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

annotate Python/ast.c @ 54741:cb66473cbbf8 legacy-trunk

set Print.values to NULL if there are no values

author	Benjamin Peterson <benjamin@python.org>
date	Sat, 13 Jun 2009 16:19:19 +0000
parents	04ccec0441b2
children	3eb8510808c9

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 */
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	21 int c_future_unicode; /* __future__ unicode literals flag */
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	22 PyArena c_arena; / arena for allocating memeory */
43997 17479a09ec7c Added filename to compiling struct based on Martin's suggestion. Christian Heimes <christian@cheimes.de> parents: 43985 diff changeset	23 const char c_filename; / filename */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	24 };
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	25
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	26 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	27 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	28 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	29 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	30 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	31 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	32 static expr_ty ast_for_testlist(struct compiling , const node );
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	33 static stmt_ty ast_for_classdef(struct compiling , const node , asdl_seq *);
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	34 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	35
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	36 /* Note different signature for ast_for_call */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	37 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	38
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	39 static PyObject parsenumber(struct compiling , const char *);
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	40 static PyObject parsestr(struct compiling , const char *);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	41 static PyObject parsestrplus(struct compiling , const node *n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	42
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	43 #ifndef LINENO
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	44 #define LINENO(n) ((n)->n_lineno)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	45 #endif
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	46
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	47 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	48 new_identifier(const char* n, PyArena *arena) {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	49 PyObject* id = PyString_InternFromString(n);
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	50 if (id != NULL)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	51 PyArena_AddPyObject(arena, id);
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	52 return id;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	53 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	54
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	55 #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	56
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	57 /* 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	58 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	59 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	60 the filename to everything function.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	61
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	62 XXX Maybe we should just pass the filename...
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	65 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	66 ast_error(const node n, const char errstr)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	67 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	68 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	69 if (!u)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	70 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	71 PyErr_SetObject(PyExc_SyntaxError, u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	72 Py_DECREF(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	73 return 0;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	76 static void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	77 ast_error_finish(const char *filename)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	78 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	79 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	80 long lineno;
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 assert(PyErr_Occurred());
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	83 if (!PyErr_ExceptionMatches(PyExc_SyntaxError))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	84 return;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	85
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	86 PyErr_Fetch(&type, &value, &tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	87 errstr = PyTuple_GetItem(value, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	88 if (!errstr)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	89 return;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	90 Py_INCREF(errstr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	91 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	92 if (lineno == -1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	93 Py_DECREF(errstr);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	94 return;
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	95 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	96 Py_DECREF(value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	97
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	98 loc = PyErr_ProgramText(filename, lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	99 if (!loc) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	100 Py_INCREF(Py_None);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	101 loc = Py_None;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	102 }
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36224 diff changeset	103 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	104 Py_DECREF(loc);
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	105 if (!tmp) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	106 Py_DECREF(errstr);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	107 return;
36000 cc3261597136 SF #1370197, memory leak - ast_error_finish (in error conditions). Neal Norwitz <nnorwitz@gmail.com> parents: 35990 diff changeset	108 }
38406 8f7c7aeac3a5 Replace Py_BuildValue("OO") by PyTuple_Pack. Georg Brandl <georg@python.org> parents: 38218 diff changeset	109 value = PyTuple_Pack(2, errstr, tmp);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	110 Py_DECREF(errstr);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	111 Py_DECREF(tmp);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	112 if (!value)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	113 return;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	114 PyErr_Restore(type, value, tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	115 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	116
47521 31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	117 static int
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	118 ast_warn(struct compiling c, const node n, char *msg)
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	119 {
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	120 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, c->c_filename, LINENO(n),
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	121 NULL, NULL) < 0) {
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	122 /* if -Werr, change it to a SyntaxError */
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	123 if (PyErr_Occurred() && PyErr_ExceptionMatches(PyExc_SyntaxWarning))
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	124 ast_error(n, msg);
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	125 return 0;
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	126 }
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	127 return 1;
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	128 }
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	129
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	130 static int
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	131 forbidden_check(struct compiling c, const node n, const char *x)
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	132 {
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	133 if (!strcmp(x, "None"))
49696 2e0857b0fc67 check for assignment to __debug__ during AST generation Benjamin Peterson <benjamin@python.org> parents: 49584 diff changeset	134 return ast_error(n, "cannot assign to None");
2e0857b0fc67 check for assignment to __debug__ during AST generation Benjamin Peterson <benjamin@python.org> parents: 49584 diff changeset	135 if (!strcmp(x, "__debug__"))
2e0857b0fc67 check for assignment to __debug__ during AST generation Benjamin Peterson <benjamin@python.org> parents: 49584 diff changeset	136 return ast_error(n, "cannot assign to __debug__");
49584 6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	137 if (Py_Py3kWarningFlag) {
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	138 if (!(strcmp(x, "True") && strcmp(x, "False")) &&
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	139 !ast_warn(c, n, "assignment to True or False is forbidden in 3.x"))
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	140 return 0;
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	141 if (!strcmp(x, "nonlocal") &&
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	142 !ast_warn(c, n, "nonlocal is a keyword in 3.x"))
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	143 return 0;
6634530a04e0 give a py3k warning when 'nonlocal' is used as a variable name Benjamin Peterson <benjamin@python.org> parents: 48307 diff changeset	144 }
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	145 return 1;
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	146 }
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	147
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	148 /* num_stmts() returns number of contained statements.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	149
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	150 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	151 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	152 grammar:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	153
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	154 stmt: simple_stmt \| compound_stmt
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	155 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	156
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	157 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	158 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	159 small_stmt elements is returned.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	160 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	161
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	162 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	163 num_stmts(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	164 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	165 int i, l;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	166 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	167
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	168 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	169 case single_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	170 if (TYPE(CHILD(n, 0)) == NEWLINE)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	171 return 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	172 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	173 return num_stmts(CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	174 case file_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	175 l = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	176 for (i = 0; i < NCH(n); i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	177 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	178 if (TYPE(ch) == stmt)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	179 l += num_stmts(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	180 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	181 return l;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	182 case stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	183 return num_stmts(CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	184 case compound_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	185 return 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	186 case simple_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	187 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	188 case suite:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	189 if (NCH(n) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	190 return num_stmts(CHILD(n, 0));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	191 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	192 l = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	193 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	194 l += num_stmts(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	195 return l;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	196 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	197 default: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	198 char buf[128];
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	199
50830 e158c70511fe #4077: No need to append \n when calling Py_FatalError Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 50027 diff changeset	200 sprintf(buf, "Non-statement found: %d %d",
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	201 TYPE(n), NCH(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	202 Py_FatalError(buf);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	203 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	204 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	205 assert(0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	206 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	207 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	208
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	209 /* 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	210 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	211
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	212 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	213 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	214 PyArena *arena)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	215 {
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	216 int i, j, k, num;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	217 asdl_seq *stmts = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	218 stmt_ty s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	219 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	220 struct compiling c;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	221
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	222 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	223 c.c_encoding = "utf-8";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	224 if (TYPE(n) == encoding_decl) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	225 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	226 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	227 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	228 } else if (TYPE(n) == encoding_decl) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	229 c.c_encoding = STR(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	230 n = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	231 } else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	232 c.c_encoding = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	233 }
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	234 c.c_future_unicode = flags && flags->cf_flags & CO_FUTURE_UNICODE_LITERALS;
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	235 c.c_arena = arena;
43997 17479a09ec7c Added filename to compiling struct based on Martin's suggestion. Christian Heimes <christian@cheimes.de> parents: 43985 diff changeset	236 c.c_filename = filename;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	237
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	238 k = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	239 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	240 case file_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	241 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	242 if (!stmts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	243 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	244 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	245 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	246 if (TYPE(ch) == NEWLINE)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	247 continue;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	248 REQ(ch, stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	249 num = num_stmts(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	250 if (num == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	251 s = ast_for_stmt(&c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	252 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	253 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	254 asdl_seq_SET(stmts, k++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	255 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	256 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	257 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	258 REQ(ch, simple_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	259 for (j = 0; j < num; j++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	260 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	261 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	262 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	263 asdl_seq_SET(stmts, k++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	264 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	265 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	266 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	267 return Module(stmts, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	268 case eval_input: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	269 expr_ty testlist_ast;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	270
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	271 /* XXX Why not gen_for here? */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	272 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	273 if (!testlist_ast)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	274 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	275 return Expression(testlist_ast, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	276 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	277 case single_input:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	278 if (TYPE(CHILD(n, 0)) == NEWLINE) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	279 stmts = asdl_seq_new(1, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	280 if (!stmts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	281 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	282 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	283 arena));
41579 7a4f174df844 Handle a couple of uncaught errors. This should be backported Neal Norwitz <nnorwitz@gmail.com> parents: 41578 diff changeset	284 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	285 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	286 return Interactive(stmts, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	287 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	288 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	289 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	290 num = num_stmts(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	291 stmts = asdl_seq_new(num, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	292 if (!stmts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	293 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	294 if (num == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	295 s = ast_for_stmt(&c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	296 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	297 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	298 asdl_seq_SET(stmts, 0, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	299 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	300 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	301 /* 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	302 REQ(n, simple_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	303 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	304 if (TYPE(CHILD(n, i)) == NEWLINE)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	305 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	306 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	307 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	308 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	309 asdl_seq_SET(stmts, i / 2, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	310 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	311 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	312
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	313 return Interactive(stmts, arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	314 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	315 default:
41578 bc6a0fe32351 Actually raise an exception before calling ast_error_finish. Georg Brandl <georg@python.org> parents: 41215 diff changeset	316 PyErr_Format(PyExc_SystemError,
bc6a0fe32351 Actually raise an exception before calling ast_error_finish. Georg Brandl <georg@python.org> parents: 41215 diff changeset	317 "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	318 goto error;
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 error:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	321 ast_error_finish(filename);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	322 return NULL;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	325 /* 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	326 */
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 static operator_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	329 get_operator(const node *n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	330 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	331 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	332 case VBAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	333 return BitOr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	334 case CIRCUMFLEX:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	335 return BitXor;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	336 case AMPER:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	337 return BitAnd;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	338 case LEFTSHIFT:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	339 return LShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	340 case RIGHTSHIFT:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	341 return RShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	342 case PLUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	343 return Add;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	344 case MINUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	345 return Sub;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	346 case STAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	347 return Mult;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	348 case SLASH:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	349 return Div;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	350 case DOUBLESLASH:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	351 return FloorDiv;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	352 case PERCENT:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	353 return Mod;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	354 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	355 return (operator_ty)0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	356 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	357 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	358
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	359 /* 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	360
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	361 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	362 (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	363 an appropriate syntax error and returns false.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	364 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	365
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	366 static int
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	367 set_context(struct compiling c, expr_ty e, expr_context_ty ctx, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	368 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	369 asdl_seq *s = NULL;
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	370 /* 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	371 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	372 */
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	373 const char* expr_name = NULL;
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	374
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	375 /* 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	376 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	377 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	378 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	379 Consider restructuring so that augmented assignment uses
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	380 set_context(), too.
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	381 */
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	382 assert(ctx != AugStore && ctx != AugLoad);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	383
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	384 switch (e->kind) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	385 case Attribute_kind:
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	386 if (ctx == Store && !forbidden_check(c, n,
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	387 PyBytes_AS_STRING(e->v.Attribute.attr)))
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	388 return 0;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	389 e->v.Attribute.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	390 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	391 case Subscript_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	392 e->v.Subscript.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	393 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	394 case Name_kind:
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	395 if (ctx == Store && !forbidden_check(c, n,
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	396 PyBytes_AS_STRING(e->v.Name.id)))
d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	397 return 0;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	398 e->v.Name.ctx = ctx;
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 List_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	401 e->v.List.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	402 s = e->v.List.elts;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	403 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	404 case Tuple_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	405 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	406 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	407 e->v.Tuple.ctx = ctx;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	408 s = e->v.Tuple.elts;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	409 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	410 case Lambda_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	411 expr_name = "lambda";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	412 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	413 case Call_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	414 expr_name = "function call";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	415 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	416 case BoolOp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	417 case BinOp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	418 case UnaryOp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	419 expr_name = "operator";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	420 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	421 case GeneratorExp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	422 expr_name = "generator expression";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	423 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	424 case Yield_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	425 expr_name = "yield expression";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	426 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	427 case ListComp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	428 expr_name = "list comprehension";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	429 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	430 case Dict_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	431 case Num_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	432 case Str_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	433 expr_name = "literal";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	434 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	435 case Compare_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	436 expr_name = "comparison";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	437 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	438 case Repr_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	439 expr_name = "repr";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	440 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	441 case IfExp_kind:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	442 expr_name = "conditional expression";
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	443 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	444 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	445 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	446 "unexpected expression in assignment %d (line %d)",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	447 e->kind, e->lineno);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	448 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	449 }
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	450 /* Check for error string set by switch */
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	451 if (expr_name) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	452 char buf[300];
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	453 PyOS_snprintf(buf, sizeof(buf),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	454 "can't %s %s",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	455 ctx == Store ? "assign to" : "delete",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	456 expr_name);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	457 return ast_error(n, buf);
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	458 }
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	459
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	460 /* 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	461 context for all the contained elements.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	462 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	463 if (s) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	464 int i;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	465
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	466 for (i = 0; i < asdl_seq_LEN(s); i++) {
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	467 if (!set_context(c, (expr_ty)asdl_seq_GET(s, i), ctx, n))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	468 return 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	469 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	470 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	471 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	472 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	473
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	474 static operator_ty
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	475 ast_for_augassign(struct compiling c, const node n)
35742 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 REQ(n, augassign);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	478 n = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	479 switch (STR(n)[0]) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	480 case '+':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	481 return Add;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	482 case '-':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	483 return Sub;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	484 case '/':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	485 if (STR(n)[1] == '/')
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	486 return FloorDiv;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	487 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	488 return Div;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	489 case '%':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	490 return Mod;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	491 case '<':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	492 return LShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	493 case '>':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	494 return RShift;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	495 case '&':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	496 return BitAnd;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	497 case '^':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	498 return BitXor;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	499 case '\|':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	500 return BitOr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	501 case '*':
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	502 if (STR(n)[1] == '*')
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	503 return Pow;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	504 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	505 return Mult;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	506 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	507 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	508 return (operator_ty)0;
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 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	511
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	512 static cmpop_ty
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	513 ast_for_comp_op(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	514 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	515 /* comp_op: '<'\|'>'\|'=='\|'>='\|'<='\|'<>'\|'!='\|'in'\|'not' 'in'\|'is'
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	516 \|'is' 'not'
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	517 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	518 REQ(n, comp_op);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	519 if (NCH(n) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	520 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	521 switch (TYPE(n)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	522 case LESS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	523 return Lt;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	524 case GREATER:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	525 return Gt;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	526 case EQEQUAL: /* == */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	527 return Eq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	528 case LESSEQUAL:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	529 return LtE;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	530 case GREATEREQUAL:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	531 return GtE;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	532 case NOTEQUAL:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	533 return NotEq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	534 case NAME:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	535 if (strcmp(STR(n), "in") == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	536 return In;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	537 if (strcmp(STR(n), "is") == 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	538 return Is;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	539 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	540 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	541 STR(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	542 return (cmpop_ty)0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	543 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	544 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	545 else if (NCH(n) == 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	546 /* handle "not in" and "is not" */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	547 switch (TYPE(CHILD(n, 0))) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	548 case NAME:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	549 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	550 return NotIn;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	551 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	552 return IsNot;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	553 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	554 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	555 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	556 return (cmpop_ty)0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	557 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	558 }
35870 f531c05cd240 Convert all internal errors from Exception to SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 35868 diff changeset	559 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	560 NCH(n));
37604 c732f66c913f Convert 0 to their respective enum types. Convert Martin v. Löwis <martin@v.loewis.de> parents: 37597 diff changeset	561 return (cmpop_ty)0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	562 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	563
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	564 static asdl_seq *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	565 seq_for_testlist(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	566 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	567 /* testlist: test (',' test)* [','] */
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35748 diff changeset	568 asdl_seq *seq;
d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35748 diff changeset	569 expr_ty expression;
d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35748 diff changeset	570 int i;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	571 assert(TYPE(n) == testlist \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	572 TYPE(n) == listmaker \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	573 TYPE(n) == testlist_gexp \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	574 TYPE(n) == testlist_safe \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	575 TYPE(n) == testlist1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	576
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	577 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	578 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	579 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	580
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	581 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	582 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	583
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	584 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	585 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	586 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	587
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	588 assert(i / 2 < seq->size);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	589 asdl_seq_SET(seq, i / 2, expression);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	590 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	591 return seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	592 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	593
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	594 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	595 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	596 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	597 int i, len = (NCH(n) + 1) / 2;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	598 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	599 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	600 if (!args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	601 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	602
39872 b8cb7201379c Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)). Neal Norwitz <nnorwitz@gmail.com> parents: 39779 diff changeset	603 /* 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	604 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	605 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	606 REQ(n, fplist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	607 for (i = 0; i < len; i++) {
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	608 PyObject *arg_id;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	609 const node fpdef_node = CHILD(n, 2i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	610 const node *child;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	611 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	612 set_name:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	613 /* 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	614 child = CHILD(fpdef_node, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	615 if (TYPE(child) == NAME) {
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	616 if (!forbidden_check(c, n, STR(child)))
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	617 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	618 arg_id = NEW_IDENTIFIER(child);
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	619 if (!arg_id)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	620 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	621 arg = Name(arg_id, Store, LINENO(child), child->n_col_offset,
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	622 c->c_arena);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	623 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	624 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	625 assert(TYPE(fpdef_node) == fpdef);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	626 /* 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	627 child = CHILD(fpdef_node, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	628 assert(TYPE(child) == fplist);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	629 /* 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	630 if (NCH(child) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	631 fpdef_node = CHILD(child, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	632 assert(TYPE(fpdef_node) == fpdef);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	633 goto set_name;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	634 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	635 arg = compiler_complex_args(c, child);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	636 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	637 asdl_seq_SET(args, i, arg);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	638 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	639
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	640 result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena);
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	641 if (!set_context(c, result, Store, n))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	642 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	643 return result;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	644 }
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
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	647 /* Create AST for argument list. */
35742 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 static arguments_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	650 ast_for_arguments(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	651 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	652 /* parameters: '(' [varargslist] ')'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	653 varargslist: (fpdef ['=' test] ',')* ('' NAME [',' '*' NAME]
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	654 \| '*' NAME) \| fpdef ['=' test] (',' fpdef ['=' test]) [',']
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	655 */
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	656 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	657 asdl_seq args, defaults;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	658 identifier vararg = NULL, kwarg = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	659 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	660
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	661 if (TYPE(n) == parameters) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	662 if (NCH(n) == 2) /* () as argument list */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	663 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	664 n = CHILD(n, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	665 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	666 REQ(n, varargslist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	667
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	668 /* first count the number of normal args & defaults */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	669 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	670 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	671 if (TYPE(ch) == fpdef)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	672 n_args++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	673 if (TYPE(ch) == EQUAL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	674 n_defaults++;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	675 }
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	676 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	677 if (!args && n_args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	678 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	679 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	680 if (!defaults && n_defaults)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	681 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	682
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	683 /* fpdef: NAME \| '(' fplist ')'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	684 fplist: fpdef (',' fpdef)* [',']
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	685 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	686 i = 0;
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	687 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	688 k = 0; /* index for args */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	689 while (i < NCH(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	690 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	691 switch (TYPE(ch)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	692 case fpdef:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	693 handle_fpdef:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	694 /* 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	695 anything other than EQUAL or a comma? */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	696 /* 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	697 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	698 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	699 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	700 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	701 assert(defaults != NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	702 asdl_seq_SET(defaults, j++, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	703 i += 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	704 found_default = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	705 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	706 else if (found_default) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	707 ast_error(n,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	708 "non-default argument follows default argument");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	709 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	710 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	711 if (NCH(ch) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	712 ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	713 /* 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	714 if (NCH(ch) != 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	715 /* We have complex arguments, setup for unpacking. */
47524 53253f36014e warn about parameter tuple unpacking Benjamin Peterson <benjamin@python.org> parents: 47523 diff changeset	716 if (Py_Py3kWarningFlag && !ast_warn(c, ch,
53253f36014e warn about parameter tuple unpacking Benjamin Peterson <benjamin@python.org> parents: 47523 diff changeset	717 "tuple parameter unpacking has been removed in 3.x"))
53253f36014e warn about parameter tuple unpacking Benjamin Peterson <benjamin@python.org> parents: 47523 diff changeset	718 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	719 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	720 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	721 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	722 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	723 /* 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	724 /* 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	725 unpacking mixed in. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	726 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	727 assert(TYPE(ch) == fpdef);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	728 goto handle_fpdef;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	729 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	730 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	731 if (TYPE(CHILD(ch, 0)) == NAME) {
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	732 PyObject *id;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	733 expr_ty name;
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	734 if (!forbidden_check(c, n, STR(CHILD(ch, 0))))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	735 goto error;
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	736 id = NEW_IDENTIFIER(CHILD(ch, 0));
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	737 if (!id)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	738 goto error;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	739 name = Name(id, Param, LINENO(ch), ch->n_col_offset,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	740 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	741 if (!name)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	742 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	743 asdl_seq_SET(args, k++, name);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	744
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	745 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	746 i += 2; /* the name and the comma */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	747 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	748 case STAR:
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	749 if (!forbidden_check(c, CHILD(n, i+1), STR(CHILD(n, i+1))))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	750 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	751 vararg = NEW_IDENTIFIER(CHILD(n, i+1));
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	752 if (!vararg)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	753 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	754 i += 3;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	755 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	756 case DOUBLESTAR:
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	757 if (!forbidden_check(c, CHILD(n, i+1), STR(CHILD(n, i+1))))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	758 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	759 kwarg = NEW_IDENTIFIER(CHILD(n, i+1));
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	760 if (!kwarg)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	761 goto error;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	762 i += 3;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	763 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	764 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	765 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	766 "unexpected node in varargslist: %d @ %d",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	767 TYPE(ch), i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	768 goto error;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	769 }
35742 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
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	772 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	773
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	774 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	775 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	776 Py_XDECREF(kwarg);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	777 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	778 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	779
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	780 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	781 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	782 {
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	783 expr_ty e;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	784 identifier id;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	785 int lineno, col_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	786 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	787
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	788 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	789
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	790 lineno = LINENO(n);
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	791 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	792
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	793 id = NEW_IDENTIFIER(CHILD(n, 0));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	794 if (!id)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	795 return NULL;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	796 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	797 if (!e)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	798 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	799
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	800 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	801 id = NEW_IDENTIFIER(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	802 if (!id)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	803 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	804 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	805 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	806 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	807 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	808
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	809 return e;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	810 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	811
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	812 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	813 ast_for_decorator(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	814 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	815 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	816 expr_ty d = NULL;
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	817 expr_ty name_expr;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	818
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	819 REQ(n, decorator);
36418 a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	820 REQ(CHILD(n, 0), AT);
a625e8876407 Improved handling of syntax errors. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36242 diff changeset	821 REQ(RCHILD(n, -1), NEWLINE);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	822
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	823 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	824 if (!name_expr)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	825 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	826
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	827 if (NCH(n) == 3) { /* No arguments */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	828 d = name_expr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	829 name_expr = NULL;
35742 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 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	832 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	833 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	834 if (!d)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	835 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	836 name_expr = NULL;
35742 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 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	839 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	840 if (!d)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	841 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	842 name_expr = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	843 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	844
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	845 return d;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	846 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	847
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	848 static asdl_seq*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	849 ast_for_decorators(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	850 {
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	851 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	852 expr_ty d;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	853 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	854
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	855 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	856 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	857 if (!decorator_seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	858 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	859
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	860 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	861 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	862 if (!d)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	863 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	864 asdl_seq_SET(decorator_seq, i, d);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	865 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	866 return decorator_seq;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	869 static stmt_ty
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	870 ast_for_funcdef(struct compiling c, const node n, asdl_seq *decorator_seq)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	871 {
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	872 /* funcdef: 'def' NAME parameters ':' suite */
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	873 identifier name;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	874 arguments_ty args;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	875 asdl_seq *body;
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	876 int name_i = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	877
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	878 REQ(n, funcdef);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	879
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	880 name = NEW_IDENTIFIER(CHILD(n, name_i));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	881 if (!name)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	882 return NULL;
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	883 else if (!forbidden_check(c, CHILD(n, name_i), STR(CHILD(n, name_i))))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	884 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	885 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	886 if (!args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	887 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	888 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	889 if (!body)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	890 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	891
37453 16a64e394602 Add lineno, col_offset to excephandler to enable future fix for Jeremy Hylton <jeremy@alum.mit.edu> parents: 37235 diff changeset	892 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	893 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	894 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	895
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	896 static stmt_ty
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	897 ast_for_decorated(struct compiling c, const node n)
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	898 {
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	899 /* decorated: decorators (classdef \| funcdef) */
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	900 stmt_ty thing = NULL;
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	901 asdl_seq *decorator_seq = NULL;
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	902
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	903 REQ(n, decorated);
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	904
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	905 decorator_seq = ast_for_decorators(c, CHILD(n, 0));
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	906 if (!decorator_seq)
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	907 return NULL;
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	908
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	909 assert(TYPE(CHILD(n, 1)) == funcdef \|\|
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	910 TYPE(CHILD(n, 1)) == classdef);
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	911
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	912 if (TYPE(CHILD(n, 1)) == funcdef) {
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	913 thing = ast_for_funcdef(c, CHILD(n, 1), decorator_seq);
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	914 } else if (TYPE(CHILD(n, 1)) == classdef) {
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	915 thing = ast_for_classdef(c, CHILD(n, 1), decorator_seq);
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	916 }
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	917 /* we count the decorators in when talking about the class' or
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	918 function's line number */
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	919 if (thing) {
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	920 thing->lineno = LINENO(n);
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	921 thing->col_offset = n->n_col_offset;
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	922 }
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	923 return thing;
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	924 }
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	925
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	926 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	927 ast_for_lambdef(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	928 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	929 /* lambdef: 'lambda' [varargslist] ':' test */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	930 arguments_ty args;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	931 expr_ty expression;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	932
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	933 if (NCH(n) == 3) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	934 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	935 if (!args)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	936 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	937 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	938 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	939 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	940 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	941 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	942 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	943 if (!args)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	944 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	945 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	946 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	947 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	948 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	949
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	950 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	951 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	952
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	953 static expr_ty
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	954 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	955 {
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	956 /* 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	957 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	958
36676 67c74efad8c2 Fix old not-reading-pep-308-right artifact. Thomas Wouters <thomas@python.org> parents: 36670 diff changeset	959 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	960 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	961 if (!body)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	962 return NULL;
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	963 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	964 if (!expression)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	965 return NULL;
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	966 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	967 if (!orelse)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	968 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	969 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	970 c->c_arena);
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	971 }
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	972
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	973 /* 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	974 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	975 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	976 */
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	977
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	978 /* 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	979
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	980 Helper for ast_for_listcomp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	981 */
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 static int
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	984 count_list_fors(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	985 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	986 int n_fors = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	987 node *ch = CHILD(n, 1);
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 count_list_for:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	990 n_fors++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	991 REQ(ch, list_for);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	992 if (NCH(ch) == 5)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	993 ch = CHILD(ch, 4);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	994 else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	995 return n_fors;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	996 count_list_iter:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	997 REQ(ch, list_iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	998 ch = CHILD(ch, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	999 if (TYPE(ch) == list_for)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1000 goto count_list_for;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1001 else if (TYPE(ch) == list_if) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1002 if (NCH(ch) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1003 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1004 goto count_list_iter;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1005 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1006 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1007 return n_fors;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1008 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1009
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1010 /* Should never be reached */
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1011 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	1012 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1013 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1014
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1015 /* 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	1016
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1017 Helper for ast_for_listcomp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1018 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1019
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1020 static int
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1021 count_list_ifs(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1022 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1023 int n_ifs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1024
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1025 count_list_iter:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1026 REQ(n, list_iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1027 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	1028 return n_ifs;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1029 n = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1030 REQ(n, list_if);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1031 n_ifs++;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1032 if (NCH(n) == 2)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1033 return n_ifs;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1034 n = CHILD(n, 2);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1035 goto count_list_iter;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1036 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1037
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1038 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1039 ast_for_listcomp(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1040 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1041 /* listmaker: test ( list_for \| (',' test)* [','] )
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1042 list_for: 'for' exprlist 'in' testlist_safe [list_iter]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1043 list_iter: list_for \| list_if
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1044 list_if: 'if' test [list_iter]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1045 testlist_safe: test [(',' test)+ [',']]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1046 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1047 expr_ty elt;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1048 asdl_seq *listcomps;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1049 int i, n_fors;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1050 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1051
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1052 REQ(n, listmaker);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1053 assert(NCH(n) > 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1054
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1055 elt = ast_for_expr(c, CHILD(n, 0));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1056 if (!elt)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1057 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1058
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1059 n_fors = count_list_fors(c, n);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1060 if (n_fors == -1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1061 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1062
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	1063 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	1064 if (!listcomps)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1065 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	1066
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1067 ch = CHILD(n, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1068 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	1069 comprehension_ty lc;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1070 asdl_seq *t;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1071 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1072 node *for_ch;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1073
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1074 REQ(ch, list_for);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1075
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1076 for_ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1077 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	1078 if (!t)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1079 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1080 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	1081 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1082 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1083
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1084 /* 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	1085 [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	1086 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1087 if (NCH(for_ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1088 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	1089 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1090 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1091 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	1092 c->c_arena),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1093 expression, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1094 if (!lc)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1095 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1096
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1097 if (NCH(ch) == 5) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1098 int j, n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1099 asdl_seq *ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1100 expr_ty list_for_expr;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1101
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1102 ch = CHILD(ch, 4);
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1103 n_ifs = count_list_ifs(c, ch);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1104 if (n_ifs == -1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1105 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1106
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1107 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	1108 if (!ifs)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1109 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1110
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1111 for (j = 0; j < n_ifs; j++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1112 REQ(ch, list_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1113 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1114 REQ(ch, list_if);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1115
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1116 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	1117 if (!list_for_expr)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1118 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1119
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1120 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	1121 if (NCH(ch) == 3)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1122 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1123 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1124 /* 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	1125 if (TYPE(ch) == list_iter)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1126 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1127 lc->ifs = ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1128 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1129 asdl_seq_SET(listcomps, i, lc);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1130 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1131
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	1132 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	1133 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1134
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1135 /* 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	1136
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1137 Helper for ast_for_genexp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1138 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1139
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1140 static int
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1141 count_gen_fors(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1142 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1143 int n_fors = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1144 node *ch = CHILD(n, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1145
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1146 count_gen_for:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1147 n_fors++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1148 REQ(ch, gen_for);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1149 if (NCH(ch) == 5)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1150 ch = CHILD(ch, 4);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1151 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1152 return n_fors;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1153 count_gen_iter:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1154 REQ(ch, gen_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1155 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1156 if (TYPE(ch) == gen_for)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1157 goto count_gen_for;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1158 else if (TYPE(ch) == gen_if) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1159 if (NCH(ch) == 3) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1160 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1161 goto count_gen_iter;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1162 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1163 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1164 return n_fors;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1165 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1166
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1167 /* Should never be reached */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1168 PyErr_SetString(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1169 "logic error in count_gen_fors");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1170 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1171 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1172
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1173 /* 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	1174
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1175 Helper for ast_for_genexp().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1176 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1177
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1178 static int
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1179 count_gen_ifs(struct compiling c, const node n)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1180 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1181 int n_ifs = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1182
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1183 while (1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1184 REQ(n, gen_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1185 if (TYPE(CHILD(n, 0)) == gen_for)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1186 return n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1187 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1188 REQ(n, gen_if);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1189 n_ifs++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1190 if (NCH(n) == 2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1191 return n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1192 n = CHILD(n, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1193 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1194 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1195
36718 45e6f901902c Remove asdl_seq_APPEND() and simplify asdl seq implementation. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36712 diff changeset	1196 /* TODO(jhylton): Combine with list comprehension code? */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1197 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1198 ast_for_genexp(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1199 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1200 /* testlist_gexp: test ( gen_for \| (',' test)* [','] )
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1201 argument: [test '='] test [gen_for] # Really [keyword '='] test */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1202 expr_ty elt;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1203 asdl_seq *genexps;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1204 int i, n_fors;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1205 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1206
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1207 assert(TYPE(n) == (testlist_gexp) \|\| TYPE(n) == (argument));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1208 assert(NCH(n) > 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1209
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1210 elt = ast_for_expr(c, CHILD(n, 0));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1211 if (!elt)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1212 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1213
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1214 n_fors = count_gen_fors(c, n);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1215 if (n_fors == -1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1216 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	1217
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	1218 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	1219 if (!genexps)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1220 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	1221
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1222 ch = CHILD(n, 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1223 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	1224 comprehension_ty ge;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1225 asdl_seq *t;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1226 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1227 node *for_ch;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1228
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1229 REQ(ch, gen_for);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1230
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1231 for_ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1232 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	1233 if (!t)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1234 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1235 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	1236 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1237 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	1238
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1239 /* 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	1240 (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	1241 if (NCH(for_ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1242 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	1243 NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1244 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1245 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	1246 c->c_arena),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1247 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	1248
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1249 if (!ge)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1250 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	1251
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1252 if (NCH(ch) == 5) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1253 int j, n_ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1254 asdl_seq *ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1255
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1256 ch = CHILD(ch, 4);
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1257 n_ifs = count_gen_ifs(c, ch);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1258 if (n_ifs == -1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1259 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	1260
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1261 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	1262 if (!ifs)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1263 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	1264
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1265 for (j = 0; j < n_ifs; j++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1266 REQ(ch, gen_iter);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1267 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1268 REQ(ch, gen_if);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1269
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1270 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	1271 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1272 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1273 asdl_seq_SET(ifs, j, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1274 if (NCH(ch) == 3)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1275 ch = CHILD(ch, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1276 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1277 /* 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	1278 if (TYPE(ch) == gen_iter)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1279 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1280 ge->ifs = ifs;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1281 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1282 asdl_seq_SET(genexps, i, ge);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1283 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1284
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	1285 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	1286 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1287
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1288 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1289 ast_for_atom(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1290 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1291 /* atom: '(' [yield_expr\|testlist_gexp] ')' \| '[' [listmaker] ']'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1292 \| '{' [dictmaker] '}' \| '`' testlist '`' \| NAME \| NUMBER \| STRING+
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1293 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1294 node *ch = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1295
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1296 switch (TYPE(ch)) {
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1297 case NAME: {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1298 /* 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	1299 changed. */
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1300 PyObject *name = NEW_IDENTIFIER(ch);
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1301 if (!name)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1302 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1303 return Name(name, Load, LINENO(n), n->n_col_offset, c->c_arena);
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1304 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1305 case STRING: {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1306 PyObject *str = parsestrplus(c, n);
42308 6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1307 if (!str) {
44572 db5e01c33eb7 Make Python compile with --disable-unicode. Georg Brandl <georg@python.org> parents: 43997 diff changeset	1308 #ifdef Py_USING_UNICODE
42308 6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1309 if (PyErr_ExceptionMatches(PyExc_UnicodeError)){
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1310 PyObject type, value, tback, errstr;
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1311 PyErr_Fetch(&type, &value, &tback);
49795 b64d053afd84 don't segfault when \N escapes are used and unicodedata fails to load Benjamin Peterson <benjamin@python.org> parents: 49696 diff changeset	1312 errstr = PyObject_Str(value);
42308 6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1313 if (errstr) {
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1314 char *s = "";
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1315 char buf[128];
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	1316 s = PyString_AsString(errstr);
42308 6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1317 PyOS_snprintf(buf, sizeof(buf), "(unicode error) %s", s);
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1318 ast_error(n, buf);
49795 b64d053afd84 don't segfault when \N escapes are used and unicodedata fails to load Benjamin Peterson <benjamin@python.org> parents: 49696 diff changeset	1319 Py_DECREF(errstr);
42308 6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1320 } else {
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1321 ast_error(n, "(unicode error) unknown error");
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1322 }
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1323 Py_DECREF(type);
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1324 Py_DECREF(value);
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1325 Py_XDECREF(tback);
6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1326 }
44572 db5e01c33eb7 Make Python compile with --disable-unicode. Georg Brandl <georg@python.org> parents: 43997 diff changeset	1327 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1328 return NULL;
42308 6775ee6d89d3 SF patch# 1755885 by Kurt Kaiser: show location of Unicode escape errors. Guido van Rossum <guido@python.org> parents: 41974 diff changeset	1329 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1330 PyArena_AddPyObject(c->c_arena, str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1331 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	1332 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1333 case NUMBER: {
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1334 PyObject *pynum = parsenumber(c, STR(ch));
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1335 if (!pynum)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1336 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	1337
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1338 PyArena_AddPyObject(c->c_arena, pynum);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1339 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	1340 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1341 case LPAR: /* some parenthesized expressions */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1342 ch = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1343
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1344 if (TYPE(ch) == RPAR)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1345 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	1346
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1347 if (TYPE(ch) == yield_expr)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1348 return ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1349
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1350 return ast_for_testlist_gexp(c, ch);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1351 case LSQB: /* list (or list comprehension) */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1352 ch = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1353
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1354 if (TYPE(ch) == RSQB)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1355 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	1356
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1357 REQ(ch, listmaker);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1358 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	1359 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	1360 if (!elts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1361 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	1362
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1363 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	1364 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1365 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1366 return ast_for_listcomp(c, ch);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1367 case LBRACE: {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1368 /* dictmaker: test ':' test (',' test ':' test)* [','] */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1369 int i, size;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1370 asdl_seq keys, values;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1371
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1372 ch = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1373 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	1374 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	1375 if (!keys)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1376 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1377
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1378 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	1379 if (!values)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1380 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1381
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1382 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	1383 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1384
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1385 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	1386 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1387 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	1388
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1389 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	1390
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1391 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	1392 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1393 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	1394
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1395 asdl_seq_SET(values, i / 4, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1396 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1397 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	1398 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1399 case BACKQUOTE: { /* repr */
43985 2230f16e402b And yet another fix for the patch. Paul Moore has send me a note that I've missed a declaration. The additional code has moved the declaration in the middle of the block. Christian Heimes <christian@cheimes.de> parents: 43984 diff changeset	1400 expr_ty expression;
47521 31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	1401 if (Py_Py3kWarningFlag &&
31aee67019a2 add an ast_warn helper function to make adding those Py3k warnings easier Benjamin Peterson <benjamin@python.org> parents: 47516 diff changeset	1402 !ast_warn(c, n, "backquote not supported in 3.x; use repr()"))
43985 2230f16e402b And yet another fix for the patch. Paul Moore has send me a note that I've missed a declaration. The additional code has moved the declaration in the middle of the block. Christian Heimes <christian@cheimes.de> parents: 43984 diff changeset	1403 return NULL;
2230f16e402b And yet another fix for the patch. Paul Moore has send me a note that I've missed a declaration. The additional code has moved the declaration in the middle of the block. Christian Heimes <christian@cheimes.de> parents: 43984 diff changeset	1404 expression = ast_for_testlist(c, CHILD(n, 1));
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1405 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1406 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	1407
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1408 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	1409 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1410 default:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1411 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	1412 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1413 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1414 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1415
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1416 static slice_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1417 ast_for_slice(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1418 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1419 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1420 expr_ty lower = NULL, upper = NULL, step = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1421
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1422 REQ(n, subscript);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1423
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1424 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1425 subscript: '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1426 sliceop: ':' [test]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1427 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1428 ch = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1429 if (TYPE(ch) == DOT)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1430 return Ellipsis(c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1431
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1432 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	1433 /* '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	1434 other vars */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1435 step = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1436 if (!step)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1437 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1438
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1439 return Index(step, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1440 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1441
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1442 if (TYPE(ch) == test) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1443 lower = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1444 if (!lower)
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 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1447
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1448 /* 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	1449 if (TYPE(ch) == COLON) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1450 if (NCH(n) > 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1451 node *n2 = CHILD(n, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1452
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1453 if (TYPE(n2) == test) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1454 upper = ast_for_expr(c, n2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1455 if (!upper)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1456 return NULL;
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 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1459 } else if (NCH(n) > 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1460 node *n2 = CHILD(n, 2);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1461
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1462 if (TYPE(n2) == test) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1463 upper = ast_for_expr(c, n2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1464 if (!upper)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1465 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1466 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1467 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1468
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1469 ch = CHILD(n, NCH(n) - 1);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1470 if (TYPE(ch) == sliceop) {
54727 0c357e3fc3d0 keep the slice.step field as NULL if no step expression is given Benjamin Peterson <benjamin@python.org> parents: 54702 diff changeset	1471 if (NCH(ch) != 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1472 ch = CHILD(ch, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1473 if (TYPE(ch) == test) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1474 step = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1475 if (!step)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1476 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1477 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1478 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1479 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1480
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	1481 return Slice(lower, upper, step, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1482 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1483
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1484 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1485 ast_for_binop(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1486 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1487 /* Must account for a sequence of expressions.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1488 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	1489 BinOp(BinOp(A, op, B), op, C).
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1490 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1491
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1492 int i, nops;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1493 expr_ty expr1, expr2, result;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1494 operator_ty newoperator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1495
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1496 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	1497 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1498 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1499
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1500 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	1501 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1502 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1503
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1504 newoperator = get_operator(CHILD(n, 1));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1505 if (!newoperator)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1506 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1507
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1508 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	1509 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1510 if (!result)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1511 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1512
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1513 nops = (NCH(n) - 1) / 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1514 for (i = 1; i < nops; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1515 expr_ty tmp_result, tmp;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1516 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	1517
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1518 newoperator = get_operator(next_oper);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1519 if (!newoperator)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1520 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1521
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1522 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	1523 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1524 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1525
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1526 tmp_result = BinOp(result, newoperator, tmp,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1527 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	1528 c->c_arena);
43470 995677219a65 Fix Coverity #158: Check the correct variable. Neal Norwitz <nnorwitz@gmail.com> parents: 42459 diff changeset	1529 if (!tmp_result)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1530 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1531 result = tmp_result;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1532 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1533 return result;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1534 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1535
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1536 static expr_ty
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1537 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	1538 {
36686 8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1539 /* trailer: '(' [arglist] ')' \| '[' subscriptlist ']' \| '.' NAME
8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1540 subscriptlist: subscript (',' subscript)* [',']
8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1541 subscript: '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
8611f39cd82b Fix parsing of subscriptlist. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36682 diff changeset	1542 */
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1543 REQ(n, trailer);
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1544 if (TYPE(CHILD(n, 0)) == LPAR) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1545 if (NCH(n) == 2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1546 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	1547 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1548 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1549 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	1550 }
36679 e1391910b026 Simplify ast_for_trailer() in anticipation of more changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36676 diff changeset	1551 else if (TYPE(CHILD(n, 0)) == DOT ) {
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1552 PyObject *attr_id = NEW_IDENTIFIER(CHILD(n, 1));
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1553 if (!attr_id)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1554 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	1555 return Attribute(left_expr, attr_id, Load,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1556 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	1557 }
e1391910b026 Simplify ast_for_trailer() in anticipation of more changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 36676 diff changeset	1558 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1559 REQ(CHILD(n, 0), LSQB);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1560 REQ(CHILD(n, 2), RSQB);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1561 n = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1562 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1563 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	1564 if (!slc)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1565 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1566 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	1567 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1568 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1569 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1570 /* 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	1571 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	1572 no slice features.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1573 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1574 int j;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1575 slice_ty slc;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1576 expr_ty e;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1577 bool simple = true;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1578 asdl_seq slices, elts;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1579 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	1580 if (!slices)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1581 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1582 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	1583 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	1584 if (!slc)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1585 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1586 if (slc->kind != Index_kind)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1587 simple = false;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1588 asdl_seq_SET(slices, j / 2, slc);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1589 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1590 if (!simple) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1591 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	1592 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	1593 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1594 /* 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	1595 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	1596 if (!elts)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1597 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1598 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	1599 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	1600 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	1601 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	1602 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1603 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	1604 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1605 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1606 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	1607 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	1608 }
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1609 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1610 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1611
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1612 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	1613 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	1614 {
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1615 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	1616 expr_ty expression;
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1617
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1618 /* 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	1619 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	1620 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	1621 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	1622 (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	1623 PyLongObject.
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1624 */
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1625 if (TYPE(CHILD(n, 0)) == MINUS &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1626 NCH(n) == 2 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1627 TYPE((pfactor = CHILD(n, 1))) == factor &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1628 NCH(pfactor) == 1 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1629 TYPE((ppower = CHILD(pfactor, 0))) == power &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1630 NCH(ppower) == 1 &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1631 TYPE((patom = CHILD(ppower, 0))) == atom &&
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1632 TYPE((pnum = CHILD(patom, 0))) == NUMBER) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1633 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	1634 if (s == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1635 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1636 s[0] = '-';
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1637 strcpy(s + 1, STR(pnum));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1638 PyObject_FREE(STR(pnum));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1639 STR(pnum) = s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1640 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	1641 }
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1642
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1643 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	1644 if (!expression)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1645 return NULL;
39038 64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1646
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1647 switch (TYPE(CHILD(n, 0))) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1648 case PLUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1649 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	1650 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1651 case MINUS:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1652 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	1653 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1654 case TILDE:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1655 return UnaryOp(Invert, expression, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1656 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	1657 }
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1658 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	1659 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	1660 return NULL;
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1661 }
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1662
64ccd745ea92 Fix SF bug 1441486: bad unary minus folding in compiler. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 39037 diff changeset	1663 static expr_ty
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1664 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	1665 {
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1666 /* power: atom trailer* ('*' factor)
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1667 */
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1668 int i;
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1669 expr_ty e, tmp;
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1670 REQ(n, power);
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1671 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	1672 if (!e)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1673 return NULL;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1674 if (NCH(n) == 1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1675 return e;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1676 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	1677 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1678 if (TYPE(ch) != trailer)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1679 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1680 tmp = ast_for_trailer(c, ch, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1681 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1682 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1683 tmp->lineno = e->lineno;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1684 tmp->col_offset = e->col_offset;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1685 e = tmp;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1686 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1687 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	1688 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	1689 if (!f)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1690 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1691 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	1692 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1693 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1694 e = tmp;
35799 842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1695 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1696 return e;
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1697 }
842caa245917 Refactor code for translating "power" nodes. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35798 diff changeset	1698
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1699 /* 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	1700 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1701
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1702 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1703 ast_for_expr(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1704 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1705 /* 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	1706 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	1707 or_test: and_test ('or' and_test)*
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1708 and_test: not_test ('and' not_test)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1709 not_test: 'not' not_test \| comparison
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1710 comparison: expr (comp_op expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1711 expr: xor_expr ('\|' xor_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1712 xor_expr: and_expr ('^' and_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1713 and_expr: shift_expr ('&' shift_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1714 shift_expr: arith_expr (('<<'\|'>>') arith_expr)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1715 arith_expr: term (('+'\|'-') term)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1716 term: factor ((''\|'/'\|'%'\|'//') factor)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1717 factor: ('+'\|'-'\|'~') factor \| power
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1718 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	1719
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1720 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	1721 to explicitly allow:
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1722 [ 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	1723 (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	1724
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36444 diff changeset	1725 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	1726 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	1727
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1728 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1729
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1730 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1731 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1732
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1733 loop:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1734 switch (TYPE(n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1735 case test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1736 case old_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1737 if (TYPE(CHILD(n, 0)) == lambdef \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1738 TYPE(CHILD(n, 0)) == old_lambdef)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1739 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	1740 else if (NCH(n) > 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1741 return ast_for_ifexpr(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1742 /* Fallthrough */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1743 case or_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1744 case and_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1745 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1746 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1747 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1748 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1749 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	1750 if (!seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1751 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1752 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	1753 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	1754 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1755 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1756 asdl_seq_SET(seq, i / 2, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1757 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1758 if (!strcmp(STR(CHILD(n, 1)), "and"))
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1759 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	1760 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1761 assert(!strcmp(STR(CHILD(n, 1)), "or"));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1762 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	1763 case not_test:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1764 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1765 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1766 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1767 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1768 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1769 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	1770 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1771 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1772
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1773 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	1774 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1775 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1776 case comparison:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1777 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1778 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1779 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1780 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1781 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1782 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1783 asdl_int_seq *ops;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1784 asdl_seq *cmps;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1785 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	1786 if (!ops)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1787 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1788 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	1789 if (!cmps) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1790 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1791 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1792 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	1793 cmpop_ty newoperator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1794
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	1795 newoperator = ast_for_comp_op(c, CHILD(n, i));
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1796 if (!newoperator) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1797 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1798 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1799
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1800 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	1801 if (!expression) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1802 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1803 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1804
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1805 asdl_seq_SET(ops, i / 2, newoperator);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1806 asdl_seq_SET(cmps, i / 2, expression);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1807 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1808 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	1809 if (!expression) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1810 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1811 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1812
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1813 return Compare(expression, ops, cmps, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1814 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1815 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1816 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1817
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1818 /* 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	1819 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	1820 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	1821 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1822 case expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1823 case xor_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1824 case and_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1825 case shift_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1826 case arith_expr:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1827 case term:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1828 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1829 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1830 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1831 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1832 return ast_for_binop(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1833 case yield_expr: {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1834 expr_ty exp = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1835 if (NCH(n) == 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1836 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	1837 if (!exp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1838 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1839 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1840 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	1841 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1842 case factor:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1843 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1844 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1845 goto loop;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1846 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1847 return ast_for_factor(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1848 case power:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1849 return ast_for_power(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1850 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1851 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	1852 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1853 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1854 /* 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	1855 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1856 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1857
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1858 static expr_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1859 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	1860 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1861 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1862 arglist: (argument ',')* (argument [',']\| '' test [',' '*' test]
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1863 \| '**' test)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1864 argument: [test '='] test [gen_for] # Really [keyword '='] test
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1865 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1866
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1867 int i, nargs, nkeywords, ngens;
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1868 asdl_seq *args;
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	1869 asdl_seq *keywords;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1870 expr_ty vararg = NULL, kwarg = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1871
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1872 REQ(n, arglist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1873
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1874 nargs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1875 nkeywords = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1876 ngens = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1877 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	1878 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1879 if (TYPE(ch) == argument) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1880 if (NCH(ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1881 nargs++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1882 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	1883 ngens++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1884 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1885 nkeywords++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1886 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1887 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1888 if (ngens > 1 \|\| (ngens && (nargs \|\| nkeywords))) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1889 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	1890 "if not sole argument");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1891 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1892 }
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 if (nargs + nkeywords + ngens > 255) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1895 ast_error(n, "more than 255 arguments");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1896 return NULL;
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
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	1899 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	1900 if (!args)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1901 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	1902 keywords = asdl_seq_new(nkeywords, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1903 if (!keywords)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1904 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1905 nargs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1906 nkeywords = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1907 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	1908 node *ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1909 if (TYPE(ch) == argument) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1910 expr_ty e;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1911 if (NCH(ch) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1912 if (nkeywords) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1913 ast_error(CHILD(ch, 0),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1914 "non-keyword arg after keyword arg");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1915 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1916 }
48307 49f52e285a64 allow keyword args to be passed in after args #3473 Benjamin Peterson <benjamin@python.org>* parents: 47977 diff changeset	1917 if (vararg) {
49f52e285a64 allow keyword args to be passed in after args #3473 Benjamin Peterson <benjamin@python.org>* parents: 47977 diff changeset	1918 ast_error(CHILD(ch, 0),
49f52e285a64 allow keyword args to be passed in after args #3473 Benjamin Peterson <benjamin@python.org>* parents: 47977 diff changeset	1919 "only named arguments may follow *expression");
49f52e285a64 allow keyword args to be passed in after args #3473 Benjamin Peterson <benjamin@python.org>* parents: 47977 diff changeset	1920 return NULL;
49f52e285a64 allow keyword args to be passed in after args #3473 Benjamin Peterson <benjamin@python.org>* parents: 47977 diff changeset	1921 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1922 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	1923 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1924 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1925 asdl_seq_SET(args, nargs++, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1926 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1927 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	1928 e = ast_for_genexp(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1929 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1930 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1931 asdl_seq_SET(args, nargs++, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1932 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1933 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1934 keyword_ty kw;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1935 identifier key;
47860 80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1936 int k;
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1937 char *tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1938
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1939 /* 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	1940 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	1941 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1942 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1943 /* 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	1944 * 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	1945 * 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	1946 * then is very confusing.
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1947 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1948 if (e->kind == Lambda_kind) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1949 ast_error(CHILD(ch, 0),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1950 "lambda cannot contain assignment");
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 } else if (e->kind != Name_kind) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1953 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	1954 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1955 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1956 key = e->v.Name.id;
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	1957 if (!forbidden_check(c, CHILD(ch, 0), PyBytes_AS_STRING(key)))
41974 c8b0e3b8b456 Disallow function calls like foo(None=1). Georg Brandl <georg@python.org> parents: 41773 diff changeset	1958 return NULL;
47860 80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1959 for (k = 0; k < nkeywords; k++) {
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1960 tmp = PyString_AS_STRING(
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1961 ((keyword_ty)asdl_seq_GET(keywords, k))->arg);
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1962 if (!strcmp(tmp, PyString_AS_STRING(key))) {
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1963 ast_error(CHILD(ch, 0), "keyword argument repeated");
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1964 return NULL;
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1965 }
80109d4044cd #3219 repeated keyword arguments aren't allowed in function calls anymore Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1966 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1967 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	1968 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1969 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1970 kw = keyword(key, e, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1971 if (!kw)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1972 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1973 asdl_seq_SET(keywords, nkeywords++, kw);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1974 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1975 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1976 else if (TYPE(ch) == STAR) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1977 vararg = ast_for_expr(c, CHILD(n, i+1));
45661 ff3e9aeaa692 Issue#2238: some syntax errors from args or kwargs expressions Amaury Forgeot d'Arc <amauryfa@gmail.com>* parents: 45447 diff changeset	1978 if (!vararg)
ff3e9aeaa692 Issue#2238: some syntax errors from args or kwargs expressions Amaury Forgeot d'Arc <amauryfa@gmail.com>* parents: 45447 diff changeset	1979 return NULL;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1980 i++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1981 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1982 else if (TYPE(ch) == DOUBLESTAR) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1983 kwarg = ast_for_expr(c, CHILD(n, i+1));
45661 ff3e9aeaa692 Issue#2238: some syntax errors from args or kwargs expressions Amaury Forgeot d'Arc <amauryfa@gmail.com>* parents: 45447 diff changeset	1984 if (!kwarg)
ff3e9aeaa692 Issue#2238: some syntax errors from args or kwargs expressions Amaury Forgeot d'Arc <amauryfa@gmail.com>* parents: 45447 diff changeset	1985 return NULL;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1986 i++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1987 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1988 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1989
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	1990 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	1991 func->col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1992 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1993
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1994 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	1995 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	1996 {
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	1997 /* 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	1998 /* 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	1999 /* 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	2000 /* testlist1: test (',' test)* */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2001 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	2002 if (TYPE(n) == testlist_gexp) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2003 if (NCH(n) > 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2004 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	2005 }
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2006 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2007 assert(TYPE(n) == testlist \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2008 TYPE(n) == testlist_safe \|\|
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2009 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	2010 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2011 if (NCH(n) == 1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2012 return ast_for_expr(c, CHILD(n, 0));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2013 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2014 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	2015 if (!tmp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2016 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2017 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	2018 }
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2019 }
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2020
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2021 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	2022 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	2023 {
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2024 /* 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	2025 /* 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	2026 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	2027 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	2028 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	2029 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	2030 }
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2031
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2032 /* 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	2033 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	2034 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	2035 {
857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2036 /* 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	2037 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	2038 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	2039 if (NCH(n) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2040 expr_ty base;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2041 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	2042 if (!bases)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2043 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2044 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	2045 if (!base)
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 asdl_seq_SET(bases, 0, base);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2048 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	2049 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2050
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2051 return seq_for_testlist(c, n);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2052 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2053
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2054 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2055 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	2056 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2057 REQ(n, expr_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2058 /* 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	2059 \| ('=' (yield_expr\|testlist))*)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2060 testlist: test (',' test)* [',']
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2061 augassign: '+=' \| '-=' \| '*=' \| '/=' \| '%=' \| '&=' \| '\|=' \| '^='
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2062 \| '<<=' \| '>>=' \| '**=' \| '//='
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2063 test: ... here starts the operator precendence dance
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2064 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2065
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2066 if (NCH(n) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2067 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	2068 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2069 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2070
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2071 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	2072 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2073 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	2074 expr_ty expr1, expr2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2075 operator_ty newoperator;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2076 node *ch = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2077
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2078 expr1 = ast_for_testlist(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2079 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2080 return NULL;
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	2081 if(!set_context(c, expr1, Store, ch))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2082 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2083
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2084 ch = CHILD(n, 2);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2085 if (TYPE(ch) == testlist)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2086 expr2 = ast_for_testlist(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2087 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2088 expr2 = ast_for_expr(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2089 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2090 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2091
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	2092 newoperator = ast_for_augassign(c, CHILD(n, 1));
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2093 if (!newoperator)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2094 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2095
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2096 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	2097 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2098 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2099 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2100 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2101 asdl_seq *targets;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2102 node *value;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2103 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2104
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2105 /* a normal assignment */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2106 REQ(CHILD(n, 1), EQUAL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2107 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	2108 if (!targets)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2109 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2110 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	2111 expr_ty e;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2112 node *ch = CHILD(n, i);
54689 027444810e3f revert r73361 Benjamin Peterson <benjamin@python.org> parents: 54688 diff changeset	2113 if (TYPE(ch) == yield_expr) {
027444810e3f revert r73361 Benjamin Peterson <benjamin@python.org> parents: 54688 diff changeset	2114 ast_error(ch, "assignment to yield expression not possible");
027444810e3f revert r73361 Benjamin Peterson <benjamin@python.org> parents: 54688 diff changeset	2115 return NULL;
027444810e3f revert r73361 Benjamin Peterson <benjamin@python.org> parents: 54688 diff changeset	2116 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2117 e = ast_for_testlist(c, ch);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2118
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2119 /* set context to assign */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2120 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2121 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2122
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	2123 if (!set_context(c, e, Store, CHILD(n, i)))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2124 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2125
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2126 asdl_seq_SET(targets, i / 2, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2127 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2128 value = CHILD(n, NCH(n) - 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2129 if (TYPE(value) == testlist)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2130 expression = ast_for_testlist(c, value);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2131 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2132 expression = ast_for_expr(c, value);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2133 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2134 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2135 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	2136 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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2140 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2141 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	2142 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2143 /* print_stmt: 'print' ( [ test (',' test)* [','] ]
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2144 \| '>>' test [ (',' test)+ [','] ] )
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2145 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2146 expr_ty dest = NULL, expression;
54741 cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2147 asdl_seq *seq = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2148 bool nl;
54741 cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2149 int i, j, values_count, start = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2150
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2151 REQ(n, print_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2152 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	2153 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	2154 if (!dest)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2155 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2156 start = 4;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2157 }
54741 cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2158 values_count = (NCH(n) + 1 - start) / 2;
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2159 if (values_count) {
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2160 seq = asdl_seq_new(values_count, c->c_arena);
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2161 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2162 return NULL;
54741 cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2163 for (i = start, j = 0; i < NCH(n); i += 2, ++j) {
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2164 expression = ast_for_expr(c, CHILD(n, i));
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2165 if (!expression)
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2166 return NULL;
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2167 asdl_seq_SET(seq, j, expression);
cb66473cbbf8 set Print.values to NULL if there are no values Benjamin Peterson <benjamin@python.org> parents: 54732 diff changeset	2168 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2169 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2170 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	2171 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	2172 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2173
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2174 static asdl_seq *
37604 c732f66c913f Convert 0 to their respective enum types. Convert Martin v. Löwis <martin@v.loewis.de> parents: 37597 diff changeset	2175 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	2176 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2177 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2178 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2179 expr_ty e;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2180
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2181 REQ(n, exprlist);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2182
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	2183 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	2184 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2185 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2186 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	2187 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	2188 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2189 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2190 asdl_seq_SET(seq, i / 2, e);
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	2191 if (context && !set_context(c, e, context, CHILD(n, i)))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2192 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2193 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2194 return seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2195 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2196
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2197 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2198 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	2199 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2200 asdl_seq *expr_list;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2201
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2202 /* del_stmt: 'del' exprlist */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2203 REQ(n, del_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2204
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2205 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	2206 if (!expr_list)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2207 return NULL;
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2208 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	2209 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2210
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2211 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2212 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	2213 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2214 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2215 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	2216 \| yield_stmt
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2217 break_stmt: 'break'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2218 continue_stmt: 'continue'
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2219 return_stmt: 'return' [testlist]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2220 yield_stmt: yield_expr
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2221 yield_expr: 'yield' testlist
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2222 raise_stmt: 'raise' [test [',' test [',' test]]]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2223 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2224 node *ch;
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 REQ(n, flow_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2227 ch = CHILD(n, 0);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2228 switch (TYPE(ch)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2229 case break_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2230 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	2231 case continue_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2232 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	2233 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	2234 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	2235 if (!exp)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2236 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2237 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	2238 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2239 case return_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2240 if (NCH(ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2241 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	2242 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2243 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	2244 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2245 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2246 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	2247 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2248 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2249 case raise_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2250 if (NCH(ch) == 1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2251 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	2252 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2253 else if (NCH(ch) == 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2254 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	2255 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2256 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2257 return Raise(expression, NULL, NULL, LINENO(n),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2258 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2259 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2260 else if (NCH(ch) == 4) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2261 expr_ty expr1, expr2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2262
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2263 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	2264 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2265 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2266 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	2267 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2268 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2269
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2270 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	2271 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2272 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2273 else if (NCH(ch) == 6) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2274 expr_ty expr1, expr2, expr3;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2275
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2276 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	2277 if (!expr1)
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 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	2280 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2281 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2282 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	2283 if (!expr3)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2284 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2285
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2286 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	2287 c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2288 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2289 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2290 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2291 "unexpected flow_stmt: %d", TYPE(ch));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2292 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2293 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2294
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2295 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	2296 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2297 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2298
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2299 static alias_ty
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2300 alias_for_import_name(struct compiling c, const node n, int store)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2301 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2302 /*
36742 658f8ff2a442 Make 'as' an actual keyword when with's future statement is used. Not Thomas Wouters <thomas@python.org> parents: 36718 diff changeset	2303 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	2304 dotted_as_name: dotted_name ['as' NAME]
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2305 dotted_name: NAME ('.' NAME)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2306 */
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2307 PyObject str, name;
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	2308
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2309 loop:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2310 switch (TYPE(n)) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2311 case import_as_name: {
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2312 node *name_node = CHILD(n, 0);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2313 str = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2314 if (NCH(n) == 3) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2315 node *str_node = CHILD(n, 2);
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2316 if (store && !forbidden_check(c, str_node, STR(str_node)))
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2317 return NULL;
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2318 str = NEW_IDENTIFIER(str_node);
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2319 if (!str)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2320 return NULL;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2321 }
54732 04ccec0441b2 allow importing from a module named None if it has an 'as' clause Benjamin Peterson <benjamin@python.org> parents: 54728 diff changeset	2322 else {
04ccec0441b2 allow importing from a module named None if it has an 'as' clause Benjamin Peterson <benjamin@python.org> parents: 54728 diff changeset	2323 if (!forbidden_check(c, name_node, STR(name_node)))
04ccec0441b2 allow importing from a module named None if it has an 'as' clause Benjamin Peterson <benjamin@python.org> parents: 54728 diff changeset	2324 return NULL;
04ccec0441b2 allow importing from a module named None if it has an 'as' clause Benjamin Peterson <benjamin@python.org> parents: 54728 diff changeset	2325 }
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2326 name = NEW_IDENTIFIER(name_node);
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2327 if (!name)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2328 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2329 return alias(name, str, c->c_arena);
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2330 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2331 case dotted_as_name:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2332 if (NCH(n) == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2333 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2334 goto loop;
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 else {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2337 node *asname_node = CHILD(n, 2);
54732 04ccec0441b2 allow importing from a module named None if it has an 'as' clause Benjamin Peterson <benjamin@python.org> parents: 54728 diff changeset	2338 alias_ty a = alias_for_import_name(c, CHILD(n, 0), 0);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2339 if (!a)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2340 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2341 assert(!a->asname);
54732 04ccec0441b2 allow importing from a module named None if it has an 'as' clause Benjamin Peterson <benjamin@python.org> parents: 54728 diff changeset	2342 if (!forbidden_check(c, asname_node, STR(asname_node)))
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2343 return NULL;
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2344 a->asname = NEW_IDENTIFIER(asname_node);
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2345 if (!a->asname)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2346 return NULL;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2347 return a;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2348 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2349 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2350 case dotted_name:
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2351 if (NCH(n) == 1) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2352 node *name_node = CHILD(n, 0);
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2353 if (store && !forbidden_check(c, name_node, STR(name_node)))
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2354 return NULL;
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2355 name = NEW_IDENTIFIER(name_node);
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2356 if (!name)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2357 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2358 return alias(name, NULL, c->c_arena);
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	2359 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2360 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2361 /* 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	2362 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2363 size_t len;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2364 char *s;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2365
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2366 len = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2367 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	2368 /* 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	2369 len += strlen(STR(CHILD(n, i))) + 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2370 len--; /* the last name doesn't have a dot */
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	2371 str = PyString_FromStringAndSize(NULL, len);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2372 if (!str)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2373 return NULL;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	2374 s = PyString_AS_STRING(str);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2375 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2376 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2377 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	2378 char *sch = STR(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2379 strcpy(s, STR(CHILD(n, i)));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2380 s += strlen(sch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2381 *s++ = '.';
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2382 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2383 --s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2384 *s = '\0';
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	2385 PyString_InternInPlace(&str);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2386 PyArena_AddPyObject(c->c_arena, str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2387 return alias(str, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2388 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2389 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2390 case STAR:
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	2391 str = PyString_InternFromString("*");
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2392 PyArena_AddPyObject(c->c_arena, str);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2393 return alias(str, NULL, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2394 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2395 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2396 "unexpected import name: %d", TYPE(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2397 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2398 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2399
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2400 PyErr_SetString(PyExc_SystemError, "unhandled import name condition");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2401 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2402 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2403
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2404 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2405 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	2406 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2407 /*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2408 import_stmt: import_name \| import_from
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2409 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	2410 import_from: 'from' ('.'* dotted_name \| '.') 'import'
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2411 ('*' \| '(' import_as_names ')' \| import_as_names)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2412 */
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2413 int lineno;
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2414 int col_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2415 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2416 asdl_seq *aliases;
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 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	2419 lineno = LINENO(n);
57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2420 col_offset = n->n_col_offset;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2421 n = CHILD(n, 0);
36682 52cbc447e1c9 And some more cleanup. Thomas Wouters <thomas@python.org> parents: 36681 diff changeset	2422 if (TYPE(n) == import_name) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2423 n = CHILD(n, 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2424 REQ(n, dotted_as_names);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2425 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	2426 if (!aliases)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2427 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2428 for (i = 0; i < NCH(n); i += 2) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2429 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i), 1);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2430 if (!import_alias)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2431 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2432 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	2433 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2434 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	2435 }
36682 52cbc447e1c9 And some more cleanup. Thomas Wouters <thomas@python.org> parents: 36681 diff changeset	2436 else if (TYPE(n) == import_from) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2437 int n_children;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2438 int idx, ndots = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2439 alias_ty mod = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2440 identifier modname;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2441
36712 5c36c222e7ca SF patch #1438387, PEP 328: relative and absolute imports. Thomas Wouters <thomas@python.org> parents: 36695 diff changeset	2442 /* 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	2443 optional module name */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2444 for (idx = 1; idx < NCH(n); idx++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2445 if (TYPE(CHILD(n, idx)) == dotted_name) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2446 mod = alias_for_import_name(c, CHILD(n, idx), 0);
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2447 if (!mod)
788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2448 return NULL;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2449 idx++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2450 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2451 } else if (TYPE(CHILD(n, idx)) != DOT) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2452 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2453 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2454 ndots++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2455 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2456 idx++; /* skip over the 'import' keyword */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2457 switch (TYPE(CHILD(n, idx))) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2458 case STAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2459 /* from ... import * */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2460 n = CHILD(n, idx);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2461 n_children = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2462 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2463 case LPAR:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2464 /* from ... import (x, y, z) */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2465 n = CHILD(n, idx + 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2466 n_children = NCH(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2467 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2468 case import_as_names:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2469 /* from ... import x, y, z */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2470 n = CHILD(n, idx);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2471 n_children = NCH(n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2472 if (n_children % 2 == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2473 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	2474 " surrounding parentheses");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2475 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2476 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2477 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2478 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2479 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	2480 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2481 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2482
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2483 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	2484 if (!aliases)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2485 return NULL;
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 /* 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	2488 if (TYPE(n) == STAR) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2489 alias_ty import_alias = alias_for_import_name(c, n, 1);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2490 if (!import_alias)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2491 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2492 asdl_seq_SET(aliases, 0, import_alias);
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 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2495 for (i = 0; i < NCH(n); i += 2) {
54728 788e1397ce77 prevent import statements from assigning to None Benjamin Peterson <benjamin@python.org> parents: 54727 diff changeset	2496 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i), 1);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2497 if (!import_alias)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2498 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2499 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	2500 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2501 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2502 if (mod != NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2503 modname = mod->name;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2504 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2505 modname = new_identifier("", c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2506 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	2507 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2508 }
35870 f531c05cd240 Convert all internal errors from Exception to SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 35868 diff changeset	2509 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2510 "unknown import statement: starts with command '%s'",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2511 STR(CHILD(n, 0)));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2512 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2513 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2514
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2515 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2516 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	2517 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2518 /* global_stmt: 'global' NAME (',' NAME)* */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2519 identifier name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2520 asdl_seq *s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2521 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2522
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2523 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	2524 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	2525 if (!s)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2526 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2527 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	2528 name = NEW_IDENTIFIER(CHILD(n, i));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2529 if (!name)
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(s, i / 2, name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2532 }
36786 57322cb2ca11 Patch #1440601: Add col_offset attribute to AST nodes. Martin v. Löwis <martin@v.loewis.de> parents: 36780 diff changeset	2533 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	2534 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2535
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2536 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2537 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	2538 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2539 expr_ty expr1, globals = NULL, locals = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2540 int n_children = NCH(n);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2541 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	2542 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2543 "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	2544 n_children);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2545 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2546 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2547
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2548 /* exec_stmt: 'exec' expr ['in' test [',' test]] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2549 REQ(n, exec_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2550 expr1 = ast_for_expr(c, CHILD(n, 1));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2551 if (!expr1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2552 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2553 if (n_children >= 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2554 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	2555 if (!globals)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2556 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2557 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2558 if (n_children == 6) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2559 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	2560 if (!locals)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2561 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2562 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2563
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2564 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	2565 c->c_arena);
35742 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_assert_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 /* assert_stmt: 'assert' test [',' test] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2572 REQ(n, assert_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2573 if (NCH(n) == 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2574 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	2575 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2576 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2577 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	2578 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2579 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2580 else if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2581 expr_ty expr1, expr2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2582
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2583 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	2584 if (!expr1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2585 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2586 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	2587 if (!expr2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2588 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2589
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2590 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	2591 }
35870 f531c05cd240 Convert all internal errors from Exception to SystemError Neal Norwitz <nnorwitz@gmail.com> parents: 35868 diff changeset	2592 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2593 "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	2594 NCH(n));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2595 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2596 }
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 static asdl_seq *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2599 ast_for_suite(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2600 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2601 /* 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	2602 asdl_seq *seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2603 stmt_ty s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2604 int i, total, num, end, pos = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2605 node *ch;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2606
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2607 REQ(n, suite);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2608
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2609 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	2610 seq = asdl_seq_new(total, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2611 if (!seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2612 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2613 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	2614 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2615 /* simple_stmt always ends with a NEWLINE,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2616 and may have a trailing SEMI
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2617 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2618 end = NCH(n) - 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2619 if (TYPE(CHILD(n, end - 1)) == SEMI)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2620 end--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2621 /* loop by 2 to skip semi-colons */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2622 for (i = 0; i < end; i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2623 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2624 s = ast_for_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2625 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2626 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2627 asdl_seq_SET(seq, pos++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2628 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2629 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2630 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2631 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	2632 ch = CHILD(n, i);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2633 REQ(ch, stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2634 num = num_stmts(ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2635 if (num == 1) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2636 /* 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	2637 s = ast_for_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2638 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2639 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2640 asdl_seq_SET(seq, pos++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2641 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2642 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2643 int j;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2644 ch = CHILD(ch, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2645 REQ(ch, simple_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2646 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	2647 /* statement terminates with a semi-colon ';' */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2648 if (NCH(CHILD(ch, j)) == 0) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2649 assert((j + 1) == NCH(ch));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2650 break;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2651 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2652 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	2653 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2654 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2655 asdl_seq_SET(seq, pos++, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2656 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2657 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2658 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2659 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2660 assert(pos == seq->size);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2661 return seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2662 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2663
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2664 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2665 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	2666 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2667 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)*
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2668 ['else' ':' suite]
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2669 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2670 char *s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2671
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2672 REQ(n, if_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2673
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2674 if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2675 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2676 asdl_seq *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2677
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2678 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	2679 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2680 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2681 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	2682 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2683 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2684
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2685 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	2686 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2687 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2688
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2689 s = STR(CHILD(n, 4));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2690 /* 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	2691 's' for el_s_e, or
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2692 'i' for el_i_f
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 (s[2] == 's') {
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 seq1, seq2;
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 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	2702 if (!seq1)
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 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	2705 if (!seq2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2706 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2707
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2708 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	2709 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2710 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2711 else if (s[2] == 'i') {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2712 int i, n_elif, has_else = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2713 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2714 asdl_seq *suite_seq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2715 asdl_seq *orelse = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2716 n_elif = NCH(n) - 4;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2717 /* 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	2718 not fourth, child from the end. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2719 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	2720 && 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	2721 has_else = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2722 n_elif -= 3;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2723 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2724 n_elif /= 4;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2725
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2726 if (has_else) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2727 asdl_seq *suite_seq2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2728
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2729 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	2730 if (!orelse)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2731 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2732 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	2733 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2734 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2735 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	2736 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2737 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2738 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	2739 if (!suite_seq2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2740 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2741
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2742 asdl_seq_SET(orelse, 0,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2743 If(expression, suite_seq, suite_seq2,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2744 LINENO(CHILD(n, NCH(n) - 6)),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2745 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	2746 c->c_arena));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2747 /* 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	2748 n_elif--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2749 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2750
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2751 for (i = 0; i < n_elif; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2752 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	2753 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	2754 if (!newobj)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2755 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2756 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	2757 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2758 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2759 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	2760 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2761 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2762
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2763 asdl_seq_SET(newobj, 0,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2764 If(expression, suite_seq, orelse,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2765 LINENO(CHILD(n, off)),
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2766 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	2767 orelse = newobj;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2768 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2769 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	2770 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2771 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2772 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	2773 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2774 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2775 return If(expression, suite_seq, orelse,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2776 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	2777 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2778
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2779 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2780 "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	2781 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2782 }
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 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2785 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	2786 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2787 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2788 REQ(n, while_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2789
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2790 if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2791 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2792 asdl_seq *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2793
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2794 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	2795 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2796 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2797 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	2798 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2799 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2800 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	2801 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2802 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2803 else if (NCH(n) == 7) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2804 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2805 asdl_seq seq1, seq2;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2806
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2807 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	2808 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2809 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2810 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	2811 if (!seq1)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2812 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2813 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	2814 if (!seq2)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2815 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2816
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2817 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	2818 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2819 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2820
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2821 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2822 "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	2823 NCH(n));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2824 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2825 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2826
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2827 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2828 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	2829 {
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2830 asdl_seq _target, seq = NULL, *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2831 expr_ty expression;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2832 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	2833 const node *node_target;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2834 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2835 REQ(n, for_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2836
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2837 if (NCH(n) == 9) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2838 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	2839 if (!seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2840 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2841 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2842
39067 7182c2775c1e Bug #1520864: unpacking singleton tuples in for loop (for x, in) work again. Neal Norwitz <nnorwitz@gmail.com> parents: 39038 diff changeset	2843 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	2844 _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	2845 if (!_target)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2846 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	2847 /* 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	2848 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	2849 if (NCH(node_target) == 1)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2850 target = (expr_ty)asdl_seq_GET(_target, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2851 else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2852 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	2853
35798 857f68fba275 Write a separate ast_for_testlist_gexp() function instead of overloading Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35771 diff changeset	2854 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	2855 if (!expression)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2856 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2857 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	2858 if (!suite_seq)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2859 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2860
37453 16a64e394602 Add lineno, col_offset to excephandler to enable future fix for Jeremy Hylton <jeremy@alum.mit.edu> parents: 37235 diff changeset	2861 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	2862 c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2863 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2864
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2865 static excepthandler_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2866 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	2867 {
41773 f19e631be101 Backport PEP 3110's new 'except' syntax to 2.6. Collin Winter <collinw@gmail.com> parents: 41579 diff changeset	2868 /* except_clause: 'except' [test [(',' \| 'as') test]] */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2869 REQ(exc, except_clause);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2870 REQ(body, suite);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2871
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2872 if (NCH(exc) == 1) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2873 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	2874 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2875 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2876
46200 2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 46118 diff changeset	2877 return ExceptHandler(NULL, NULL, suite_seq, LINENO(exc),
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2878 exc->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2879 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2880 else if (NCH(exc) == 2) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2881 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2882 asdl_seq *suite_seq;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2883
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2884 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	2885 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2886 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2887 suite_seq = ast_for_suite(c, body);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2888 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2889 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2890
46200 2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 46118 diff changeset	2891 return ExceptHandler(expression, NULL, suite_seq, LINENO(exc),
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2892 exc->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2893 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2894 else if (NCH(exc) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2895 asdl_seq *suite_seq;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2896 expr_ty expression;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2897 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	2898 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2899 return NULL;
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	2900 if (!set_context(c, e, Store, CHILD(exc, 3)))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2901 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2902 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	2903 if (!expression)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2904 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2905 suite_seq = ast_for_suite(c, body);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2906 if (!suite_seq)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2907 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2908
46200 2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 46118 diff changeset	2909 return ExceptHandler(expression, e, suite_seq, LINENO(exc),
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2910 exc->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2911 }
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2912
de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2913 PyErr_Format(PyExc_SystemError,
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2914 "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	2915 NCH(exc));
36072 de16a85c3b4c Cleanup a bit and make things more consistent. Neal Norwitz <nnorwitz@gmail.com> parents: 36066 diff changeset	2916 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2917 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2918
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2919 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2920 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	2921 {
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2922 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	2923 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	2924 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	2925
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2926 REQ(n, try_stmt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2927
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2928 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	2929 if (body == NULL)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2930 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	2931
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2932 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	2933 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	2934 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	2935 /* we can assume it's an "else",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2936 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	2937 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	2938 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	2939 if (orelse == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2940 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2941 n_except--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2942 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2943
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2944 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	2945 if (finally == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2946 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2947 n_except--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2948 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2949 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2950 /* we can assume it's an "else",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2951 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	2952 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	2953 if (orelse == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2954 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2955 n_except--;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2956 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2957 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2958 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	2959 ast_error(n, "malformed 'try' statement");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2960 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2961 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2962
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2963 if (n_except > 0) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2964 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2965 stmt_ty except_st;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2966 /* 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	2967 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	2968 if (handlers == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2969 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	2970
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2971 for (i = 0; i < n_except; i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2972 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	2973 CHILD(n, 5 + i * 3));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2974 if (!e)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2975 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2976 asdl_seq_SET(handlers, i, e);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2977 }
36066 719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2978
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2979 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	2980 n->n_col_offset, c->c_arena);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2981 if (!finally)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2982 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	2983
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2984 /* 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	2985 TryFinally to emulate try ... except ... finally */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2986 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	2987 if (body == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2988 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	2989 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	2990 }
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2991
719ba02d2e2c SF patch #1355913, PEP 341 - Unification of try/except and try/finally Neal Norwitz <nnorwitz@gmail.com> parents: 36065 diff changeset	2992 /* 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	2993 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	2994 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	2995 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2996
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	2997 /* with_item: test ['as' expr] */
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	2998 static stmt_ty
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	2999 ast_for_with_item(struct compiling c, const node n, asdl_seq *content)
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3000 {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3001 expr_ty context_expr, optional_vars = NULL;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3002
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3003 REQ(n, with_item);
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3004 context_expr = ast_for_expr(c, CHILD(n, 0));
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	3005 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	3006 return NULL;
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3007 if (NCH(n) == 3) {
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3008 optional_vars = ast_for_expr(c, CHILD(n, 2));
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3009
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3010 if (!optional_vars) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3011 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3012 }
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3013 if (!set_context(c, optional_vars, Store, n)) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3014 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3015 }
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3016 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3017
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3018 return With(context_expr, optional_vars, content, LINENO(n),
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3019 n->n_col_offset, c->c_arena);
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3020 }
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3021
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3022 /* with_stmt: 'with' with_item (',' with_item)* ':' suite */
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3023 static stmt_ty
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3024 ast_for_with_stmt(struct compiling c, const node n)
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3025 {
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3026 int i;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3027 stmt_ty ret;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3028 asdl_seq *inner;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3029
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3030 REQ(n, with_stmt);
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3031
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3032 /* process the with items inside-out */
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3033 i = NCH(n) - 1;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3034 /* the suite of the innermost with item is the suite of the with stmt */
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3035 inner = ast_for_suite(c, CHILD(n, i));
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3036 if (!inner)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3037 return NULL;
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3038
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3039 for (;;) {
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3040 i -= 2;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3041 ret = ast_for_with_item(c, CHILD(n, i), inner);
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3042 if (!ret)
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3043 return NULL;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3044 /* was this the last item? */
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3045 if (i == 1)
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3046 break;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3047 /* if not, wrap the result so far in a new sequence */
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3048 inner = asdl_seq_new(1, c->c_arena);
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3049 if (!inner)
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3050 return NULL;
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3051 asdl_seq_SET(inner, 0, ret);
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3052 }
54337 16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3053
16759f62eb22 Allow multiple context managers in one with statement, as proposed Georg Brandl <georg@python.org> parents: 50830 diff changeset	3054 return ret;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3055 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36686 diff changeset	3056
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3057 static stmt_ty
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3058 ast_for_classdef(struct compiling c, const node n, asdl_seq *decorator_seq)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3059 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3060 /* classdef: 'class' NAME ['(' testlist ')'] ':' suite */
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3061 PyObject *classname;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3062 asdl_seq bases, s;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3063
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3064 REQ(n, classdef);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3065
47523 d56450db60a2 Warn about assigning to Py3k keywords (True and False) Benjamin Peterson <benjamin@python.org> parents: 47521 diff changeset	3066 if (!forbidden_check(c, n, STR(CHILD(n, 1))))
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3067 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3068
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3069 if (NCH(n) == 4) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3070 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	3071 if (!s)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3072 return NULL;
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3073 classname = NEW_IDENTIFIER(CHILD(n, 1));
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3074 if (!classname)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3075 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3076 return ClassDef(classname, NULL, s, decorator_seq, LINENO(n),
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3077 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3078 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3079 /* check for empty base list */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3080 if (TYPE(CHILD(n,3)) == RPAR) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3081 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	3082 if (!s)
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3083 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3084 classname = NEW_IDENTIFIER(CHILD(n, 1));
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3085 if (!classname)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3086 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3087 return ClassDef(classname, NULL, s, decorator_seq, LINENO(n),
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3088 n->n_col_offset, c->c_arena);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3089 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3090
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3091 /* 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	3092 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	3093 if (!bases)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3094 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3095
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3096 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	3097 if (!s)
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3098 return NULL;
49842 ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3099 classname = NEW_IDENTIFIER(CHILD(n, 1));
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3100 if (!classname)
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3101 return NULL;
ffad6c0f252e always check the return value of NEW_IDENTIFIER Benjamin Peterson <benjamin@python.org> parents: 49795 diff changeset	3102 return ClassDef(classname, bases, s, decorator_seq,
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3103 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	3104 }
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 static stmt_ty
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3107 ast_for_stmt(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3108 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3109 if (TYPE(n) == stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3110 assert(NCH(n) == 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3111 n = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3112 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3113 if (TYPE(n) == simple_stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3114 assert(num_stmts(n) == 1);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3115 n = CHILD(n, 0);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3116 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3117 if (TYPE(n) == small_stmt) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3118 n = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3119 /* 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	3120 \| 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	3121 \| assert_stmt
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3122 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3123 switch (TYPE(n)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3124 case expr_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3125 return ast_for_expr_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3126 case print_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3127 return ast_for_print_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3128 case del_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3129 return ast_for_del_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3130 case pass_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3131 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	3132 case flow_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3133 return ast_for_flow_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3134 case import_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3135 return ast_for_import_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3136 case global_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3137 return ast_for_global_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3138 case exec_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3139 return ast_for_exec_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3140 case assert_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3141 return ast_for_assert_stmt(c, n);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3142 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3143 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3144 "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	3145 TYPE(n), NCH(n));
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 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3148 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3149 else {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3150 /* compound_stmt: if_stmt \| while_stmt \| for_stmt \| try_stmt
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3151 \| funcdef \| classdef \| decorated
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3152 */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3153 node *ch = CHILD(n, 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3154 REQ(n, compound_stmt);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3155 switch (TYPE(ch)) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3156 case if_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3157 return ast_for_if_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3158 case while_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3159 return ast_for_while_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3160 case for_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3161 return ast_for_for_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3162 case try_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3163 return ast_for_try_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3164 case with_stmt:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3165 return ast_for_with_stmt(c, ch);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3166 case funcdef:
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3167 return ast_for_funcdef(c, ch, NULL);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3168 case classdef:
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3169 return ast_for_classdef(c, ch, NULL);
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3170 case decorated:
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 44747 diff changeset	3171 return ast_for_decorated(c, ch);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3172 default:
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3173 PyErr_Format(PyExc_SystemError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3174 "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	3175 TYPE(n), NCH(n));
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3176 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3177 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3178 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3179 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3180
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3181 static PyObject *
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3182 parsenumber(struct compiling c, const char s)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3183 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3184 const char *end;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3185 long x;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3186 double dx;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3187 #ifndef WITHOUT_COMPLEX
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3188 Py_complex complex;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3189 int imflag;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3190 #endif
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3191
50027 57b5c4639a5d Issue #4461: Safety check in parsenumber (ast.c) Mark Dickinson <dickinsm@gmail.com> parents: 49842 diff changeset	3192 assert(s != NULL);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3193 errno = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3194 end = s + strlen(s) - 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3195 #ifndef WITHOUT_COMPLEX
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3196 imflag = end == 'j' \|\| end == 'J';
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3197 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3198 if (end == 'l' \|\| end == 'L')
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3199 return PyLong_FromString((char )s, (char *)0, 0);
47977 c0ab2bafb264 Issue #3360: Fix incorrect parsing of "020000000000.0". Mark Dickinson <dickinsm@gmail.com> parents: 47860 diff changeset	3200 x = PyOS_strtol((char )s, (char *)&end, 0);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3201 if (*end == '\0') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3202 if (errno != 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3203 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	3204 return PyInt_FromLong(x);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3205 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3206 /* XXX Huge floats may silently fail */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3207 #ifndef WITHOUT_COMPLEX
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3208 if (imflag) {
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3209 complex.real = 0.;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3210 PyFPE_START_PROTECT("atof", return 0)
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3211 complex.imag = PyOS_ascii_atof(s);
0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3212 PyFPE_END_PROTECT(complex)
0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3213 return PyComplex_FromCComplex(complex);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3214 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3215 else
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3216 #endif
41215 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 PyFPE_START_PROTECT("atof", return 0)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3219 dx = PyOS_ascii_atof(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3220 PyFPE_END_PROTECT(dx)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3221 return PyFloat_FromDouble(dx);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3222 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3223 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3224
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3225 static PyObject *
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3226 decode_utf8(struct compiling c, const char sPtr, const char end, char* encoding)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3227 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3228 #ifndef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3229 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	3230 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3231 #else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3232 PyObject u, v;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3233 char s, t;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3234 t = s = (char )sPtr;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3235 /* 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	3236 while (s < end && (*s & 0x80)) s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3237 *sPtr = s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3238 u = PyUnicode_DecodeUTF8(t, s - t, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3239 if (u == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3240 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3241 v = PyUnicode_AsEncodedString(u, encoding, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3242 Py_DECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3243 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3244 #endif
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3245 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3246
42459 dbfc3cf1522d Place #ifdef Py_USING_UNICODE around decode_unicode(). Georg Brandl <georg@python.org> parents: 42308 diff changeset	3247 #ifdef Py_USING_UNICODE
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3248 static PyObject *
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3249 decode_unicode(struct compiling c, const char s, size_t len, int rawmode, const char *encoding)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3250 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3251 PyObject v, u;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3252 char *buf;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3253 char *p;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3254 const char *end;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3255 if (encoding == NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3256 buf = (char *)s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3257 u = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3258 } 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	3259 buf = (char *)s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3260 u = NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3261 } else {
47587 1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	3262 /* check for integer overflow */
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	3263 if (len > PY_SIZE_MAX / 4)
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	3264 return NULL;
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3265 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3266 u = PyString_FromStringAndSize((char )NULL, len 4);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3267 if (u == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3268 return NULL;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3269 p = buf = PyString_AsString(u);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3270 end = s + len;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3271 while (s < end) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3272 if (*s == '\\') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3273 p++ = s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3274 if (*s & 0x80) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3275 strcpy(p, "u005c");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3276 p += 5;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3277 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3278 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3279 if (s & 0x80) { / XXX inefficient */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3280 PyObject *w;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3281 char *r;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3282 Py_ssize_t rn, i;
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3283 w = decode_utf8(c, &s, end, "utf-16-be");
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3284 if (w == NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3285 Py_DECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3286 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3287 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3288 r = PyString_AsString(w);
52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3289 rn = PyString_Size(w);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3290 assert(rn % 2 == 0);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3291 for (i = 0; i < rn; i += 2) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3292 sprintf(p, "\\u%02x%02x",
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3293 r[i + 0] & 0xFF,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3294 r[i + 1] & 0xFF);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3295 p += 6;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3296 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3297 Py_DECREF(w);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3298 } else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3299 p++ = s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3300 }
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 len = p - buf;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3303 s = buf;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3304 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3305 if (rawmode)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3306 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3307 else
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3308 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3309 Py_XDECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3310 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3311 }
42459 dbfc3cf1522d Place #ifdef Py_USING_UNICODE around decode_unicode(). Georg Brandl <georg@python.org> parents: 42308 diff changeset	3312 #endif
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3313
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3314 /* 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	3315 * 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	3316 * 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	3317 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3318 static PyObject *
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3319 parsestr(struct compiling c, const char s)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3320 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3321 size_t len;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3322 int quote = Py_CHARMASK(*s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3323 int rawmode = 0;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3324 int need_encoding;
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3325 int unicode = c->c_future_unicode;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3326
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3327 if (isalpha(quote) \|\| quote == '_') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3328 if (quote == 'u' \|\| quote == 'U') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3329 quote = *++s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3330 unicode = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3331 }
44747 8da9ebf73026 Added bytes and b'' as aliases for str and '' Christian Heimes <christian@cheimes.de> parents: 44572 diff changeset	3332 if (quote == 'b' \|\| quote == 'B') {
8da9ebf73026 Added bytes and b'' as aliases for str and '' Christian Heimes <christian@cheimes.de> parents: 44572 diff changeset	3333 quote = *++s;
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3334 unicode = 0;
44747 8da9ebf73026 Added bytes and b'' as aliases for str and '' Christian Heimes <christian@cheimes.de> parents: 44572 diff changeset	3335 }
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3336 if (quote == 'r' \|\| quote == 'R') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3337 quote = *++s;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3338 rawmode = 1;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3339 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3340 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3341 if (quote != '\'' && quote != '\"') {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3342 PyErr_BadInternalCall();
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3343 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3344 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3345 s++;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3346 len = strlen(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3347 if (len > INT_MAX) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3348 PyErr_SetString(PyExc_OverflowError,
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3349 "string to parse is too long");
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3350 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3351 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3352 if (s[--len] != quote) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3353 PyErr_BadInternalCall();
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3354 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3355 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3356 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	3357 s += 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3358 len -= 2;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3359 if (s[--len] != quote \|\| s[--len] != quote) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3360 PyErr_BadInternalCall();
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3361 return NULL;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3362 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3363 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3364 #ifdef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3365 if (unicode \|\| Py_UnicodeFlag) {
46642 0deb4ab0426e The compiling struct is now passed around to all AST helpers (see issue 2720) Benjamin Peterson <benjamin@python.org> parents: 46200 diff changeset	3366 return decode_unicode(c, s, len, rawmode, c->c_encoding);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3367 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3368 #endif
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3369 need_encoding = (c->c_encoding != NULL &&
c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3370 strcmp(c->c_encoding, "utf-8") != 0 &&
c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3371 strcmp(c->c_encoding, "iso-8859-1") != 0);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3372 if (rawmode \|\| strchr(s, '\\') == NULL) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3373 if (need_encoding) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3374 #ifndef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3375 /* 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	3376 encoding. */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3377 Py_FatalError(
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3378 "cannot deal with encodings in this build.");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3379 #else
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3380 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	3381 if (u == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3382 return NULL;
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3383 v = PyUnicode_AsEncodedString(u, c->c_encoding, NULL);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3384 Py_DECREF(u);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3385 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3386 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3387 } else {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3388 return PyString_FromStringAndSize(s, len);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3389 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3390 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3391
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3392 return PyString_DecodeEscape(s, len, NULL, unicode,
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3393 need_encoding ? c->c_encoding : NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3394 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3395
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3396 /* 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	3397 * 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	3398 * pasting the intermediate results together.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3399 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3400 static PyObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3401 parsestrplus(struct compiling c, const node n)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3402 {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3403 PyObject *v;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3404 int i;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3405 REQ(CHILD(n, 0), STRING);
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3406 if ((v = parsestr(c, STR(CHILD(n, 0)))) != NULL) {
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3407 /* String literal concatenation */
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3408 for (i = 1; i < NCH(n); i++) {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3409 PyObject *s;
46118 c78d3586c474 Patch #2477: Added from __future__ import unicode_literals Christian Heimes <christian@cheimes.de> parents: 46075 diff changeset	3410 s = parsestr(c, STR(CHILD(n, i)));
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3411 if (s == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3412 goto onError;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3413 if (PyString_Check(v) && PyString_Check(s)) {
52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47524 diff changeset	3414 PyString_ConcatAndDel(&v, s);
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3415 if (v == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3416 goto onError;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3417 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3418 #ifdef Py_USING_UNICODE
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3419 else {
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3420 PyObject *temp = PyUnicode_Concat(v, s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3421 Py_DECREF(s);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3422 Py_DECREF(v);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3423 v = temp;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3424 if (v == NULL)
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3425 goto onError;
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3426 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3427 #endif
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3428 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3429 }
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3430 return v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3431
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3432 onError:
41215 72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3433 Py_XDECREF(v);
72da48d96257 Clean up formatting of this file. Jeremy Hylton <jeremy@alum.mit.edu> parents: 41205 diff changeset	3434 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3435 }

Mercurial > cpython-lru_cache-weakref

annotate Python/ast.c @ 54741:cb66473cbbf8 legacy-trunk