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

annotate Python/ast.c @ 42006:16cee674a410 legacy-trunk

Use macro version of GET_SIZE to avoid Coverity warning (#150) about a possible error.

author	Neal Norwitz <nnorwitz@gmail.com>
date	Sat, 09 Jun 2007 04:48:22 +0000
parents	c8b0e3b8b456
children	6775ee6d89d3

rev	line source
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2 * This file includes functions to transform a concrete syntax tree (CST) to
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3 * an abstract syntax tree (AST). The main function is PyAST_FromNode().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	4 *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	5 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	6 #include "Python.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	7 #include "Python-ast.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	8 #include "grammar.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	9 #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: 36001 diff changeset	10 #include "pyarena.h"
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	11 #include "ast.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	12 #include "token.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	13 #include "parsetok.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	14 #include "graminit.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	15
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	16 #include <assert.h>
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	17
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	18 /* Data structure used internally */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	19 struct compiling {
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	20 char c_encoding; / source encoding */
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	21 PyArena c_arena; / arena for allocating memeory */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	22 };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	23
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	24 static asdl_seq seq_for_testlist(struct compiling , const node *);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	25 static expr_ty ast_for_expr(struct compiling , const node );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	26 static stmt_ty ast_for_stmt(struct compiling , const node );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	27 static asdl_seq ast_for_suite(struct compiling , const node *);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	28 static asdl_seq ast_for_exprlist(struct compiling , const node *,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	29 expr_context_ty);
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	30 static expr_ty ast_for_testlist(struct compiling , const node );
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	31 static expr_ty ast_for_testlist_gexp(struct compiling , const node );
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	32
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	33 /* Note different signature for ast_for_call */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	34 static expr_ty ast_for_call(struct compiling , const node , expr_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	35
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	36 static PyObject parsenumber(const char );
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	37 static PyObject parsestr(const char s, const char *encoding);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	38 static PyObject parsestrplus(struct compiling , const node *n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	39
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	40 #ifndef LINENO
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	41 #define LINENO(n) ((n)->n_lineno)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	42 #endif
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	43
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	44 static identifier
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	45 new_identifier(const char* n, PyArena *arena) {
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	46 PyObject* id = PyString_InternFromString(n);
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	47 PyArena_AddPyObject(arena, id);
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	48 return id;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	49 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	50
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	51 #define NEW_IDENTIFIER(n) new_identifier(STR(n), c->c_arena)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	52
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	53 /* This routine provides an invalid object for the syntax error.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	54 The outermost routine must unpack this error and create the
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	55 proper object. We do this so that we don't have to pass
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	56 the filename to everything function.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	57
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	58 XXX Maybe we should just pass the filename...
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	59 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	60
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	61 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	62 ast_error(const node n, const char errstr)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	63 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	64 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	65 if (!u)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	66 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	67 PyErr_SetObject(PyExc_SyntaxError, u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	68 Py_DECREF(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	69 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	70 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	71
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	72 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	73 ast_error_finish(const char *filename)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	74 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	75 PyObject type, value, tback, errstr, loc, tmp;
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36224 diff changeset	76 long lineno;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	77
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	78 assert(PyErr_Occurred());
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	79 if (!PyErr_ExceptionMatches(PyExc_SyntaxError))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	80 return;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	81
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	82 PyErr_Fetch(&type, &value, &tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	83 errstr = PyTuple_GetItem(value, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	84 if (!errstr)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	85 return;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	86 Py_INCREF(errstr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	87 lineno = PyInt_AsLong(PyTuple_GetItem(value, 1));
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	88 if (lineno == -1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	89 Py_DECREF(errstr);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	90 return;
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	91 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	92 Py_DECREF(value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	93
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	94 loc = PyErr_ProgramText(filename, lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	95 if (!loc) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	96 Py_INCREF(Py_None);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	97 loc = Py_None;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	98 }
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36224 diff changeset	99 tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	100 Py_DECREF(loc);
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	101 if (!tmp) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	102 Py_DECREF(errstr);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	103 return;
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	104 }
38406 8f7c7aeac3a5 Replace Py_BuildValue("OO") by PyTuple_Pack. Georg Brandl <georg@python.org> parents: 38218 diff changeset	105 value = PyTuple_Pack(2, errstr, tmp);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	106 Py_DECREF(errstr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	107 Py_DECREF(tmp);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	108 if (!value)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	109 return;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	110 PyErr_Restore(type, value, tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	111 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	112
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	113 /* num_stmts() returns number of contained statements.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	114
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	115 Use this routine to determine how big a sequence is needed for
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	116 the statements in a parse tree. Its raison d'etre is this bit of
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	117 grammar:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	118
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	119 stmt: simple_stmt \| compound_stmt
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	120 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	121
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	122 A simple_stmt can contain multiple small_stmt elements joined
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	123 by semicolons. If the arg is a simple_stmt, the number of
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	124 small_stmt elements is returned.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	125 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	126
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	127 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	128 num_stmts(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	129 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	130 int i, l;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	131 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	132
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	133 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	134 case single_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	135 if (TYPE(CHILD(n, 0)) == NEWLINE)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	136 return 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	137 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	138 return num_stmts(CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	139 case file_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	140 l = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	141 for (i = 0; i < NCH(n); i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	142 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	143 if (TYPE(ch) == stmt)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	144 l += num_stmts(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	145 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	146 return l;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	147 case stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	148 return num_stmts(CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	149 case compound_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	150 return 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	151 case simple_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	152 return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	153 case suite:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	154 if (NCH(n) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	155 return num_stmts(CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	156 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	157 l = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	158 for (i = 2; i < (NCH(n) - 1); i++)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	159 l += num_stmts(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	160 return l;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	161 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	162 default: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	163 char buf[128];
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	164
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	165 sprintf(buf, "Non-statement found: %d %d\n",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	166 TYPE(n), NCH(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	167 Py_FatalError(buf);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	168 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	169 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	170 assert(0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	171 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	172 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	173
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	174 /* Transform the CST rooted at node * to the appropriate AST
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	175 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	176
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	177 mod_ty
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	178 PyAST_FromNode(const node n, PyCompilerFlags flags, const char *filename,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	179 PyArena *arena)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	180 {
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	181 int i, j, k, num;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	182 asdl_seq *stmts = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	183 stmt_ty s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	184 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	185 struct compiling c;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	186
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	187 if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	188 c.c_encoding = "utf-8";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	189 if (TYPE(n) == encoding_decl) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	190 ast_error(n, "encoding declaration in Unicode string");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	191 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	192 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	193 } else if (TYPE(n) == encoding_decl) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	194 c.c_encoding = STR(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	195 n = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	196 } else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	197 c.c_encoding = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	198 }
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	199 c.c_arena = arena;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	200
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	201 k = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	202 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	203 case file_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	204 stmts = asdl_seq_new(num_stmts(n), arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	205 if (!stmts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	206 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	207 for (i = 0; i < NCH(n) - 1; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	208 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	209 if (TYPE(ch) == NEWLINE)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	210 continue;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	211 REQ(ch, stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	212 num = num_stmts(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	213 if (num == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	214 s = ast_for_stmt(&c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	215 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	216 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	217 asdl_seq_SET(stmts, k++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	218 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	219 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	220 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	221 REQ(ch, simple_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	222 for (j = 0; j < num; j++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	223 s = ast_for_stmt(&c, CHILD(ch, j * 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	224 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	225 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	226 asdl_seq_SET(stmts, k++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	227 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	228 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	229 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	230 return Module(stmts, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	231 case eval_input: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	232 expr_ty testlist_ast;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	233
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	234 /* XXX Why not gen_for here? */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	235 testlist_ast = ast_for_testlist(&c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	236 if (!testlist_ast)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	237 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	238 return Expression(testlist_ast, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	239 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	240 case single_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	241 if (TYPE(CHILD(n, 0)) == NEWLINE) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	242 stmts = asdl_seq_new(1, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	243 if (!stmts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	244 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	245 asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	246 arena));
41579 7a4f174df844 Handle a couple of uncaught errors. This should be backported Neal Norwitz <nnorwitz@gmail.com> parents: 41578 diff changeset	247 if (!asdl_seq_GET(stmts, 0))
7a4f174df844 Handle a couple of uncaught errors. This should be backported Neal Norwitz <nnorwitz@gmail.com> parents: 41578 diff changeset	248 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	249 return Interactive(stmts, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	250 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	251 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	252 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	253 num = num_stmts(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	254 stmts = asdl_seq_new(num, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	255 if (!stmts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	256 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	257 if (num == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	258 s = ast_for_stmt(&c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	259 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	260 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	261 asdl_seq_SET(stmts, 0, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	262 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	263 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	264 /* Only a simple_stmt can contain multiple statements. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	265 REQ(n, simple_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	266 for (i = 0; i < NCH(n); i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	267 if (TYPE(CHILD(n, i)) == NEWLINE)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	268 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	269 s = ast_for_stmt(&c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	270 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	271 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	272 asdl_seq_SET(stmts, i / 2, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	273 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	274 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	275
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	276 return Interactive(stmts, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	277 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	278 default:
41578 bc6a0fe32351 Actually raise an exception before calling ast_error_finish. Georg Brandl <georg@python.org> parents: 41215 diff changeset	279 PyErr_Format(PyExc_SystemError,
bc6a0fe32351 Actually raise an exception before calling ast_error_finish. Georg Brandl <georg@python.org> parents: 41215 diff changeset	280 "invalid node %d for PyAST_FromNode", TYPE(n));
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	281 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	282 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	283 error:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	284 ast_error_finish(filename);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	285 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	286 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	287
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	288 /* Return the AST repr. of the operator represented as syntax (\|, ^, etc.)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	289 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	290
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	291 static operator_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	292 get_operator(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	293 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	294 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	295 case VBAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	296 return BitOr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	297 case CIRCUMFLEX:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	298 return BitXor;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	299 case AMPER:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	300 return BitAnd;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	301 case LEFTSHIFT:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	302 return LShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	303 case RIGHTSHIFT:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	304 return RShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	305 case PLUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	306 return Add;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	307 case MINUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	308 return Sub;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	309 case STAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	310 return Mult;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	311 case SLASH:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	312 return Div;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	313 case DOUBLESLASH:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	314 return FloorDiv;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	315 case PERCENT:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	316 return Mod;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	317 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	318 return (operator_ty)0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	319 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	320 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	321
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	322 /* Set the context ctx for expr_ty e, recursively traversing e.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	323
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	324 Only sets context for expr kinds that "can appear in assignment context"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	325 (according to ../Parser/Python.asdl). For other expr kinds, it sets
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	326 an appropriate syntax error and returns false.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	327 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	328
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	329 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	330 set_context(expr_ty e, expr_context_ty ctx, const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	331 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	332 asdl_seq *s = NULL;
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	333 /* If a particular expression type can't be used for assign / delete,
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	334 set expr_name to its name and an error message will be generated.
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	335 */
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	336 const char* expr_name = NULL;
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	337
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	338 /* The ast defines augmented store and load contexts, but the
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	339 implementation here doesn't actually use them. The code may be
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	340 a little more complex than necessary as a result. It also means
39037 9f70f6ba7b69 Fix AST compiler bug #1501934: incorrect LOAD/STORE_GLOBAL generation. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39034 diff changeset	341 that expressions in an augmented assignment have a Store context.
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	342 Consider restructuring so that augmented assignment uses
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	343 set_context(), too.
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	344 */
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	345 assert(ctx != AugStore && ctx != AugLoad);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	346
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	347 switch (e->kind) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	348 case Attribute_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	349 if (ctx == Store &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	350 !strcmp(PyString_AS_STRING(e->v.Attribute.attr), "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	351 return ast_error(n, "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	352 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	353 e->v.Attribute.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	354 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	355 case Subscript_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	356 e->v.Subscript.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	357 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	358 case Name_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	359 if (ctx == Store &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	360 !strcmp(PyString_AS_STRING(e->v.Name.id), "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	361 return ast_error(n, "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	362 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	363 e->v.Name.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	364 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	365 case List_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	366 e->v.List.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	367 s = e->v.List.elts;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	368 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	369 case Tuple_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	370 if (asdl_seq_LEN(e->v.Tuple.elts) == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	371 return ast_error(n, "can't assign to ()");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	372 e->v.Tuple.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	373 s = e->v.Tuple.elts;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	374 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	375 case Lambda_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	376 expr_name = "lambda";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	377 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	378 case Call_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	379 expr_name = "function call";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	380 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	381 case BoolOp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	382 case BinOp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	383 case UnaryOp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	384 expr_name = "operator";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	385 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	386 case GeneratorExp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	387 expr_name = "generator expression";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	388 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	389 case Yield_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	390 expr_name = "yield expression";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	391 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	392 case ListComp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	393 expr_name = "list comprehension";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	394 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	395 case Dict_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	396 case Num_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	397 case Str_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	398 expr_name = "literal";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	399 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	400 case Compare_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	401 expr_name = "comparison";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	402 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	403 case Repr_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	404 expr_name = "repr";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	405 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	406 case IfExp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	407 expr_name = "conditional expression";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	408 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	409 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	410 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	411 "unexpected expression in assignment %d (line %d)",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	412 e->kind, e->lineno);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	413 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	414 }
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	415 /* Check for error string set by switch */
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	416 if (expr_name) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	417 char buf[300];
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	418 PyOS_snprintf(buf, sizeof(buf),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	419 "can't %s %s",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	420 ctx == Store ? "assign to" : "delete",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	421 expr_name);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	422 return ast_error(n, buf);
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	423 }
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	424
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	425 /* If the LHS is a list or tuple, we need to set the assignment
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	426 context for all the contained elements.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	427 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	428 if (s) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	429 int i;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	430
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	431 for (i = 0; i < asdl_seq_LEN(s); i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	432 if (!set_context((expr_ty)asdl_seq_GET(s, i), ctx, n))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	433 return 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	434 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	435 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	436 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	437 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	438
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	439 static operator_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	440 ast_for_augassign(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	441 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	442 REQ(n, augassign);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	443 n = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	444 switch (STR(n)[0]) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	445 case '+':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	446 return Add;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	447 case '-':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	448 return Sub;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	449 case '/':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	450 if (STR(n)[1] == '/')
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	451 return FloorDiv;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	452 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	453 return Div;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	454 case '%':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	455 return Mod;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	456 case '<':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	457 return LShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	458 case '>':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	459 return RShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	460 case '&':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	461 return BitAnd;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	462 case '^':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	463 return BitXor;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	464 case '\|':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	465 return BitOr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	466 case '*':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	467 if (STR(n)[1] == '*')
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	468 return Pow;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	469 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	470 return Mult;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	471 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	472 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	473 return (operator_ty)0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	474 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	475 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	476
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	477 static cmpop_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	478 ast_for_comp_op(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	479 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	480 /* comp_op: '<'\|'>'\|'=='\|'>='\|'<='\|'<>'\|'!='\|'in'\|'not' 'in'\|'is'
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	481 \|'is' 'not'
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	482 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	483 REQ(n, comp_op);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	484 if (NCH(n) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	485 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	486 switch (TYPE(n)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	487 case LESS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	488 return Lt;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	489 case GREATER:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	490 return Gt;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	491 case EQEQUAL: /* == */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	492 return Eq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	493 case LESSEQUAL:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	494 return LtE;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	495 case GREATEREQUAL:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	496 return GtE;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	497 case NOTEQUAL:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	498 return NotEq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	499 case NAME:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	500 if (strcmp(STR(n), "in") == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	501 return In;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	502 if (strcmp(STR(n), "is") == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	503 return Is;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	504 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	505 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	506 STR(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	507 return (cmpop_ty)0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	508 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	509 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	510 else if (NCH(n) == 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	511 /* handle "not in" and "is not" */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	512 switch (TYPE(CHILD(n, 0))) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	513 case NAME:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	514 if (strcmp(STR(CHILD(n, 1)), "in") == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	515 return NotIn;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	516 if (strcmp(STR(CHILD(n, 0)), "is") == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	517 return IsNot;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	518 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	519 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	520 STR(CHILD(n, 0)), STR(CHILD(n, 1)));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	521 return (cmpop_ty)0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	522 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	523 }
35870 f531c05cd240 Convert all internal errors from Exception to SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 35868 diff changeset	524 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children",
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	525 NCH(n));
37604 c732f66c913f Convert 0 to their respective enum types. Convert Martin v. Löwis <martin@v.loewis.de> parents: 37597 diff changeset	526 return (cmpop_ty)0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	527 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	528
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	529 static asdl_seq *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	530 seq_for_testlist(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	531 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	532 /* testlist: test (',' test)* [','] */
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35748 diff changeset	533 asdl_seq *seq;
d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35748 diff changeset	534 expr_ty expression;
d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35748 diff changeset	535 int i;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	536 assert(TYPE(n) == testlist \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	537 TYPE(n) == listmaker \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	538 TYPE(n) == testlist_gexp \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	539 TYPE(n) == testlist_safe \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	540 TYPE(n) == testlist1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	541
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	542 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	543 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	544 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	545
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	546 for (i = 0; i < NCH(n); i += 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	547 assert(TYPE(CHILD(n, i)) == test \|\| TYPE(CHILD(n, i)) == old_test);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	548
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	549 expression = ast_for_expr(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	550 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	551 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	552
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	553 assert(i / 2 < seq->size);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	554 asdl_seq_SET(seq, i / 2, expression);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	555 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	556 return seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	557 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	558
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	559 static expr_ty
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	560 compiler_complex_args(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	561 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	562 int i, len = (NCH(n) + 1) / 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	563 expr_ty result;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	564 asdl_seq *args = asdl_seq_new(len, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	565 if (!args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	566 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	567
39872 b8cb7201379c Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)). Neal Norwitz <nnorwitz@gmail.com> parents: 39779 diff changeset	568 /* fpdef: NAME \| '(' fplist ')'
b8cb7201379c Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)). Neal Norwitz <nnorwitz@gmail.com> parents: 39779 diff changeset	569 fplist: fpdef (',' fpdef)* [',']
b8cb7201379c Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)). Neal Norwitz <nnorwitz@gmail.com> parents: 39779 diff changeset	570 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	571 REQ(n, fplist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	572 for (i = 0; i < len; i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	573 const node fpdef_node = CHILD(n, 2i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	574 const node *child;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	575 expr_ty arg;
39872 b8cb7201379c Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)). Neal Norwitz <nnorwitz@gmail.com> parents: 39779 diff changeset	576 set_name:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	577 /* fpdef_node is either a NAME or an fplist */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	578 child = CHILD(fpdef_node, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	579 if (TYPE(child) == NAME) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	580 if (!strcmp(STR(child), "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	581 ast_error(child, "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	582 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	583 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	584 arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	585 child->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	586 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	587 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	588 assert(TYPE(fpdef_node) == fpdef);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	589 /* fpdef_node[0] is not a name, so it must be '(', get CHILD[1] */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	590 child = CHILD(fpdef_node, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	591 assert(TYPE(child) == fplist);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	592 /* NCH == 1 means we have (x), we need to elide the extra parens */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	593 if (NCH(child) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	594 fpdef_node = CHILD(child, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	595 assert(TYPE(fpdef_node) == fpdef);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	596 goto set_name;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	597 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	598 arg = compiler_complex_args(c, child);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	599 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	600 asdl_seq_SET(args, i, arg);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	601 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	602
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	603 result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena);
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	604 if (!set_context(result, Store, n))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	605 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	606 return result;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	607 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	608
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	609
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	610 /* Create AST for argument list. */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	611
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	612 static arguments_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	613 ast_for_arguments(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	614 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	615 /* parameters: '(' [varargslist] ')'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	616 varargslist: (fpdef ['=' test] ',')* ('' NAME [',' '*' NAME]
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	617 \| '*' NAME) \| fpdef ['=' test] (',' fpdef ['=' test]) [',']
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	618 */
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	619 int i, j, k, n_args = 0, n_defaults = 0, found_default = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	620 asdl_seq args, defaults;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	621 identifier vararg = NULL, kwarg = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	622 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	623
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	624 if (TYPE(n) == parameters) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	625 if (NCH(n) == 2) /* () as argument list */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	626 return arguments(NULL, NULL, NULL, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	627 n = CHILD(n, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	628 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	629 REQ(n, varargslist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	630
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	631 /* first count the number of normal args & defaults */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	632 for (i = 0; i < NCH(n); i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	633 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	634 if (TYPE(ch) == fpdef)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	635 n_args++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	636 if (TYPE(ch) == EQUAL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	637 n_defaults++;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	638 }
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	639 args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	640 if (!args && n_args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	641 return NULL; /* Don't need to goto error; no objects allocated */
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	642 defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	643 if (!defaults && n_defaults)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	644 return NULL; /* Don't need to goto error; no objects allocated */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	645
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	646 /* fpdef: NAME \| '(' fplist ')'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	647 fplist: fpdef (',' fpdef)* [',']
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	648 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	649 i = 0;
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	650 j = 0; /* index for defaults */
45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	651 k = 0; /* index for args */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	652 while (i < NCH(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	653 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	654 switch (TYPE(ch)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	655 case fpdef:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	656 handle_fpdef:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	657 /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	658 anything other than EQUAL or a comma? */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	659 /* XXX Should NCH(n) check be made a separate check? */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	660 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	661 expr_ty expression = ast_for_expr(c, CHILD(n, i + 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	662 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	663 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	664 assert(defaults != NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	665 asdl_seq_SET(defaults, j++, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	666 i += 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	667 found_default = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	668 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	669 else if (found_default) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	670 ast_error(n,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	671 "non-default argument follows default argument");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	672 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	673 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	674 if (NCH(ch) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	675 ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	676 /* def foo((x)): is not complex, special case. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	677 if (NCH(ch) != 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	678 /* We have complex arguments, setup for unpacking. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	679 asdl_seq_SET(args, k++, compiler_complex_args(c, ch));
41579 7a4f174df844 Handle a couple of uncaught errors. This should be backported Neal Norwitz <nnorwitz@gmail.com> parents: 41578 diff changeset	680 if (!asdl_seq_GET(args, k-1))
7a4f174df844 Handle a couple of uncaught errors. This should be backported Neal Norwitz <nnorwitz@gmail.com> parents: 41578 diff changeset	681 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	682 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	683 /* def foo((x)): setup for checking NAME below. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	684 /* Loop because there can be many parens and tuple
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	685 unpacking mixed in. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	686 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	687 assert(TYPE(ch) == fpdef);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	688 goto handle_fpdef;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	689 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	690 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	691 if (TYPE(CHILD(ch, 0)) == NAME) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	692 expr_ty name;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	693 if (!strcmp(STR(CHILD(ch, 0)), "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	694 ast_error(CHILD(ch, 0), "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	695 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	696 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	697 name = Name(NEW_IDENTIFIER(CHILD(ch, 0)),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	698 Param, LINENO(ch), ch->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	699 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	700 if (!name)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	701 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	702 asdl_seq_SET(args, k++, name);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	703
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	704 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	705 i += 2; /* the name and the comma */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	706 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	707 case STAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	708 if (!strcmp(STR(CHILD(n, i+1)), "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	709 ast_error(CHILD(n, i+1), "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	710 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	711 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	712 vararg = NEW_IDENTIFIER(CHILD(n, i+1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	713 i += 3;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	714 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	715 case DOUBLESTAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	716 if (!strcmp(STR(CHILD(n, i+1)), "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	717 ast_error(CHILD(n, i+1), "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	718 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	719 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	720 kwarg = NEW_IDENTIFIER(CHILD(n, i+1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	721 i += 3;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	722 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	723 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	724 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	725 "unexpected node in varargslist: %d @ %d",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	726 TYPE(ch), i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	727 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	728 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	729 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	730
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	731 return arguments(args, vararg, kwarg, defaults, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	732
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	733 error:
35873 76ed7fdc9d85 Fix a whole bunch of potential memory leaks (and some real ones too) Neal Norwitz <nnorwitz@gmail.com> parents: 35870 diff changeset	734 Py_XDECREF(vararg);
76ed7fdc9d85 Fix a whole bunch of potential memory leaks (and some real ones too) Neal Norwitz <nnorwitz@gmail.com> parents: 35870 diff changeset	735 Py_XDECREF(kwarg);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	736 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	737 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	738
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	739 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	740 ast_for_dotted_name(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	741 {
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	742 expr_ty e;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	743 identifier id;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	744 int lineno, col_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	745 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	746
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	747 REQ(n, dotted_name);
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	748
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	749 lineno = LINENO(n);
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	750 col_offset = n->n_col_offset;
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	751
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	752 id = NEW_IDENTIFIER(CHILD(n, 0));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	753 if (!id)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	754 return NULL;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	755 e = Name(id, Load, lineno, col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	756 if (!e)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	757 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	758
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	759 for (i = 2; i < NCH(n); i+=2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	760 id = NEW_IDENTIFIER(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	761 if (!id)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	762 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	763 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	764 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	765 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	766 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	767
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	768 return e;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	769 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	770
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	771 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	772 ast_for_decorator(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	773 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	774 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	775 expr_ty d = NULL;
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	776 expr_ty name_expr;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	777
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	778 REQ(n, decorator);
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	779 REQ(CHILD(n, 0), AT);
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	780 REQ(RCHILD(n, -1), NEWLINE);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	781
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	782 name_expr = ast_for_dotted_name(c, CHILD(n, 1));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	783 if (!name_expr)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	784 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	785
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	786 if (NCH(n) == 3) { /* No arguments */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	787 d = name_expr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	788 name_expr = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	789 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	790 else if (NCH(n) == 5) { /* Call with no arguments */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	791 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	792 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	793 if (!d)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	794 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	795 name_expr = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	796 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	797 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	798 d = ast_for_call(c, CHILD(n, 3), name_expr);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	799 if (!d)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	800 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	801 name_expr = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	802 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	803
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	804 return d;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	805 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	806
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	807 static asdl_seq*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	808 ast_for_decorators(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	809 {
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	810 asdl_seq* decorator_seq;
35873 76ed7fdc9d85 Fix a whole bunch of potential memory leaks (and some real ones too) Neal Norwitz <nnorwitz@gmail.com> parents: 35870 diff changeset	811 expr_ty d;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	812 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	813
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	814 REQ(n, decorators);
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	815 decorator_seq = asdl_seq_new(NCH(n), c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	816 if (!decorator_seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	817 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	818
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	819 for (i = 0; i < NCH(n); i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	820 d = ast_for_decorator(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	821 if (!d)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	822 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	823 asdl_seq_SET(decorator_seq, i, d);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	824 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	825 return decorator_seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	826 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	827
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	828 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	829 ast_for_funcdef(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	830 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	831 /* funcdef: 'def' [decorators] NAME parameters ':' suite */
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	832 identifier name;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	833 arguments_ty args;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	834 asdl_seq *body;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	835 asdl_seq *decorator_seq = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	836 int name_i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	837
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	838 REQ(n, funcdef);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	839
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	840 if (NCH(n) == 6) { /* decorators are present */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	841 decorator_seq = ast_for_decorators(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	842 if (!decorator_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	843 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	844 name_i = 2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	845 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	846 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	847 name_i = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	848 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	849
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	850 name = NEW_IDENTIFIER(CHILD(n, name_i));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	851 if (!name)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	852 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	853 else if (!strcmp(STR(CHILD(n, name_i)), "None")) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	854 ast_error(CHILD(n, name_i), "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	855 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	856 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	857 args = ast_for_arguments(c, CHILD(n, name_i + 1));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	858 if (!args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	859 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	860 body = ast_for_suite(c, CHILD(n, name_i + 3));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	861 if (!body)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	862 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	863
37453 16a64e394602 Add lineno, col_offset to excephandler to enable future fix for Jeremy Hylton <jeremy@alum.mit.edu> parents: 37235 diff changeset	864 return FunctionDef(name, args, body, decorator_seq, LINENO(n),
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	865 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	866 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	867
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	868 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	869 ast_for_lambdef(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	870 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	871 /* lambdef: 'lambda' [varargslist] ':' test */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	872 arguments_ty args;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	873 expr_ty expression;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	874
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	875 if (NCH(n) == 3) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	876 args = arguments(NULL, NULL, NULL, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	877 if (!args)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	878 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	879 expression = ast_for_expr(c, CHILD(n, 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	880 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	881 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	882 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	883 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	884 args = ast_for_arguments(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	885 if (!args)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	886 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	887 expression = ast_for_expr(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	888 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	889 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	890 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	891
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	892 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	893 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	894
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	895 static expr_ty
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	896 ast_for_ifexpr(struct compiling c, const node n)
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	897 {
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	898 /* test: or_test 'if' or_test 'else' test */
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	899 expr_ty expression, body, orelse;
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	900
36676 67c74efad8c2 Fix old not-reading-pep-308-right artifact. Thomas Wouters <thomas@python.org> parents: 36670 diff changeset	901 assert(NCH(n) == 5);
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	902 body = ast_for_expr(c, CHILD(n, 0));
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	903 if (!body)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	904 return NULL;
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	905 expression = ast_for_expr(c, CHILD(n, 2));
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	906 if (!expression)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	907 return NULL;
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	908 orelse = ast_for_expr(c, CHILD(n, 4));
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	909 if (!orelse)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	910 return NULL;
37453 16a64e394602 Add lineno, col_offset to excephandler to enable future fix for Jeremy Hylton <jeremy@alum.mit.edu> parents: 37235 diff changeset	911 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	912 c->c_arena);
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	913 }
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	914
39755 c591d9954fb3 Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces. Neal Norwitz <nnorwitz@gmail.com> parents: 39753 diff changeset	915 /* XXX(nnorwitz): the listcomp and genexpr code should be refactored
c591d9954fb3 Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces. Neal Norwitz <nnorwitz@gmail.com> parents: 39753 diff changeset	916 so there is only a single version. Possibly for loops can also re-use
c591d9954fb3 Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces. Neal Norwitz <nnorwitz@gmail.com> parents: 39753 diff changeset	917 the code.
c591d9954fb3 Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces. Neal Norwitz <nnorwitz@gmail.com> parents: 39753 diff changeset	918 */
c591d9954fb3 Add a comment about some refactoring. (There's probably more that should be done.) I will reformat this file in the next checkin due to the inconsistent tabs/spaces. Neal Norwitz <nnorwitz@gmail.com> parents: 39753 diff changeset	919
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	920 /* Count the number of 'for' loop in a list comprehension.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	921
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	922 Helper for ast_for_listcomp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	923 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	924
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	925 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	926 count_list_fors(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	927 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	928 int n_fors = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	929 node *ch = CHILD(n, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	930
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	931 count_list_for:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	932 n_fors++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	933 REQ(ch, list_for);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	934 if (NCH(ch) == 5)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	935 ch = CHILD(ch, 4);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	936 else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	937 return n_fors;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	938 count_list_iter:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	939 REQ(ch, list_iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	940 ch = CHILD(ch, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	941 if (TYPE(ch) == list_for)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	942 goto count_list_for;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	943 else if (TYPE(ch) == list_if) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	944 if (NCH(ch) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	945 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	946 goto count_list_iter;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	947 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	948 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	949 return n_fors;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	950 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	951
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	952 /* Should never be reached */
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	953 PyErr_SetString(PyExc_SystemError, "logic error in count_list_fors");
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	954 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	955 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	956
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	957 /* Count the number of 'if' statements in a list comprehension.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	958
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	959 Helper for ast_for_listcomp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	960 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	961
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	962 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	963 count_list_ifs(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	964 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	965 int n_ifs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	966
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	967 count_list_iter:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	968 REQ(n, list_iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	969 if (TYPE(CHILD(n, 0)) == list_for)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	970 return n_ifs;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	971 n = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	972 REQ(n, list_if);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	973 n_ifs++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	974 if (NCH(n) == 2)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	975 return n_ifs;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	976 n = CHILD(n, 2);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	977 goto count_list_iter;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	978 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	979
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	980 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	981 ast_for_listcomp(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	982 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	983 /* listmaker: test ( list_for \| (',' test)* [','] )
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	984 list_for: 'for' exprlist 'in' testlist_safe [list_iter]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	985 list_iter: list_for \| list_if
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	986 list_if: 'if' test [list_iter]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	987 testlist_safe: test [(',' test)+ [',']]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	988 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	989 expr_ty elt;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	990 asdl_seq *listcomps;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	991 int i, n_fors;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	992 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	993
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	994 REQ(n, listmaker);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	995 assert(NCH(n) > 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	996
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	997 elt = ast_for_expr(c, CHILD(n, 0));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	998 if (!elt)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	999 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1000
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1001 n_fors = count_list_fors(n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1002 if (n_fors == -1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1003 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1004
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1005 listcomps = asdl_seq_new(n_fors, c->c_arena);
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1006 if (!listcomps)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1007 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1008
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1009 ch = CHILD(n, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1010 for (i = 0; i < n_fors; i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1011 comprehension_ty lc;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1012 asdl_seq *t;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1013 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1014 node *for_ch;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1015
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1016 REQ(ch, list_for);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1017
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1018 for_ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1019 t = ast_for_exprlist(c, for_ch, Store);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1020 if (!t)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1021 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1022 expression = ast_for_testlist(c, CHILD(ch, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1023 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1024 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1025
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1026 /* Check the # of children rather than the length of t, since
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1027 [x for x, in ... ] has 1 element in t, but still requires a Tuple.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1028 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1029 if (NCH(for_ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1030 lc = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, NULL,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1031 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1032 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1033 lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1034 c->c_arena),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1035 expression, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1036 if (!lc)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1037 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1038
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1039 if (NCH(ch) == 5) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1040 int j, n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1041 asdl_seq *ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1042 expr_ty list_for_expr;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1043
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1044 ch = CHILD(ch, 4);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1045 n_ifs = count_list_ifs(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1046 if (n_ifs == -1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1047 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1048
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1049 ifs = asdl_seq_new(n_ifs, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1050 if (!ifs)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1051 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1052
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1053 for (j = 0; j < n_ifs; j++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1054 REQ(ch, list_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1055 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1056 REQ(ch, list_if);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1057
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1058 list_for_expr = ast_for_expr(c, CHILD(ch, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1059 if (!list_for_expr)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1060 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1061
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1062 asdl_seq_SET(ifs, j, list_for_expr);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1063 if (NCH(ch) == 3)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1064 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1065 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1066 /* on exit, must guarantee that ch is a list_for */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1067 if (TYPE(ch) == list_iter)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1068 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1069 lc->ifs = ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1070 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1071 asdl_seq_SET(listcomps, i, lc);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1072 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1073
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	1074 return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1075 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1076
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1077 /* Count the number of 'for' loops in a generator expression.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1078
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1079 Helper for ast_for_genexp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1080 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1081
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1082 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1083 count_gen_fors(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1084 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1085 int n_fors = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1086 node *ch = CHILD(n, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1087
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1088 count_gen_for:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1089 n_fors++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1090 REQ(ch, gen_for);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1091 if (NCH(ch) == 5)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1092 ch = CHILD(ch, 4);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1093 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1094 return n_fors;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1095 count_gen_iter:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1096 REQ(ch, gen_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1097 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1098 if (TYPE(ch) == gen_for)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1099 goto count_gen_for;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1100 else if (TYPE(ch) == gen_if) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1101 if (NCH(ch) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1102 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1103 goto count_gen_iter;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1104 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1105 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1106 return n_fors;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1107 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1108
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1109 /* Should never be reached */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1110 PyErr_SetString(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1111 "logic error in count_gen_fors");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1112 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1113 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1114
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1115 /* Count the number of 'if' statements in a generator expression.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1116
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1117 Helper for ast_for_genexp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1118 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1119
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1120 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1121 count_gen_ifs(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1122 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1123 int n_ifs = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1124
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1125 while (1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1126 REQ(n, gen_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1127 if (TYPE(CHILD(n, 0)) == gen_for)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1128 return n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1129 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1130 REQ(n, gen_if);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1131 n_ifs++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1132 if (NCH(n) == 2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1133 return n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1134 n = CHILD(n, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1135 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1136 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1137
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	1138 /* TODO(jhylton): Combine with list comprehension code? */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1139 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1140 ast_for_genexp(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1141 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1142 /* testlist_gexp: test ( gen_for \| (',' test)* [','] )
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1143 argument: [test '='] test [gen_for] # Really [keyword '='] test */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1144 expr_ty elt;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1145 asdl_seq *genexps;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1146 int i, n_fors;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1147 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1148
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1149 assert(TYPE(n) == (testlist_gexp) \|\| TYPE(n) == (argument));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1150 assert(NCH(n) > 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1151
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1152 elt = ast_for_expr(c, CHILD(n, 0));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1153 if (!elt)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1154 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1155
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1156 n_fors = count_gen_fors(n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1157 if (n_fors == -1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1158 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1159
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1160 genexps = asdl_seq_new(n_fors, c->c_arena);
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1161 if (!genexps)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1162 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1163
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1164 ch = CHILD(n, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1165 for (i = 0; i < n_fors; i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1166 comprehension_ty ge;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1167 asdl_seq *t;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1168 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1169 node *for_ch;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1170
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1171 REQ(ch, gen_for);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1172
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1173 for_ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1174 t = ast_for_exprlist(c, for_ch, Store);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1175 if (!t)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1176 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1177 expression = ast_for_expr(c, CHILD(ch, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1178 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1179 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1180
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1181 /* Check the # of children rather than the length of t, since
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1182 (x for x, in ...) has 1 element in t, but still requires a Tuple. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1183 if (NCH(for_ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1184 ge = comprehension((expr_ty)asdl_seq_GET(t, 0), expression,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1185 NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1186 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1187 ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1188 c->c_arena),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1189 expression, NULL, c->c_arena);
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1190
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1191 if (!ge)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1192 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1193
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1194 if (NCH(ch) == 5) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1195 int j, n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1196 asdl_seq *ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1197
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1198 ch = CHILD(ch, 4);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1199 n_ifs = count_gen_ifs(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1200 if (n_ifs == -1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1201 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1202
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1203 ifs = asdl_seq_new(n_ifs, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1204 if (!ifs)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1205 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1206
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1207 for (j = 0; j < n_ifs; j++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1208 REQ(ch, gen_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1209 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1210 REQ(ch, gen_if);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1211
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1212 expression = ast_for_expr(c, CHILD(ch, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1213 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1214 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1215 asdl_seq_SET(ifs, j, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1216 if (NCH(ch) == 3)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1217 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1218 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1219 /* on exit, must guarantee that ch is a gen_for */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1220 if (TYPE(ch) == gen_iter)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1221 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1222 ge->ifs = ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1223 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1224 asdl_seq_SET(genexps, i, ge);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1225 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1226
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	1227 return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1228 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1229
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1230 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1231 ast_for_atom(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1232 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1233 /* atom: '(' [yield_expr\|testlist_gexp] ')' \| '[' [listmaker] ']'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1234 \| '{' [dictmaker] '}' \| '`' testlist '`' \| NAME \| NUMBER \| STRING+
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1235 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1236 node *ch = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1237
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1238 switch (TYPE(ch)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1239 case NAME:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1240 /* All names start in Load context, but may later be
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1241 changed. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1242 return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1243 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1244 case STRING: {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1245 PyObject *str = parsestrplus(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1246 if (!str)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1247 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1248
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1249 PyArena_AddPyObject(c->c_arena, str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1250 return Str(str, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1251 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1252 case NUMBER: {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1253 PyObject *pynum = parsenumber(STR(ch));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1254 if (!pynum)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1255 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1256
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1257 PyArena_AddPyObject(c->c_arena, pynum);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1258 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1259 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1260 case LPAR: /* some parenthesized expressions */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1261 ch = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1262
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1263 if (TYPE(ch) == RPAR)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1264 return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1265
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1266 if (TYPE(ch) == yield_expr)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1267 return ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1268
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1269 if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1270 return ast_for_genexp(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1271
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1272 return ast_for_testlist_gexp(c, ch);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1273 case LSQB: /* list (or list comprehension) */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1274 ch = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1275
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1276 if (TYPE(ch) == RSQB)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1277 return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1278
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1279 REQ(ch, listmaker);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1280 if (NCH(ch) == 1 \|\| TYPE(CHILD(ch, 1)) == COMMA) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1281 asdl_seq *elts = seq_for_testlist(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1282 if (!elts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1283 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1284
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1285 return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1286 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1287 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1288 return ast_for_listcomp(c, ch);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1289 case LBRACE: {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1290 /* dictmaker: test ':' test (',' test ':' test)* [','] */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1291 int i, size;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1292 asdl_seq keys, values;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1293
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1294 ch = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1295 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1296 keys = asdl_seq_new(size, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1297 if (!keys)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1298 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1299
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1300 values = asdl_seq_new(size, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1301 if (!values)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1302 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1303
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1304 for (i = 0; i < NCH(ch); i += 4) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1305 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1306
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1307 expression = ast_for_expr(c, CHILD(ch, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1308 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1309 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1310
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1311 asdl_seq_SET(keys, i / 4, expression);
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1312
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1313 expression = ast_for_expr(c, CHILD(ch, i + 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1314 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1315 return NULL;
35873 76ed7fdc9d85 Fix a whole bunch of potential memory leaks (and some real ones too) Neal Norwitz <nnorwitz@gmail.com> parents: 35870 diff changeset	1316
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1317 asdl_seq_SET(values, i / 4, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1318 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1319 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1320 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1321 case BACKQUOTE: { /* repr */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1322 expr_ty expression = ast_for_testlist(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1323 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1324 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1325
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1326 return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1327 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1328 default:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1329 PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1330 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1331 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1332 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1333
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1334 static slice_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1335 ast_for_slice(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1336 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1337 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1338 expr_ty lower = NULL, upper = NULL, step = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1339
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1340 REQ(n, subscript);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1341
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1342 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1343 subscript: '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1344 sliceop: ':' [test]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1345 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1346 ch = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1347 if (TYPE(ch) == DOT)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1348 return Ellipsis(c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1349
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1350 if (NCH(n) == 1 && TYPE(ch) == test) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1351 /* 'step' variable hold no significance in terms of being used over
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1352 other vars */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1353 step = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1354 if (!step)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1355 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1356
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1357 return Index(step, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1358 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1359
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1360 if (TYPE(ch) == test) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1361 lower = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1362 if (!lower)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1363 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1364 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1365
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1366 /* If there's an upper bound it's in the second or third position. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1367 if (TYPE(ch) == COLON) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1368 if (NCH(n) > 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1369 node *n2 = CHILD(n, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1370
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1371 if (TYPE(n2) == test) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1372 upper = ast_for_expr(c, n2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1373 if (!upper)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1374 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1375 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1376 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1377 } else if (NCH(n) > 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1378 node *n2 = CHILD(n, 2);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1379
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1380 if (TYPE(n2) == test) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1381 upper = ast_for_expr(c, n2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1382 if (!upper)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1383 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1384 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1385 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1386
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1387 ch = CHILD(n, NCH(n) - 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1388 if (TYPE(ch) == sliceop) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1389 if (NCH(ch) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1390 /* No expression, so step is None */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1391 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1392 step = Name(new_identifier("None", c->c_arena), Load,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1393 LINENO(ch), ch->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1394 if (!step)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1395 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1396 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1397 ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1398 if (TYPE(ch) == test) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1399 step = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1400 if (!step)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1401 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1402 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1403 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1404 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1405
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1406 return Slice(lower, upper, step, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1407 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1408
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1409 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1410 ast_for_binop(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1411 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1412 /* Must account for a sequence of expressions.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1413 How should A op B op C by represented?
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1414 BinOp(BinOp(A, op, B), op, C).
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1415 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1416
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1417 int i, nops;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1418 expr_ty expr1, expr2, result;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1419 operator_ty newoperator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1420
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1421 expr1 = ast_for_expr(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1422 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1423 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1424
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1425 expr2 = ast_for_expr(c, CHILD(n, 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1426 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1427 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1428
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1429 newoperator = get_operator(CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1430 if (!newoperator)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1431 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1432
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1433 result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1434 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1435 if (!result)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1436 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1437
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1438 nops = (NCH(n) - 1) / 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1439 for (i = 1; i < nops; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1440 expr_ty tmp_result, tmp;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1441 const node* next_oper = CHILD(n, i * 2 + 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1442
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1443 newoperator = get_operator(next_oper);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1444 if (!newoperator)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1445 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1446
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1447 tmp = ast_for_expr(c, CHILD(n, i * 2 + 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1448 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1449 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1450
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1451 tmp_result = BinOp(result, newoperator, tmp,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1452 LINENO(next_oper), next_oper->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1453 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1454 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1455 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1456 result = tmp_result;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1457 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1458 return result;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1459 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1460
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1461 static expr_ty
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1462 ast_for_trailer(struct compiling c, const node n, expr_ty left_expr)
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1463 {
36686 8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1464 /* trailer: '(' [arglist] ')' \| '[' subscriptlist ']' \| '.' NAME
8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1465 subscriptlist: subscript (',' subscript)* [',']
8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1466 subscript: '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1467 */
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1468 REQ(n, trailer);
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1469 if (TYPE(CHILD(n, 0)) == LPAR) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1470 if (NCH(n) == 2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1471 return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1472 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1473 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1474 return ast_for_call(c, CHILD(n, 1), left_expr);
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1475 }
36679 e1391910b026 Simplify ast_for_trailer() in anticipation of more changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36676 diff changeset	1476 else if (TYPE(CHILD(n, 0)) == DOT ) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1477 return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1478 LINENO(n), n->n_col_offset, c->c_arena);
36679 e1391910b026 Simplify ast_for_trailer() in anticipation of more changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36676 diff changeset	1479 }
e1391910b026 Simplify ast_for_trailer() in anticipation of more changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36676 diff changeset	1480 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1481 REQ(CHILD(n, 0), LSQB);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1482 REQ(CHILD(n, 2), RSQB);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1483 n = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1484 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1485 slice_ty slc = ast_for_slice(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1486 if (!slc)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1487 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1488 return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1489 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1490 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1491 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1492 /* The grammar is ambiguous here. The ambiguity is resolved
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1493 by treating the sequence as a tuple literal if there are
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1494 no slice features.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1495 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1496 int j;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1497 slice_ty slc;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1498 expr_ty e;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1499 bool simple = true;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1500 asdl_seq slices, elts;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1501 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1502 if (!slices)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1503 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1504 for (j = 0; j < NCH(n); j += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1505 slc = ast_for_slice(c, CHILD(n, j));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1506 if (!slc)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1507 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1508 if (slc->kind != Index_kind)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1509 simple = false;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1510 asdl_seq_SET(slices, j / 2, slc);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1511 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1512 if (!simple) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1513 return Subscript(left_expr, ExtSlice(slices, c->c_arena),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1514 Load, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1515 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1516 /* extract Index values and put them in a Tuple */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1517 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1518 if (!elts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1519 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1520 for (j = 0; j < asdl_seq_LEN(slices); ++j) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1521 slc = (slice_ty)asdl_seq_GET(slices, j);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1522 assert(slc->kind == Index_kind && slc->v.Index.value);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1523 asdl_seq_SET(elts, j, slc->v.Index.value);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1524 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1525 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1526 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1527 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1528 return Subscript(left_expr, Index(e, c->c_arena),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1529 Load, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1530 }
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1531 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1532 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1533
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1534 static expr_ty
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1535 ast_for_factor(struct compiling c, const node n)
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1536 {
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1537 node pfactor, ppower, patom, pnum;
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1538 expr_ty expression;
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1539
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1540 /* If the unary - operator is applied to a constant, don't generate
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1541 a UNARY_NEGATIVE opcode. Just store the approriate value as a
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1542 constant. The peephole optimizer already does something like
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1543 this but it doesn't handle the case where the constant is
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1544 (sys.maxint - 1). In that case, we want a PyIntObject, not a
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1545 PyLongObject.
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1546 */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1547 if (TYPE(CHILD(n, 0)) == MINUS &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1548 NCH(n) == 2 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1549 TYPE((pfactor = CHILD(n, 1))) == factor &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1550 NCH(pfactor) == 1 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1551 TYPE((ppower = CHILD(pfactor, 0))) == power &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1552 NCH(ppower) == 1 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1553 TYPE((patom = CHILD(ppower, 0))) == atom &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1554 TYPE((pnum = CHILD(patom, 0))) == NUMBER) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1555 char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1556 if (s == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1557 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1558 s[0] = '-';
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1559 strcpy(s + 1, STR(pnum));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1560 PyObject_FREE(STR(pnum));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1561 STR(pnum) = s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1562 return ast_for_atom(c, patom);
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1563 }
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1564
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1565 expression = ast_for_expr(c, CHILD(n, 1));
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1566 if (!expression)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1567 return NULL;
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1568
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1569 switch (TYPE(CHILD(n, 0))) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1570 case PLUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1571 return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1572 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1573 case MINUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1574 return UnaryOp(USub, expression, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1575 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1576 case TILDE:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1577 return UnaryOp(Invert, expression, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1578 n->n_col_offset, c->c_arena);
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1579 }
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1580 PyErr_Format(PyExc_SystemError, "unhandled factor: %d",
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1581 TYPE(CHILD(n, 0)));
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1582 return NULL;
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1583 }
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1584
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1585 static expr_ty
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1586 ast_for_power(struct compiling c, const node n)
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1587 {
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1588 /* power: atom trailer* ('*' factor)
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1589 */
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1590 int i;
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1591 expr_ty e, tmp;
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1592 REQ(n, power);
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1593 e = ast_for_atom(c, CHILD(n, 0));
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1594 if (!e)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1595 return NULL;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1596 if (NCH(n) == 1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1597 return e;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1598 for (i = 1; i < NCH(n); i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1599 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1600 if (TYPE(ch) != trailer)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1601 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1602 tmp = ast_for_trailer(c, ch, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1603 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1604 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1605 tmp->lineno = e->lineno;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1606 tmp->col_offset = e->col_offset;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1607 e = tmp;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1608 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1609 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1610 expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1611 if (!f)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1612 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1613 tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1614 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1615 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1616 e = tmp;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1617 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1618 return e;
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1619 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1620
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1621 /* Do not name a variable 'expr'! Will cause a compile error.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1622 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1623
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1624 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1625 ast_for_expr(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1626 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1627 /* handle the full range of simple expressions
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1628 test: or_test ['if' or_test 'else' test] \| lambdef
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1629 or_test: and_test ('or' and_test)*
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1630 and_test: not_test ('and' not_test)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1631 not_test: 'not' not_test \| comparison
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1632 comparison: expr (comp_op expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1633 expr: xor_expr ('\|' xor_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1634 xor_expr: and_expr ('^' and_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1635 and_expr: shift_expr ('&' shift_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1636 shift_expr: arith_expr (('<<'\|'>>') arith_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1637 arith_expr: term (('+'\|'-') term)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1638 term: factor ((''\|'/'\|'%'\|'//') factor)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1639 factor: ('+'\|'-'\|'~') factor \| power
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1640 power: atom trailer* ('*' factor)
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1641
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1642 As well as modified versions that exist for backward compatibility,
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1643 to explicitly allow:
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1644 [ x for x in lambda: 0, lambda: 1 ]
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1645 (which would be ambiguous without these extra rules)
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1646
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1647 old_test: or_test \| old_lambdef
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1648 old_lambdef: 'lambda' [vararglist] ':' old_test
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1649
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1650 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1651
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1652 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1653 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1654
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1655 loop:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1656 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1657 case test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1658 case old_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1659 if (TYPE(CHILD(n, 0)) == lambdef \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1660 TYPE(CHILD(n, 0)) == old_lambdef)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1661 return ast_for_lambdef(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1662 else if (NCH(n) > 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1663 return ast_for_ifexpr(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1664 /* Fallthrough */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1665 case or_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1666 case and_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1667 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1668 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1669 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1670 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1671 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1672 if (!seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1673 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1674 for (i = 0; i < NCH(n); i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1675 expr_ty e = ast_for_expr(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1676 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1677 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1678 asdl_seq_SET(seq, i / 2, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1679 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1680 if (!strcmp(STR(CHILD(n, 1)), "and"))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1681 return BoolOp(And, seq, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1682 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1683 assert(!strcmp(STR(CHILD(n, 1)), "or"));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1684 return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1685 case not_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1686 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1687 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1688 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1689 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1690 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1691 expr_ty expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1692 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1693 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1694
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1695 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1696 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1697 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1698 case comparison:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1699 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1700 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1701 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1702 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1703 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1704 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1705 asdl_int_seq *ops;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1706 asdl_seq *cmps;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1707 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1708 if (!ops)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1709 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1710 cmps = asdl_seq_new(NCH(n) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1711 if (!cmps) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1712 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1713 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1714 for (i = 1; i < NCH(n); i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1715 cmpop_ty newoperator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1716
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1717 newoperator = ast_for_comp_op(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1718 if (!newoperator) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1719 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1720 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1721
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1722 expression = ast_for_expr(c, CHILD(n, i + 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1723 if (!expression) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1724 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1725 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1726
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1727 asdl_seq_SET(ops, i / 2, newoperator);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1728 asdl_seq_SET(cmps, i / 2, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1729 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1730 expression = ast_for_expr(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1731 if (!expression) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1732 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1733 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1734
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1735 return Compare(expression, ops, cmps, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1736 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1737 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1738 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1739
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1740 /* The next five cases all handle BinOps. The main body of code
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1741 is the same in each case, but the switch turned inside out to
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1742 reuse the code for each type of operator.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1743 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1744 case expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1745 case xor_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1746 case and_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1747 case shift_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1748 case arith_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1749 case term:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1750 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1751 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1752 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1753 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1754 return ast_for_binop(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1755 case yield_expr: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1756 expr_ty exp = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1757 if (NCH(n) == 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1758 exp = ast_for_testlist(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1759 if (!exp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1760 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1761 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1762 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1763 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1764 case factor:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1765 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1766 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1767 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1768 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1769 return ast_for_factor(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1770 case power:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1771 return ast_for_power(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1772 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1773 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1774 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1775 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1776 /* should never get here unless if error is set */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1777 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1778 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1779
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1780 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1781 ast_for_call(struct compiling c, const node n, expr_ty func)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1782 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1783 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1784 arglist: (argument ',')* (argument [',']\| '' test [',' '*' test]
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1785 \| '**' test)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1786 argument: [test '='] test [gen_for] # Really [keyword '='] test
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1787 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1788
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1789 int i, nargs, nkeywords, ngens;
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1790 asdl_seq *args;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1791 asdl_seq *keywords;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1792 expr_ty vararg = NULL, kwarg = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1793
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1794 REQ(n, arglist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1795
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1796 nargs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1797 nkeywords = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1798 ngens = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1799 for (i = 0; i < NCH(n); i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1800 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1801 if (TYPE(ch) == argument) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1802 if (NCH(ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1803 nargs++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1804 else if (TYPE(CHILD(ch, 1)) == gen_for)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1805 ngens++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1806 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1807 nkeywords++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1808 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1809 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1810 if (ngens > 1 \|\| (ngens && (nargs \|\| nkeywords))) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1811 ast_error(n, "Generator expression must be parenthesized "
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1812 "if not sole argument");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1813 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1814 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1815
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1816 if (nargs + nkeywords + ngens > 255) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1817 ast_error(n, "more than 255 arguments");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1818 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1819 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1820
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1821 args = asdl_seq_new(nargs + ngens, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1822 if (!args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1823 return NULL;
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	1824 keywords = asdl_seq_new(nkeywords, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1825 if (!keywords)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1826 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1827 nargs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1828 nkeywords = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1829 for (i = 0; i < NCH(n); i++) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1830 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1831 if (TYPE(ch) == argument) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1832 expr_ty e;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1833 if (NCH(ch) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1834 if (nkeywords) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1835 ast_error(CHILD(ch, 0),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1836 "non-keyword arg after keyword arg");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1837 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1838 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1839 e = ast_for_expr(c, CHILD(ch, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1840 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1841 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1842 asdl_seq_SET(args, nargs++, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1843 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1844 else if (TYPE(CHILD(ch, 1)) == gen_for) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1845 e = ast_for_genexp(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1846 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1847 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1848 asdl_seq_SET(args, nargs++, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1849 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1850 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1851 keyword_ty kw;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1852 identifier key;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1853
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1854 /* CHILD(ch, 0) is test, but must be an identifier? */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1855 e = ast_for_expr(c, CHILD(ch, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1856 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1857 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1858 /* f(lambda x: x[0] = 3) ends up getting parsed with
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1859 * LHS test = lambda x: x[0], and RHS test = 3.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1860 * SF bug 132313 points out that complaining about a keyword
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1861 * then is very confusing.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1862 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1863 if (e->kind == Lambda_kind) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1864 ast_error(CHILD(ch, 0),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1865 "lambda cannot contain assignment");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1866 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1867 } else if (e->kind != Name_kind) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1868 ast_error(CHILD(ch, 0), "keyword can't be an expression");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1869 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1870 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1871 key = e->v.Name.id;
41974 c8b0e3b8b456 Disallow function calls like foo(None=1). Georg Brandl <georg@python.org> parents: 41773 diff changeset	1872 if (!strcmp(PyString_AS_STRING(key), "None")) {
c8b0e3b8b456 Disallow function calls like foo(None=1). Georg Brandl <georg@python.org> parents: 41773 diff changeset	1873 ast_error(CHILD(ch, 0), "assignment to None");
c8b0e3b8b456 Disallow function calls like foo(None=1). Georg Brandl <georg@python.org> parents: 41773 diff changeset	1874 return NULL;
c8b0e3b8b456 Disallow function calls like foo(None=1). Georg Brandl <georg@python.org> parents: 41773 diff changeset	1875 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1876 e = ast_for_expr(c, CHILD(ch, 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1877 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1878 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1879 kw = keyword(key, e, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1880 if (!kw)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1881 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1882 asdl_seq_SET(keywords, nkeywords++, kw);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1883 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1884 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1885 else if (TYPE(ch) == STAR) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1886 vararg = ast_for_expr(c, CHILD(n, i+1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1887 i++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1888 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1889 else if (TYPE(ch) == DOUBLESTAR) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1890 kwarg = ast_for_expr(c, CHILD(n, i+1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1891 i++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1892 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1893 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1894
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1895 return Call(func, args, keywords, vararg, kwarg, func->lineno,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1896 func->col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1897 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1898
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1899 static expr_ty
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1900 ast_for_testlist(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1901 {
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1902 /* testlist_gexp: test (',' test)* [','] */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1903 /* testlist: test (',' test)* [','] */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1904 /* testlist_safe: test (',' test)+ [','] */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1905 /* testlist1: test (',' test)* */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1906 assert(NCH(n) > 0);
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1907 if (TYPE(n) == testlist_gexp) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1908 if (NCH(n) > 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1909 assert(TYPE(CHILD(n, 1)) != gen_for);
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1910 }
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1911 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1912 assert(TYPE(n) == testlist \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1913 TYPE(n) == testlist_safe \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1914 TYPE(n) == testlist1);
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1915 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1916 if (NCH(n) == 1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1917 return ast_for_expr(c, CHILD(n, 0));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1918 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1919 asdl_seq *tmp = seq_for_testlist(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1920 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1921 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1922 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1923 }
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1924 }
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1925
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1926 static expr_ty
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1927 ast_for_testlist_gexp(struct compiling c, const node n)
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1928 {
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1929 /* testlist_gexp: test ( gen_for \| (',' test)* [','] ) */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1930 /* argument: test [ gen_for ] */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1931 assert(TYPE(n) == testlist_gexp \|\| TYPE(n) == argument);
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1932 if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1933 return ast_for_genexp(c, n);
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1934 return ast_for_testlist(c, n);
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1935 }
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1936
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1937 /* like ast_for_testlist() but returns a sequence */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1938 static asdl_seq*
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1939 ast_for_class_bases(struct compiling c, const node n)
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1940 {
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1941 /* testlist: test (',' test)* [','] */
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1942 assert(NCH(n) > 0);
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1943 REQ(n, testlist);
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1944 if (NCH(n) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1945 expr_ty base;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1946 asdl_seq *bases = asdl_seq_new(1, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1947 if (!bases)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1948 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1949 base = ast_for_expr(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1950 if (!base)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1951 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1952 asdl_seq_SET(bases, 0, base);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1953 return bases;
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1954 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1955
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1956 return seq_for_testlist(c, n);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1957 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1958
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1959 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1960 ast_for_expr_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1961 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1962 REQ(n, expr_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1963 /* expr_stmt: testlist (augassign (yield_expr\|testlist)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1964 \| ('=' (yield_expr\|testlist))*)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1965 testlist: test (',' test)* [',']
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1966 augassign: '+=' \| '-=' \| '*=' \| '/=' \| '%=' \| '&=' \| '\|=' \| '^='
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1967 \| '<<=' \| '>>=' \| '**=' \| '//='
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1968 test: ... here starts the operator precendence dance
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1969 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1970
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1971 if (NCH(n) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1972 expr_ty e = ast_for_testlist(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1973 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1974 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1975
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1976 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1977 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1978 else if (TYPE(CHILD(n, 1)) == augassign) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1979 expr_ty expr1, expr2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1980 operator_ty newoperator;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1981 node *ch = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1982
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1983 expr1 = ast_for_testlist(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1984 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1985 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1986 /* TODO(nas): Remove duplicated error checks (set_context does it) */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1987 switch (expr1->kind) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1988 case GeneratorExp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1989 ast_error(ch, "augmented assignment to generator "
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1990 "expression not possible");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1991 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1992 case Yield_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1993 ast_error(ch, "augmented assignment to yield "
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1994 "expression not possible");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1995 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1996 case Name_kind: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1997 const char *var_name = PyString_AS_STRING(expr1->v.Name.id);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1998 if (var_name[0] == 'N' && !strcmp(var_name, "None")) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1999 ast_error(ch, "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2000 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2001 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2002 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2003 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2004 case Attribute_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2005 case Subscript_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2006 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2007 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2008 ast_error(ch, "illegal expression for augmented "
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2009 "assignment");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2010 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2011 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2012 if(!set_context(expr1, Store, ch))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2013 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2014
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2015 ch = CHILD(n, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2016 if (TYPE(ch) == testlist)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2017 expr2 = ast_for_testlist(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2018 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2019 expr2 = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2020 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2021 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2022
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2023 newoperator = ast_for_augassign(CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2024 if (!newoperator)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2025 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2026
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2027 return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2028 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2029 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2030 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2031 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2032 asdl_seq *targets;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2033 node *value;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2034 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2035
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2036 /* a normal assignment */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2037 REQ(CHILD(n, 1), EQUAL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2038 targets = asdl_seq_new(NCH(n) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2039 if (!targets)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2040 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2041 for (i = 0; i < NCH(n) - 2; i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2042 expr_ty e;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2043 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2044 if (TYPE(ch) == yield_expr) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2045 ast_error(ch, "assignment to yield expression not possible");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2046 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2047 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2048 e = ast_for_testlist(c, ch);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2049
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2050 /* set context to assign */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2051 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2052 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2053
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2054 if (!set_context(e, Store, CHILD(n, i)))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2055 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2056
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2057 asdl_seq_SET(targets, i / 2, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2058 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2059 value = CHILD(n, NCH(n) - 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2060 if (TYPE(value) == testlist)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2061 expression = ast_for_testlist(c, value);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2062 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2063 expression = ast_for_expr(c, value);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2064 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2065 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2066 return Assign(targets, expression, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2067 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2068 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2069 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2070
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2071 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2072 ast_for_print_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2073 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2074 /* print_stmt: 'print' ( [ test (',' test)* [','] ]
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2075 \| '>>' test [ (',' test)+ [','] ] )
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2076 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2077 expr_ty dest = NULL, expression;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2078 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2079 bool nl;
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	2080 int i, j, start = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2081
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2082 REQ(n, print_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2083 if (NCH(n) >= 2 && TYPE(CHILD(n, 1)) == RIGHTSHIFT) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2084 dest = ast_for_expr(c, CHILD(n, 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2085 if (!dest)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2086 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2087 start = 4;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2088 }
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2089 seq = asdl_seq_new((NCH(n) + 1 - start) / 2, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2090 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2091 return NULL;
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	2092 for (i = start, j = 0; i < NCH(n); i += 2, ++j) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2093 expression = ast_for_expr(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2094 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2095 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2096 asdl_seq_SET(seq, j, expression);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2097 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2098 nl = (TYPE(CHILD(n, NCH(n) - 1)) == COMMA) ? false : true;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2099 return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2100 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2101
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2102 static asdl_seq *
37604 c732f66c913f Convert 0 to their respective enum types. Convert Martin v. Löwis <martin@v.loewis.de> parents: 37597 diff changeset	2103 ast_for_exprlist(struct compiling c, const node n, expr_context_ty context)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2104 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2105 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2106 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2107 expr_ty e;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2108
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2109 REQ(n, exprlist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2110
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2111 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2112 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2113 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2114 for (i = 0; i < NCH(n); i += 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2115 e = ast_for_expr(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2116 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2117 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2118 asdl_seq_SET(seq, i / 2, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2119 if (context && !set_context(e, context, CHILD(n, i)))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2120 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2121 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2122 return seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2123 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2124
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2125 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2126 ast_for_del_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2127 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2128 asdl_seq *expr_list;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2129
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2130 /* del_stmt: 'del' exprlist */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2131 REQ(n, del_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2132
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2133 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2134 if (!expr_list)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2135 return NULL;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2136 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2137 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2138
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2139 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2140 ast_for_flow_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2141 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2142 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2143 flow_stmt: break_stmt \| continue_stmt \| return_stmt \| raise_stmt
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2144 \| yield_stmt
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2145 break_stmt: 'break'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2146 continue_stmt: 'continue'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2147 return_stmt: 'return' [testlist]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2148 yield_stmt: yield_expr
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2149 yield_expr: 'yield' testlist
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2150 raise_stmt: 'raise' [test [',' test [',' test]]]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2151 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2152 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2153
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2154 REQ(n, flow_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2155 ch = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2156 switch (TYPE(ch)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2157 case break_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2158 return Break(LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2159 case continue_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2160 return Continue(LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2161 case yield_stmt: { /* will reduce to yield_expr */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2162 expr_ty exp = ast_for_expr(c, CHILD(ch, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2163 if (!exp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2164 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2165 return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2166 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2167 case return_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2168 if (NCH(ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2169 return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2170 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2171 expr_ty expression = ast_for_testlist(c, CHILD(ch, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2172 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2173 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2174 return Return(expression, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2175 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2176 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2177 case raise_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2178 if (NCH(ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2179 return Raise(NULL, NULL, NULL, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2180 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2181 else if (NCH(ch) == 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2182 expr_ty expression = ast_for_expr(c, CHILD(ch, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2183 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2184 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2185 return Raise(expression, NULL, NULL, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2186 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2187 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2188 else if (NCH(ch) == 4) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2189 expr_ty expr1, expr2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2190
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2191 expr1 = ast_for_expr(c, CHILD(ch, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2192 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2193 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2194 expr2 = ast_for_expr(c, CHILD(ch, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2195 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2196 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2197
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2198 return Raise(expr1, expr2, NULL, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2199 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2200 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2201 else if (NCH(ch) == 6) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2202 expr_ty expr1, expr2, expr3;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2203
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2204 expr1 = ast_for_expr(c, CHILD(ch, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2205 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2206 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2207 expr2 = ast_for_expr(c, CHILD(ch, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2208 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2209 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2210 expr3 = ast_for_expr(c, CHILD(ch, 5));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2211 if (!expr3)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2212 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2213
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2214 return Raise(expr1, expr2, expr3, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2215 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2216 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2217 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2218 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2219 "unexpected flow_stmt: %d", TYPE(ch));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2220 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2221 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2222
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2223 PyErr_SetString(PyExc_SystemError, "unhandled flow statement");
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2224 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2225 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2226
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2227 static alias_ty
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2228 alias_for_import_name(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2229 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2230 /*
36742 658f8ff2a442 Make 'as' an actual keyword when with's future statement is used. Not Thomas Wouters <thomas@python.org> parents: 36718 diff changeset	2231 import_as_name: NAME ['as' NAME]
658f8ff2a442 Make 'as' an actual keyword when with's future statement is used. Not Thomas Wouters <thomas@python.org> parents: 36718 diff changeset	2232 dotted_as_name: dotted_name ['as' NAME]
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2233 dotted_name: NAME ('.' NAME)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2234 */
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2235 PyObject *str;
ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2236
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2237 loop:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2238 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2239 case import_as_name:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2240 str = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2241 if (NCH(n) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2242 str = NEW_IDENTIFIER(CHILD(n, 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2243 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2244 return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2245 case dotted_as_name:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2246 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2247 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2248 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2249 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2250 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2251 alias_ty a = alias_for_import_name(c, CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2252 if (!a)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2253 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2254 assert(!a->asname);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2255 a->asname = NEW_IDENTIFIER(CHILD(n, 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2256 return a;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2257 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2258 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2259 case dotted_name:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2260 if (NCH(n) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2261 return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2262 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2263 /* Create a string of the form "a.b.c" */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2264 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2265 size_t len;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2266 char *s;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2267
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2268 len = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2269 for (i = 0; i < NCH(n); i += 2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2270 /* length of string plus one for the dot */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2271 len += strlen(STR(CHILD(n, i))) + 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2272 len--; /* the last name doesn't have a dot */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2273 str = PyString_FromStringAndSize(NULL, len);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2274 if (!str)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2275 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2276 s = PyString_AS_STRING(str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2277 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2278 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2279 for (i = 0; i < NCH(n); i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2280 char *sch = STR(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2281 strcpy(s, STR(CHILD(n, i)));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2282 s += strlen(sch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2283 *s++ = '.';
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2284 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2285 --s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2286 *s = '\0';
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2287 PyString_InternInPlace(&str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2288 PyArena_AddPyObject(c->c_arena, str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2289 return alias(str, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2290 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2291 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2292 case STAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2293 str = PyString_InternFromString("*");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2294 PyArena_AddPyObject(c->c_arena, str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2295 return alias(str, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2296 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2297 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2298 "unexpected import name: %d", TYPE(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2299 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2300 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2301
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2302 PyErr_SetString(PyExc_SystemError, "unhandled import name condition");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2303 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2304 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2305
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2306 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2307 ast_for_import_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2308 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2309 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2310 import_stmt: import_name \| import_from
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2311 import_name: 'import' dotted_as_names
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36695 diff changeset	2312 import_from: 'from' ('.'* dotted_name \| '.') 'import'
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2313 ('*' \| '(' import_as_names ')' \| import_as_names)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2314 */
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2315 int lineno;
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2316 int col_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2317 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2318 asdl_seq *aliases;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2319
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2320 REQ(n, import_stmt);
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2321 lineno = LINENO(n);
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2322 col_offset = n->n_col_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2323 n = CHILD(n, 0);
36682 52cbc447e1c9 And some more cleanup. Thomas Wouters <thomas@python.org> parents: 36681 diff changeset	2324 if (TYPE(n) == import_name) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2325 n = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2326 REQ(n, dotted_as_names);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2327 aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2328 if (!aliases)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2329 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2330 for (i = 0; i < NCH(n); i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2331 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2332 if (!import_alias)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2333 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2334 asdl_seq_SET(aliases, i / 2, import_alias);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2335 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2336 return Import(aliases, lineno, col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2337 }
36682 52cbc447e1c9 And some more cleanup. Thomas Wouters <thomas@python.org> parents: 36681 diff changeset	2338 else if (TYPE(n) == import_from) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2339 int n_children;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2340 int idx, ndots = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2341 alias_ty mod = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2342 identifier modname;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2343
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36695 diff changeset	2344 /* Count the number of dots (for relative imports) and check for the
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2345 optional module name */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2346 for (idx = 1; idx < NCH(n); idx++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2347 if (TYPE(CHILD(n, idx)) == dotted_name) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2348 mod = alias_for_import_name(c, CHILD(n, idx));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2349 idx++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2350 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2351 } else if (TYPE(CHILD(n, idx)) != DOT) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2352 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2353 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2354 ndots++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2355 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2356 idx++; /* skip over the 'import' keyword */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2357 switch (TYPE(CHILD(n, idx))) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2358 case STAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2359 /* from ... import * */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2360 n = CHILD(n, idx);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2361 n_children = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2362 if (ndots) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2363 ast_error(n, "'import *' not allowed with 'from .'");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2364 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2365 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2366 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2367 case LPAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2368 /* from ... import (x, y, z) */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2369 n = CHILD(n, idx + 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2370 n_children = NCH(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2371 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2372 case import_as_names:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2373 /* from ... import x, y, z */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2374 n = CHILD(n, idx);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2375 n_children = NCH(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2376 if (n_children % 2 == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2377 ast_error(n, "trailing comma not allowed without"
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2378 " surrounding parentheses");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2379 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2380 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2381 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2382 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2383 ast_error(n, "Unexpected node-type in from-import");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2384 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2385 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2386
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2387 aliases = asdl_seq_new((n_children + 1) / 2, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2388 if (!aliases)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2389 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2390
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2391 /* handle "from ... import " special b/c there's no children /
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2392 if (TYPE(n) == STAR) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2393 alias_ty import_alias = alias_for_import_name(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2394 if (!import_alias)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2395 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2396 asdl_seq_SET(aliases, 0, import_alias);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2397 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2398 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2399 for (i = 0; i < NCH(n); i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2400 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2401 if (!import_alias)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2402 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2403 asdl_seq_SET(aliases, i / 2, import_alias);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2404 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2405 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2406 if (mod != NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2407 modname = mod->name;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2408 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2409 modname = new_identifier("", c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2410 return ImportFrom(modname, aliases, ndots, lineno, col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2411 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2412 }
35870 f531c05cd240 Convert all internal errors from Exception to SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 35868 diff changeset	2413 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2414 "unknown import statement: starts with command '%s'",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2415 STR(CHILD(n, 0)));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2416 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2417 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2418
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2419 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2420 ast_for_global_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2421 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2422 /* global_stmt: 'global' NAME (',' NAME)* */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2423 identifier name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2424 asdl_seq *s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2425 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2426
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2427 REQ(n, global_stmt);
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2428 s = asdl_seq_new(NCH(n) / 2, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2429 if (!s)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2430 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2431 for (i = 1; i < NCH(n); i += 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2432 name = NEW_IDENTIFIER(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2433 if (!name)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2434 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2435 asdl_seq_SET(s, i / 2, name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2436 }
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2437 return Global(s, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2438 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2439
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2440 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2441 ast_for_exec_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2442 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2443 expr_ty expr1, globals = NULL, locals = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2444 int n_children = NCH(n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2445 if (n_children != 2 && n_children != 4 && n_children != 6) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2446 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2447 "poorly formed 'exec' statement: %d parts to statement",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2448 n_children);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2449 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2450 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2451
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2452 /* exec_stmt: 'exec' expr ['in' test [',' test]] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2453 REQ(n, exec_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2454 expr1 = ast_for_expr(c, CHILD(n, 1));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2455 if (!expr1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2456 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2457 if (n_children >= 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2458 globals = ast_for_expr(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2459 if (!globals)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2460 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2461 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2462 if (n_children == 6) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2463 locals = ast_for_expr(c, CHILD(n, 5));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2464 if (!locals)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2465 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2466 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2467
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2468 return Exec(expr1, globals, locals, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2469 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2470 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2471
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2472 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2473 ast_for_assert_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2474 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2475 /* assert_stmt: 'assert' test [',' test] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2476 REQ(n, assert_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2477 if (NCH(n) == 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2478 expr_ty expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2479 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2480 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2481 return Assert(expression, NULL, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2482 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2483 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2484 else if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2485 expr_ty expr1, expr2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2486
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2487 expr1 = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2488 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2489 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2490 expr2 = ast_for_expr(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2491 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2492 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2493
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2494 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2495 }
35870 f531c05cd240 Convert all internal errors from Exception to SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 35868 diff changeset	2496 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2497 "improper number of parts to 'assert' statement: %d",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2498 NCH(n));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2499 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2500 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2501
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2502 static asdl_seq *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2503 ast_for_suite(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2504 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2505 /* suite: simple_stmt \| NEWLINE INDENT stmt+ DEDENT */
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2506 asdl_seq *seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2507 stmt_ty s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2508 int i, total, num, end, pos = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2509 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2510
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2511 REQ(n, suite);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2512
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2513 total = num_stmts(n);
36065 ea083efdc96c Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines, Neal Norwitz <nnorwitz@gmail.com> parents: 36001 diff changeset	2514 seq = asdl_seq_new(total, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2515 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2516 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2517 if (TYPE(CHILD(n, 0)) == simple_stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2518 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2519 /* simple_stmt always ends with a NEWLINE,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2520 and may have a trailing SEMI
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2521 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2522 end = NCH(n) - 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2523 if (TYPE(CHILD(n, end - 1)) == SEMI)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2524 end--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2525 /* loop by 2 to skip semi-colons */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2526 for (i = 0; i < end; i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2527 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2528 s = ast_for_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2529 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2530 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2531 asdl_seq_SET(seq, pos++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2532 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2533 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2534 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2535 for (i = 2; i < (NCH(n) - 1); i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2536 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2537 REQ(ch, stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2538 num = num_stmts(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2539 if (num == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2540 /* small_stmt or compound_stmt with only one child */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2541 s = ast_for_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2542 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2543 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2544 asdl_seq_SET(seq, pos++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2545 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2546 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2547 int j;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2548 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2549 REQ(ch, simple_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2550 for (j = 0; j < NCH(ch); j += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2551 /* statement terminates with a semi-colon ';' */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2552 if (NCH(CHILD(ch, j)) == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2553 assert((j + 1) == NCH(ch));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2554 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2555 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2556 s = ast_for_stmt(c, CHILD(ch, j));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2557 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2558 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2559 asdl_seq_SET(seq, pos++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2560 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2561 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2562 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2563 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2564 assert(pos == seq->size);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2565 return seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2566 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2567
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2568 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2569 ast_for_if_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2570 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2571 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2572 ['else' ':' suite]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2573 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2574 char *s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2575
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2576 REQ(n, if_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2577
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2578 if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2579 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2580 asdl_seq *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2581
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2582 expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2583 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2584 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2585 suite_seq = ast_for_suite(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2586 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2587 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2588
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2589 return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2590 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2591 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2592
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2593 s = STR(CHILD(n, 4));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2594 /* s[2], the third character in the string, will be
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2595 's' for el_s_e, or
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2596 'i' for el_i_f
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2597 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2598 if (s[2] == 's') {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2599 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2600 asdl_seq seq1, seq2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2601
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2602 expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2603 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2604 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2605 seq1 = ast_for_suite(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2606 if (!seq1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2607 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2608 seq2 = ast_for_suite(c, CHILD(n, 6));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2609 if (!seq2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2610 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2611
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2612 return If(expression, seq1, seq2, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2613 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2614 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2615 else if (s[2] == 'i') {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2616 int i, n_elif, has_else = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2617 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2618 asdl_seq *suite_seq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2619 asdl_seq *orelse = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2620 n_elif = NCH(n) - 4;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2621 /* must reference the child n_elif+1 since 'else' token is third,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2622 not fourth, child from the end. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2623 if (TYPE(CHILD(n, (n_elif + 1))) == NAME
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2624 && STR(CHILD(n, (n_elif + 1)))[2] == 's') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2625 has_else = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2626 n_elif -= 3;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2627 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2628 n_elif /= 4;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2629
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2630 if (has_else) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2631 asdl_seq *suite_seq2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2632
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2633 orelse = asdl_seq_new(1, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2634 if (!orelse)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2635 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2636 expression = ast_for_expr(c, CHILD(n, NCH(n) - 6));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2637 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2638 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2639 suite_seq = ast_for_suite(c, CHILD(n, NCH(n) - 4));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2640 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2641 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2642 suite_seq2 = ast_for_suite(c, CHILD(n, NCH(n) - 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2643 if (!suite_seq2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2644 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2645
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2646 asdl_seq_SET(orelse, 0,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2647 If(expression, suite_seq, suite_seq2,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2648 LINENO(CHILD(n, NCH(n) - 6)),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2649 CHILD(n, NCH(n) - 6)->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2650 c->c_arena));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2651 /* the just-created orelse handled the last elif */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2652 n_elif--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2653 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2654
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2655 for (i = 0; i < n_elif; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2656 int off = 5 + (n_elif - i - 1) * 4;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2657 asdl_seq *newobj = asdl_seq_new(1, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2658 if (!newobj)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2659 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2660 expression = ast_for_expr(c, CHILD(n, off));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2661 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2662 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2663 suite_seq = ast_for_suite(c, CHILD(n, off + 2));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2664 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2665 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2666
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2667 asdl_seq_SET(newobj, 0,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2668 If(expression, suite_seq, orelse,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2669 LINENO(CHILD(n, off)),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2670 CHILD(n, off)->n_col_offset, c->c_arena));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2671 orelse = newobj;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2672 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2673 expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2674 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2675 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2676 suite_seq = ast_for_suite(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2677 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2678 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2679 return If(expression, suite_seq, orelse,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2680 LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2681 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2682
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2683 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2684 "unexpected token in 'if' statement: %s", s);
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2685 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2686 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2687
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2688 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2689 ast_for_while_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2690 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2691 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2692 REQ(n, while_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2693
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2694 if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2695 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2696 asdl_seq *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2697
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2698 expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2699 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2700 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2701 suite_seq = ast_for_suite(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2702 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2703 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2704 return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2705 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2706 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2707 else if (NCH(n) == 7) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2708 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2709 asdl_seq seq1, seq2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2710
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2711 expression = ast_for_expr(c, CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2712 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2713 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2714 seq1 = ast_for_suite(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2715 if (!seq1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2716 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2717 seq2 = ast_for_suite(c, CHILD(n, 6));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2718 if (!seq2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2719 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2720
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2721 return While(expression, seq1, seq2, LINENO(n), n->n_col_offset,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2722 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2723 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2724
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2725 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2726 "wrong number of tokens for 'while' statement: %d",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2727 NCH(n));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2728 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2729 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2730
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2731 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2732 ast_for_for_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2733 {
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2734 asdl_seq _target, seq = NULL, *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2735 expr_ty expression;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2736 expr_ty target;
39067 7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2737 const node *node_target;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2738 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2739 REQ(n, for_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2740
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2741 if (NCH(n) == 9) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2742 seq = ast_for_suite(c, CHILD(n, 8));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2743 if (!seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2744 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2745 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2746
39067 7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2747 node_target = CHILD(n, 1);
7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2748 _target = ast_for_exprlist(c, node_target, Store);
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2749 if (!_target)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2750 return NULL;
39067 7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2751 /* Check the # of children rather than the length of _target, since
7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2752 for x, in ... has 1 element in _target, but still requires a Tuple. */
7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2753 if (NCH(node_target) == 1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2754 target = (expr_ty)asdl_seq_GET(_target, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2755 else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2756 target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2757
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2758 expression = ast_for_testlist(c, CHILD(n, 3));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2759 if (!expression)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2760 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2761 suite_seq = ast_for_suite(c, CHILD(n, 5));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2762 if (!suite_seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2763 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2764
37453 16a64e394602 Add lineno, col_offset to excephandler to enable future fix for Jeremy Hylton <jeremy@alum.mit.edu> parents: 37235 diff changeset	2765 return For(target, expression, suite_seq, seq, LINENO(n), n->n_col_offset,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2766 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2767 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2768
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2769 static excepthandler_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2770 ast_for_except_clause(struct compiling c, const node exc, node *body)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2771 {
41773 f19e631be101 Backport PEP 3110's new 'except' syntax to 2.6. Collin Winter <collinw@gmail.com> parents: 41579 diff changeset	2772 /* except_clause: 'except' [test [(',' \| 'as') test]] */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2773 REQ(exc, except_clause);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2774 REQ(body, suite);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2775
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2776 if (NCH(exc) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2777 asdl_seq *suite_seq = ast_for_suite(c, body);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2778 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2779 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2780
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2781 return excepthandler(NULL, NULL, suite_seq, LINENO(exc),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2782 exc->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2783 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2784 else if (NCH(exc) == 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2785 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2786 asdl_seq *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2787
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2788 expression = ast_for_expr(c, CHILD(exc, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2789 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2790 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2791 suite_seq = ast_for_suite(c, body);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2792 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2793 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2794
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2795 return excepthandler(expression, NULL, suite_seq, LINENO(exc),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2796 exc->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2797 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2798 else if (NCH(exc) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2799 asdl_seq *suite_seq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2800 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2801 expr_ty e = ast_for_expr(c, CHILD(exc, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2802 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2803 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2804 if (!set_context(e, Store, CHILD(exc, 3)))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2805 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2806 expression = ast_for_expr(c, CHILD(exc, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2807 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2808 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2809 suite_seq = ast_for_suite(c, body);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2810 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2811 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2812
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2813 return excepthandler(expression, e, suite_seq, LINENO(exc),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2814 exc->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2815 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2816
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2817 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2818 "wrong number of children for 'except' clause: %d",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2819 NCH(exc));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2820 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2821 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2822
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2823 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2824 ast_for_try_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2825 {
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2826 const int nch = NCH(n);
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2827 int n_except = (nch - 3)/3;
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2828 asdl_seq body, orelse = NULL, *finally = NULL;
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2829
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2830 REQ(n, try_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2831
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2832 body = ast_for_suite(c, CHILD(n, 2));
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2833 if (body == NULL)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2834 return NULL;
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2835
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2836 if (TYPE(CHILD(n, nch - 3)) == NAME) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2837 if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2838 if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2839 /* we can assume it's an "else",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2840 because nch >= 9 for try-else-finally and
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2841 it would otherwise have a type of except_clause */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2842 orelse = ast_for_suite(c, CHILD(n, nch - 4));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2843 if (orelse == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2844 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2845 n_except--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2846 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2847
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2848 finally = ast_for_suite(c, CHILD(n, nch - 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2849 if (finally == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2850 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2851 n_except--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2852 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2853 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2854 /* we can assume it's an "else",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2855 otherwise it would have a type of except_clause */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2856 orelse = ast_for_suite(c, CHILD(n, nch - 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2857 if (orelse == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2858 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2859 n_except--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2860 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2861 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2862 else if (TYPE(CHILD(n, nch - 3)) != except_clause) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2863 ast_error(n, "malformed 'try' statement");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2864 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2865 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2866
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2867 if (n_except > 0) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2868 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2869 stmt_ty except_st;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2870 /* process except statements to create a try ... except */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2871 asdl_seq *handlers = asdl_seq_new(n_except, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2872 if (handlers == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2873 return NULL;
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2874
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2875 for (i = 0; i < n_except; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2876 excepthandler_ty e = ast_for_except_clause(c, CHILD(n, 3 + i * 3),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2877 CHILD(n, 5 + i * 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2878 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2879 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2880 asdl_seq_SET(handlers, i, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2881 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2882
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2883 except_st = TryExcept(body, handlers, orelse, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2884 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2885 if (!finally)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2886 return except_st;
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2887
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2888 /* if a 'finally' is present too, we nest the TryExcept within a
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2889 TryFinally to emulate try ... except ... finally */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2890 body = asdl_seq_new(1, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2891 if (body == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2892 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2893 asdl_seq_SET(body, 0, except_st);
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2894 }
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2895
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2896 /* must be a try ... finally (except clauses are in body, if any exist) */
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2897 assert(finally != NULL);
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2898 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2899 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2900
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2901 static expr_ty
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2902 ast_for_with_var(struct compiling c, const node n)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2903 {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2904 REQ(n, with_var);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2905 return ast_for_expr(c, CHILD(n, 1));
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2906 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2907
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2908 /* with_stmt: 'with' test [ with_var ] ':' suite */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2909 static stmt_ty
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2910 ast_for_with_stmt(struct compiling c, const node n)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2911 {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2912 expr_ty context_expr, optional_vars = NULL;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2913 int suite_index = 3; /* skip 'with', test, and ':' */
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2914 asdl_seq *suite_seq;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2915
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2916 assert(TYPE(n) == with_stmt);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2917 context_expr = ast_for_expr(c, CHILD(n, 1));
41205 b43a52f71696 Patch #1642547: Fix an error/crash when encountering syntax errors in complex if statements. Collin Winter <collinw@gmail.com> parents: 40972 diff changeset	2918 if (!context_expr)
b43a52f71696 Patch #1642547: Fix an error/crash when encountering syntax errors in complex if statements. Collin Winter <collinw@gmail.com> parents: 40972 diff changeset	2919 return NULL;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2920 if (TYPE(CHILD(n, 2)) == with_var) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2921 optional_vars = ast_for_with_var(c, CHILD(n, 2));
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2922
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2923 if (!optional_vars) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2924 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2925 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2926 if (!set_context(optional_vars, Store, n)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2927 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2928 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2929 suite_index = 4;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2930 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2931
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2932 suite_seq = ast_for_suite(c, CHILD(n, suite_index));
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2933 if (!suite_seq) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2934 return NULL;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2935 }
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2936 return With(context_expr, optional_vars, suite_seq, LINENO(n),
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2937 n->n_col_offset, c->c_arena);
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2938 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2939
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2940 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2941 ast_for_classdef(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2942 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2943 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2944 asdl_seq bases, s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2945
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2946 REQ(n, classdef);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2947
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2948 if (!strcmp(STR(CHILD(n, 1)), "None")) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2949 ast_error(n, "assignment to None");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2950 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2951 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2952
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2953 if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2954 s = ast_for_suite(c, CHILD(n, 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2955 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2956 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2957 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2958 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2959 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2960 /* check for empty base list */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2961 if (TYPE(CHILD(n,3)) == RPAR) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2962 s = ast_for_suite(c, CHILD(n,5));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2963 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2964 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2965 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2966 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2967 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2968
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2969 /* else handle the base class list */
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2970 bases = ast_for_class_bases(c, CHILD(n, 3));
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2971 if (!bases)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2972 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2973
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2974 s = ast_for_suite(c, CHILD(n, 6));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2975 if (!s)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2976 return NULL;
37453 16a64e394602 Add lineno, col_offset to excephandler to enable future fix for Jeremy Hylton <jeremy@alum.mit.edu> parents: 37235 diff changeset	2977 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), bases, s, LINENO(n),
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2978 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2979 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2980
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2981 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2982 ast_for_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2983 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2984 if (TYPE(n) == stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2985 assert(NCH(n) == 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2986 n = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2987 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2988 if (TYPE(n) == simple_stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2989 assert(num_stmts(n) == 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2990 n = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2991 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2992 if (TYPE(n) == small_stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2993 REQ(n, small_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2994 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2995 /* small_stmt: expr_stmt \| print_stmt \| del_stmt \| pass_stmt
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2996 \| flow_stmt \| import_stmt \| global_stmt \| exec_stmt
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2997 \| assert_stmt
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2998 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2999 switch (TYPE(n)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3000 case expr_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3001 return ast_for_expr_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3002 case print_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3003 return ast_for_print_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3004 case del_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3005 return ast_for_del_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3006 case pass_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3007 return Pass(LINENO(n), n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3008 case flow_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3009 return ast_for_flow_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3010 case import_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3011 return ast_for_import_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3012 case global_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3013 return ast_for_global_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3014 case exec_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3015 return ast_for_exec_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3016 case assert_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3017 return ast_for_assert_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3018 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3019 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3020 "unhandled small_stmt: TYPE=%d NCH=%d\n",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3021 TYPE(n), NCH(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3022 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3023 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3024 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3025 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3026 /* compound_stmt: if_stmt \| while_stmt \| for_stmt \| try_stmt
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3027 \| funcdef \| classdef
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3028 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3029 node *ch = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3030 REQ(n, compound_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3031 switch (TYPE(ch)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3032 case if_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3033 return ast_for_if_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3034 case while_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3035 return ast_for_while_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3036 case for_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3037 return ast_for_for_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3038 case try_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3039 return ast_for_try_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3040 case with_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3041 return ast_for_with_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3042 case funcdef:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3043 return ast_for_funcdef(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3044 case classdef:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3045 return ast_for_classdef(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3046 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3047 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3048 "unhandled small_stmt: TYPE=%d NCH=%d\n",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3049 TYPE(n), NCH(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3050 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3051 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3052 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3053 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3054
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3055 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3056 parsenumber(const char *s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3057 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3058 const char *end;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3059 long x;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3060 double dx;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3061 #ifndef WITHOUT_COMPLEX
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3062 Py_complex c;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3063 int imflag;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3064 #endif
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3065
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3066 errno = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3067 end = s + strlen(s) - 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3068 #ifndef WITHOUT_COMPLEX
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3069 imflag = end == 'j' \|\| end == 'J';
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3070 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3071 if (end == 'l' \|\| end == 'L')
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3072 return PyLong_FromString((char )s, (char *)0, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3073 if (s[0] == '0') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3074 x = (long) PyOS_strtoul((char )s, (char *)&end, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3075 if (x < 0 && errno == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3076 return PyLong_FromString((char *)s,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3077 (char **)0,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3078 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3079 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3080 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3081 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3082 x = PyOS_strtol((char )s, (char *)&end, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3083 if (*end == '\0') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3084 if (errno != 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3085 return PyLong_FromString((char )s, (char *)0, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3086 return PyInt_FromLong(x);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3087 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3088 /* XXX Huge floats may silently fail */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3089 #ifndef WITHOUT_COMPLEX
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3090 if (imflag) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3091 c.real = 0.;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3092 PyFPE_START_PROTECT("atof", return 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3093 c.imag = PyOS_ascii_atof(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3094 PyFPE_END_PROTECT(c)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3095 return PyComplex_FromCComplex(c);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3096 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3097 else
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3098 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3099 {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3100 PyFPE_START_PROTECT("atof", return 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3101 dx = PyOS_ascii_atof(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3102 PyFPE_END_PROTECT(dx)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3103 return PyFloat_FromDouble(dx);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3104 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3105 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3106
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3107 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3108 decode_utf8(const char *sPtr, const char end, char* encoding)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3109 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3110 #ifndef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3111 Py_FatalError("decode_utf8 should not be called in this build.");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3112 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3113 #else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3114 PyObject u, v;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3115 char s, t;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3116 t = s = (char )sPtr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3117 /* while (s < end && s != '\\') s++; / /* inefficient for u".." */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3118 while (s < end && (*s & 0x80)) s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3119 *sPtr = s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3120 u = PyUnicode_DecodeUTF8(t, s - t, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3121 if (u == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3122 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3123 v = PyUnicode_AsEncodedString(u, encoding, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3124 Py_DECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3125 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3126 #endif
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3127 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3128
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3129 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3130 decode_unicode(const char s, size_t len, int rawmode, const char encoding)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3131 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3132 PyObject v, u;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3133 char *buf;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3134 char *p;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3135 const char *end;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3136 if (encoding == NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3137 buf = (char *)s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3138 u = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3139 } else if (strcmp(encoding, "iso-8859-1") == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3140 buf = (char *)s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3141 u = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3142 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3143 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3144 u = PyString_FromStringAndSize((char )NULL, len 4);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3145 if (u == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3146 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3147 p = buf = PyString_AsString(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3148 end = s + len;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3149 while (s < end) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3150 if (*s == '\\') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3151 p++ = s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3152 if (*s & 0x80) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3153 strcpy(p, "u005c");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3154 p += 5;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3155 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3156 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3157 if (s & 0x80) { / XXX inefficient */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3158 PyObject *w;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3159 char *r;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3160 Py_ssize_t rn, i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3161 w = decode_utf8(&s, end, "utf-16-be");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3162 if (w == NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3163 Py_DECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3164 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3165 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3166 r = PyString_AsString(w);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3167 rn = PyString_Size(w);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3168 assert(rn % 2 == 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3169 for (i = 0; i < rn; i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3170 sprintf(p, "\\u%02x%02x",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3171 r[i + 0] & 0xFF,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3172 r[i + 1] & 0xFF);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3173 p += 6;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3174 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3175 Py_DECREF(w);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3176 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3177 p++ = s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3178 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3179 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3180 len = p - buf;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3181 s = buf;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3182 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3183 if (rawmode)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3184 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3185 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3186 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3187 Py_XDECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3188 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3189 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3190
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3191 /* s is a Python string literal, including the bracketing quote characters,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3192 * and r &/or u prefixes (if any), and embedded escape sequences (if any).
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3193 * parsestr parses it, and returns the decoded Python string object.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3194 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3195 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3196 parsestr(const char s, const char encoding)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3197 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3198 size_t len;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3199 int quote = Py_CHARMASK(*s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3200 int rawmode = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3201 int need_encoding;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3202 int unicode = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3203
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3204 if (isalpha(quote) \|\| quote == '_') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3205 if (quote == 'u' \|\| quote == 'U') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3206 quote = *++s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3207 unicode = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3208 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3209 if (quote == 'r' \|\| quote == 'R') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3210 quote = *++s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3211 rawmode = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3212 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3213 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3214 if (quote != '\'' && quote != '\"') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3215 PyErr_BadInternalCall();
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3216 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3217 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3218 s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3219 len = strlen(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3220 if (len > INT_MAX) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3221 PyErr_SetString(PyExc_OverflowError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3222 "string to parse is too long");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3223 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3224 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3225 if (s[--len] != quote) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3226 PyErr_BadInternalCall();
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3227 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3228 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3229 if (len >= 4 && s[0] == quote && s[1] == quote) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3230 s += 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3231 len -= 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3232 if (s[--len] != quote \|\| s[--len] != quote) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3233 PyErr_BadInternalCall();
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3234 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3235 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3236 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3237 #ifdef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3238 if (unicode \|\| Py_UnicodeFlag) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3239 return decode_unicode(s, len, rawmode, encoding);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3240 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3241 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3242 need_encoding = (encoding != NULL &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3243 strcmp(encoding, "utf-8") != 0 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3244 strcmp(encoding, "iso-8859-1") != 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3245 if (rawmode \|\| strchr(s, '\\') == NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3246 if (need_encoding) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3247 #ifndef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3248 /* This should not happen - we never see any other
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3249 encoding. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3250 Py_FatalError(
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3251 "cannot deal with encodings in this build.");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3252 #else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3253 PyObject v, u = PyUnicode_DecodeUTF8(s, len, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3254 if (u == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3255 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3256 v = PyUnicode_AsEncodedString(u, encoding, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3257 Py_DECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3258 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3259 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3260 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3261 return PyString_FromStringAndSize(s, len);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3262 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3263 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3264
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3265 return PyString_DecodeEscape(s, len, NULL, unicode,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3266 need_encoding ? encoding : NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3267 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3268
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3269 /* Build a Python string object out of a STRING atom. This takes care of
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3270 * compile-time literal catenation, calling parsestr() on each piece, and
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3271 * pasting the intermediate results together.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3272 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3273 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3274 parsestrplus(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3275 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3276 PyObject *v;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3277 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3278 REQ(CHILD(n, 0), STRING);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3279 if ((v = parsestr(STR(CHILD(n, 0)), c->c_encoding)) != NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3280 /* String literal concatenation */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3281 for (i = 1; i < NCH(n); i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3282 PyObject *s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3283 s = parsestr(STR(CHILD(n, i)), c->c_encoding);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3284 if (s == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3285 goto onError;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3286 if (PyString_Check(v) && PyString_Check(s)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3287 PyString_ConcatAndDel(&v, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3288 if (v == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3289 goto onError;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3290 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3291 #ifdef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3292 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3293 PyObject *temp = PyUnicode_Concat(v, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3294 Py_DECREF(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3295 Py_DECREF(v);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3296 v = temp;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3297 if (v == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3298 goto onError;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3299 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3300 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3301 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3302 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3303 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3304
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3305 onError:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3306 Py_XDECREF(v);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3307 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3308 }

Mercurial > cpython-lru_cache-weakref

annotate Python/ast.c @ 42006:16cee674a410 legacy-trunk