 if (!u) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1105 PyErr_NoMemory();
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1106 return 0;
36076 aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	1107 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1108 memset(u, 0, sizeof(struct compiler_unit));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1109 u->u_argcount = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1110 u->u_ste = PySymtable_Lookup(c->c_st, key);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1111 if (!u->u_ste) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1112 compiler_unit_free(u);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1113 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1114 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1115 Py_INCREF(name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1116 u->u_name = name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1117 u->u_varnames = list2dict(u->u_ste->ste_varnames);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1118 u->u_cellvars = dictbytype(u->u_ste->ste_symbols, CELL, 0, 0);
39131 7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1119 if (!u->u_varnames \|\| !u->u_cellvars) {
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1120 compiler_unit_free(u);
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1121 return 0;
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1122 }
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1123
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1124 u->u_freevars = dictbytype(u->u_ste->ste_symbols, FREE, DEF_FREE_CLASS,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1125 PyDict_Size(u->u_cellvars));
39131 7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1126 if (!u->u_freevars) {
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1127 compiler_unit_free(u);
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1128 return 0;
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 39094 diff changeset	1129 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1130
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1131 u->u_blocks = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1132 u->u_tmpname = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1133 u->u_nfblocks = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1134 u->u_firstlineno = lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1135 u->u_lineno = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1136 u->u_lineno_set = false;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1137 u->u_consts = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1138 if (!u->u_consts) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1139 compiler_unit_free(u);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1140 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1141 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1142 u->u_names = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1143 if (!u->u_names) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1144 compiler_unit_free(u);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1145 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1146 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1147
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1148 u->u_private = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1149
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1150 /* Push the old compiler_unit on the stack. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1151 if (c->u) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1152 PyObject *wrapper = PyCObject_FromVoidPtr(c->u, NULL);
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1153 if (!wrapper \|\| PyList_Append(c->c_stack, wrapper) < 0) {
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1154 Py_XDECREF(wrapper);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1155 compiler_unit_free(u);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1156 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1157 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1158 Py_DECREF(wrapper);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1159 u->u_private = c->u->u_private;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1160 Py_XINCREF(u->u_private);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1161 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1162 c->u = u;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1163
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1164 c->c_nestlevel++;
36173 ade46371f04b Adjust usage of compiler_use_new_block to its return type. Martin v. Löwis <martin@v.loewis.de> parents: 36084 diff changeset	1165 if (compiler_use_new_block(c) == NULL)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1166 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1167
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1168 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1169 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1170
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	1171 static void
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1172 compiler_exit_scope(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1173 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1174 int n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1175 PyObject *wrapper;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1176
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1177 c->c_nestlevel--;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1178 compiler_unit_free(c->u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1179 /* Restore c->u to the parent unit. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1180 n = PyList_GET_SIZE(c->c_stack) - 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1181 if (n >= 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1182 wrapper = PyList_GET_ITEM(c->c_stack, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1183 c->u = (struct compiler_unit *)PyCObject_AsVoidPtr(wrapper);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	1184 /* we are deleting from a list so this really shouldn't fail */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1185 if (PySequence_DelItem(c->c_stack, n) < 0)
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	1186 Py_FatalError("compiler_exit_scope()");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1187 compiler_unit_check(c->u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1188 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1189 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1190 c->u = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1191
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1192 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1193
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1194 /* Allocate a new "anonymous" local variable.
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1195 Used by list comprehensions and with statements.
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1196 */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1197
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1198 static PyObject *
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1199 compiler_new_tmpname(struct compiler *c)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1200 {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1201 char tmpname[256];
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1202 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]", ++c->u->u_tmpname);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1203 return PyString_FromString(tmpname);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1204 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1205
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1206 /* Allocate a new block and return a pointer to it.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1207 Returns NULL on error.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1208 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1209
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1210 static basicblock *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1211 compiler_new_block(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1212 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1213 basicblock *b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1214 struct compiler_unit *u;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1215
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1216 u = c->u;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1217 b = (basicblock *)PyObject_Malloc(sizeof(basicblock));
36076 aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	1218 if (b == NULL) {
aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	1219 PyErr_NoMemory();
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1220 return NULL;
36076 aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	1221 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1222 memset((void *)b, 0, sizeof(basicblock));
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	1223 /* Extend the singly linked list of blocks with new block. */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1224 b->b_list = u->u_blocks;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1225 u->u_blocks = b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1226 return b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1227 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1228
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1229 static basicblock *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1230 compiler_use_new_block(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1231 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1232 basicblock *block = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1233 if (block == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1234 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1235 c->u->u_curblock = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1236 return block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1237 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1238
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1239 static basicblock *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1240 compiler_next_block(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1241 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1242 basicblock *block = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1243 if (block == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1244 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1245 c->u->u_curblock->b_next = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1246 c->u->u_curblock = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1247 return block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1248 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1249
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1250 static basicblock *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1251 compiler_use_next_block(struct compiler c, basicblock block)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1252 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1253 assert(block != NULL);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1254 c->u->u_curblock->b_next = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1255 c->u->u_curblock = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1256 return block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1257 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1258
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1259 /* Returns the offset of the next instruction in the current block's
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1260 b_instr array. Resizes the b_instr as necessary.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1261 Returns -1 on failure.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1262 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1263
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1264 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1265 compiler_next_instr(struct compiler c, basicblock b)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1266 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1267 assert(b != NULL);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1268 if (b->b_instr == NULL) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1269 b->b_instr = (struct instr *)PyObject_Malloc(
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1270 sizeof(struct instr) * DEFAULT_BLOCK_SIZE);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1271 if (b->b_instr == NULL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1272 PyErr_NoMemory();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1273 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1274 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1275 b->b_ialloc = DEFAULT_BLOCK_SIZE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1276 memset((char *)b->b_instr, 0,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1277 sizeof(struct instr) * DEFAULT_BLOCK_SIZE);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1278 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1279 else if (b->b_iused == b->b_ialloc) {
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1280 struct instr *tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1281 size_t oldsize, newsize;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1282 oldsize = b->b_ialloc * sizeof(struct instr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1283 newsize = oldsize << 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1284 if (newsize == 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1285 PyErr_NoMemory();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1286 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1287 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1288 b->b_ialloc <<= 1;
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1289 tmp = (struct instr *)PyObject_Realloc(
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1290 (void *)b->b_instr, newsize);
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1291 if (tmp == NULL) {
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1292 PyErr_NoMemory();
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1293 return -1;
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1294 }
12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	1295 b->b_instr = tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1296 memset((char *)b->b_instr + oldsize, 0, newsize - oldsize);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1297 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1298 return b->b_iused++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1299 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1300
45155 86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1301 /* Set the i_lineno member of the instruction at offset off if the
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1302 line number for the current expression/statement has not
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	1303 already been set. If it has been set, the call has no effect.
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	1304
45155 86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1305 The line number is reset in the following cases:
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1306 - when entering a new scope
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1307 - on each statement
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1308 - on each expression that start a new line
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1309 - before the "except" clause
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	1310 - before the "for" and "while" expressions
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	1311 */
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	1312
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1313 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1314 compiler_set_lineno(struct compiler *c, int off)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1315 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1316 basicblock *b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1317 if (c->u->u_lineno_set)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1318 return;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1319 c->u->u_lineno_set = true;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1320 b = c->u->u_curblock;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1321 b->b_instr[off].i_lineno = c->u->u_lineno;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1322 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1323
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1324 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1325 opcode_stack_effect(int opcode, int oparg)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1326 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1327 switch (opcode) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1328 case POP_TOP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1329 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1330 case ROT_TWO:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1331 case ROT_THREE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1332 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1333 case DUP_TOP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1334 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1335 case ROT_FOUR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1336 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1337
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1338 case UNARY_POSITIVE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1339 case UNARY_NEGATIVE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1340 case UNARY_NOT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1341 case UNARY_CONVERT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1342 case UNARY_INVERT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1343 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1344
36824 07f330ad1b47 SF bug 1442442: LIST_APPEND optimization got lost in the AST merge. Neal Norwitz <nnorwitz@gmail.com> parents: 36804 diff changeset	1345 case LIST_APPEND:
07f330ad1b47 SF bug 1442442: LIST_APPEND optimization got lost in the AST merge. Neal Norwitz <nnorwitz@gmail.com> parents: 36804 diff changeset	1346 return -2;
07f330ad1b47 SF bug 1442442: LIST_APPEND optimization got lost in the AST merge. Neal Norwitz <nnorwitz@gmail.com> parents: 36804 diff changeset	1347
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1348 case BINARY_POWER:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1349 case BINARY_MULTIPLY:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1350 case BINARY_DIVIDE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1351 case BINARY_MODULO:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1352 case BINARY_ADD:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1353 case BINARY_SUBTRACT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1354 case BINARY_SUBSCR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1355 case BINARY_FLOOR_DIVIDE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1356 case BINARY_TRUE_DIVIDE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1357 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1358 case INPLACE_FLOOR_DIVIDE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1359 case INPLACE_TRUE_DIVIDE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1360 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1361
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1362 case SLICE+0:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1363 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1364 case SLICE+1:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1365 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1366 case SLICE+2:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1367 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1368 case SLICE+3:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1369 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1370
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1371 case STORE_SLICE+0:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1372 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1373 case STORE_SLICE+1:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1374 return -3;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1375 case STORE_SLICE+2:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1376 return -3;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1377 case STORE_SLICE+3:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1378 return -4;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1379
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1380 case DELETE_SLICE+0:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1381 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1382 case DELETE_SLICE+1:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1383 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1384 case DELETE_SLICE+2:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1385 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1386 case DELETE_SLICE+3:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1387 return -3;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1388
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1389 case INPLACE_ADD:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1390 case INPLACE_SUBTRACT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1391 case INPLACE_MULTIPLY:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1392 case INPLACE_DIVIDE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1393 case INPLACE_MODULO:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1394 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1395 case STORE_SUBSCR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1396 return -3;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1397 case DELETE_SUBSCR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1398 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1399
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1400 case BINARY_LSHIFT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1401 case BINARY_RSHIFT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1402 case BINARY_AND:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1403 case BINARY_XOR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1404 case BINARY_OR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1405 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1406 case INPLACE_POWER:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1407 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1408 case GET_ITER:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1409 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1410
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1411 case PRINT_EXPR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1412 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1413 case PRINT_ITEM:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1414 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1415 case PRINT_NEWLINE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1416 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1417 case PRINT_ITEM_TO:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1418 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1419 case PRINT_NEWLINE_TO:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1420 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1421 case INPLACE_LSHIFT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1422 case INPLACE_RSHIFT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1423 case INPLACE_AND:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1424 case INPLACE_XOR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1425 case INPLACE_OR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1426 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1427 case BREAK_LOOP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1428 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1429 case WITH_CLEANUP:
36926 fc10ff322df1 Um, I thought I'd already checked this in. Guido van Rossum <guido@python.org> parents: 36824 diff changeset	1430 return -1; /* XXX Sometimes more */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1431 case LOAD_LOCALS:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1432 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1433 case RETURN_VALUE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1434 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1435 case IMPORT_STAR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1436 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1437 case EXEC_STMT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1438 return -3;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1439 case YIELD_VALUE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1440 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1441
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1442 case POP_BLOCK:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1443 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1444 case END_FINALLY:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1445 return -1; /* or -2 or -3 if exception occurred */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1446 case BUILD_CLASS:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1447 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1448
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1449 case STORE_NAME:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1450 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1451 case DELETE_NAME:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1452 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1453 case UNPACK_SEQUENCE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1454 return oparg-1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1455 case FOR_ITER:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1456 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1457
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1458 case STORE_ATTR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1459 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1460 case DELETE_ATTR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1461 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1462 case STORE_GLOBAL:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1463 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1464 case DELETE_GLOBAL:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1465 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1466 case DUP_TOPX:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1467 return oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1468 case LOAD_CONST:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1469 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1470 case LOAD_NAME:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1471 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1472 case BUILD_TUPLE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1473 case BUILD_LIST:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1474 return 1-oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1475 case BUILD_MAP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1476 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1477 case LOAD_ATTR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1478 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1479 case COMPARE_OP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1480 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1481 case IMPORT_NAME:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1482 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1483 case IMPORT_FROM:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1484 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1485
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1486 case JUMP_FORWARD:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1487 case JUMP_IF_FALSE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1488 case JUMP_IF_TRUE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1489 case JUMP_ABSOLUTE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1490 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1491
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1492 case LOAD_GLOBAL:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1493 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1494
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1495 case CONTINUE_LOOP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1496 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1497 case SETUP_LOOP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1498 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1499 case SETUP_EXCEPT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1500 case SETUP_FINALLY:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1501 return 3; /* actually pushed by an exception */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1502
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1503 case LOAD_FAST:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1504 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1505 case STORE_FAST:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1506 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1507 case DELETE_FAST:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1508 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1509
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1510 case RAISE_VARARGS:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1511 return -oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1512 #define NARGS(o) (((o) % 256) + 2*((o) / 256))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1513 case CALL_FUNCTION:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1514 return -NARGS(oparg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1515 case CALL_FUNCTION_VAR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1516 case CALL_FUNCTION_KW:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1517 return -NARGS(oparg)-1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1518 case CALL_FUNCTION_VAR_KW:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1519 return -NARGS(oparg)-2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1520 #undef NARGS
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1521 case MAKE_FUNCTION:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1522 return -oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1523 case BUILD_SLICE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1524 if (oparg == 3)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1525 return -2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1526 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1527 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1528
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1529 case MAKE_CLOSURE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1530 return -oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1531 case LOAD_CLOSURE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1532 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1533 case LOAD_DEREF:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1534 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1535 case STORE_DEREF:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1536 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1537 default:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1538 fprintf(stderr, "opcode = %d\n", opcode);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1539 Py_FatalError("opcode_stack_effect()");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1540
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1541 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1542 return 0; /* not reachable */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1543 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1544
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1545 /* Add an opcode with no argument.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1546 Returns 0 on failure, 1 on success.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1547 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1548
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1549 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1550 compiler_addop(struct compiler *c, int opcode)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1551 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1552 basicblock *b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1553 struct instr *i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1554 int off;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1555 off = compiler_next_instr(c, c->u->u_curblock);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1556 if (off < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1557 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1558 b = c->u->u_curblock;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1559 i = &b->b_instr[off];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1560 i->i_opcode = opcode;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1561 i->i_hasarg = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1562 if (opcode == RETURN_VALUE)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1563 b->b_return = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1564 compiler_set_lineno(c, off);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1565 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1566 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1567
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1568 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1569 compiler_add_o(struct compiler c, PyObject dict, PyObject *o)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1570 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1571 PyObject t, v;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	1572 Py_ssize_t arg;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1573
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1574 /* necessary to make sure types aren't coerced (e.g., int and long) */
44865 8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1575 /* _and_ to distinguish 0.0 from -0.0 e.g. on IEEE platforms */
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1576 if (PyFloat_Check(o)) {
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1577 double d = PyFloat_AS_DOUBLE(o);
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1578 unsigned char* p = (unsigned char*) &d;
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1579 /* all we need is to make the tuple different in either the 0.0
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1580 * or -0.0 case from all others, just to avoid the "coercion".
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1581 */
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1582 if (*p==0 && p[sizeof(double)-1]==0)
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1583 t = PyTuple_Pack(3, o, o->ob_type, Py_None);
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1584 else
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1585 t = PyTuple_Pack(2, o, o->ob_type);
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1586 } else {
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1587 t = PyTuple_Pack(2, o, o->ob_type);
8103f0198967 Issue 1678380: fix a bug identifying -0.0 and 0.0 Mark Dickinson <dickinsm@gmail.com> parents: 43403 diff changeset	1588 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1589 if (t == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1590 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1591
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1592 v = PyDict_GetItem(dict, t);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1593 if (!v) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1594 arg = PyDict_Size(dict);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1595 v = PyInt_FromLong(arg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1596 if (!v) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1597 Py_DECREF(t);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1598 return -1;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1599 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1600 if (PyDict_SetItem(dict, t, v) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1601 Py_DECREF(t);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1602 Py_DECREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1603 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1604 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1605 Py_DECREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1606 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1607 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1608 arg = PyInt_AsLong(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1609 Py_DECREF(t);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1610 return arg;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1611 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1612
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1613 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1614 compiler_addop_o(struct compiler c, int opcode, PyObject dict,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1615 PyObject *o)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1616 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1617 int arg = compiler_add_o(c, dict, o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1618 if (arg < 0)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1619 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1620 return compiler_addop_i(c, opcode, arg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1621 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1622
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1623 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1624 compiler_addop_name(struct compiler c, int opcode, PyObject dict,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1625 PyObject *o)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1626 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1627 int arg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1628 PyObject *mangled = _Py_Mangle(c->u->u_private, o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1629 if (!mangled)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1630 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1631 arg = compiler_add_o(c, dict, mangled);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1632 Py_DECREF(mangled);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1633 if (arg < 0)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1634 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1635 return compiler_addop_i(c, opcode, arg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1636 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1637
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1638 /* Add an opcode with an integer argument.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1639 Returns 0 on failure, 1 on success.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1640 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1641
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1642 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1643 compiler_addop_i(struct compiler *c, int opcode, int oparg)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1644 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1645 struct instr *i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1646 int off;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1647 off = compiler_next_instr(c, c->u->u_curblock);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1648 if (off < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1649 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1650 i = &c->u->u_curblock->b_instr[off];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1651 i->i_opcode = opcode;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1652 i->i_oparg = oparg;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1653 i->i_hasarg = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1654 compiler_set_lineno(c, off);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1655 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1656 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1657
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1658 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1659 compiler_addop_j(struct compiler c, int opcode, basicblock b, int absolute)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1660 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1661 struct instr *i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1662 int off;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1663
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1664 assert(b != NULL);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1665 off = compiler_next_instr(c, c->u->u_curblock);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1666 if (off < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1667 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1668 i = &c->u->u_curblock->b_instr[off];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1669 i->i_opcode = opcode;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1670 i->i_target = b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1671 i->i_hasarg = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1672 if (absolute)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1673 i->i_jabs = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1674 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1675 i->i_jrel = 1;
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	1676 compiler_set_lineno(c, off);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1677 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1678 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1679
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1680 /* The distinction between NEW_BLOCK and NEXT_BLOCK is subtle. (I'd
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1681 like to find better names.) NEW_BLOCK() creates a new block and sets
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1682 it as the current block. NEXT_BLOCK() also creates an implicit jump
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1683 from the current block to the new block.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1684 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1685
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1686 /* XXX The returns inside these macros make it impossible to decref
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1687 objects created in the local function.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1688 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1689
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1690
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1691 #define NEW_BLOCK(C) { \
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1692 if (compiler_use_new_block((C)) == NULL) \
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1693 return 0; \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1694 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1695
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1696 #define NEXT_BLOCK(C) { \
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1697 if (compiler_next_block((C)) == NULL) \
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1698 return 0; \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1699 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1700
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1701 #define ADDOP(C, OP) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1702 if (!compiler_addop((C), (OP))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1703 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1704 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1705
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1706 #define ADDOP_IN_SCOPE(C, OP) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1707 if (!compiler_addop((C), (OP))) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1708 compiler_exit_scope(c); \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1709 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1710 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1711 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1712
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1713 #define ADDOP_O(C, OP, O, TYPE) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1714 if (!compiler_addop_o((C), (OP), (C)->u->u_ ## TYPE, (O))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1715 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1716 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1717
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1718 #define ADDOP_NAME(C, OP, O, TYPE) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1719 if (!compiler_addop_name((C), (OP), (C)->u->u_ ## TYPE, (O))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1720 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1721 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1722
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1723 #define ADDOP_I(C, OP, O) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1724 if (!compiler_addop_i((C), (OP), (O))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1725 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1726 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1727
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1728 #define ADDOP_JABS(C, OP, O) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1729 if (!compiler_addop_j((C), (OP), (O), 1)) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1730 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1731 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1732
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1733 #define ADDOP_JREL(C, OP, O) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1734 if (!compiler_addop_j((C), (OP), (O), 0)) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1735 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1736 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1737
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1738 /* VISIT and VISIT_SEQ takes an ASDL type as their second argument. They use
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1739 the ASDL name to synthesize the name of the C type and the visit function.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1740 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1741
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1742 #define VISIT(C, TYPE, V) {\
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1743 if (!compiler_visit_ ## TYPE((C), (V))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1744 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1745 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1746
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1747 #define VISIT_IN_SCOPE(C, TYPE, V) {\
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1748 if (!compiler_visit_ ## TYPE((C), (V))) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1749 compiler_exit_scope(c); \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1750 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1751 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1752 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1753
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1754 #define VISIT_SLICE(C, V, CTX) {\
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1755 if (!compiler_visit_slice((C), (V), (CTX))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1756 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1757 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1758
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1759 #define VISIT_SEQ(C, TYPE, SEQ) { \
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	1760 int _i; \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1761 asdl_seq seq = (SEQ); / avoid variable capture */ \
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	1762 for (_i = 0; _i < asdl_seq_LEN(seq); _i++) { \
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	1763 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, _i); \
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1764 if (!compiler_visit_ ## TYPE((C), elt)) \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1765 return 0; \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1766 } \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1767 }
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1768
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1769 #define VISIT_SEQ_IN_SCOPE(C, TYPE, SEQ) { \
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	1770 int _i; \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1771 asdl_seq seq = (SEQ); / avoid variable capture */ \
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	1772 for (_i = 0; _i < asdl_seq_LEN(seq); _i++) { \
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	1773 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, _i); \
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1774 if (!compiler_visit_ ## TYPE((C), elt)) { \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1775 compiler_exit_scope(c); \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1776 return 0; \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1777 } \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1778 } \
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1779 }
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1780
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1781 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1782 compiler_isdocstring(stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1783 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1784 if (s->kind != Expr_kind)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1785 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1786 return s->v.Expr.value->kind == Str_kind;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1787 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1788
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1789 /* Compile a sequence of statements, checking for a docstring. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1790
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1791 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1792 compiler_body(struct compiler c, asdl_seq stmts)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1793 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1794 int i = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1795 stmt_ty st;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1796
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1797 if (!asdl_seq_LEN(stmts))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1798 return 1;
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1799 st = (stmt_ty)asdl_seq_GET(stmts, 0);
41931 fec1296544ab Bug #1722484: remove docstrings again when running with -OO. Georg Brandl <georg@python.org> parents: 40997 diff changeset	1800 if (compiler_isdocstring(st) && Py_OptimizeFlag < 2) {
fec1296544ab Bug #1722484: remove docstrings again when running with -OO. Georg Brandl <georg@python.org> parents: 40997 diff changeset	1801 /* don't generate docstrings if -OO */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1802 i = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1803 VISIT(c, expr, st->v.Expr.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1804 if (!compiler_nameop(c, __doc__, Store))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1805 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1806 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1807 for (; i < asdl_seq_LEN(stmts); i++)
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1808 VISIT(c, stmt, (stmt_ty)asdl_seq_GET(stmts, i));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1809 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1810 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1811
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1812 static PyCodeObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1813 compiler_mod(struct compiler *c, mod_ty mod)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1814 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1815 PyCodeObject *co;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1816 int addNone = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1817 static PyObject *module;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1818 if (!module) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1819 module = PyString_FromString("<module>");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1820 if (!module)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1821 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1822 }
39040 ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	1823 /* Use 0 for firstlineno initially, will fixup in assemble(). */
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	1824 if (!compiler_enter_scope(c, module, mod, 0))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1825 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1826 switch (mod->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1827 case Module_kind:
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	1828 if (!compiler_body(c, mod->v.Module.body)) {
3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	1829 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1830 return 0;
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	1831 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1832 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1833 case Interactive_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1834 c->c_interactive = 1;
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	1835 VISIT_SEQ_IN_SCOPE(c, stmt,
72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	1836 mod->v.Interactive.body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1837 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1838 case Expression_kind:
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	1839 VISIT_IN_SCOPE(c, expr, mod->v.Expression.body);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1840 addNone = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1841 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1842 case Suite_kind:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1843 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1844 "suite should not be possible");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1845 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1846 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1847 PyErr_Format(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1848 "module kind %d should not be possible",
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1849 mod->kind);
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	1850 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1851 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1852 co = assemble(c, addNone);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1853 compiler_exit_scope(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1854 return co;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1855 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1856
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1857 /* The test for LOCAL must come before the test for FREE in order to
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1858 handle classes where name is both local and free. The local var is
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1859 a method and the free var is a free var referenced within a method.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1860 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1861
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1862 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1863 get_ref_type(struct compiler c, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1864 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1865 int scope = PyST_GetScope(c->u->u_ste, name);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1866 if (scope == 0) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1867 char buf[350];
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1868 PyOS_snprintf(buf, sizeof(buf),
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1869 "unknown scope for %.100s in %.100s(%s) in %s\n"
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1870 "symbols: %s\nlocals: %s\nglobals: %s\n",
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1871 PyString_AS_STRING(name),
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1872 PyString_AS_STRING(c->u->u_name),
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1873 PyObject_REPR(c->u->u_ste->ste_id),
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1874 c->c_filename,
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1875 PyObject_REPR(c->u->u_ste->ste_symbols),
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1876 PyObject_REPR(c->u->u_varnames),
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1877 PyObject_REPR(c->u->u_names)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1878 );
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1879 Py_FatalError(buf);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1880 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1881
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1882 return scope;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1883 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1884
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1885 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1886 compiler_lookup_arg(PyObject dict, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1887 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1888 PyObject k, v;
38406 8f7c7aeac3a5 Replace Py_BuildValue("OO") by PyTuple_Pack. Georg Brandl <georg@python.org> parents: 38084 diff changeset	1889 k = PyTuple_Pack(2, name, name->ob_type);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1890 if (k == NULL)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1891 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1892 v = PyDict_GetItem(dict, k);
35939 79374eb6db51 Fix a few more ref leaks. Backport candidate Neal Norwitz <nnorwitz@gmail.com> parents: 35895 diff changeset	1893 Py_DECREF(k);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1894 if (v == NULL)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1895 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1896 return PyInt_AS_LONG(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1897 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1898
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1899 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1900 compiler_make_closure(struct compiler c, PyCodeObject co, int args)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1901 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1902 int i, free = PyCode_GetNumFree(co);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1903 if (free == 0) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1904 ADDOP_O(c, LOAD_CONST, (PyObject*)co, consts);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1905 ADDOP_I(c, MAKE_FUNCTION, args);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1906 return 1;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1907 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1908 for (i = 0; i < free; ++i) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1909 /* Bypass com_addop_varname because it will generate
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1910 LOAD_DEREF but LOAD_CLOSURE is needed.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1911 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1912 PyObject *name = PyTuple_GET_ITEM(co->co_freevars, i);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1913 int arg, reftype;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1914
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1915 /* Special case: If a class contains a method with a
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1916 free variable that has the same name as a method,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1917 the name will be considered free and local in the
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1918 class. It should be handled by the closure, as
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1919 well as by the normal name loookup logic.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1920 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1921 reftype = get_ref_type(c, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1922 if (reftype == CELL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1923 arg = compiler_lookup_arg(c->u->u_cellvars, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1924 else /* (reftype == FREE) */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1925 arg = compiler_lookup_arg(c->u->u_freevars, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1926 if (arg == -1) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1927 printf("lookup %s in %s %d %d\n"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1928 "freevars of %s: %s\n",
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1929 PyObject_REPR(name),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1930 PyString_AS_STRING(c->u->u_name),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1931 reftype, arg,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1932 PyString_AS_STRING(co->co_name),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1933 PyObject_REPR(co->co_freevars));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1934 Py_FatalError("compiler_make_closure()");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1935 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1936 ADDOP_I(c, LOAD_CLOSURE, arg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1937 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1938 ADDOP_I(c, BUILD_TUPLE, free);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1939 ADDOP_O(c, LOAD_CONST, (PyObject*)co, consts);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1940 ADDOP_I(c, MAKE_CLOSURE, args);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1941 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1942 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1943
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1944 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1945 compiler_decorators(struct compiler c, asdl_seq decos)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1946 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1947 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1948
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1949 if (!decos)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1950 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1951
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1952 for (i = 0; i < asdl_seq_LEN(decos); i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1953 VISIT(c, expr, (expr_ty)asdl_seq_GET(decos, i));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1954 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1955 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1956 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1957
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1958 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1959 compiler_arguments(struct compiler *c, arguments_ty args)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1960 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1961 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1962 int n = asdl_seq_LEN(args->args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1963 /* Correctly handle nested argument lists */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1964 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	1965 expr_ty arg = (expr_ty)asdl_seq_GET(args->args, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1966 if (arg->kind == Tuple_kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1967 PyObject *id = PyString_FromFormat(".%d", i);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1968 if (id == NULL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1969 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1970 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1971 if (!compiler_nameop(c, id, Load)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1972 Py_DECREF(id);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1973 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1974 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1975 Py_DECREF(id);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1976 VISIT(c, expr, arg);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1977 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1978 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1979 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1980 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1981
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1982 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1983 compiler_function(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1984 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1985 PyCodeObject *co;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1986 PyObject *first_const = Py_None;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1987 arguments_ty args = s->v.FunctionDef.args;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1988 asdl_seq* decos = s->v.FunctionDef.decorators;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	1989 stmt_ty st;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1990 int i, n, docstring;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1991
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1992 assert(s->kind == FunctionDef_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1993
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1994 if (!compiler_decorators(c, decos))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1995 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1996 if (args->defaults)
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	1997 VISIT_SEQ(c, expr, args->defaults);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1998 if (!compiler_enter_scope(c, s->v.FunctionDef.name, (void *)s,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	1999 s->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2000 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2001
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	2002 st = (stmt_ty)asdl_seq_GET(s->v.FunctionDef.body, 0);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2003 docstring = compiler_isdocstring(st);
43403 692493771ae3 Fix #1169: remove docstrings in functions for -OO. Georg Brandl <georg@python.org> parents: 41931 diff changeset	2004 if (docstring && Py_OptimizeFlag < 2)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2005 first_const = st->v.Expr.value->v.Str.s;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2006 if (compiler_add_o(c, c->u->u_consts, first_const) < 0) {
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2007 compiler_exit_scope(c);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2008 return 0;
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2009 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2010
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2011 /* unpack nested arguments */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2012 compiler_arguments(c, args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2013
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2014 c->u->u_argcount = asdl_seq_LEN(args->args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2015 n = asdl_seq_LEN(s->v.FunctionDef.body);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2016 /* if there was a docstring, we need to skip the first statement */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2017 for (i = docstring; i < n; i++) {
39363 b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	2018 st = (stmt_ty)asdl_seq_GET(s->v.FunctionDef.body, i);
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	2019 VISIT_IN_SCOPE(c, stmt, st);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2020 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2021 co = assemble(c, 1);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2022 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2023 if (co == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2024 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2025
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2026 compiler_make_closure(c, co, asdl_seq_LEN(args->defaults));
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2027 Py_DECREF(co);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2028
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2029 for (i = 0; i < asdl_seq_LEN(decos); i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2030 ADDOP_I(c, CALL_FUNCTION, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2031 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2032
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2033 return compiler_nameop(c, s->v.FunctionDef.name, Store);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2034 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2035
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2036 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2037 compiler_class(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2038 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2039 int n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2040 PyCodeObject *co;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2041 PyObject *str;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2042 /* push class name on stack, needed by BUILD_CLASS */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2043 ADDOP_O(c, LOAD_CONST, s->v.ClassDef.name, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2044 /* push the tuple of base classes on the stack */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2045 n = asdl_seq_LEN(s->v.ClassDef.bases);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2046 if (n > 0)
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2047 VISIT_SEQ(c, expr, s->v.ClassDef.bases);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2048 ADDOP_I(c, BUILD_TUPLE, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2049 if (!compiler_enter_scope(c, s->v.ClassDef.name, (void *)s,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2050 s->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2051 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2052 c->u->u_private = s->v.ClassDef.name;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2053 Py_INCREF(c->u->u_private);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2054 str = PyString_InternFromString("__name__");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2055 if (!str \|\| !compiler_nameop(c, str, Load)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2056 Py_XDECREF(str);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2057 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2058 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2059 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2060
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2061 Py_DECREF(str);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2062 str = PyString_InternFromString("__module__");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2063 if (!str \|\| !compiler_nameop(c, str, Store)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2064 Py_XDECREF(str);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2065 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2066 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2067 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2068 Py_DECREF(str);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2069
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2070 if (!compiler_body(c, s->v.ClassDef.body)) {
3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2071 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2072 return 0;
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2073 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2074
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	2075 ADDOP_IN_SCOPE(c, LOAD_LOCALS);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	2076 ADDOP_IN_SCOPE(c, RETURN_VALUE);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2077 co = assemble(c, 1);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2078 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2079 if (co == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2080 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2081
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2082 compiler_make_closure(c, co, 0);
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2083 Py_DECREF(co);
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2084
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2085 ADDOP_I(c, CALL_FUNCTION, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2086 ADDOP(c, BUILD_CLASS);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2087 if (!compiler_nameop(c, s->v.ClassDef.name, Store))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2088 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2089 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2090 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2091
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2092 static int
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2093 compiler_ifexp(struct compiler *c, expr_ty e)
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2094 {
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2095 basicblock end, next;
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2096
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2097 assert(e->kind == IfExp_kind);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2098 end = compiler_new_block(c);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2099 if (end == NULL)
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2100 return 0;
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2101 next = compiler_new_block(c);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2102 if (next == NULL)
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2103 return 0;
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2104 VISIT(c, expr, e->v.IfExp.test);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2105 ADDOP_JREL(c, JUMP_IF_FALSE, next);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2106 ADDOP(c, POP_TOP);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2107 VISIT(c, expr, e->v.IfExp.body);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2108 ADDOP_JREL(c, JUMP_FORWARD, end);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2109 compiler_use_next_block(c, next);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2110 ADDOP(c, POP_TOP);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2111 VISIT(c, expr, e->v.IfExp.orelse);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2112 compiler_use_next_block(c, end);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2113 return 1;
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2114 }
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2115
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	2116 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2117 compiler_lambda(struct compiler *c, expr_ty e)
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	2118 {
5373 5880384d7c71 Quickly renamed the remaining files -- this directory is done. Guido van Rossum <guido@python.org> parents: 5287 diff changeset	2119 PyCodeObject *co;
35881 29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	2120 static identifier name;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2121 arguments_ty args = e->v.Lambda.args;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2122 assert(e->kind == Lambda_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2123
35881 29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	2124 if (!name) {
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	2125 name = PyString_InternFromString("<lambda>");
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	2126 if (!name)
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	2127 return 0;
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	2128 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2129
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2130 if (args->defaults)
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2131 VISIT_SEQ(c, expr, args->defaults);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2132 if (!compiler_enter_scope(c, name, (void *)e, e->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2133 return 0;
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2134
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2135 /* unpack nested arguments */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2136 compiler_arguments(c, args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2137
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2138 c->u->u_argcount = asdl_seq_LEN(args->args);
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	2139 VISIT_IN_SCOPE(c, expr, e->v.Lambda.body);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35860 diff changeset	2140 ADDOP_IN_SCOPE(c, RETURN_VALUE);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2141 co = assemble(c, 1);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	2142 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2143 if (co == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2144 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2145
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2146 compiler_make_closure(c, co, asdl_seq_LEN(args->defaults));
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2147 Py_DECREF(co);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2148
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2149 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2150 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2151
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2152 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2153 compiler_print(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2154 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2155 int i, n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2156 bool dest;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2157
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2158 assert(s->kind == Print_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2159 n = asdl_seq_LEN(s->v.Print.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2160 dest = false;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2161 if (s->v.Print.dest) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2162 VISIT(c, expr, s->v.Print.dest);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2163 dest = true;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2164 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2165 for (i = 0; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2166 expr_ty e = (expr_ty)asdl_seq_GET(s->v.Print.values, i);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2167 if (dest) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2168 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2169 VISIT(c, expr, e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2170 ADDOP(c, ROT_TWO);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2171 ADDOP(c, PRINT_ITEM_TO);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2172 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2173 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2174 VISIT(c, expr, e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2175 ADDOP(c, PRINT_ITEM);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2176 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2177 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2178 if (s->v.Print.nl) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2179 if (dest)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2180 ADDOP(c, PRINT_NEWLINE_TO)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2181 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2182 ADDOP(c, PRINT_NEWLINE)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2183 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2184 else if (dest)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2185 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2186 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2187 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2188
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2189 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2190 compiler_if(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2191 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2192 basicblock end, next;
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2193 int constant;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2194 assert(s->kind == If_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2195 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2196 if (end == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2197 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2198 next = compiler_new_block(c);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2199 if (next == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2200 return 0;
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2201
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2202 constant = expr_constant(s->v.If.test);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2203 /* constant = 0: "if 0"
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2204 * constant = 1: "if 1", "if 2", ...
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2205 * constant = -1: rest */
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2206 if (constant == 0) {
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2207 if (s->v.If.orelse)
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2208 VISIT_SEQ(c, stmt, s->v.If.orelse);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2209 } else if (constant == 1) {
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2210 VISIT_SEQ(c, stmt, s->v.If.body);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2211 } else {
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2212 VISIT(c, expr, s->v.If.test);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2213 ADDOP_JREL(c, JUMP_IF_FALSE, next);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2214 ADDOP(c, POP_TOP);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2215 VISIT_SEQ(c, stmt, s->v.If.body);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2216 ADDOP_JREL(c, JUMP_FORWARD, end);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2217 compiler_use_next_block(c, next);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2218 ADDOP(c, POP_TOP);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2219 if (s->v.If.orelse)
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2220 VISIT_SEQ(c, stmt, s->v.If.orelse);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	2221 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2222 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2223 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2224 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2225
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2226 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2227 compiler_for(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2228 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2229 basicblock start, cleanup, *end;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2230
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2231 start = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2232 cleanup = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2233 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2234 if (start == NULL \|\| end == NULL \|\| cleanup == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2235 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2236 ADDOP_JREL(c, SETUP_LOOP, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2237 if (!compiler_push_fblock(c, LOOP, start))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2238 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2239 VISIT(c, expr, s->v.For.iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2240 ADDOP(c, GET_ITER);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2241 compiler_use_next_block(c, start);
45155 86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2242 /* for expressions must be traced on each iteration,
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2243 so we need to set an extra line number. */
39363 b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	2244 c->u->u_lineno_set = false;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2245 ADDOP_JREL(c, FOR_ITER, cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2246 VISIT(c, expr, s->v.For.target);
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2247 VISIT_SEQ(c, stmt, s->v.For.body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2248 ADDOP_JABS(c, JUMP_ABSOLUTE, start);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2249 compiler_use_next_block(c, cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2250 ADDOP(c, POP_BLOCK);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2251 compiler_pop_fblock(c, LOOP, start);
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2252 VISIT_SEQ(c, stmt, s->v.For.orelse);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2253 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2254 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2255 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2256
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2257 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2258 compiler_while(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2259 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2260 basicblock loop, orelse, end, anchor = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2261 int constant = expr_constant(s->v.While.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2262
44931 742a264cce4f #1920: when considering a block starting by "while 0", the compiler optimized the Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44865 diff changeset	2263 if (constant == 0) {
742a264cce4f #1920: when considering a block starting by "while 0", the compiler optimized the Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44865 diff changeset	2264 if (s->v.While.orelse)
742a264cce4f #1920: when considering a block starting by "while 0", the compiler optimized the Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44865 diff changeset	2265 VISIT_SEQ(c, stmt, s->v.While.orelse);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2266 return 1;
44931 742a264cce4f #1920: when considering a block starting by "while 0", the compiler optimized the Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44865 diff changeset	2267 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2268 loop = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2269 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2270 if (constant == -1) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2271 anchor = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2272 if (anchor == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2273 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2274 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2275 if (loop == NULL \|\| end == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2276 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2277 if (s->v.While.orelse) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2278 orelse = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2279 if (orelse == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2280 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2281 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2282 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2283 orelse = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2284
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2285 ADDOP_JREL(c, SETUP_LOOP, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2286 compiler_use_next_block(c, loop);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2287 if (!compiler_push_fblock(c, LOOP, loop))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2288 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2289 if (constant == -1) {
45155 86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2290 /* while expressions must be traced on each iteration,
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2291 so we need to set an extra line number. */
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2292 c->u->u_lineno_set = false;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2293 VISIT(c, expr, s->v.While.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2294 ADDOP_JREL(c, JUMP_IF_FALSE, anchor);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2295 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2296 }
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2297 VISIT_SEQ(c, stmt, s->v.While.body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2298 ADDOP_JABS(c, JUMP_ABSOLUTE, loop);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2299
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2300 /* XXX should the two POP instructions be in a separate block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2301 if there is no else clause ?
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2302 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2303
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2304 if (constant == -1) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2305 compiler_use_next_block(c, anchor);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2306 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2307 ADDOP(c, POP_BLOCK);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2308 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2309 compiler_pop_fblock(c, LOOP, loop);
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	2310 if (orelse != NULL) /* what if orelse is just pass? */
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2311 VISIT_SEQ(c, stmt, s->v.While.orelse);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2312 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2313
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2314 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2315 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2316
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2317 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2318 compiler_continue(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2319 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2320 static const char LOOP_ERROR_MSG[] = "'continue' not properly in loop";
40042 ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2321 static const char IN_FINALLY_ERROR_MSG[] =
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2322 "'continue' not supported inside 'finally' clause";
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	2323 int i;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2324
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2325 if (!c->u->u_nfblocks)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2326 return compiler_error(c, LOOP_ERROR_MSG);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2327 i = c->u->u_nfblocks - 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2328 switch (c->u->u_fblock[i].fb_type) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2329 case LOOP:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2330 ADDOP_JABS(c, JUMP_ABSOLUTE, c->u->u_fblock[i].fb_block);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2331 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2332 case EXCEPT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2333 case FINALLY_TRY:
40042 ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2334 while (--i >= 0 && c->u->u_fblock[i].fb_type != LOOP) {
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2335 /* Prevent try: ... finally:
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2336 try: continue ... or
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2337 try: ... except: continue */
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2338 if (c->u->u_fblock[i].fb_type == FINALLY_END)
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2339 return compiler_error(c, IN_FINALLY_ERROR_MSG);
ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2340 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2341 if (i == -1)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2342 return compiler_error(c, LOOP_ERROR_MSG);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2343 ADDOP_JABS(c, CONTINUE_LOOP, c->u->u_fblock[i].fb_block);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2344 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2345 case FINALLY_END:
40042 ed88d6b7c1f9 Patch #1542451: fix crash with continue in nested try/finally Georg Brandl <georg@python.org> parents: 39446 diff changeset	2346 return compiler_error(c, IN_FINALLY_ERROR_MSG);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2347 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2348
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2349 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2350 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2351
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2352 /* Code generated for "try: <body> finally: <finalbody>" is as follows:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2353
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2354 SETUP_FINALLY L
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2355 <code for body>
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2356 POP_BLOCK
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2357 LOAD_CONST <None>
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2358 L: <code for finalbody>
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2359 END_FINALLY
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2360
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2361 The special instructions use the block stack. Each block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2362 stack entry contains the instruction that created it (here
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2363 SETUP_FINALLY), the level of the value stack at the time the
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2364 block stack entry was created, and a label (here L).
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2365
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2366 SETUP_FINALLY:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2367 Pushes the current value stack level and the label
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2368 onto the block stack.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2369 POP_BLOCK:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2370 Pops en entry from the block stack, and pops the value
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2371 stack until its level is the same as indicated on the
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2372 block stack. (The label is ignored.)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2373 END_FINALLY:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2374 Pops a variable number of entries from the value stack
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2375 and re-raises the exception they specify. The number of
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2376 entries popped depends on the (pseudo) exception type.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2377
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2378 The block stack is unwound when an exception is raised:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2379 when a SETUP_FINALLY entry is found, the exception is pushed
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2380 onto the value stack (and the exception condition is cleared),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2381 and the interpreter jumps to the label gotten from the block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2382 stack.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2383 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2384
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2385 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2386 compiler_try_finally(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2387 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2388 basicblock body, end;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2389 body = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2390 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2391 if (body == NULL \|\| end == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2392 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2393
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2394 ADDOP_JREL(c, SETUP_FINALLY, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2395 compiler_use_next_block(c, body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2396 if (!compiler_push_fblock(c, FINALLY_TRY, body))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2397 return 0;
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2398 VISIT_SEQ(c, stmt, s->v.TryFinally.body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2399 ADDOP(c, POP_BLOCK);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2400 compiler_pop_fblock(c, FINALLY_TRY, body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2401
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2402 ADDOP_O(c, LOAD_CONST, Py_None, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2403 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2404 if (!compiler_push_fblock(c, FINALLY_END, end))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2405 return 0;
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2406 VISIT_SEQ(c, stmt, s->v.TryFinally.finalbody);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2407 ADDOP(c, END_FINALLY);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2408 compiler_pop_fblock(c, FINALLY_END, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2409
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2410 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2411 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2412
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2413 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2414 Code generated for "try: S except E1, V1: S1 except E2, V2: S2 ...":
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2415 (The contents of the value stack is shown in [], with the top
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2416 at the right; 'tb' is trace-back info, 'val' the exception's
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2417 associated value, and 'exc' the exception.)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2418
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2419 Value stack Label Instruction Argument
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2420 [] SETUP_EXCEPT L1
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2421 [] <code for S>
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2422 [] POP_BLOCK
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2423 [] JUMP_FORWARD L0
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2424
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2425 [tb, val, exc] L1: DUP )
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2426 [tb, val, exc, exc] <evaluate E1> )
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2427 [tb, val, exc, exc, E1] COMPARE_OP EXC_MATCH ) only if E1
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2428 [tb, val, exc, 1-or-0] JUMP_IF_FALSE L2 )
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2429 [tb, val, exc, 1] POP )
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2430 [tb, val, exc] POP
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2431 [tb, val] <assign to V1> (or POP if no V1)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2432 [tb] POP
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2433 [] <code for S1>
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2434 JUMP_FORWARD L0
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2435
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2436 [tb, val, exc, 0] L2: POP
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2437 [tb, val, exc] DUP
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2438 .............................etc.......................
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2439
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2440 [tb, val, exc, 0] Ln+1: POP
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2441 [tb, val, exc] END_FINALLY # re-raise exception
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2442
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2443 [] L0: <next statement>
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2444
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2445 Of course, parts are not generated if Vi or Ei is not present.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2446 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2447 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2448 compiler_try_except(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2449 {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2450 basicblock body, orelse, except, end;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2451 int i, n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2452
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2453 body = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2454 except = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2455 orelse = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2456 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2457 if (body == NULL \|\| except == NULL \|\| orelse == NULL \|\| end == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2458 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2459 ADDOP_JREL(c, SETUP_EXCEPT, except);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2460 compiler_use_next_block(c, body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2461 if (!compiler_push_fblock(c, EXCEPT, body))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2462 return 0;
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2463 VISIT_SEQ(c, stmt, s->v.TryExcept.body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2464 ADDOP(c, POP_BLOCK);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2465 compiler_pop_fblock(c, EXCEPT, body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2466 ADDOP_JREL(c, JUMP_FORWARD, orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2467 n = asdl_seq_LEN(s->v.TryExcept.handlers);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2468 compiler_use_next_block(c, except);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2469 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	2470 excepthandler_ty handler = (excepthandler_ty)asdl_seq_GET(
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2471 s->v.TryExcept.handlers, i);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2472 if (!handler->type && i < n-1)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2473 return compiler_error(c, "default 'except:' must be last");
45155 86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2474 c->u->u_lineno_set = false;
86602b603462 backport of r60575 (issue #1750076): Debugger did not step on every iteration of a while statement. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44931 diff changeset	2475 c->u->u_lineno = handler->lineno;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2476 except = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2477 if (except == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2478 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2479 if (handler->type) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2480 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2481 VISIT(c, expr, handler->type);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2482 ADDOP_I(c, COMPARE_OP, PyCmp_EXC_MATCH);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2483 ADDOP_JREL(c, JUMP_IF_FALSE, except);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2484 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2485 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2486 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2487 if (handler->name) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2488 VISIT(c, expr, handler->name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2489 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2490 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2491 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2492 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2493 ADDOP(c, POP_TOP);
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2494 VISIT_SEQ(c, stmt, handler->body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2495 ADDOP_JREL(c, JUMP_FORWARD, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2496 compiler_use_next_block(c, except);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2497 if (handler->type)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2498 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2499 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2500 ADDOP(c, END_FINALLY);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2501 compiler_use_next_block(c, orelse);
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2502 VISIT_SEQ(c, stmt, s->v.TryExcept.orelse);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2503 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2504 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2505 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2506
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2507 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2508 compiler_import_as(struct compiler *c, identifier name, identifier asname)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2509 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2510 /* The IMPORT_NAME opcode was already generated. This function
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2511 merely needs to bind the result to a name.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2512
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2513 If there is a dot in name, we need to split it and emit a
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2514 LOAD_ATTR for each name.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2515 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2516 const char *src = PyString_AS_STRING(name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2517 const char *dot = strchr(src, '.');
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2518 if (dot) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2519 /* Consume the base module name to get the first attribute */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2520 src = dot + 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2521 while (dot) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2522 /* NB src is only defined when dot != NULL */
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	2523 PyObject *attr;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2524 dot = strchr(src, '.');
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	2525 attr = PyString_FromStringAndSize(src,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2526 dot ? dot - src : strlen(src));
35895 fe4c627b2096 Fix a few more memory leaks Neal Norwitz <nnorwitz@gmail.com> parents: 35893 diff changeset	2527 if (!attr)
fe4c627b2096 Fix a few more memory leaks Neal Norwitz <nnorwitz@gmail.com> parents: 35893 diff changeset	2528 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2529 ADDOP_O(c, LOAD_ATTR, attr, names);
35895 fe4c627b2096 Fix a few more memory leaks Neal Norwitz <nnorwitz@gmail.com> parents: 35893 diff changeset	2530 Py_DECREF(attr);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2531 src = dot + 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2532 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2533 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2534 return compiler_nameop(c, asname, Store);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2535 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2536
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2537 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2538 compiler_import(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2539 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2540 /* The Import node stores a module name like a.b.c as a single
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2541 string. This is convenient for all cases except
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2542 import a.b.c as d
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2543 where we need to parse that string to extract the individual
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2544 module names.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2545 XXX Perhaps change the representation to make this case simpler?
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2546 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2547 int i, n = asdl_seq_LEN(s->v.Import.names);
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2548
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2549 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	2550 alias_ty alias = (alias_ty)asdl_seq_GET(s->v.Import.names, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2551 int r;
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2552 PyObject *level;
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2553
37418 cea54c9d921d Don't abbreviate ABS, use long name ABSOLUTE. Neal Norwitz <nnorwitz@gmail.com> parents: 37390 diff changeset	2554 if (c->c_flags && (c->c_flags->cf_flags & CO_FUTURE_ABSOLUTE_IMPORT))
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2555 level = PyInt_FromLong(0);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2556 else
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2557 level = PyInt_FromLong(-1);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2558
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2559 if (level == NULL)
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2560 return 0;
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2561
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2562 ADDOP_O(c, LOAD_CONST, level, consts);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2563 Py_DECREF(level);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2564 ADDOP_O(c, LOAD_CONST, Py_None, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2565 ADDOP_NAME(c, IMPORT_NAME, alias->name, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2566
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2567 if (alias->asname) {
35772 f64fb284ed15 Don't stop generating code for import statements after the first "import as" Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35767 diff changeset	2568 r = compiler_import_as(c, alias->name, alias->asname);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2569 if (!r)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2570 return r;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2571 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2572 else {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2573 identifier tmp = alias->name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2574 const char *base = PyString_AS_STRING(alias->name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2575 char *dot = strchr(base, '.');
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2576 if (dot)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2577 tmp = PyString_FromStringAndSize(base,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2578 dot - base);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2579 r = compiler_nameop(c, tmp, Store);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2580 if (dot) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2581 Py_DECREF(tmp);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2582 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2583 if (!r)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2584 return r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2585 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2586 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2587 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2588 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2589
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2590 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2591 compiler_from_import(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2592 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2593 int i, n = asdl_seq_LEN(s->v.ImportFrom.names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2594
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2595 PyObject *names = PyTuple_New(n);
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2596 PyObject *level;
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2597
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2598 if (!names)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2599 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2600
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2601 if (s->v.ImportFrom.level == 0 && c->c_flags &&
37418 cea54c9d921d Don't abbreviate ABS, use long name ABSOLUTE. Neal Norwitz <nnorwitz@gmail.com> parents: 37390 diff changeset	2602 !(c->c_flags->cf_flags & CO_FUTURE_ABSOLUTE_IMPORT))
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2603 level = PyInt_FromLong(-1);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2604 else
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2605 level = PyInt_FromLong(s->v.ImportFrom.level);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2606
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2607 if (!level) {
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2608 Py_DECREF(names);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2609 return 0;
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2610 }
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2611
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2612 /* build up the names */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2613 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	2614 alias_ty alias = (alias_ty)asdl_seq_GET(s->v.ImportFrom.names, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2615 Py_INCREF(alias->name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2616 PyTuple_SET_ITEM(names, i, alias->name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2617 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2618
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2619 if (s->lineno > c->c_future->ff_lineno) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2620 if (!strcmp(PyString_AS_STRING(s->v.ImportFrom.module),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2621 "__future__")) {
36804 c552f2275782 Fix refleak if from __future__ import was not first Neal Norwitz <nnorwitz@gmail.com> parents: 36797 diff changeset	2622 Py_DECREF(level);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2623 Py_DECREF(names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2624 return compiler_error(c,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2625 "from __future__ imports must occur "
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2626 "at the beginning of the file");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2627
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2628 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2629 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2630
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2631 ADDOP_O(c, LOAD_CONST, level, consts);
5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36697 diff changeset	2632 Py_DECREF(level);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2633 ADDOP_O(c, LOAD_CONST, names, consts);
35939 79374eb6db51 Fix a few more ref leaks. Backport candidate Neal Norwitz <nnorwitz@gmail.com> parents: 35895 diff changeset	2634 Py_DECREF(names);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2635 ADDOP_NAME(c, IMPORT_NAME, s->v.ImportFrom.module, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2636 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	2637 alias_ty alias = (alias_ty)asdl_seq_GET(s->v.ImportFrom.names, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2638 identifier store_name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2639
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2640 if (i == 0 && PyString_AS_STRING(alias->name) == '') {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2641 assert(n == 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2642 ADDOP(c, IMPORT_STAR);
35993 a29c89b4e8c6 Simplify logic for handling import * Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	2643 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2644 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2645
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2646 ADDOP_NAME(c, IMPORT_FROM, alias->name, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2647 store_name = alias->name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2648 if (alias->asname)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2649 store_name = alias->asname;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2650
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2651 if (!compiler_nameop(c, store_name, Store)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2652 Py_DECREF(names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2653 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2654 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2655 }
35993 a29c89b4e8c6 Simplify logic for handling import * Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	2656 /* remove imported module */
a29c89b4e8c6 Simplify logic for handling import * Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	2657 ADDOP(c, POP_TOP);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2658 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2659 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2660
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2661 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2662 compiler_assert(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2663 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2664 static PyObject *assertion_error = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2665 basicblock *end;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2666
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2667 if (Py_OptimizeFlag)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2668 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2669 if (assertion_error == NULL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2670 assertion_error = PyString_FromString("AssertionError");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2671 if (assertion_error == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2672 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2673 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2674 VISIT(c, expr, s->v.Assert.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2675 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2676 if (end == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2677 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2678 ADDOP_JREL(c, JUMP_IF_TRUE, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2679 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2680 ADDOP_O(c, LOAD_GLOBAL, assertion_error, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2681 if (s->v.Assert.msg) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2682 VISIT(c, expr, s->v.Assert.msg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2683 ADDOP_I(c, RAISE_VARARGS, 2);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2684 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2685 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2686 ADDOP_I(c, RAISE_VARARGS, 1);
9293 0a67db47e1d0 Changes to support other object types besides strings Guido van Rossum <guido@python.org> parents: 9215 diff changeset	2687 }
36081 19d96c2d7df5 Fix Armin's bug 1333982. He found it, he didn't created it :-) Neal Norwitz <nnorwitz@gmail.com> parents: 36079 diff changeset	2688 compiler_use_next_block(c, end);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2689 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2690 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2691 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2692
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2693 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2694 compiler_visit_stmt(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2695 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2696 int i, n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2697
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	2698 /* Always assign a lineno to the next instruction for a stmt. */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2699 c->u->u_lineno = s->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2700 c->u->u_lineno_set = false;
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	2701
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2702 switch (s->kind) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2703 case FunctionDef_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2704 return compiler_function(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2705 case ClassDef_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2706 return compiler_class(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2707 case Return_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2708 if (c->u->u_ste->ste_type != FunctionBlock)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2709 return compiler_error(c, "'return' outside function");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2710 if (s->v.Return.value) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2711 VISIT(c, expr, s->v.Return.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2712 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2713 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2714 ADDOP_O(c, LOAD_CONST, Py_None, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2715 ADDOP(c, RETURN_VALUE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2716 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2717 case Delete_kind:
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	2718 VISIT_SEQ(c, expr, s->v.Delete.targets)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2719 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2720 case Assign_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2721 n = asdl_seq_LEN(s->v.Assign.targets);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2722 VISIT(c, expr, s->v.Assign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2723 for (i = 0; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2724 if (i < n - 1)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2725 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2726 VISIT(c, expr,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2727 (expr_ty)asdl_seq_GET(s->v.Assign.targets, i));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2728 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2729 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2730 case AugAssign_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2731 return compiler_augassign(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2732 case Print_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2733 return compiler_print(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2734 case For_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2735 return compiler_for(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2736 case While_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2737 return compiler_while(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2738 case If_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2739 return compiler_if(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2740 case Raise_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2741 n = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2742 if (s->v.Raise.type) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2743 VISIT(c, expr, s->v.Raise.type);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2744 n++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2745 if (s->v.Raise.inst) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2746 VISIT(c, expr, s->v.Raise.inst);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2747 n++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2748 if (s->v.Raise.tback) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2749 VISIT(c, expr, s->v.Raise.tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2750 n++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2751 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2752 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2753 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2754 ADDOP_I(c, RAISE_VARARGS, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2755 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2756 case TryExcept_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2757 return compiler_try_except(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2758 case TryFinally_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2759 return compiler_try_finally(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2760 case Assert_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2761 return compiler_assert(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2762 case Import_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2763 return compiler_import(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2764 case ImportFrom_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2765 return compiler_from_import(c, s);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2766 case Exec_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2767 VISIT(c, expr, s->v.Exec.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2768 if (s->v.Exec.globals) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2769 VISIT(c, expr, s->v.Exec.globals);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2770 if (s->v.Exec.locals) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2771 VISIT(c, expr, s->v.Exec.locals);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2772 } else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2773 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2774 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2775 } else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2776 ADDOP_O(c, LOAD_CONST, Py_None, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2777 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2778 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2779 ADDOP(c, EXEC_STMT);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2780 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2781 case Global_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2782 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2783 case Expr_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2784 if (c->c_interactive && c->c_nestlevel <= 1) {
39364 8ef3f8cf90e1 Bug #1333982: string/number constants were inappropriately stored Neal Norwitz <nnorwitz@gmail.com> parents: 39363 diff changeset	2785 VISIT(c, expr, s->v.Expr.value);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2786 ADDOP(c, PRINT_EXPR);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2787 }
39364 8ef3f8cf90e1 Bug #1333982: string/number constants were inappropriately stored Neal Norwitz <nnorwitz@gmail.com> parents: 39363 diff changeset	2788 else if (s->v.Expr.value->kind != Str_kind &&
8ef3f8cf90e1 Bug #1333982: string/number constants were inappropriately stored Neal Norwitz <nnorwitz@gmail.com> parents: 39363 diff changeset	2789 s->v.Expr.value->kind != Num_kind) {
8ef3f8cf90e1 Bug #1333982: string/number constants were inappropriately stored Neal Norwitz <nnorwitz@gmail.com> parents: 39363 diff changeset	2790 VISIT(c, expr, s->v.Expr.value);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2791 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2792 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2793 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2794 case Pass_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2795 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2796 case Break_kind:
40044 9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	2797 if (!compiler_in_loop(c))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2798 return compiler_error(c, "'break' outside loop");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2799 ADDOP(c, BREAK_LOOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2800 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2801 case Continue_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2802 return compiler_continue(c);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2803 case With_kind:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2804 return compiler_with(c, s);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2805 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2806 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2807 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2808
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2809 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2810 unaryop(unaryop_ty op)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2811 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2812 switch (op) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2813 case Invert:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2814 return UNARY_INVERT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2815 case Not:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2816 return UNARY_NOT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2817 case UAdd:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2818 return UNARY_POSITIVE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2819 case USub:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2820 return UNARY_NEGATIVE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2821 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2822 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2823 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2824
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2825 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2826 binop(struct compiler *c, operator_ty op)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2827 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2828 switch (op) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2829 case Add:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2830 return BINARY_ADD;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2831 case Sub:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2832 return BINARY_SUBTRACT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2833 case Mult:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2834 return BINARY_MULTIPLY;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2835 case Div:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2836 if (c->c_flags && c->c_flags->cf_flags & CO_FUTURE_DIVISION)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2837 return BINARY_TRUE_DIVIDE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2838 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2839 return BINARY_DIVIDE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2840 case Mod:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2841 return BINARY_MODULO;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2842 case Pow:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2843 return BINARY_POWER;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2844 case LShift:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2845 return BINARY_LSHIFT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2846 case RShift:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2847 return BINARY_RSHIFT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2848 case BitOr:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2849 return BINARY_OR;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2850 case BitXor:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2851 return BINARY_XOR;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2852 case BitAnd:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2853 return BINARY_AND;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2854 case FloorDiv:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2855 return BINARY_FLOOR_DIVIDE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2856 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2857 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2858 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2859
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2860 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2861 cmpop(cmpop_ty op)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2862 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2863 switch (op) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2864 case Eq:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2865 return PyCmp_EQ;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2866 case NotEq:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2867 return PyCmp_NE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2868 case Lt:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2869 return PyCmp_LT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2870 case LtE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2871 return PyCmp_LE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2872 case Gt:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2873 return PyCmp_GT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2874 case GtE:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2875 return PyCmp_GE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2876 case Is:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2877 return PyCmp_IS;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2878 case IsNot:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2879 return PyCmp_IS_NOT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2880 case In:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2881 return PyCmp_IN;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2882 case NotIn:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2883 return PyCmp_NOT_IN;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2884 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2885 return PyCmp_BAD;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2886 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2887
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2888 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2889 inplace_binop(struct compiler *c, operator_ty op)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2890 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2891 switch (op) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2892 case Add:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2893 return INPLACE_ADD;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2894 case Sub:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2895 return INPLACE_SUBTRACT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2896 case Mult:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2897 return INPLACE_MULTIPLY;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2898 case Div:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2899 if (c->c_flags && c->c_flags->cf_flags & CO_FUTURE_DIVISION)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2900 return INPLACE_TRUE_DIVIDE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2901 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2902 return INPLACE_DIVIDE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2903 case Mod:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2904 return INPLACE_MODULO;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2905 case Pow:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2906 return INPLACE_POWER;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2907 case LShift:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2908 return INPLACE_LSHIFT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2909 case RShift:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2910 return INPLACE_RSHIFT;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2911 case BitOr:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2912 return INPLACE_OR;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2913 case BitXor:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2914 return INPLACE_XOR;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2915 case BitAnd:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2916 return INPLACE_AND;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2917 case FloorDiv:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2918 return INPLACE_FLOOR_DIVIDE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2919 }
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2920 PyErr_Format(PyExc_SystemError,
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	2921 "inplace binary op %d should not be possible", op);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2922 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2923 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2924
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2925 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2926 compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2927 {
35781 31d36dd5959c Remove unnecessary local variable. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35779 diff changeset	2928 int op, scope, arg;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2929 enum { OP_FAST, OP_GLOBAL, OP_DEREF, OP_NAME } optype;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2930
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2931 PyObject *dict = c->u->u_names;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2932 PyObject *mangled;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2933 /* XXX AugStore isn't used anywhere! */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2934
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2935 /* First check for assignment to __debug__. Param? */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2936 if ((ctx == Store \|\| ctx == AugStore \|\| ctx == Del)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2937 && !strcmp(PyString_AS_STRING(name), "__debug__")) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2938 return compiler_error(c, "can not assign to __debug__");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2939 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2940
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2941 mangled = _Py_Mangle(c->u->u_private, name);
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2942 if (!mangled)
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2943 return 0;
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2944
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2945 op = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2946 optype = OP_NAME;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2947 scope = PyST_GetScope(c->u->u_ste, mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2948 switch (scope) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2949 case FREE:
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2950 dict = c->u->u_freevars;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2951 optype = OP_DEREF;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2952 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2953 case CELL:
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	2954 dict = c->u->u_cellvars;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2955 optype = OP_DEREF;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2956 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2957 case LOCAL:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2958 if (c->u->u_ste->ste_type == FunctionBlock)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2959 optype = OP_FAST;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2960 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2961 case GLOBAL_IMPLICIT:
35773 0aef351223da Fix arigo's funky LOAD_NAME bug: implicit globals inside classes have Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35772 diff changeset	2962 if (c->u->u_ste->ste_type == FunctionBlock &&
0aef351223da Fix arigo's funky LOAD_NAME bug: implicit globals inside classes have Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35772 diff changeset	2963 !c->u->u_ste->ste_unoptimized)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2964 optype = OP_GLOBAL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2965 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2966 case GLOBAL_EXPLICIT:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2967 optype = OP_GLOBAL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2968 break;
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	2969 default:
8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	2970 /* scope can be 0 */
8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	2971 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2972 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2973
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2974 /* XXX Leave assert here, but handle __doc__ and the like better */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2975 assert(scope \|\| PyString_AS_STRING(name)[0] == '_');
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2976
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2977 switch (optype) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2978 case OP_DEREF:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2979 switch (ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2980 case Load: op = LOAD_DEREF; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2981 case Store: op = STORE_DEREF; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2982 case AugLoad:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2983 case AugStore:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2984 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2985 case Del:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2986 PyErr_Format(PyExc_SyntaxError,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2987 "can not delete variable '%s' referenced "
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2988 "in nested scope",
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2989 PyString_AS_STRING(name));
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	2990 Py_DECREF(mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2991 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2992 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	2993 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2994 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2995 "param invalid for deref variable");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	2996 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2997 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2998 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	2999 case OP_FAST:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3000 switch (ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3001 case Load: op = LOAD_FAST; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3002 case Store: op = STORE_FAST; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3003 case Del: op = DELETE_FAST; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3004 case AugLoad:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3005 case AugStore:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3006 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3007 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3008 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3009 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3010 "param invalid for local variable");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3011 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3012 }
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	3013 ADDOP_O(c, op, mangled, varnames);
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	3014 Py_DECREF(mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3015 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3016 case OP_GLOBAL:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3017 switch (ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3018 case Load: op = LOAD_GLOBAL; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3019 case Store: op = STORE_GLOBAL; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3020 case Del: op = DELETE_GLOBAL; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3021 case AugLoad:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3022 case AugStore:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3023 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3024 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3025 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3026 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3027 "param invalid for global variable");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3028 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3029 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3030 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3031 case OP_NAME:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3032 switch (ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3033 case Load: op = LOAD_NAME; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3034 case Store: op = STORE_NAME; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3035 case Del: op = DELETE_NAME; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3036 case AugLoad:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3037 case AugStore:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3038 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3039 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3040 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3041 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3042 "param invalid for name variable");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3043 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3044 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3045 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3046 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3047
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3048 assert(op);
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	3049 arg = compiler_add_o(c, dict, mangled);
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3050 Py_DECREF(mangled);
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	3051 if (arg < 0)
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35778 diff changeset	3052 return 0;
35781 31d36dd5959c Remove unnecessary local variable. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35779 diff changeset	3053 return compiler_addop_i(c, op, arg);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3054 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3055
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3056 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3057 compiler_boolop(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3058 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3059 basicblock *end;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3060 int jumpi, i, n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3061 asdl_seq *s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3062
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3063 assert(e->kind == BoolOp_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3064 if (e->v.BoolOp.op == And)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3065 jumpi = JUMP_IF_FALSE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3066 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3067 jumpi = JUMP_IF_TRUE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3068 end = compiler_new_block(c);
36173 ade46371f04b Adjust usage of compiler_use_new_block to its return type. Martin v. Löwis <martin@v.loewis.de> parents: 36084 diff changeset	3069 if (end == NULL)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3070 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3071 s = e->v.BoolOp.values;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3072 n = asdl_seq_LEN(s) - 1;
39317 d0e6170704de Add some asserts and update comments Neal Norwitz <nnorwitz@gmail.com> parents: 39140 diff changeset	3073 assert(n >= 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3074 for (i = 0; i < n; ++i) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3075 VISIT(c, expr, (expr_ty)asdl_seq_GET(s, i));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3076 ADDOP_JREL(c, jumpi, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3077 ADDOP(c, POP_TOP)
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	3078 }
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3079 VISIT(c, expr, (expr_ty)asdl_seq_GET(s, n));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3080 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3081 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3082 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3083
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3084 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3085 compiler_list(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3086 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3087 int n = asdl_seq_LEN(e->v.List.elts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3088 if (e->v.List.ctx == Store) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3089 ADDOP_I(c, UNPACK_SEQUENCE, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3090 }
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	3091 VISIT_SEQ(c, expr, e->v.List.elts);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3092 if (e->v.List.ctx == Load) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3093 ADDOP_I(c, BUILD_LIST, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3094 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3095 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3096 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3097
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3098 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3099 compiler_tuple(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3100 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3101 int n = asdl_seq_LEN(e->v.Tuple.elts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3102 if (e->v.Tuple.ctx == Store) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3103 ADDOP_I(c, UNPACK_SEQUENCE, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3104 }
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	3105 VISIT_SEQ(c, expr, e->v.Tuple.elts);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3106 if (e->v.Tuple.ctx == Load) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3107 ADDOP_I(c, BUILD_TUPLE, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3108 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3109 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3110 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3111
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3112 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3113 compiler_compare(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3114 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3115 int i, n;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3116 basicblock *cleanup = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3117
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3118 /* XXX the logic can be cleaned up for 1 or multiple comparisons */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3119 VISIT(c, expr, e->v.Compare.left);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3120 n = asdl_seq_LEN(e->v.Compare.ops);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3121 assert(n > 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3122 if (n > 1) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3123 cleanup = compiler_new_block(c);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3124 if (cleanup == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3125 return 0;
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3126 VISIT(c, expr,
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3127 (expr_ty)asdl_seq_GET(e->v.Compare.comparators, 0));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3128 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3129 for (i = 1; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3130 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3131 ADDOP(c, ROT_THREE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3132 ADDOP_I(c, COMPARE_OP,
37685 5e72b0c74100 Introduce asdl_int_seq, to hold cmpop_ty. Martin v. Löwis <martin@v.loewis.de> parents: 37680 diff changeset	3133 cmpop((cmpop_ty)(asdl_seq_GET(
37680 fe88e01ff6de revert - breaks build of Python/ast.c w/ gcc Skip Montanaro <skip@pobox.com> parents: 37679 diff changeset	3134 e->v.Compare.ops, i - 1))));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3135 ADDOP_JREL(c, JUMP_IF_FALSE, cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3136 NEXT_BLOCK(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3137 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3138 if (i < (n - 1))
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3139 VISIT(c, expr,
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3140 (expr_ty)asdl_seq_GET(e->v.Compare.comparators, i));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3141 }
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3142 VISIT(c, expr, (expr_ty)asdl_seq_GET(e->v.Compare.comparators, n - 1));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3143 ADDOP_I(c, COMPARE_OP,
37685 5e72b0c74100 Introduce asdl_int_seq, to hold cmpop_ty. Martin v. Löwis <martin@v.loewis.de> parents: 37680 diff changeset	3144 cmpop((cmpop_ty)(asdl_seq_GET(e->v.Compare.ops, n - 1))));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3145 if (n > 1) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3146 basicblock *end = compiler_new_block(c);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3147 if (end == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3148 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3149 ADDOP_JREL(c, JUMP_FORWARD, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3150 compiler_use_next_block(c, cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3151 ADDOP(c, ROT_TWO);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3152 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3153 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3154 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3155 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3156 }
37650 8c998c760191 casting nastiness to make C++ compiler happy Anthony Baxter <anthonybaxter@gmail.com> parents: 37614 diff changeset	3157 #undef CMPCAST
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3158
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3159 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3160 compiler_call(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3161 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3162 int n, code = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3163
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3164 VISIT(c, expr, e->v.Call.func);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3165 n = asdl_seq_LEN(e->v.Call.args);
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	3166 VISIT_SEQ(c, expr, e->v.Call.args);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3167 if (e->v.Call.keywords) {
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	3168 VISIT_SEQ(c, keyword, e->v.Call.keywords);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3169 n \|= asdl_seq_LEN(e->v.Call.keywords) << 8;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3170 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3171 if (e->v.Call.starargs) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3172 VISIT(c, expr, e->v.Call.starargs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3173 code \|= 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3174 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3175 if (e->v.Call.kwargs) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3176 VISIT(c, expr, e->v.Call.kwargs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3177 code \|= 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3178 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3179 switch (code) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3180 case 0:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3181 ADDOP_I(c, CALL_FUNCTION, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3182 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3183 case 1:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3184 ADDOP_I(c, CALL_FUNCTION_VAR, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3185 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3186 case 2:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3187 ADDOP_I(c, CALL_FUNCTION_KW, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3188 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3189 case 3:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3190 ADDOP_I(c, CALL_FUNCTION_VAR_KW, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3191 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3192 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3193 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3194 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3195
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3196 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3197 compiler_listcomp_generator(struct compiler c, PyObject tmpname,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3198 asdl_seq *generators, int gen_index,
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3199 expr_ty elt)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3200 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3201 /* generate code for the iterator, then each of the ifs,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3202 and then write to the element */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3203
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3204 comprehension_ty l;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3205 basicblock start, anchor, skip, if_cleanup;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3206 int i, n;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3207
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3208 start = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3209 skip = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3210 if_cleanup = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3211 anchor = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3212
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3213 if (start == NULL \|\| skip == NULL \|\| if_cleanup == NULL \|\|
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3214 anchor == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3215 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3216
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3217 l = (comprehension_ty)asdl_seq_GET(generators, gen_index);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3218 VISIT(c, expr, l->iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3219 ADDOP(c, GET_ITER);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3220 compiler_use_next_block(c, start);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3221 ADDOP_JREL(c, FOR_ITER, anchor);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3222 NEXT_BLOCK(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3223 VISIT(c, expr, l->target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3224
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3225 /* XXX this needs to be cleaned up...a lot! */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3226 n = asdl_seq_LEN(l->ifs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3227 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3228 expr_ty e = (expr_ty)asdl_seq_GET(l->ifs, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3229 VISIT(c, expr, e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3230 ADDOP_JREL(c, JUMP_IF_FALSE, if_cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3231 NEXT_BLOCK(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3232 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3233 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3234
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3235 if (++gen_index < asdl_seq_LEN(generators))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3236 if (!compiler_listcomp_generator(c, tmpname,
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3237 generators, gen_index, elt))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3238 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3239
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3240 /* only append after the last for generator */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3241 if (gen_index >= asdl_seq_LEN(generators)) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3242 if (!compiler_nameop(c, tmpname, Load))
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3243 return 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3244 VISIT(c, expr, elt);
36824 07f330ad1b47 SF bug 1442442: LIST_APPEND optimization got lost in the AST merge. Neal Norwitz <nnorwitz@gmail.com> parents: 36804 diff changeset	3245 ADDOP(c, LIST_APPEND);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3246
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3247 compiler_use_next_block(c, skip);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3248 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3249 for (i = 0; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3250 ADDOP_I(c, JUMP_FORWARD, 1);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3251 if (i == 0)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3252 compiler_use_next_block(c, if_cleanup);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3253 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3254 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3255 ADDOP_JABS(c, JUMP_ABSOLUTE, start);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3256 compiler_use_next_block(c, anchor);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3257 /* delete the append method added to locals */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3258 if (gen_index == 1)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3259 if (!compiler_nameop(c, tmpname, Del))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3260 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3261
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3262 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3263 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3264
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3265 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3266 compiler_listcomp(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3267 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3268 identifier tmp;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3269 int rc = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3270 static identifier append;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3271 asdl_seq *generators = e->v.ListComp.generators;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3272
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3273 assert(e->kind == ListComp_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3274 if (!append) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3275 append = PyString_InternFromString("append");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3276 if (!append)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3277 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3278 }
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3279 tmp = compiler_new_tmpname(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3280 if (!tmp)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3281 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3282 ADDOP_I(c, BUILD_LIST, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3283 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3284 if (compiler_nameop(c, tmp, Store))
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3285 rc = compiler_listcomp_generator(c, tmp, generators, 0,
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3286 e->v.ListComp.elt);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3287 Py_DECREF(tmp);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3288 return rc;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3289 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3290
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3291 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3292 compiler_genexp_generator(struct compiler *c,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3293 asdl_seq *generators, int gen_index,
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3294 expr_ty elt)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3295 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3296 /* generate code for the iterator, then each of the ifs,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3297 and then write to the element */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3298
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3299 comprehension_ty ge;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3300 basicblock start, anchor, skip, if_cleanup, *end;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3301 int i, n;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3302
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3303 start = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3304 skip = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3305 if_cleanup = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3306 anchor = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3307 end = compiler_new_block(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3308
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3309 if (start == NULL \|\| skip == NULL \|\| if_cleanup == NULL \|\|
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3310 anchor == NULL \|\| end == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3311 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3312
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3313 ge = (comprehension_ty)asdl_seq_GET(generators, gen_index);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3314 ADDOP_JREL(c, SETUP_LOOP, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3315 if (!compiler_push_fblock(c, LOOP, start))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3316 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3317
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3318 if (gen_index == 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3319 /* Receive outermost iter as an implicit argument */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3320 c->u->u_argcount = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3321 ADDOP_I(c, LOAD_FAST, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3322 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3323 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3324 /* Sub-iter - calculate on the fly */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3325 VISIT(c, expr, ge->iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3326 ADDOP(c, GET_ITER);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3327 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3328 compiler_use_next_block(c, start);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3329 ADDOP_JREL(c, FOR_ITER, anchor);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3330 NEXT_BLOCK(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3331 VISIT(c, expr, ge->target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3332
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3333 /* XXX this needs to be cleaned up...a lot! */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3334 n = asdl_seq_LEN(ge->ifs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3335 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3336 expr_ty e = (expr_ty)asdl_seq_GET(ge->ifs, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3337 VISIT(c, expr, e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3338 ADDOP_JREL(c, JUMP_IF_FALSE, if_cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3339 NEXT_BLOCK(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3340 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3341 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3342
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3343 if (++gen_index < asdl_seq_LEN(generators))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3344 if (!compiler_genexp_generator(c, generators, gen_index, elt))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3345 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3346
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3347 /* only append after the last 'for' generator */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3348 if (gen_index >= asdl_seq_LEN(generators)) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3349 VISIT(c, expr, elt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3350 ADDOP(c, YIELD_VALUE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3351 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3352
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3353 compiler_use_next_block(c, skip);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3354 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3355 for (i = 0; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3356 ADDOP_I(c, JUMP_FORWARD, 1);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3357 if (i == 0)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3358 compiler_use_next_block(c, if_cleanup);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3359
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3360 ADDOP(c, POP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3361 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3362 ADDOP_JABS(c, JUMP_ABSOLUTE, start);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3363 compiler_use_next_block(c, anchor);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3364 ADDOP(c, POP_BLOCK);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3365 compiler_pop_fblock(c, LOOP, start);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3366 compiler_use_next_block(c, end);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3367
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3368 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3369 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3370
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3371 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3372 compiler_genexp(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3373 {
35881 29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	3374 static identifier name;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3375 PyCodeObject *co;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3376 expr_ty outermost_iter = ((comprehension_ty)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3377 (asdl_seq_GET(e->v.GeneratorExp.generators,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3378 0)))->iter;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3379
35881 29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	3380 if (!name) {
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	3381 name = PyString_FromString("<genexpr>");
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	3382 if (!name)
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	3383 return 0;
29420bd3b5cb Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c Nick Coghlan <ncoghlan@gmail.com> parents: 35863 diff changeset	3384 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3385
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3386 if (!compiler_enter_scope(c, name, (void *)e, e->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3387 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3388 compiler_genexp_generator(c, e->v.GeneratorExp.generators, 0,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3389 e->v.GeneratorExp.elt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3390 co = assemble(c, 1);
35797 3778083fe2c8 Ensure that compiler_exit_scope() is called as necessary to free memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35790 diff changeset	3391 compiler_exit_scope(c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3392 if (co == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3393 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3394
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3395 compiler_make_closure(c, co, 0);
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3396 Py_DECREF(co);
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3397
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3398 VISIT(c, expr, outermost_iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3399 ADDOP(c, GET_ITER);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3400 ADDOP_I(c, CALL_FUNCTION, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3401
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3402 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3403 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3404
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3405 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3406 compiler_visit_keyword(struct compiler *c, keyword_ty k)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3407 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3408 ADDOP_O(c, LOAD_CONST, k->arg, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3409 VISIT(c, expr, k->value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3410 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3411 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3412
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3413 /* Test whether expression is constant. For constants, report
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3414 whether they are true or false.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3415
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3416 Return values: 1 for true, 0 for false, -1 for non-constant.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3417 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3418
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3419 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3420 expr_constant(expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3421 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3422 switch (e->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3423 case Num_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3424 return PyObject_IsTrue(e->v.Num.n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3425 case Str_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3426 return PyObject_IsTrue(e->v.Str.s);
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3427 case Name_kind:
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3428 /* __debug__ is not assignable, so we can optimize
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3429 * it away in if and while statements */
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3430 if (strcmp(PyString_AS_STRING(e->v.Name.id),
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3431 "__debug__") == 0)
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3432 return ! Py_OptimizeFlag;
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 38406 diff changeset	3433 /* fall through */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3434 default:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3435 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3436 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3437 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3438
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3439 /*
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3440 Implements the with statement from PEP 343.
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3441
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3442 The semantics outlined in that PEP are as follows:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3443
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3444 with EXPR as VAR:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3445 BLOCK
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3446
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3447 It is implemented roughly as:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3448
38084 a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37685 diff changeset	3449 context = EXPR
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3450 exit = context.__exit__ # not calling it
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3451 value = context.__enter__()
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3452 try:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3453 VAR = value # if VAR present in the syntax
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3454 BLOCK
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3455 finally:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3456 if an exception was raised:
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3457 exc = copy of (exception, instance, traceback)
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3458 else:
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3459 exc = (None, None, None)
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3460 exit(*exc)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3461 */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3462 static int
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3463 compiler_with(struct compiler *c, stmt_ty s)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3464 {
38084 a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37685 diff changeset	3465 static identifier enter_attr, exit_attr;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3466 basicblock block, finally;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3467 identifier tmpexit, tmpvalue = NULL;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3468
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3469 assert(s->kind == With_kind);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3470
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3471 if (!enter_attr) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3472 enter_attr = PyString_InternFromString("__enter__");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3473 if (!enter_attr)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3474 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3475 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3476 if (!exit_attr) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3477 exit_attr = PyString_InternFromString("__exit__");
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3478 if (!exit_attr)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3479 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3480 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3481
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3482 block = compiler_new_block(c);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3483 finally = compiler_new_block(c);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3484 if (!block \|\| !finally)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3485 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3486
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3487 /* Create a temporary variable to hold context.__exit__ */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3488 tmpexit = compiler_new_tmpname(c);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3489 if (tmpexit == NULL)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3490 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3491 PyArena_AddPyObject(c->c_arena, tmpexit);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3492
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3493 if (s->v.With.optional_vars) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3494 /* Create a temporary variable to hold context.__enter__().
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3495 We need to do this rather than preserving it on the stack
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3496 because SETUP_FINALLY remembers the stack level.
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3497 We need to do the assignment inside the try/finally
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3498 so that context.__exit__() is called when the assignment
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3499 fails. But we need to call context.__enter__() before
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3500 the try/finally so that if it fails we won't call
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3501 context.__exit__().
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3502 */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3503 tmpvalue = compiler_new_tmpname(c);
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3504 if (tmpvalue == NULL)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3505 return 0;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3506 PyArena_AddPyObject(c->c_arena, tmpvalue);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3507 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3508
38084 a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37685 diff changeset	3509 /* Evaluate EXPR */
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3510 VISIT(c, expr, s->v.With.context_expr);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3511
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3512 /* Squirrel away context.__exit__ */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3513 ADDOP(c, DUP_TOP);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3514 ADDOP_O(c, LOAD_ATTR, exit_attr, names);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3515 if (!compiler_nameop(c, tmpexit, Store))
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3516 return 0;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3517
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3518 /* Call context.__enter__() */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3519 ADDOP_O(c, LOAD_ATTR, enter_attr, names);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3520 ADDOP_I(c, CALL_FUNCTION, 0);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3521
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3522 if (s->v.With.optional_vars) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3523 /* Store it in tmpvalue */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3524 if (!compiler_nameop(c, tmpvalue, Store))
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3525 return 0;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3526 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3527 else {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3528 /* Discard result from context.__enter__() */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3529 ADDOP(c, POP_TOP);
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3530 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3531
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3532 /* Start the try block */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3533 ADDOP_JREL(c, SETUP_FINALLY, finally);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3534
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3535 compiler_use_next_block(c, block);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3536 if (!compiler_push_fblock(c, FINALLY_TRY, block)) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3537 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3538 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3539
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3540 if (s->v.With.optional_vars) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3541 /* Bind saved result of context.__enter__() to VAR */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3542 if (!compiler_nameop(c, tmpvalue, Load) \|\|
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3543 !compiler_nameop(c, tmpvalue, Del))
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3544 return 0;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3545 VISIT(c, expr, s->v.With.optional_vars);
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3546 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3547
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3548 /* BLOCK code */
37614 72ceb1b30d4b per Jeremy's email, remove the _WITH_CAST versions of macros. g++ Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	3549 VISIT_SEQ(c, stmt, s->v.With.body);
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3550
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3551 /* End of try block; start the finally block */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3552 ADDOP(c, POP_BLOCK);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3553 compiler_pop_fblock(c, FINALLY_TRY, block);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3554
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3555 ADDOP_O(c, LOAD_CONST, Py_None, consts);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3556 compiler_use_next_block(c, finally);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3557 if (!compiler_push_fblock(c, FINALLY_END, finally))
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3558 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3559
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3560 /* Finally block starts; push tmpexit and issue our magic opcode. */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3561 if (!compiler_nameop(c, tmpexit, Load) \|\|
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3562 !compiler_nameop(c, tmpexit, Del))
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3563 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3564 ADDOP(c, WITH_CLEANUP);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3565
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3566 /* Finally block ends. */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3567 ADDOP(c, END_FINALLY);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3568 compiler_pop_fblock(c, FINALLY_END, finally);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3569 return 1;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3570 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	3571
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3572 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3573 compiler_visit_expr(struct compiler *c, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3574 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3575 int i, n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3576
37390 5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	3577 /* If expr e has a different line number than the last expr/stmt,
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	3578 set a new line number for the next instruction.
5e1cf21d4ab2 Expand comments on line numbers and blocks. Jeremy Hylton <jeremy@alum.mit.edu> parents: 37067 diff changeset	3579 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3580 if (e->lineno > c->u->u_lineno) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3581 c->u->u_lineno = e->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3582 c->u->u_lineno_set = false;
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	3583 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3584 switch (e->kind) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3585 case BoolOp_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3586 return compiler_boolop(c, e);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3587 case BinOp_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3588 VISIT(c, expr, e->v.BinOp.left);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3589 VISIT(c, expr, e->v.BinOp.right);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3590 ADDOP(c, binop(c, e->v.BinOp.op));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3591 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3592 case UnaryOp_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3593 VISIT(c, expr, e->v.UnaryOp.operand);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3594 ADDOP(c, unaryop(e->v.UnaryOp.op));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3595 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3596 case Lambda_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3597 return compiler_lambda(c, e);
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	3598 case IfExp_kind:
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	3599 return compiler_ifexp(c, e);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3600 case Dict_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3601 /* XXX get rid of arg? */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3602 ADDOP_I(c, BUILD_MAP, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3603 n = asdl_seq_LEN(e->v.Dict.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3604 /* We must arrange things just right for STORE_SUBSCR.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3605 It wants the stack to look like (value) (dict) (key) */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3606 for (i = 0; i < n; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3607 ADDOP(c, DUP_TOP);
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3608 VISIT(c, expr,
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3609 (expr_ty)asdl_seq_GET(e->v.Dict.values, i));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3610 ADDOP(c, ROT_TWO);
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3611 VISIT(c, expr,
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3612 (expr_ty)asdl_seq_GET(e->v.Dict.keys, i));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3613 ADDOP(c, STORE_SUBSCR);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3614 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3615 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3616 case ListComp_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3617 return compiler_listcomp(c, e);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3618 case GeneratorExp_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3619 return compiler_genexp(c, e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3620 case Yield_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3621 if (c->u->u_ste->ste_type != FunctionBlock)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3622 return compiler_error(c, "'yield' outside function");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3623 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3624 for (i = 0; i < c->u->u_nfblocks; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3625 if (c->u->u_fblock[i].fb_type == FINALLY_TRY)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3626 return compiler_error(
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3627 c, "'yield' not allowed in a 'try' "
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3628 "block with a 'finally' clause");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3629 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3630 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3631 if (e->v.Yield.value) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3632 VISIT(c, expr, e->v.Yield.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3633 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3634 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3635 ADDOP_O(c, LOAD_CONST, Py_None, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3636 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3637 ADDOP(c, YIELD_VALUE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3638 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3639 case Compare_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3640 return compiler_compare(c, e);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3641 case Call_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3642 return compiler_call(c, e);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3643 case Repr_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3644 VISIT(c, expr, e->v.Repr.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3645 ADDOP(c, UNARY_CONVERT);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3646 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3647 case Num_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3648 ADDOP_O(c, LOAD_CONST, e->v.Num.n, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3649 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3650 case Str_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3651 ADDOP_O(c, LOAD_CONST, e->v.Str.s, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3652 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3653 /* The following exprs can be assignment targets. */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3654 case Attribute_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3655 if (e->v.Attribute.ctx != AugStore)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3656 VISIT(c, expr, e->v.Attribute.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3657 switch (e->v.Attribute.ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3658 case AugLoad:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3659 ADDOP(c, DUP_TOP);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3660 /* Fall through to load */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3661 case Load:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3662 ADDOP_NAME(c, LOAD_ATTR, e->v.Attribute.attr, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3663 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3664 case AugStore:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3665 ADDOP(c, ROT_TWO);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3666 /* Fall through to save */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3667 case Store:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3668 ADDOP_NAME(c, STORE_ATTR, e->v.Attribute.attr, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3669 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3670 case Del:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3671 ADDOP_NAME(c, DELETE_ATTR, e->v.Attribute.attr, names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3672 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3673 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3674 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3675 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3676 "param invalid in attribute expression");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3677 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3678 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3679 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3680 case Subscript_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3681 switch (e->v.Subscript.ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3682 case AugLoad:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3683 VISIT(c, expr, e->v.Subscript.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3684 VISIT_SLICE(c, e->v.Subscript.slice, AugLoad);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3685 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3686 case Load:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3687 VISIT(c, expr, e->v.Subscript.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3688 VISIT_SLICE(c, e->v.Subscript.slice, Load);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3689 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3690 case AugStore:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3691 VISIT_SLICE(c, e->v.Subscript.slice, AugStore);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3692 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3693 case Store:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3694 VISIT(c, expr, e->v.Subscript.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3695 VISIT_SLICE(c, e->v.Subscript.slice, Store);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3696 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3697 case Del:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3698 VISIT(c, expr, e->v.Subscript.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3699 VISIT_SLICE(c, e->v.Subscript.slice, Del);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3700 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3701 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3702 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3703 PyErr_SetString(PyExc_SystemError,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3704 "param invalid in subscript expression");
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3705 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3706 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3707 break;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3708 case Name_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3709 return compiler_nameop(c, e->v.Name.id, e->v.Name.ctx);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3710 /* child nodes of List and Tuple will have expr_context set */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3711 case List_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3712 return compiler_list(c, e);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3713 case Tuple_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3714 return compiler_tuple(c, e);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3715 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3716 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3717 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3718
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3719 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3720 compiler_augassign(struct compiler *c, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3721 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3722 expr_ty e = s->v.AugAssign.target;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3723 expr_ty auge;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3724
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3725 assert(s->kind == AugAssign_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3726
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3727 switch (e->kind) {
38765 47d8d19ccadc Fix indentation of case and a Py_ssize_t issue. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	3728 case Attribute_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3729 auge = Attribute(e->v.Attribute.value, e->v.Attribute.attr,
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36766 diff changeset	3730 AugLoad, e->lineno, e->col_offset, c->c_arena);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3731 if (auge == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3732 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3733 VISIT(c, expr, auge);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3734 VISIT(c, expr, s->v.AugAssign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3735 ADDOP(c, inplace_binop(c, s->v.AugAssign.op));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3736 auge->v.Attribute.ctx = AugStore;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3737 VISIT(c, expr, auge);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3738 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3739 case Subscript_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3740 auge = Subscript(e->v.Subscript.value, e->v.Subscript.slice,
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36766 diff changeset	3741 AugLoad, e->lineno, e->col_offset, c->c_arena);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3742 if (auge == NULL)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3743 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3744 VISIT(c, expr, auge);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3745 VISIT(c, expr, s->v.AugAssign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3746 ADDOP(c, inplace_binop(c, s->v.AugAssign.op));
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3747 auge->v.Subscript.ctx = AugStore;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3748 VISIT(c, expr, auge);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3749 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3750 case Name_kind:
39037 9f70f6ba7b69 Fix AST compiler bug #1501934: incorrect LOAD/STORE_GLOBAL generation. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 38765 diff changeset	3751 if (!compiler_nameop(c, e->v.Name.id, Load))
9f70f6ba7b69 Fix AST compiler bug #1501934: incorrect LOAD/STORE_GLOBAL generation. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 38765 diff changeset	3752 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3753 VISIT(c, expr, s->v.AugAssign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3754 ADDOP(c, inplace_binop(c, s->v.AugAssign.op));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3755 return compiler_nameop(c, e->v.Name.id, Store);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3756 default:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3757 PyErr_Format(PyExc_SystemError,
8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3758 "invalid node type (%d) for augmented assignment",
8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3759 e->kind);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3760 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3761 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3762 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3763 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3764
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3765 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3766 compiler_push_fblock(struct compiler c, enum fblocktype t, basicblock b)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3767 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3768 struct fblockinfo *f;
40233 9acc1775d571 Backport 52504: Neal Norwitz <nnorwitz@gmail.com> parents: 40044 diff changeset	3769 if (c->u->u_nfblocks >= CO_MAXBLOCKS) {
9acc1775d571 Backport 52504: Neal Norwitz <nnorwitz@gmail.com> parents: 40044 diff changeset	3770 PyErr_SetString(PyExc_SystemError,
9acc1775d571 Backport 52504: Neal Norwitz <nnorwitz@gmail.com> parents: 40044 diff changeset	3771 "too many statically nested blocks");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3772 return 0;
40233 9acc1775d571 Backport 52504: Neal Norwitz <nnorwitz@gmail.com> parents: 40044 diff changeset	3773 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3774 f = &c->u->u_fblock[c->u->u_nfblocks++];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3775 f->fb_type = t;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3776 f->fb_block = b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3777 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3778 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3779
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3780 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3781 compiler_pop_fblock(struct compiler c, enum fblocktype t, basicblock b)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3782 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3783 struct compiler_unit *u = c->u;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3784 assert(u->u_nfblocks > 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3785 u->u_nfblocks--;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3786 assert(u->u_fblock[u->u_nfblocks].fb_type == t);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3787 assert(u->u_fblock[u->u_nfblocks].fb_block == b);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3788 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3789
40044 9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3790 static int
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3791 compiler_in_loop(struct compiler *c) {
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3792 int i;
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3793 struct compiler_unit *u = c->u;
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3794 for (i = 0; i < u->u_nfblocks; ++i) {
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3795 if (u->u_fblock[i].fb_type == LOOP)
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3796 return 1;
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3797 }
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3798 return 0;
9e0431fd674a Fix #1569998: no break inside try statement (outside loop) allowed. Georg Brandl <georg@python.org> parents: 40042 diff changeset	3799 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3800 /* Raises a SyntaxError and returns 0.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3801 If something goes wrong, a different exception may be raised.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3802 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3803
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3804 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3805 compiler_error(struct compiler c, const char errstr)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3806 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3807 PyObject *loc;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3808 PyObject u = NULL, v = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3809
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3810 loc = PyErr_ProgramText(c->c_filename, c->u->u_lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3811 if (!loc) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3812 Py_INCREF(Py_None);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3813 loc = Py_None;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3814 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3815 u = Py_BuildValue("(ziOO)", c->c_filename, c->u->u_lineno,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3816 Py_None, loc);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3817 if (!u)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3818 goto exit;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3819 v = Py_BuildValue("(zO)", errstr, u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3820 if (!v)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3821 goto exit;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3822 PyErr_SetObject(PyExc_SyntaxError, v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3823 exit:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3824 Py_DECREF(loc);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3825 Py_XDECREF(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3826 Py_XDECREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3827 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3828 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3829
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3830 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3831 compiler_handle_subscr(struct compiler c, const char kind,
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3832 expr_context_ty ctx)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3833 {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3834 int op = 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3835
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3836 /* XXX this code is duplicated */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3837 switch (ctx) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3838 case AugLoad: /* fall through to Load */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3839 case Load: op = BINARY_SUBSCR; break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3840 case AugStore:/* fall through to Store */
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3841 case Store: op = STORE_SUBSCR; break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3842 case Del: op = DELETE_SUBSCR; break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3843 case Param:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3844 PyErr_Format(PyExc_SystemError,
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3845 "invalid %s kind %d in subscript\n",
8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3846 kind, ctx);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3847 return 0;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3848 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3849 if (ctx == AugLoad) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3850 ADDOP_I(c, DUP_TOPX, 2);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3851 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3852 else if (ctx == AugStore) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3853 ADDOP(c, ROT_THREE);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3854 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3855 ADDOP(c, op);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3856 return 1;
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	3857 }
cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	3858
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3859 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3860 compiler_slice(struct compiler *c, slice_ty s, expr_context_ty ctx)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3861 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3862 int n = 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3863 assert(s->kind == Slice_kind);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3864
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3865 /* only handles the cases where BUILD_SLICE is emitted */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3866 if (s->v.Slice.lower) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3867 VISIT(c, expr, s->v.Slice.lower);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3868 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3869 else {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3870 ADDOP_O(c, LOAD_CONST, Py_None, consts);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3871 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3872
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3873 if (s->v.Slice.upper) {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3874 VISIT(c, expr, s->v.Slice.upper);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3875 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3876 else {
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3877 ADDOP_O(c, LOAD_CONST, Py_None, consts);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3878 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3879
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3880 if (s->v.Slice.step) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3881 n++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3882 VISIT(c, expr, s->v.Slice.step);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3883 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3884 ADDOP_I(c, BUILD_SLICE, n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3885 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3886 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3887
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3888 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3889 compiler_simple_slice(struct compiler *c, slice_ty s, expr_context_ty ctx)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3890 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3891 int op = 0, slice_offset = 0, stack_count = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3892
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3893 assert(s->v.Slice.step == NULL);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3894 if (s->v.Slice.lower) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3895 slice_offset++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3896 stack_count++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3897 if (ctx != AugStore)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3898 VISIT(c, expr, s->v.Slice.lower);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3899 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3900 if (s->v.Slice.upper) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3901 slice_offset += 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3902 stack_count++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3903 if (ctx != AugStore)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3904 VISIT(c, expr, s->v.Slice.upper);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3905 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3906
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3907 if (ctx == AugLoad) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3908 switch (stack_count) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3909 case 0: ADDOP(c, DUP_TOP); break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3910 case 1: ADDOP_I(c, DUP_TOPX, 2); break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3911 case 2: ADDOP_I(c, DUP_TOPX, 3); break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3912 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3913 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3914 else if (ctx == AugStore) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3915 switch (stack_count) {
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3916 case 0: ADDOP(c, ROT_TWO); break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3917 case 1: ADDOP(c, ROT_THREE); break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3918 case 2: ADDOP(c, ROT_FOUR); break;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3919 }
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	3920 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3921
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3922 switch (ctx) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3923 case AugLoad: /* fall through to Load */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3924 case Load: op = SLICE; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3925 case AugStore:/* fall through to Store */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3926 case Store: op = STORE_SLICE; break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3927 case Del: op = DELETE_SLICE; break;
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3928 case Param:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3929 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3930 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3931 "param invalid in simple slice");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3932 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3933 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3934
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3935 ADDOP(c, op + slice_offset);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3936 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3937 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3938
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3939 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3940 compiler_visit_nested_slice(struct compiler *c, slice_ty s,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3941 expr_context_ty ctx)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3942 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3943 switch (s->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3944 case Ellipsis_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3945 ADDOP_O(c, LOAD_CONST, Py_Ellipsis, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3946 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3947 case Slice_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3948 return compiler_slice(c, s, ctx);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3949 case Index_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3950 VISIT(c, expr, s->v.Index.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3951 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3952 case ExtSlice_kind:
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	3953 default:
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3954 PyErr_SetString(PyExc_SystemError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3955 "extended slice invalid in nested slice");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35881 diff changeset	3956 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3957 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3958 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3959 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3960
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3961
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3962 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3963 compiler_visit_slice(struct compiler *c, slice_ty s, expr_context_ty ctx)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3964 {
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3965 char * kindname = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3966 switch (s->kind) {
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3967 case Index_kind:
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3968 kindname = "index";
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3969 if (ctx != AugStore) {
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3970 VISIT(c, expr, s->v.Index.value);
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3971 }
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3972 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3973 case Ellipsis_kind:
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3974 kindname = "ellipsis";
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3975 if (ctx != AugStore) {
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3976 ADDOP_O(c, LOAD_CONST, Py_Ellipsis, consts);
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3977 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3978 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3979 case Slice_kind:
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3980 kindname = "slice";
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3981 if (!s->v.Slice.step)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3982 return compiler_simple_slice(c, s, ctx);
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3983 if (ctx != AugStore) {
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3984 if (!compiler_slice(c, s, ctx))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3985 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	3986 }
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3987 break;
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3988 case ExtSlice_kind:
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3989 kindname = "extended slice";
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3990 if (ctx != AugStore) {
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3991 int i, n = asdl_seq_LEN(s->v.ExtSlice.dims);
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3992 for (i = 0; i < n; i++) {
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3993 slice_ty sub = (slice_ty)asdl_seq_GET(
f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 37558 diff changeset	3994 s->v.ExtSlice.dims, i);
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3995 if (!compiler_visit_nested_slice(c, sub, ctx))
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3996 return 0;
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3997 }
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3998 ADDOP_I(c, BUILD_TUPLE, n);
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	3999 }
9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	4000 break;
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	4001 default:
8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	4002 PyErr_Format(PyExc_SystemError,
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	4003 "invalid subscript kind %d", s->kind);
36079 8ebe34eb3eb7 Handle more error conditions with SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 36076 diff changeset	4004 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4005 }
36965 9a08724110d0 Fix SF bug #1448804 and ad a test to ensure that all subscript operations continue to be handled correctly Nick Coghlan <ncoghlan@gmail.com> parents: 36926 diff changeset	4006 return compiler_handle_subscr(c, kindname, ctx);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4007 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4008
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4009 /* do depth-first search of basic block graph, starting with block.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4010 post records the block indices in post-order.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4011
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4012 XXX must handle implicit jumps from one block to next
16015 c832ef72499d This patch introduces an extra pass to the compiler that generates a Jeremy Hylton <jeremy@alum.mit.edu> parents: 16006 diff changeset	4013 */
c832ef72499d This patch introduces an extra pass to the compiler that generates a Jeremy Hylton <jeremy@alum.mit.edu> parents: 16006 diff changeset	4014
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4015 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4016 dfs(struct compiler c, basicblock b, struct assembler *a)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4017 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4018 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4019 struct instr *instr = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4020
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4021 if (b->b_seen)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4022 return;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4023 b->b_seen = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4024 if (b->b_next != NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4025 dfs(c, b->b_next, a);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4026 for (i = 0; i < b->b_iused; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4027 instr = &b->b_instr[i];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4028 if (instr->i_jrel \|\| instr->i_jabs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4029 dfs(c, instr->i_target, a);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4030 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4031 a->a_postorder[a->a_nblocks++] = b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4032 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4033
35860 9b885c934144 make internal method static Neal Norwitz <nnorwitz@gmail.com> parents: 35797 diff changeset	4034 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4035 stackdepth_walk(struct compiler c, basicblock b, int depth, int maxdepth)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4036 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4037 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4038 struct instr *instr;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4039 if (b->b_seen \|\| b->b_startdepth >= depth)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4040 return maxdepth;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4041 b->b_seen = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4042 b->b_startdepth = depth;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4043 for (i = 0; i < b->b_iused; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4044 instr = &b->b_instr[i];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4045 depth += opcode_stack_effect(instr->i_opcode, instr->i_oparg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4046 if (depth > maxdepth)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4047 maxdepth = depth;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4048 assert(depth >= 0); /* invalid code or bug in stackdepth() */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4049 if (instr->i_jrel \|\| instr->i_jabs) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4050 maxdepth = stackdepth_walk(c, instr->i_target,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4051 depth, maxdepth);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4052 if (instr->i_opcode == JUMP_ABSOLUTE \|\|
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4053 instr->i_opcode == JUMP_FORWARD) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4054 goto out; /* remaining code is dead */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4055 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4056 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4057 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4058 if (b->b_next)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4059 maxdepth = stackdepth_walk(c, b->b_next, depth, maxdepth);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4060 out:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4061 b->b_seen = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4062 return maxdepth;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4063 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4064
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4065 /* Find the flow path that needs the largest stack. We assume that
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4066 * cycles in the flow graph have no net effect on the stack depth.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4067 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4068 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4069 stackdepth(struct compiler *c)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4070 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4071 basicblock b, entryblock;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4072 entryblock = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4073 for (b = c->u->u_blocks; b != NULL; b = b->b_list) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4074 b->b_seen = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4075 b->b_startdepth = INT_MIN;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4076 entryblock = b;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4077 }
39140 1805e684dc92 If the for loop isn't entered, entryblock will be NULL. If passed Neal Norwitz <nnorwitz@gmail.com> parents: 39135 diff changeset	4078 if (!entryblock)
1805e684dc92 If the for loop isn't entered, entryblock will be NULL. If passed Neal Norwitz <nnorwitz@gmail.com> parents: 39135 diff changeset	4079 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4080 return stackdepth_walk(c, entryblock, 0, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4081 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4082
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4083 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4084 assemble_init(struct assembler *a, int nblocks, int firstlineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4085 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4086 memset(a, 0, sizeof(struct assembler));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4087 a->a_lineno = firstlineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4088 a->a_bytecode = PyString_FromStringAndSize(NULL, DEFAULT_CODE_SIZE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4089 if (!a->a_bytecode)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4090 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4091 a->a_lnotab = PyString_FromStringAndSize(NULL, DEFAULT_LNOTAB_SIZE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4092 if (!a->a_lnotab)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4093 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4094 a->a_postorder = (basicblock **)PyObject_Malloc(
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4095 sizeof(basicblock ) nblocks);
36076 aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	4096 if (!a->a_postorder) {
aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	4097 PyErr_NoMemory();
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4098 return 0;
36076 aa7d7df853d5 Set MemoryError when alloc fails Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	4099 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4100 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4101 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4102
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4103 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4104 assemble_free(struct assembler *a)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4105 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4106 Py_XDECREF(a->a_bytecode);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4107 Py_XDECREF(a->a_lnotab);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4108 if (a->a_postorder)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4109 PyObject_Free(a->a_postorder);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4110 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4111
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4112 /* Return the size of a basic block in bytes. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4113
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4114 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4115 instrsize(struct instr *instr)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4116 {
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4117 if (!instr->i_hasarg)
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4118 return 1;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4119 if (instr->i_oparg > 0xffff)
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4120 return 6;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4121 return 3;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4122 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4123
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4124 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4125 blocksize(basicblock *b)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4126 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4127 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4128 int size = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4129
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4130 for (i = 0; i < b->b_iused; i++)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4131 size += instrsize(&b->b_instr[i]);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4132 return size;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4133 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4134
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4135 /* All about a_lnotab.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4136
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4137 c_lnotab is an array of unsigned bytes disguised as a Python string.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4138 It is used to map bytecode offsets to source code line #s (when needed
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4139 for tracebacks).
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 24818 diff changeset	4140
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4141 The array is conceptually a list of
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4142 (bytecode offset increment, line number increment)
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4143 pairs. The details are important and delicate, best illustrated by example:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4144
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4145 byte code offset source code line number
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4146 0 1
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4147 6 2
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4148 50 7
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4149 350 307
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4150 361 308
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4151
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4152 The first trick is that these numbers aren't stored, only the increments
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4153 from one row to the next (this doesn't really work, but it's a start):
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4154
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4155 0, 1, 6, 1, 44, 5, 300, 300, 11, 1
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4156
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4157 The second trick is that an unsigned byte can't hold negative values, or
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4158 values larger than 255, so (a) there's a deep assumption that byte code
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4159 offsets and their corresponding line #s both increase monotonically, and (b)
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4160 if at least one column jumps by more than 255 from one row to the next, more
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4161 than one pair is written to the table. In case #b, there's no way to know
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4162 from looking at the table later how many were written. That's the delicate
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4163 part. A user of c_lnotab desiring to find the source line number
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4164 corresponding to a bytecode address A should do something like this
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4165
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4166 lineno = addr = 0
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4167 for addr_incr, line_incr in c_lnotab:
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4168 addr += addr_incr
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4169 if addr > A:
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4170 return lineno
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4171 lineno += line_incr
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4172
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4173 In order for this to work, when the addr field increments by more than 255,
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4174 the line # increment in each pair generated must be 0 until the remaining addr
39094 756d57acda85 Bug #1512814, Fix incorrect lineno's when code within a function Neal Norwitz <nnorwitz@gmail.com> parents: 39040 diff changeset	4175 increment is < 256. So, in the example above, assemble_lnotab (it used
756d57acda85 Bug #1512814, Fix incorrect lineno's when code within a function Neal Norwitz <nnorwitz@gmail.com> parents: 39040 diff changeset	4176 to be called com_set_lineno) should not (as was actually done until 2.2)
756d57acda85 Bug #1512814, Fix incorrect lineno's when code within a function Neal Norwitz <nnorwitz@gmail.com> parents: 39040 diff changeset	4177 expand 300, 300 to 255, 255, 45, 45,
756d57acda85 Bug #1512814, Fix incorrect lineno's when code within a function Neal Norwitz <nnorwitz@gmail.com> parents: 39040 diff changeset	4178 but to 255, 0, 45, 255, 0, 45.
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4179 */
889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4180
17518 f939ce52a734 Make some private symbols static. Guido van Rossum <guido@python.org> parents: 17355 diff changeset	4181 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4182 assemble_lnotab(struct assembler a, struct instr i)
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4183 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4184 int d_bytecode, d_lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4185 int len;
37555 231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4186 unsigned char *lnotab;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4187
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4188 d_bytecode = a->a_offset - a->a_lineno_off;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4189 d_lineno = i->i_lineno - a->a_lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4190
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4191 assert(d_bytecode >= 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4192 assert(d_lineno >= 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4193
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4194 if (d_bytecode > 255) {
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	4195 int j, nbytes, ncodes = d_bytecode / 255;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4196 nbytes = a->a_lnotab_off + 2 * ncodes;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4197 len = PyString_GET_SIZE(a->a_lnotab);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4198 if (nbytes >= len) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4199 if (len * 2 < nbytes)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4200 len = nbytes;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4201 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4202 len *= 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4203 if (_PyString_Resize(&a->a_lnotab, len) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4204 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4205 }
37555 231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4206 lnotab = (unsigned char *)
231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4207 PyString_AS_STRING(a->a_lnotab) + a->a_lnotab_off;
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	4208 for (j = 0; j < ncodes; j++) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4209 *lnotab++ = 255;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4210 *lnotab++ = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4211 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4212 d_bytecode -= ncodes * 255;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4213 a->a_lnotab_off += ncodes * 2;
5041 c497929b2371 Instead of emitting SET_LINENO instructions, generate a line number Guido van Rossum <guido@python.org> parents: 5011 diff changeset	4214 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4215 assert(d_bytecode <= 255);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4216 if (d_lineno > 255) {
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	4217 int j, nbytes, ncodes = d_lineno / 255;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4218 nbytes = a->a_lnotab_off + 2 * ncodes;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4219 len = PyString_GET_SIZE(a->a_lnotab);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4220 if (nbytes >= len) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4221 if (len * 2 < nbytes)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4222 len = nbytes;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4223 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4224 len *= 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4225 if (_PyString_Resize(&a->a_lnotab, len) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4226 return 0;
18065 889db6d55506 SF bug 430991: wrong co_lnotab Tim Peters <tim.peters@gmail.com> parents: 17736 diff changeset	4227 }
37555 231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4228 lnotab = (unsigned char *)
231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4229 PyString_AS_STRING(a->a_lnotab) + a->a_lnotab_off;
39094 756d57acda85 Bug #1512814, Fix incorrect lineno's when code within a function Neal Norwitz <nnorwitz@gmail.com> parents: 39040 diff changeset	4230 *lnotab++ = d_bytecode;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4231 *lnotab++ = 255;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4232 d_bytecode = 0;
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	4233 for (j = 1; j < ncodes; j++) {
39094 756d57acda85 Bug #1512814, Fix incorrect lineno's when code within a function Neal Norwitz <nnorwitz@gmail.com> parents: 39040 diff changeset	4234 *lnotab++ = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4235 *lnotab++ = 255;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4236 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4237 d_lineno -= ncodes * 255;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4238 a->a_lnotab_off += ncodes * 2;
14147 21ec69a56228 Charles G. Waldman <cgw@fnal.gov>: Fred Drake <fdrake@acm.org> parents: 14117 diff changeset	4239 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4240
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4241 len = PyString_GET_SIZE(a->a_lnotab);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4242 if (a->a_lnotab_off + 2 >= len) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4243 if (_PyString_Resize(&a->a_lnotab, len * 2) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4244 return 0;
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4245 }
37555 231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4246 lnotab = (unsigned char *)
231e42d0362e Fix some warnings on HP-UX when using cc/aCC Neal Norwitz <nnorwitz@gmail.com> parents: 37468 diff changeset	4247 PyString_AS_STRING(a->a_lnotab) + a->a_lnotab_off;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4248
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4249 a->a_lnotab_off += 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4250 if (d_bytecode) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4251 *lnotab++ = d_bytecode;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4252 *lnotab++ = d_lineno;
73 3028acaa56b0 Compile class definitions. Guido van Rossum <guido@python.org> parents: 69 diff changeset	4253 }
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4254 else { /* First line of a block; def stmt, etc. */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4255 *lnotab++ = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4256 *lnotab++ = d_lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4257 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4258 a->a_lineno = i->i_lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4259 a->a_lineno_off = a->a_offset;
4129 eedaa59341b9 Name mangling, what the heck! Guido van Rossum <guido@python.org> parents: 4003 diff changeset	4260 return 1;
eedaa59341b9 Name mangling, what the heck! Guido van Rossum <guido@python.org> parents: 4003 diff changeset	4261 }
16015 c832ef72499d This patch introduces an extra pass to the compiler that generates a Jeremy Hylton <jeremy@alum.mit.edu> parents: 16006 diff changeset	4262
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4263 /* assemble_emit()
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4264 Extend the bytecode with a new instruction.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4265 Update lnotab if necessary.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4266 */
16257 fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4267
24855 bed5d5e536bc Add warnings for assignment or deletion of variables and attributes Guido van Rossum <guido@python.org> parents: 24854 diff changeset	4268 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4269 assemble_emit(struct assembler a, struct instr i)
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4270 {
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4271 int size, arg = 0, ext = 0;
38765 47d8d19ccadc Fix indentation of case and a Py_ssize_t issue. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	4272 Py_ssize_t len = PyString_GET_SIZE(a->a_bytecode);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4273 char *code;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4274
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4275 size = instrsize(i);
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4276 if (i->i_hasarg) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4277 arg = i->i_oparg;
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4278 ext = arg >> 16;
32121 302d399cfd37 SF patch #872326: Generator expression implementation Raymond Hettinger <python@rcn.com> parents: 31764 diff changeset	4279 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4280 if (i->i_lineno && !assemble_lnotab(a, i))
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4281 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4282 if (a->a_offset + size >= len) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4283 if (_PyString_Resize(&a->a_bytecode, len * 2) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4284 return 0;
2813 999b5bdc18ce 3rd arg for raise; INCOMPLETE keyword parameter passing (currently f(kw=value) is seen as f('kw', value)) Guido van Rossum <guido@python.org> parents: 2367 diff changeset	4285 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4286 code = PyString_AS_STRING(a->a_bytecode) + a->a_offset;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4287 a->a_offset += size;
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4288 if (size == 6) {
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4289 assert(i->i_hasarg);
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4290 *code++ = (char)EXTENDED_ARG;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4291 *code++ = ext & 0xff;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4292 *code++ = ext >> 8;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4293 arg &= 0xffff;
4991 8276916e1ea8 Add co_stacksize field to codeobject structure, and stacksize argument Guido van Rossum <guido@python.org> parents: 4905 diff changeset	4294 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4295 *code++ = i->i_opcode;
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4296 if (i->i_hasarg) {
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4297 assert(size == 3 \|\| size == 6);
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4298 *code++ = arg & 0xff;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4299 *code++ = arg >> 8;
19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4300 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4301 return 1;
19187 30f8b654c2e5 SF Patch [ 429024 ] deal with some unary ops at compile time Jeremy Hylton <jeremy@alum.mit.edu> parents: 19177 diff changeset	4302 }
30f8b654c2e5 SF Patch [ 429024 ] deal with some unary ops at compile time Jeremy Hylton <jeremy@alum.mit.edu> parents: 19177 diff changeset	4303
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4304 static void
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4305 assemble_jump_offsets(struct assembler a, struct compiler c)
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4306 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4307 basicblock *b;
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4308 int bsize, totsize, extended_arg_count, last_extended_arg_count = 0;
5233 b749d2dd7582 Added assert statement. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	4309 int i;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4310
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4311 /* Compute the size of each block and fixup jump args.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4312 Replace block pointer with position in bytecode. */
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4313 start:
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4314 totsize = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4315 for (i = a->a_nblocks - 1; i >= 0; i--) {
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4316 b = a->a_postorder[i];
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4317 bsize = blocksize(b);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4318 b->b_offset = totsize;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4319 totsize += bsize;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 73 diff changeset	4320 }
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4321 extended_arg_count = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4322 for (b = c->u->u_blocks; b != NULL; b = b->b_list) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4323 bsize = b->b_offset;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4324 for (i = 0; i < b->b_iused; i++) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4325 struct instr *instr = &b->b_instr[i];
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4326 /* Relative jumps are computed relative to
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4327 the instruction pointer after fetching
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4328 the jump instruction.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4329 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4330 bsize += instrsize(instr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4331 if (instr->i_jabs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4332 instr->i_oparg = instr->i_target->b_offset;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4333 else if (instr->i_jrel) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4334 int delta = instr->i_target->b_offset - bsize;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4335 instr->i_oparg = delta;
18333 41243cb4ea05 Another "if 0:" hack, this time to complain about otherwise invisible Tim Peters <tim.peters@gmail.com> parents: 18274 diff changeset	4336 }
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4337 else
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4338 continue;
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4339 if (instr->i_oparg > 0xffff)
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4340 extended_arg_count++;
18333 41243cb4ea05 Another "if 0:" hack, this time to complain about otherwise invisible Tim Peters <tim.peters@gmail.com> parents: 18274 diff changeset	4341 }
41243cb4ea05 Another "if 0:" hack, this time to complain about otherwise invisible Tim Peters <tim.peters@gmail.com> parents: 18274 diff changeset	4342 }
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4343
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4344 /* XXX: This is an awful hack that could hurt performance, but
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4345 on the bright side it should work until we come up
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4346 with a better solution.
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4347
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4348 In the meantime, should the goto be dropped in favor
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4349 of a loop?
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4350
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4351 The issue is that in the first loop blocksize() is called
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4352 which calls instrsize() which requires i_oparg be set
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4353 appropriately. There is a bootstrap problem because
35790 f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4354 i_oparg is calculated in the second loop above.
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4355
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4356 So we loop until we stop seeing new EXTENDED_ARGs.
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4357 The only EXTENDED_ARGs that could be popping up are
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4358 ones in jump instructions. So this should converge
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4359 fairly quickly.
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4360 */
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4361 if (last_extended_arg_count != extended_arg_count) {
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4362 last_extended_arg_count = extended_arg_count;
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4363 goto start;
f7b0cbea905b Fix problem handling EXTENDED_ARGs from SF bug # 1333982 Neal Norwitz <nnorwitz@gmail.com> parents: 35789 diff changeset	4364 }
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4365 }
cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4366
16257 fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4367 static PyObject *
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4368 dict_keys_inorder(PyObject *dict, int offset)
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4369 {
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4370 PyObject tuple, k, *v;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36225 diff changeset	4371 Py_ssize_t i, pos = 0, size = PyDict_Size(dict);
16257 fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4372
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4373 tuple = PyTuple_New(size);
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4374 if (tuple == NULL)
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4375 return NULL;
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4376 while (PyDict_Next(dict, &pos, &k, &v)) {
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4377 i = PyInt_AS_LONG(v);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4378 k = PyTuple_GET_ITEM(k, 0);
16257 fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4379 Py_INCREF(k);
17078 7e181eba6b9b Fixup handling of free variables in methods when the class scope also Jeremy Hylton <jeremy@alum.mit.edu> parents: 17076 diff changeset	4380 assert((i - offset) < size);
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4381 assert((i - offset) >= 0);
16257 fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4382 PyTuple_SET_ITEM(tuple, i - offset, k);
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4383 }
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4384 return tuple;
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4385 }
fd8c7203251f PEP 227 implementation Jeremy Hylton <jeremy@alum.mit.edu> parents: 16250 diff changeset	4386
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4387 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4388 compute_code_flags(struct compiler *c)
16421 aa844711463a Move a bunch of definitions that were internal to compile.c to Jeremy Hylton <jeremy@alum.mit.edu> parents: 16408 diff changeset	4389 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4390 PySTEntryObject *ste = c->u->u_ste;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4391 int flags = 0, n;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4392 if (ste->ste_type != ModuleBlock)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4393 flags \|= CO_NEWLOCALS;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4394 if (ste->ste_type == FunctionBlock) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4395 if (!ste->ste_unoptimized)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4396 flags \|= CO_OPTIMIZED;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4397 if (ste->ste_nested)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4398 flags \|= CO_NESTED;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4399 if (ste->ste_generator)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4400 flags \|= CO_GENERATOR;
20867 40a88989d6cb Part of SF bug #478003 possible memory leaks in err handling. Tim Peters <tim.peters@gmail.com> parents: 20517 diff changeset	4401 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4402 if (ste->ste_varargs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4403 flags \|= CO_VARARGS;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4404 if (ste->ste_varkeywords)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4405 flags \|= CO_VARKEYWORDS;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4406 if (ste->ste_generator)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4407 flags \|= CO_GENERATOR;
36729 d6cbc71b8010 Generally inehrit codeflags that are in PyCF_MASK, instead of writing it out Thomas Wouters <thomas@python.org> parents: 36726 diff changeset	4408
d6cbc71b8010 Generally inehrit codeflags that are in PyCF_MASK, instead of writing it out Thomas Wouters <thomas@python.org> parents: 36726 diff changeset	4409 /* (Only) inherit compilerflags in PyCF_MASK */
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4410 flags \|= (c->c_flags->cf_flags & PyCF_MASK);
36729 d6cbc71b8010 Generally inehrit codeflags that are in PyCF_MASK, instead of writing it out Thomas Wouters <thomas@python.org> parents: 36726 diff changeset	4411
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4412 n = PyDict_Size(c->u->u_freevars);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4413 if (n < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4414 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4415 if (n == 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4416 n = PyDict_Size(c->u->u_cellvars);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4417 if (n < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4418 return -1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4419 if (n == 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4420 flags \|= CO_NOFREE;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4421 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4422 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4423
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4424 return flags;
4129 eedaa59341b9 Name mangling, what the heck! Guido van Rossum <guido@python.org> parents: 4003 diff changeset	4425 }
eedaa59341b9 Name mangling, what the heck! Guido van Rossum <guido@python.org> parents: 4003 diff changeset	4426
5373 5880384d7c71 Quickly renamed the remaining files -- this directory is done. Guido van Rossum <guido@python.org> parents: 5287 diff changeset	4427 static PyCodeObject *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4428 makecode(struct compiler c, struct assembler a)
4129 eedaa59341b9 Name mangling, what the heck! Guido van Rossum <guido@python.org> parents: 4003 diff changeset	4429 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4430 PyObject *tmp;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4431 PyCodeObject *co = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4432 PyObject *consts = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4433 PyObject *names = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4434 PyObject *varnames = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4435 PyObject *filename = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4436 PyObject *name = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4437 PyObject *freevars = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4438 PyObject *cellvars = NULL;
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4439 PyObject *bytecode = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4440 int nlocals, flags;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4441
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4442 tmp = dict_keys_inorder(c->u->u_consts, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4443 if (!tmp)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4444 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4445 consts = PySequence_List(tmp); /* optimize_code requires a list */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4446 Py_DECREF(tmp);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4447
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4448 names = dict_keys_inorder(c->u->u_names, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4449 varnames = dict_keys_inorder(c->u->u_varnames, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4450 if (!consts \|\| !names \|\| !varnames)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4451 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4452
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4453 cellvars = dict_keys_inorder(c->u->u_cellvars, 0);
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4454 if (!cellvars)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4455 goto error;
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4456 freevars = dict_keys_inorder(c->u->u_freevars, PyTuple_Size(cellvars));
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4457 if (!freevars)
1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4458 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4459 filename = PyString_FromString(c->c_filename);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4460 if (!filename)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4461 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4462
36766 1daa199b784b Tabify and reflow some long lines. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36729 diff changeset	4463 nlocals = PyDict_Size(c->u->u_varnames);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4464 flags = compute_code_flags(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4465 if (flags < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4466 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4467
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4468 bytecode = optimize_code(a->a_bytecode, consts, names, a->a_lnotab);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4469 if (!bytecode)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4470 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4471
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4472 tmp = PyList_AsTuple(consts); /* PyCode_New requires a tuple */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4473 if (!tmp)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4474 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4475 Py_DECREF(consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4476 consts = tmp;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4477
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4478 co = PyCode_New(c->u->u_argcount, nlocals, stackdepth(c), flags,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4479 bytecode, consts, names, varnames,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4480 freevars, cellvars,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4481 filename, c->u->u_name,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4482 c->u->u_firstlineno,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4483 a->a_lnotab);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4484 error:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4485 Py_XDECREF(consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4486 Py_XDECREF(names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4487 Py_XDECREF(varnames);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4488 Py_XDECREF(filename);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4489 Py_XDECREF(name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4490 Py_XDECREF(freevars);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4491 Py_XDECREF(cellvars);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4492 Py_XDECREF(bytecode);
69 cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4493 return co;
cccd534f2280 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4494 }
5041 c497929b2371 Instead of emitting SET_LINENO instructions, generate a line number Guido van Rossum <guido@python.org> parents: 5011 diff changeset	4495
39363 b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4496
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4497 /* For debugging purposes only */
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4498 #if 0
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4499 static void
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4500 dump_instr(const struct instr *i)
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4501 {
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4502 const char *jrel = i->i_jrel ? "jrel " : "";
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4503 const char *jabs = i->i_jabs ? "jabs " : "";
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4504 char arg[128];
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4505
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4506 *arg = '\0';
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4507 if (i->i_hasarg)
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4508 sprintf(arg, "arg: %d ", i->i_oparg);
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4509
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4510 fprintf(stderr, "line: %d, opcode: %d %s%s%s\n",
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4511 i->i_lineno, i->i_opcode, arg, jabs, jrel);
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4512 }
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4513
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4514 static void
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4515 dump_basicblock(const basicblock *b)
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4516 {
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4517 const char *seen = b->b_seen ? "seen " : "";
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4518 const char *b_return = b->b_return ? "return " : "";
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4519 fprintf(stderr, "used: %d, depth: %d, offset: %d %s%s\n",
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4520 b->b_iused, b->b_startdepth, b->b_offset, seen, b_return);
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4521 if (b->b_instr) {
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4522 int i;
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4523 for (i = 0; i < b->b_iused; i++) {
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4524 fprintf(stderr, " [%02d] ", i);
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4525 dump_instr(b->b_instr + i);
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4526 }
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4527 }
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4528 }
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4529 #endif
b90a8b0395bd Bug #1191458: tracing over for loops now produces a line event Neal Norwitz <nnorwitz@gmail.com> parents: 39317 diff changeset	4530
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4531 static PyCodeObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4532 assemble(struct compiler *c, int addNone)
16781 5a1230de436a Preliminary support for future nested scopes Jeremy Hylton <jeremy@alum.mit.edu> parents: 16763 diff changeset	4533 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4534 basicblock b, entryblock;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4535 struct assembler a;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4536 int i, j, nblocks;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4537 PyCodeObject *co = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4538
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4539 /* Make sure every block that falls off the end returns None.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4540 XXX NEXT_BLOCK() isn't quite right, because if the last
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4541 block ends with a jump or return b_next shouldn't set.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4542 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4543 if (!c->u->u_curblock->b_return) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4544 NEXT_BLOCK(c);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4545 if (addNone)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4546 ADDOP_O(c, LOAD_CONST, Py_None, consts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4547 ADDOP(c, RETURN_VALUE);
16015 c832ef72499d This patch introduces an extra pass to the compiler that generates a Jeremy Hylton <jeremy@alum.mit.edu> parents: 16006 diff changeset	4548 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4549
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4550 nblocks = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4551 entryblock = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4552 for (b = c->u->u_blocks; b != NULL; b = b->b_list) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4553 nblocks++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4554 entryblock = b;
16015 c832ef72499d This patch introduces an extra pass to the compiler that generates a Jeremy Hylton <jeremy@alum.mit.edu> parents: 16006 diff changeset	4555 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4556
39040 ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4557 /* Set firstlineno if it wasn't explicitly set. */
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4558 if (!c->u->u_firstlineno) {
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4559 if (entryblock && entryblock->b_instr)
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4560 c->u->u_firstlineno = entryblock->b_instr->i_lineno;
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4561 else
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4562 c->u->u_firstlineno = 1;
ca3d9a67126b Bug #1512814, Fix incorrect lineno's when code at module scope Neal Norwitz <nnorwitz@gmail.com> parents: 39037 diff changeset	4563 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4564 if (!assemble_init(&a, nblocks, c->u->u_firstlineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4565 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4566 dfs(c, entryblock, &a);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4567
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4568 /* Can't modify the bytecode after computing jump offsets. */
35789 19a37a9f4ef9 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG Neal Norwitz <nnorwitz@gmail.com> parents: 35781 diff changeset	4569 assemble_jump_offsets(&a, c);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4570
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4571 /* Emit code in reverse postorder from dfs. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4572 for (i = a.a_nblocks - 1; i >= 0; i--) {
36225 56ad9f275bec Fix icc warnings: single bit fields should be unsigned, shadowing local variables Neal Norwitz <nnorwitz@gmail.com> parents: 36173 diff changeset	4573 b = a.a_postorder[i];
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4574 for (j = 0; j < b->b_iused; j++)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4575 if (!assemble_emit(&a, &b->b_instr[j]))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4576 goto error;
16394 f700e6b8de1f Undo recent change that banned using import to bind a global, as per Jeremy Hylton <jeremy@alum.mit.edu> parents: 16357 diff changeset	4577 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4578
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4579 if (_PyString_Resize(&a.a_lnotab, a.a_lnotab_off) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4580 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4581 if (_PyString_Resize(&a.a_bytecode, a.a_offset) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4582 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4583
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4584 co = makecode(c, &a);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4585 error:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4586 assemble_free(&a);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35310 diff changeset	4587 return co;
16015 c832ef72499d This patch introduces an extra pass to the compiler that generates a Jeremy Hylton <jeremy@alum.mit.edu> parents: 16006 diff changeset	4588 }

Mercurial > cpython-lru_cache-weakref

annotate Python/compile.c @ 45155:86602b603462 2.5