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

annotate Python/symtable.c @ 80239:ab02cd145f56 3.3

Issue #5765: Apply a hard recursion limit in the compiler Previously, excessive nesting in expressions would blow the stack and segfault the interpreter. Now, a hard limit based on the configured recursion limit and a hardcoded scaling factor is applied.

author	Nick Coghlan <ncoghlan@gmail.com>
date	Sun, 04 Nov 2012 23:14:34 +1000
parents	6964a9b6c1ea
children	ffb2fa900cb7 bd1db93d76e1

rev	line source
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	1 #include "Python.h"
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	2 #include "Python-ast.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	3 #include "code.h"
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	4 #include "symtable.h"
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	5 #include "structmember.h"
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	6
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	7 /* error strings used for warnings */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	8 #define GLOBAL_AFTER_ASSIGN \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	9 "name '%.400s' is assigned to before global declaration"
21325 8a26bb369f53 Add a comment explaining the st_symbols cache. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21314 diff changeset	10
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	11 #define NONLOCAL_AFTER_ASSIGN \
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	12 "name '%.400s' is assigned to before nonlocal declaration"
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	13
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	14 #define GLOBAL_AFTER_USE \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	15 "name '%.400s' is used prior to global declaration"
21325 8a26bb369f53 Add a comment explaining the st_symbols cache. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21314 diff changeset	16
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	17 #define NONLOCAL_AFTER_USE \
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	18 "name '%.400s' is used prior to nonlocal declaration"
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	19
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	20 #define IMPORT_STAR_WARNING "import * only allowed at module level"
4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	21
36739 796d150e45a9 No need to export PySTEntry_New, it is only used in symtable.c Neal Norwitz <nnorwitz@gmail.com> parents: 36695 diff changeset	22 static PySTEntryObject *
48725 40c07a61e1c2 Merged revisions 65715,65724,65726,65732,65736-65739,65775 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48660 diff changeset	23 ste_new(struct symtable *st, identifier name, _Py_block_ty block,
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	24 void *key, int lineno, int col_offset)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	25 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	26 PySTEntryObject *ste = NULL;
78943 ad3824a90261 Closed reference leak of variable 'k' in function ste_new which wasn't decrefed in error cases Christian Heimes <christian@cheimes.de> parents: 73366 diff changeset	27 PyObject *k = NULL;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	28
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	29 k = PyLong_FromVoidPtr(key);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	30 if (k == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	31 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	32 ste = PyObject_New(PySTEntryObject, &PySTEntry_Type);
79009 99ab7006e466 Cleanup 'k' when the creation of PySTEntryObject fails. ad3824a90261 used to decref 'k' in too many error cases. Christian Heimes <christian@cheimes.de> parents: 79006 diff changeset	33 if (ste == NULL) {
99ab7006e466 Cleanup 'k' when the creation of PySTEntryObject fails. ad3824a90261 used to decref 'k' in too many error cases. Christian Heimes <christian@cheimes.de> parents: 79006 diff changeset	34 Py_DECREF(k);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	35 goto fail;
79009 99ab7006e466 Cleanup 'k' when the creation of PySTEntryObject fails. ad3824a90261 used to decref 'k' in too many error cases. Christian Heimes <christian@cheimes.de> parents: 79006 diff changeset	36 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	37 ste->ste_table = st;
79006 2888356cdd4e Partly revert ad3824a90261 and add comment about reference ownership Christian Heimes <christian@cheimes.de> parents: 78943 diff changeset	38 ste->ste_id = k; /* ste owns reference to k */
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	39
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	40 ste->ste_name = name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	41 Py_INCREF(name);
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	42
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	43 ste->ste_symbols = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	44 ste->ste_varnames = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	45 ste->ste_children = NULL;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	46
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	47 ste->ste_symbols = PyDict_New();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	48 if (ste->ste_symbols == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	49 goto fail;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	50
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	51 ste->ste_varnames = PyList_New(0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	52 if (ste->ste_varnames == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	53 goto fail;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	54
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	55 ste->ste_children = PyList_New(0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	56 if (ste->ste_children == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	57 goto fail;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	58
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	59 ste->ste_type = block;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	60 ste->ste_unoptimized = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	61 ste->ste_nested = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	62 ste->ste_free = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	63 ste->ste_varargs = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	64 ste->ste_varkeywords = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	65 ste->ste_opt_lineno = 0;
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	66 ste->ste_opt_col_offset = 0;
65564 8e6b7ab1e1a1 Merged revisions 85757 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 65393 diff changeset	67 ste->ste_tmpname = 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	68 ste->ste_lineno = lineno;
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	69 ste->ste_col_offset = col_offset;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	70
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	71 if (st->st_cur != NULL &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	72 (st->st_cur->ste_nested \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	73 st->st_cur->ste_type == FunctionBlock))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	74 ste->ste_nested = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	75 ste->ste_child_free = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	76 ste->ste_generator = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	77 ste->ste_returns_value = 0;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	78
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	79 if (PyDict_SetItem(st->st_blocks, ste->ste_id, (PyObject *)ste) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	80 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	81
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	82 return ste;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	83 fail:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	84 Py_XDECREF(ste);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	85 return NULL;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	86 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	87
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	88 static PyObject *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	89 ste_repr(PySTEntryObject *ste)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	90 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	91 return PyUnicode_FromFormat("<symtable entry %U(%ld), line %d>",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	92 ste->ste_name,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	93 PyLong_AS_LONG(ste->ste_id), ste->ste_lineno);
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	94 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	95
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	96 static void
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	97 ste_dealloc(PySTEntryObject *ste)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	98 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	99 ste->ste_table = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	100 Py_XDECREF(ste->ste_id);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	101 Py_XDECREF(ste->ste_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	102 Py_XDECREF(ste->ste_symbols);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	103 Py_XDECREF(ste->ste_varnames);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	104 Py_XDECREF(ste->ste_children);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	105 PyObject_Del(ste);
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	106 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	107
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	108 #define OFF(x) offsetof(PySTEntryObject, x)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	109
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	110 static PyMemberDef ste_memberlist[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	111 {"id", T_OBJECT, OFF(ste_id), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	112 {"name", T_OBJECT, OFF(ste_name), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	113 {"symbols", T_OBJECT, OFF(ste_symbols), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	114 {"varnames", T_OBJECT, OFF(ste_varnames), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	115 {"children", T_OBJECT, OFF(ste_children), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	116 {"optimized",T_INT, OFF(ste_unoptimized), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	117 {"nested", T_INT, OFF(ste_nested), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	118 {"type", T_INT, OFF(ste_type), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	119 {"lineno", T_INT, OFF(ste_lineno), READONLY},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	120 {NULL}
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	121 };
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	122
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	123 PyTypeObject PySTEntry_Type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	124 PyVarObject_HEAD_INIT(&PyType_Type, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	125 "symtable entry",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	126 sizeof(PySTEntryObject),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	127 0,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	128 (destructor)ste_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	129 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	130 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	131 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	132 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	133 (reprfunc)ste_repr, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	134 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	135 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	136 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	137 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	138 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	139 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	140 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	141 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	142 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	143 Py_TPFLAGS_DEFAULT, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	144 0, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	145 0, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	146 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	147 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	148 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	149 0, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	150 0, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	151 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	152 ste_memberlist, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	153 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	154 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	155 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	156 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	157 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	158 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	159 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	160 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	161 0, /* tp_new */
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	162 };
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	163
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	164 static int symtable_analyze(struct symtable *st);
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	165 static int symtable_warn(struct symtable st, char msg, int lineno);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	166 static int symtable_enter_block(struct symtable *st, identifier name,
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	167 _Py_block_ty block, void *ast, int lineno,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	168 int col_offset);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	169 static int symtable_exit_block(struct symtable st, void ast);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	170 static int symtable_visit_stmt(struct symtable *st, stmt_ty s);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	171 static int symtable_visit_expr(struct symtable *st, expr_ty s);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	172 static int symtable_visit_genexp(struct symtable *st, expr_ty s);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	173 static int symtable_visit_listcomp(struct symtable *st, expr_ty s);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	174 static int symtable_visit_setcomp(struct symtable *st, expr_ty s);
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	175 static int symtable_visit_dictcomp(struct symtable *st, expr_ty s);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	176 static int symtable_visit_arguments(struct symtable *st, arguments_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	177 static int symtable_visit_excepthandler(struct symtable *st, excepthandler_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	178 static int symtable_visit_alias(struct symtable *st, alias_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	179 static int symtable_visit_comprehension(struct symtable *st, comprehension_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	180 static int symtable_visit_keyword(struct symtable *st, keyword_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	181 static int symtable_visit_slice(struct symtable *st, slice_ty);
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	182 static int symtable_visit_params(struct symtable st, asdl_seq args);
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	183 static int symtable_visit_argannotations(struct symtable st, asdl_seq args);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	184 static int symtable_implicit_arg(struct symtable *st, int pos);
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	185 static int symtable_visit_annotations(struct symtable *st, stmt_ty s);
70438 9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	186 static int symtable_visit_withitem(struct symtable *st, withitem_ty item);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	187
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	188
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	189 static identifier top = NULL, lambda = NULL, genexpr = NULL,
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	190 listcomp = NULL, setcomp = NULL, dictcomp = NULL,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	191 __class__ = NULL, __locals__ = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	192
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	193 #define GET_IDENTIFIER(VAR) \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	194 ((VAR) ? (VAR) : ((VAR) = PyUnicode_InternFromString(# VAR)))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	195
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	196 #define DUPLICATE_ARGUMENT \
42801 41da49c97a59 Use unicode for error messages of duplicate args Neal Norwitz <nnorwitz@gmail.com> parents: 42455 diff changeset	197 "duplicate argument '%U' in function definition"
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	198
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	199 static struct symtable *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	200 symtable_new(void)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	201 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	202 struct symtable *st;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	203
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	204 st = (struct symtable *)PyMem_Malloc(sizeof(struct symtable));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	205 if (st == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	206 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	207
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	208 st->st_filename = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	209 st->st_blocks = NULL;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	210
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	211 if ((st->st_stack = PyList_New(0)) == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	212 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	213 if ((st->st_blocks = PyDict_New()) == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	214 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	215 st->st_cur = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	216 st->st_private = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	217 return st;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	218 fail:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	219 PySymtable_Free(st);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	220 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	221 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	222
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	223 /* When compiling the use of C stack is probably going to be a lot
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	224 lighter than when executing Python code but still can overflow
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	225 and causing a Python crash if not checked (e.g. eval("()"*300000)).
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	226 Using the current recursion limit for the compiler seems too
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	227 restrictive (it caused at least one test to fail) so a factor is
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	228 used to allow deeper recursion when compiling an expression.
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	229
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	230 Using a scaling factor means this should automatically adjust when
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	231 the recursion limit is adjusted for small or large C stack allocations.
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	232 */
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	233 #define COMPILER_STACK_FRAME_SCALE 3
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	234
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	235 struct symtable *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	236 PySymtable_Build(mod_ty mod, const char filename, PyFutureFeatures future)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	237 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	238 struct symtable *st = symtable_new();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	239 asdl_seq *seq;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	240 int i;
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	241 PyThreadState *tstate;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	242
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	243 if (st == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	244 return st;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	245 st->st_filename = filename;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	246 st->st_future = future;
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	247
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	248 /* Setup recursion depth check counters */
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	249 tstate = PyThreadState_GET();
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	250 if (!tstate) {
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	251 PySymtable_Free(st);
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	252 return NULL;
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	253 }
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	254 st->recursion_depth = tstate->recursion_depth * COMPILER_STACK_FRAME_SCALE;
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	255 st->recursion_limit = Py_GetRecursionLimit() * COMPILER_STACK_FRAME_SCALE;
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	256
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	257 /* Make the initial symbol information gathering pass */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	258 if (!GET_IDENTIFIER(top) \|\|
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	259 !symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0, 0)) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	260 PySymtable_Free(st);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	261 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	262 }
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	263
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	264 st->st_top = st->st_cur;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	265 st->st_cur->ste_unoptimized = OPT_TOPLEVEL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	266 switch (mod->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	267 case Module_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	268 seq = mod->v.Module.body;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	269 for (i = 0; i < asdl_seq_LEN(seq); i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	270 if (!symtable_visit_stmt(st,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	271 (stmt_ty)asdl_seq_GET(seq, i)))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	272 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	273 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	274 case Expression_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	275 if (!symtable_visit_expr(st, mod->v.Expression.body))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	276 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	277 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	278 case Interactive_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	279 seq = mod->v.Interactive.body;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	280 for (i = 0; i < asdl_seq_LEN(seq); i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	281 if (!symtable_visit_stmt(st,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	282 (stmt_ty)asdl_seq_GET(seq, i)))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	283 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	284 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	285 case Suite_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	286 PyErr_SetString(PyExc_RuntimeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	287 "this compiler does not handle Suites");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	288 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	289 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	290 if (!symtable_exit_block(st, (void *)mod)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	291 PySymtable_Free(st);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	292 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	293 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	294 /* Make the second symbol analysis pass */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	295 if (symtable_analyze(st))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	296 return st;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	297 PySymtable_Free(st);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	298 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	299 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	300 (void) symtable_exit_block(st, (void *)mod);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	301 PySymtable_Free(st);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	302 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	303 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	304
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	305 void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	306 PySymtable_Free(struct symtable *st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	307 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	308 Py_XDECREF(st->st_blocks);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	309 Py_XDECREF(st->st_stack);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	310 PyMem_Free((void *)st);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	311 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	312
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	313 PySTEntryObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	314 PySymtable_Lookup(struct symtable st, void key)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	315 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	316 PyObject k, v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	317
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	318 k = PyLong_FromVoidPtr(key);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	319 if (k == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	320 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	321 v = PyDict_GetItem(st->st_blocks, k);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	322 if (v) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	323 assert(PySTEntry_Check(v));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	324 Py_INCREF(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	325 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	326 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	327 PyErr_SetString(PyExc_KeyError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	328 "unknown symbol table entry");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	329 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	330
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	331 Py_DECREF(k);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	332 return (PySTEntryObject *)v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	333 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	334
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	335 int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	336 PyST_GetScope(PySTEntryObject ste, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	337 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	338 PyObject *v = PyDict_GetItem(ste->ste_symbols, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	339 if (!v)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	340 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	341 assert(PyLong_Check(v));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	342 return (PyLong_AS_LONG(v) >> SCOPE_OFFSET) & SCOPE_MASK;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	343 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	344
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	345
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	346 /* Analyze raw symbol information to determine scope of each name.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	347
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	348 The next several functions are helpers for symtable_analyze(),
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	349 which determines whether a name is local, global, or free. In addition,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	350 it determines which local variables are cell variables; they provide
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	351 bindings that are used for free variables in enclosed blocks.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	352
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	353 There are also two kinds of global variables, implicit and explicit. An
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	354 explicit global is declared with the global statement. An implicit
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	355 global is a free variable for which the compiler has found no binding
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	356 in an enclosing function scope. The implicit global is either a global
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	357 or a builtin. Python's module and class blocks use the xxx_NAME opcodes
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	358 to handle these names to implement slightly odd semantics. In such a
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	359 block, the name is treated as global until it is assigned to; then it
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	360 is treated as a local.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	361
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	362 The symbol table requires two passes to determine the scope of each name.
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	363 The first pass collects raw facts from the AST via the symtable_visit_*
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	364 functions: the name is a parameter here, the name is used but not defined
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	365 here, etc. The second pass analyzes these facts during a pass over the
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	366 PySTEntryObjects created during pass 1.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	367
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	368 When a function is entered during the second pass, the parent passes
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	369 the set of all name bindings visible to its children. These bindings
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	370 are used to determine if non-local variables are free or implicit globals.
41508 55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	371 Names which are explicitly declared nonlocal must exist in this set of
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	372 visible names - if they do not, a syntax error is raised. After doing
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	373 the local analysis, it analyzes each of its child blocks using an
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	374 updated set of name bindings.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	375
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	376 The children update the free variable set. If a local variable is added to
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	377 the free variable set by the child, the variable is marked as a cell. The
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	378 function object being defined must provide runtime storage for the variable
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	379 that may outlive the function's frame. Cell variables are removed from the
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	380 free set before the analyze function returns to its parent.
41508 55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	381
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	382 During analysis, the names are:
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	383 symbols: dict mapping from symbol names to flag values (including offset scope values)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	384 scopes: dict mapping from symbol names to scope values (no offset)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	385 local: set of all symbol names local to the current scope
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	386 bound: set of all symbol names local to a containing function scope
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	387 free: set of all symbol names referenced but not bound in child scopes
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	388 global: set of all symbol names explicitly declared as global
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	389 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	390
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	391 #define SET_SCOPE(DICT, NAME, I) { \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	392 PyObject *o = PyLong_FromLong(I); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	393 if (!o) \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	394 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	395 if (PyDict_SetItem((DICT), (NAME), o) < 0) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	396 Py_DECREF(o); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	397 return 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	398 } \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	399 Py_DECREF(o); \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	400 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	401
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	402 /* Decide on scope of name, given flags.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	403
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	404 The namespace dictionaries may be modified to record information
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	405 about the new name. For example, a new global will add an entry to
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	406 global. A name that was global can be changed to local.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	407 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	408
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	409 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	410 analyze_name(PySTEntryObject ste, PyObject scopes, PyObject *name, long flags,
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	411 PyObject bound, PyObject local, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	412 PyObject *global)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	413 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	414 if (flags & DEF_GLOBAL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	415 if (flags & DEF_PARAM) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	416 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	417 "name '%U' is parameter and global",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	418 name);
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	419 PyErr_SyntaxLocationEx(ste->ste_table->st_filename,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	420 ste->ste_lineno, ste->ste_col_offset);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	421
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	422 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	423 }
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	424 if (flags & DEF_NONLOCAL) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	425 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	426 "name '%U' is nonlocal and global",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	427 name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	428 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	429 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	430 SET_SCOPE(scopes, name, GLOBAL_EXPLICIT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	431 if (PySet_Add(global, name) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	432 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	433 if (bound && (PySet_Discard(bound, name) < 0))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	434 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	435 return 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	436 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	437 if (flags & DEF_NONLOCAL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	438 if (flags & DEF_PARAM) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	439 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	440 "name '%U' is parameter and nonlocal",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	441 name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	442 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	443 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	444 if (!bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	445 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	446 "nonlocal declaration not allowed at module level");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	447 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	448 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	449 if (!PySet_Contains(bound, name)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	450 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	451 "no binding for nonlocal '%U' found",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	452 name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	453
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	454 return 0;
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	455 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	456 SET_SCOPE(scopes, name, FREE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	457 ste->ste_free = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	458 return PySet_Add(free, name) >= 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	459 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	460 if (flags & DEF_BOUND) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	461 SET_SCOPE(scopes, name, LOCAL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	462 if (PySet_Add(local, name) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	463 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	464 if (PySet_Discard(global, name) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	465 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	466 return 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	467 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	468 /* If an enclosing block has a binding for this name, it
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	469 is a free variable rather than a global variable.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	470 Note that having a non-NULL bound implies that the block
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	471 is nested.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	472 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	473 if (bound && PySet_Contains(bound, name)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	474 SET_SCOPE(scopes, name, FREE);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	475 ste->ste_free = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	476 return PySet_Add(free, name) >= 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	477 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	478 /* If a parent has a global statement, then call it global
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	479 explicit? It could also be global implicit.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	480 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	481 if (global && PySet_Contains(global, name)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	482 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	483 return 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	484 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	485 if (ste->ste_nested)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	486 ste->ste_free = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	487 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	488 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	489 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	490
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	491 #undef SET_SCOPE
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	492
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	493 /* If a name is defined in free and also in locals, then this block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	494 provides the binding for the free variable. The name should be
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	495 marked CELL in this block and removed from the free list.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	496
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	497 Note that the current block's free variables are included in free.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	498 That's safe because no name can be free and local in the same scope.
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	499
43708 c34720777cb6 Bug #1356: Avoid using the C99 keyword 'restrict'. Martin v. Löwis <martin@v.loewis.de> parents: 43102 diff changeset	500 The 'restricted' argument may be set to a string to restrict the analysis
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	501 to the one variable whose name equals that string (e.g. "__class__").
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	502 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	503
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	504 static int
43708 c34720777cb6 Bug #1356: Avoid using the C99 keyword 'restrict'. Martin v. Löwis <martin@v.loewis.de> parents: 43102 diff changeset	505 analyze_cells(PyObject scopes, PyObject free, const char *restricted)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	506 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	507 PyObject name, v, *v_cell;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	508 int success = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	509 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	510
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	511 v_cell = PyLong_FromLong(CELL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	512 if (!v_cell)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	513 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	514 while (PyDict_Next(scopes, &pos, &name, &v)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	515 long scope;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	516 assert(PyLong_Check(v));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	517 scope = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	518 if (scope != LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	519 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	520 if (!PySet_Contains(free, name))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	521 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	522 if (restricted != NULL &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	523 PyUnicode_CompareWithASCIIString(name, restricted))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	524 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	525 /* Replace LOCAL with CELL for this name, and remove
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	526 from free. It is safe to replace the value of name
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	527 in the dict, because it will not cause a resize.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	528 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	529 if (PyDict_SetItem(scopes, name, v_cell) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	530 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	531 if (PySet_Discard(free, name) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	532 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	533 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	534 success = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	535 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	536 Py_DECREF(v_cell);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	537 return success;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	538 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	539
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	540 /* Check for illegal statements in unoptimized namespaces */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	541 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	542 check_unoptimized(const PySTEntryObject* ste) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	543 const char* trailer;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	544
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	545 if (ste->ste_type != FunctionBlock \|\| !ste->ste_unoptimized
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	546 \|\| !(ste->ste_free \|\| ste->ste_child_free))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	547 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	548
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	549 trailer = (ste->ste_child_free ?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	550 "contains a nested function with free variables" :
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	551 "is a nested function");
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	552
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	553 switch (ste->ste_unoptimized) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	554 case OPT_TOPLEVEL: /* import * at top-level is fine */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	555 return 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	556 case OPT_IMPORT_STAR:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	557 PyErr_Format(PyExc_SyntaxError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	558 "import * is not allowed in function '%U' because it %s",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	559 ste->ste_name, trailer);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	560 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	561 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	562
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	563 PyErr_SyntaxLocationEx(ste->ste_table->st_filename, ste->ste_opt_lineno,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	564 ste->ste_opt_col_offset);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	565 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	566 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	567
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	568 /* Enter the final scope information into the ste_symbols dict.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	569 *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	570 * All arguments are dicts. Modifies symbols, others are read-only.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	571 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	572 static int
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	573 update_symbols(PyObject symbols, PyObject scopes,
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	574 PyObject bound, PyObject free, int classflag)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	575 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	576 PyObject name = NULL, itr = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	577 PyObject v = NULL, v_scope = NULL, v_new = NULL, v_free = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	578 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	579
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	580 /* Update scope information for all symbols in this scope */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	581 while (PyDict_Next(symbols, &pos, &name, &v)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	582 long scope, flags;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	583 assert(PyLong_Check(v));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	584 flags = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	585 v_scope = PyDict_GetItem(scopes, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	586 assert(v_scope && PyLong_Check(v_scope));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	587 scope = PyLong_AS_LONG(v_scope);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	588 flags \|= (scope << SCOPE_OFFSET);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	589 v_new = PyLong_FromLong(flags);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	590 if (!v_new)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	591 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	592 if (PyDict_SetItem(symbols, name, v_new) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	593 Py_DECREF(v_new);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	594 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	595 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	596 Py_DECREF(v_new);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	597 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	598
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	599 /* Record not yet resolved free variables from children (if any) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	600 v_free = PyLong_FromLong(FREE << SCOPE_OFFSET);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	601 if (!v_free)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	602 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	603
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	604 itr = PyObject_GetIter(free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	605 if (!itr)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	606 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	607
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	608 while ((name = PyIter_Next(itr))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	609 v = PyDict_GetItem(symbols, name);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	610
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	611 /* Handle symbol that already exists in this scope */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	612 if (v) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	613 /* Handle a free variable in a method of
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	614 the class that has the same name as a local
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	615 or global in the class scope.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	616 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	617 if (classflag &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	618 PyLong_AS_LONG(v) & (DEF_BOUND \| DEF_GLOBAL)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	619 long flags = PyLong_AS_LONG(v) \| DEF_FREE_CLASS;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	620 v_new = PyLong_FromLong(flags);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	621 if (!v_new) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	622 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	623 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	624 if (PyDict_SetItem(symbols, name, v_new) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	625 Py_DECREF(v_new);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	626 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	627 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	628 Py_DECREF(v_new);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	629 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	630 /* It's a cell, or already free in this scope */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	631 Py_DECREF(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	632 continue;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	633 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	634 /* Handle global symbol */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	635 if (!PySet_Contains(bound, name)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	636 Py_DECREF(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	637 continue; /* it's a global */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	638 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	639 /* Propagate new free symbol up the lexical stack */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	640 if (PyDict_SetItem(symbols, name, v_free) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	641 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	642 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	643 Py_DECREF(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	644 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	645 Py_DECREF(itr);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	646 Py_DECREF(v_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	647 return 1;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	648 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	649 Py_XDECREF(v_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	650 Py_XDECREF(itr);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	651 Py_XDECREF(name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	652 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	653 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	654
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	655 /* Make final symbol table decisions for block of ste.
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	656
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	657 Arguments:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	658 ste -- current symtable entry (input/output)
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	659 bound -- set of variables bound in enclosing scopes (input). bound
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	660 is NULL for module blocks.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	661 free -- set of free variables in enclosed scopes (output)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	662 globals -- set of declared global variables in enclosing scopes (input)
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	663
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	664 The implementation uses two mutually recursive functions,
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	665 analyze_block() and analyze_child_block(). analyze_block() is
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	666 responsible for analyzing the individual names defined in a block.
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	667 analyze_child_block() prepares temporary namespace dictionaries
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	668 used to evaluated nested blocks.
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	669
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	670 The two functions exist because a child block should see the name
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	671 bindings of its enclosing blocks, but those bindings should not
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	672 propagate back to a parent block.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	673 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	674
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	675 static int
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	676 analyze_child_block(PySTEntryObject entry, PyObject bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	677 PyObject global, PyObject child_free);
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	678
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	679 static int
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	680 analyze_block(PySTEntryObject ste, PyObject bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	681 PyObject *global)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	682 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	683 PyObject name, v, local = NULL, scopes = NULL, *newbound = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	684 PyObject newglobal = NULL, newfree = NULL, *allfree = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	685 PyObject *temp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	686 int i, success = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	687 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	688
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	689 local = PySet_New(NULL); /* collect new names bound in block */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	690 if (!local)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	691 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	692 scopes = PyDict_New(); /* collect scopes defined for each name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	693 if (!scopes)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	694 goto error;
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	695
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	696 /* Allocate new global and bound variable dictionaries. These
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	697 dictionaries hold the names visible in nested blocks. For
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	698 ClassBlocks, the bound and global names are initialized
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	699 before analyzing names, because class bindings aren't
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	700 visible in methods. For other blocks, they are initialized
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	701 after names are analyzed.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	702 */
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	703
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	704 /* TODO(jhylton): Package these dicts in a struct so that we
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	705 can write reasonable helper functions?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	706 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	707 newglobal = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	708 if (!newglobal)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	709 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	710 newfree = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	711 if (!newfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	712 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	713 newbound = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	714 if (!newbound)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	715 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	716
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	717 /* Class namespace has no effect on names visible in
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	718 nested functions, so populate the global and bound
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	719 sets to be passed to child blocks before analyzing
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	720 this one.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	721 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	722 if (ste->ste_type == ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	723 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	724 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	725 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	726 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	727 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	728 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	729 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	730 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	731 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	732 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	733 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	734 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	735 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	736
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	737 while (PyDict_Next(ste->ste_symbols, &pos, &name, &v)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	738 long flags = PyLong_AS_LONG(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	739 if (!analyze_name(ste, scopes, name, flags,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	740 bound, local, free, global))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	741 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	742 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	743
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	744 /* Populate global and bound sets to be passed to children. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	745 if (ste->ste_type != ClassBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	746 /* Add function locals to bound set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	747 if (ste->ste_type == FunctionBlock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	748 temp = PyNumber_InPlaceOr(newbound, local);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	749 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	750 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	751 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	752 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	753 /* Pass down previously bound symbols */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	754 if (bound) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	755 temp = PyNumber_InPlaceOr(newbound, bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	756 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	757 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	758 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	759 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	760 /* Pass down known globals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	761 temp = PyNumber_InPlaceOr(newglobal, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	762 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	763 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	764 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	765 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	766 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	767 /* Special-case __class__ */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	768 if (!GET_IDENTIFIER(__class__))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	769 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	770 assert(PySet_Contains(local, __class__) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	771 if (PySet_Add(newbound, __class__) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	772 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	773 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	774
69231 b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code Eli Bendersky <eliben@gmail.com> parents: 68257 diff changeset	775 /* Recursively call analyze_child_block() on each child block.
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	776
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	777 newbound, newglobal now contain the names visible in
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	778 nested blocks. The free variables in the children will
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	779 be collected in allfree.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	780 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	781 allfree = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	782 if (!allfree)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	783 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	784 for (i = 0; i < PyList_GET_SIZE(ste->ste_children); ++i) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	785 PyObject *c = PyList_GET_ITEM(ste->ste_children, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	786 PySTEntryObject* entry;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	787 assert(c && PySTEntry_Check(c));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	788 entry = (PySTEntryObject*)c;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	789 if (!analyze_child_block(entry, newbound, newfree, newglobal,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	790 allfree))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	791 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	792 /* Check if any children have free variables */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	793 if (entry->ste_free \|\| entry->ste_child_free)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	794 ste->ste_child_free = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	795 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	796
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	797 temp = PyNumber_InPlaceOr(newfree, allfree);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	798 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	799 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	800 Py_DECREF(temp);
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	801
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	802 /* Check if any local variables must be converted to cell variables */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	803 if (ste->ste_type == FunctionBlock && !analyze_cells(scopes, newfree,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	804 NULL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	805 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	806 else if (ste->ste_type == ClassBlock && !analyze_cells(scopes, newfree,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	807 "__class__"))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	808 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	809 /* Records the results of the analysis in the symbol table entry */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	810 if (!update_symbols(ste->ste_symbols, scopes, bound, newfree,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	811 ste->ste_type == ClassBlock))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	812 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	813 if (!check_unoptimized(ste))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	814 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	815
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	816 temp = PyNumber_InPlaceOr(free, newfree);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	817 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	818 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	819 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	820 success = 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	821 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	822 Py_XDECREF(scopes);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	823 Py_XDECREF(local);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	824 Py_XDECREF(newbound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	825 Py_XDECREF(newglobal);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	826 Py_XDECREF(newfree);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	827 Py_XDECREF(allfree);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	828 if (!success)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	829 assert(PyErr_Occurred());
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	830 return success;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	831 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	832
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	833 static int
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	834 analyze_child_block(PySTEntryObject entry, PyObject bound, PyObject *free,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	835 PyObject global, PyObject child_free)
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	836 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	837 PyObject temp_bound = NULL, temp_global = NULL, *temp_free = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	838 PyObject *temp;
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	839
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	840 /* Copy the bound and global dictionaries.
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	841
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	842 These dictionary are used by all blocks enclosed by the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	843 current block. The analyze_block() call modifies these
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	844 dictionaries.
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	845
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	846 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	847 temp_bound = PySet_New(bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	848 if (!temp_bound)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	849 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	850 temp_free = PySet_New(free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	851 if (!temp_free)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	852 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	853 temp_global = PySet_New(global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	854 if (!temp_global)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	855 goto error;
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	856
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	857 if (!analyze_block(entry, temp_bound, temp_free, temp_global))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	858 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	859 temp = PyNumber_InPlaceOr(child_free, temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	860 if (!temp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	861 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	862 Py_DECREF(temp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	863 Py_DECREF(temp_bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	864 Py_DECREF(temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	865 Py_DECREF(temp_global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	866 return 1;
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	867 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	868 Py_XDECREF(temp_bound);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	869 Py_XDECREF(temp_free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	870 Py_XDECREF(temp_global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	871 return 0;
52528 2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	872 }
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	873
2b436310fc8b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 51959 diff changeset	874 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	875 symtable_analyze(struct symtable *st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	876 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	877 PyObject free, global;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	878 int r;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	879
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	880 free = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	881 if (!free)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	882 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	883 global = PySet_New(NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	884 if (!global) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	885 Py_DECREF(free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	886 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	887 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	888 r = analyze_block(st->st_top, NULL, free, global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	889 Py_DECREF(free);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	890 Py_DECREF(global);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	891 return r;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	892 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	893
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	894
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	895 static int
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	896 symtable_warn(struct symtable st, char msg, int lineno)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	897 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	898 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, st->st_filename,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	899 lineno, NULL, NULL) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	900 if (PyErr_ExceptionMatches(PyExc_SyntaxWarning)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	901 PyErr_SetString(PyExc_SyntaxError, msg);
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	902 PyErr_SyntaxLocationEx(st->st_filename, st->st_cur->ste_lineno,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	903 st->st_cur->ste_col_offset);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	904 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	905 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	906 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	907 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	908 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	909
48725 40c07a61e1c2 Merged revisions 65715,65724,65726,65732,65736-65739,65775 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48660 diff changeset	910 /* symtable_enter_block() gets a reference via ste_new.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	911 This reference is released when the block is exited, via the DECREF
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	912 in symtable_exit_block().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	913 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	914
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	915 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	916 symtable_exit_block(struct symtable st, void ast)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	917 {
71087 151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	918 Py_ssize_t size;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	919
71087 151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	920 st->st_cur = NULL;
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	921 size = PyList_GET_SIZE(st->st_stack);
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	922 if (size) {
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	923 if (PyList_SetSlice(st->st_stack, size - 1, size, NULL) < 0)
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	924 return 0;
71129 6b3872a11299 fix possibily uninitialized memory usage (closes #12474) Benjamin Peterson <benjamin@python.org> parents: 71087 diff changeset	925 if (--size)
6b3872a11299 fix possibily uninitialized memory usage (closes #12474) Benjamin Peterson <benjamin@python.org> parents: 71087 diff changeset	926 st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack, size - 1);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	927 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	928 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	929 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	930
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	931 static int
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	932 symtable_enter_block(struct symtable *st, identifier name, _Py_block_ty block,
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	933 void *ast, int lineno, int col_offset)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	934 {
71087 151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	935 PySTEntryObject prev = NULL, ste;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	936
71087 151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	937 ste = ste_new(st, name, block, ast, lineno, col_offset);
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	938 if (ste == NULL)
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	939 return 0;
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	940 if (PyList_Append(st->st_stack, (PyObject *)ste) < 0) {
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	941 Py_DECREF(ste);
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	942 return 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	943 }
71087 151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	944 prev = st->st_cur;
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	945 /* The entry is owned by the stack. Borrow it for st_cur. */
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	946 Py_DECREF(ste);
151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	947 st->st_cur = ste;
65393 3618d9d7902d Merged revisions 85562 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 61467 diff changeset	948 if (block == ModuleBlock)
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	949 st->st_global = st->st_cur->ste_symbols;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	950 if (prev) {
71087 151142c0c5b1 store the current scope on the stack right away Benjamin Peterson <benjamin@python.org> parents: 71082 diff changeset	951 if (PyList_Append(prev->ste_children, (PyObject *)ste) < 0) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	952 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	953 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	954 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	955 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	956 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	957
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	958 static long
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	959 symtable_lookup(struct symtable st, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	960 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	961 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	962 PyObject *mangled = _Py_Mangle(st->st_private, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	963 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	964 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	965 o = PyDict_GetItem(st->st_cur->ste_symbols, mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	966 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	967 if (!o)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	968 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	969 return PyLong_AsLong(o);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	970 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	971
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	972 static int
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	973 symtable_add_def(struct symtable st, PyObject name, int flag)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	974 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	975 PyObject *o;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	976 PyObject *dict;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	977 long val;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	978 PyObject *mangled = _Py_Mangle(st->st_private, name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	979
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	980
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	981 if (!mangled)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	982 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	983 dict = st->st_cur->ste_symbols;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	984 if ((o = PyDict_GetItem(dict, mangled))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	985 val = PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	986 if ((flag & DEF_PARAM) && (val & DEF_PARAM)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	987 /* Is it better to use 'mangled' or 'name' here? */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	988 PyErr_Format(PyExc_SyntaxError, DUPLICATE_ARGUMENT, name);
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	989 PyErr_SyntaxLocationEx(st->st_filename,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	990 st->st_cur->ste_lineno,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	991 st->st_cur->ste_col_offset);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	992 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	993 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	994 val \|= flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	995 } else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	996 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	997 o = PyLong_FromLong(val);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	998 if (o == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	999 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1000 if (PyDict_SetItem(dict, mangled, o) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1001 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1002 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1003 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1004 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1005
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1006 if (flag & DEF_PARAM) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1007 if (PyList_Append(st->st_cur->ste_varnames, mangled) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1008 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1009 } else if (flag & DEF_GLOBAL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1010 /* XXX need to update DEF_GLOBAL for other flags too;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1011 perhaps only DEF_FREE_GLOBAL */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1012 val = flag;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1013 if ((o = PyDict_GetItem(st->st_global, mangled))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1014 val \|= PyLong_AS_LONG(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1015 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1016 o = PyLong_FromLong(val);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1017 if (o == NULL)
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1018 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1019 if (PyDict_SetItem(st->st_global, mangled, o) < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1020 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1021 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1022 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1023 Py_DECREF(o);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1024 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1025 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1026 return 1;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1027
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1028 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1029 Py_DECREF(mangled);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1030 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1031 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1032
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1033 /* VISIT, VISIT_SEQ and VIST_SEQ_TAIL take an ASDL type as their second argument.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1034 They use the ASDL name to synthesize the name of the C type and the visit
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1035 function.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1036
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1037 VISIT_SEQ_TAIL permits the start of an ASDL sequence to be skipped, which is
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1038 useful if the first node in the sequence requires special treatment.
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1039
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1040 VISIT_QUIT macro returns the specified value exiting from the function but
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1041 first adjusts current recursion counter depth.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1042 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1043
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1044 #define VISIT_QUIT(ST, X) \
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1045 return --(ST)->recursion_depth,(X)
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1046
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1047 #define VISIT(ST, TYPE, V) \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1048 if (!symtable_visit_ ## TYPE((ST), (V))) \
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1049 VISIT_QUIT((ST), 0);
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1050
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1051 #define VISIT_SEQ(ST, TYPE, SEQ) { \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1052 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1053 asdl_seq seq = (SEQ); / avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1054 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1055 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1056 if (!symtable_visit_ ## TYPE((ST), elt)) \
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1057 VISIT_QUIT((ST), 0); \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1058 } \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1059 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1060
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1061 #define VISIT_SEQ_TAIL(ST, TYPE, SEQ, START) { \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1062 int i; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1063 asdl_seq seq = (SEQ); / avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1064 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1065 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1066 if (!symtable_visit_ ## TYPE((ST), elt)) \
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1067 VISIT_QUIT((ST), 0); \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1068 } \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1069 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1070
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1071 #define VISIT_KWONLYDEFAULTS(ST, KW_DEFAULTS) { \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1072 int i = 0; \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1073 asdl_seq seq = (KW_DEFAULTS); / avoid variable capture */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1074 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1075 expr_ty elt = (expr_ty)asdl_seq_GET(seq, i); \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1076 if (!elt) continue; /* can be NULL */ \
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1077 if (!symtable_visit_expr((ST), elt)) \
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1078 VISIT_QUIT((ST), 0); \
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1079 } \
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1080 }
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1081
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1082 static int
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1083 symtable_new_tmpname(struct symtable *st)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1084 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1085 char tmpname[256];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1086 identifier tmp;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1087
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1088 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1089 ++st->st_cur->ste_tmpname);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1090 tmp = PyUnicode_InternFromString(tmpname);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1091 if (!tmp)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1092 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1093 if (!symtable_add_def(st, tmp, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1094 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1095 Py_DECREF(tmp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1096 return 1;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1097 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1098
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1099
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1100 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1101 symtable_visit_stmt(struct symtable *st, stmt_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1102 {
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1103 if (++st->recursion_depth > st->recursion_limit) {
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1104 PyErr_SetString(PyExc_RuntimeError,
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1105 "maximum recursion depth exceeded during compilation");
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1106 VISIT_QUIT(st, 0);
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1107 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1108 switch (s->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1109 case FunctionDef_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1110 if (!symtable_add_def(st, s->v.FunctionDef.name, DEF_LOCAL))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1111 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1112 if (s->v.FunctionDef.args->defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1113 VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1114 if (s->v.FunctionDef.args->kw_defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1115 VISIT_KWONLYDEFAULTS(st,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1116 s->v.FunctionDef.args->kw_defaults);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1117 if (!symtable_visit_annotations(st, s))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1118 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1119 if (s->v.FunctionDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1120 VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1121 if (!symtable_enter_block(st, s->v.FunctionDef.name,
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1122 FunctionBlock, (void *)s, s->lineno,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1123 s->col_offset))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1124 VISIT_QUIT(st, 0);
71082 099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1125 VISIT(st, arguments, s->v.FunctionDef.args);
099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1126 VISIT_SEQ(st, stmt, s->v.FunctionDef.body);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1127 if (!symtable_exit_block(st, s))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1128 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1129 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1130 case ClassDef_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1131 PyObject *tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1132 if (!symtable_add_def(st, s->v.ClassDef.name, DEF_LOCAL))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1133 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1134 VISIT_SEQ(st, expr, s->v.ClassDef.bases);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1135 VISIT_SEQ(st, keyword, s->v.ClassDef.keywords);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1136 if (s->v.ClassDef.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1137 VISIT(st, expr, s->v.ClassDef.starargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1138 if (s->v.ClassDef.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1139 VISIT(st, expr, s->v.ClassDef.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1140 if (s->v.ClassDef.decorator_list)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1141 VISIT_SEQ(st, expr, s->v.ClassDef.decorator_list);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1142 if (!symtable_enter_block(st, s->v.ClassDef.name, ClassBlock,
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1143 (void *)s, s->lineno, s->col_offset))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1144 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1145 if (!GET_IDENTIFIER(__class__) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1146 !symtable_add_def(st, __class__, DEF_LOCAL) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1147 !GET_IDENTIFIER(__locals__) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1148 !symtable_add_def(st, __locals__, DEF_PARAM)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1149 symtable_exit_block(st, s);
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1150 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1151 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1152 tmp = st->st_private;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1153 st->st_private = s->v.ClassDef.name;
71082 099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1154 VISIT_SEQ(st, stmt, s->v.ClassDef.body);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1155 st->st_private = tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1156 if (!symtable_exit_block(st, s))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1157 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1158 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1159 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1160 case Return_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1161 if (s->v.Return.value) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1162 VISIT(st, expr, s->v.Return.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1163 st->st_cur->ste_returns_value = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1164 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1165 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1166 case Delete_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1167 VISIT_SEQ(st, expr, s->v.Delete.targets);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1168 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1169 case Assign_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1170 VISIT_SEQ(st, expr, s->v.Assign.targets);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1171 VISIT(st, expr, s->v.Assign.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1172 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1173 case AugAssign_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1174 VISIT(st, expr, s->v.AugAssign.target);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1175 VISIT(st, expr, s->v.AugAssign.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1176 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1177 case For_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1178 VISIT(st, expr, s->v.For.target);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1179 VISIT(st, expr, s->v.For.iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1180 VISIT_SEQ(st, stmt, s->v.For.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1181 if (s->v.For.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1182 VISIT_SEQ(st, stmt, s->v.For.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1183 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1184 case While_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1185 VISIT(st, expr, s->v.While.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1186 VISIT_SEQ(st, stmt, s->v.While.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1187 if (s->v.While.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1188 VISIT_SEQ(st, stmt, s->v.While.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1189 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1190 case If_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1191 /* XXX if 0: and lookup_yield() hacks */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1192 VISIT(st, expr, s->v.If.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1193 VISIT_SEQ(st, stmt, s->v.If.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1194 if (s->v.If.orelse)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1195 VISIT_SEQ(st, stmt, s->v.If.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1196 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1197 case Raise_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1198 if (s->v.Raise.exc) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1199 VISIT(st, expr, s->v.Raise.exc);
69231 b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code Eli Bendersky <eliben@gmail.com> parents: 68257 diff changeset	1200 if (s->v.Raise.cause) {
b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code Eli Bendersky <eliben@gmail.com> parents: 68257 diff changeset	1201 VISIT(st, expr, s->v.Raise.cause);
b6fe63c914e4 Issue #9904: fix and clarify some comments + fix indentation in symtable code Eli Bendersky <eliben@gmail.com> parents: 68257 diff changeset	1202 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1203 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1204 break;
70499 e0e663132363 unify TryExcept and TryFinally (closes #12199) Benjamin Peterson <benjamin@python.org> parents: 70438 diff changeset	1205 case Try_kind:
e0e663132363 unify TryExcept and TryFinally (closes #12199) Benjamin Peterson <benjamin@python.org> parents: 70438 diff changeset	1206 VISIT_SEQ(st, stmt, s->v.Try.body);
e0e663132363 unify TryExcept and TryFinally (closes #12199) Benjamin Peterson <benjamin@python.org> parents: 70438 diff changeset	1207 VISIT_SEQ(st, stmt, s->v.Try.orelse);
e0e663132363 unify TryExcept and TryFinally (closes #12199) Benjamin Peterson <benjamin@python.org> parents: 70438 diff changeset	1208 VISIT_SEQ(st, excepthandler, s->v.Try.handlers);
e0e663132363 unify TryExcept and TryFinally (closes #12199) Benjamin Peterson <benjamin@python.org> parents: 70438 diff changeset	1209 VISIT_SEQ(st, stmt, s->v.Try.finalbody);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1210 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1211 case Assert_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1212 VISIT(st, expr, s->v.Assert.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1213 if (s->v.Assert.msg)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1214 VISIT(st, expr, s->v.Assert.msg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1215 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1216 case Import_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1217 VISIT_SEQ(st, alias, s->v.Import.names);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1218 /* XXX Don't have the lineno available inside
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1219 visit_alias */
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1220 if (st->st_cur->ste_unoptimized && !st->st_cur->ste_opt_lineno) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1221 st->st_cur->ste_opt_lineno = s->lineno;
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1222 st->st_cur->ste_opt_col_offset = s->col_offset;
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1223 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1224 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1225 case ImportFrom_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1226 VISIT_SEQ(st, alias, s->v.ImportFrom.names);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1227 /* XXX Don't have the lineno available inside
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1228 visit_alias */
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1229 if (st->st_cur->ste_unoptimized && !st->st_cur->ste_opt_lineno) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1230 st->st_cur->ste_opt_lineno = s->lineno;
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1231 st->st_cur->ste_opt_col_offset = s->col_offset;
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1232 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1233 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1234 case Global_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1235 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1236 asdl_seq *seq = s->v.Global.names;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1237 for (i = 0; i < asdl_seq_LEN(seq); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1238 identifier name = (identifier)asdl_seq_GET(seq, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1239 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1240 if (cur < 0)
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1241 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1242 if (cur & (DEF_LOCAL \| USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1243 char buf[256];
80141 6964a9b6c1ea check return value of _PyUnicode_AsString Benjamin Peterson <benjamin@python.org> parents: 79010 diff changeset	1244 char *c_name = _PyUnicode_AsString(name);
6964a9b6c1ea check return value of _PyUnicode_AsString Benjamin Peterson <benjamin@python.org> parents: 79010 diff changeset	1245 if (!c_name)
6964a9b6c1ea check return value of _PyUnicode_AsString Benjamin Peterson <benjamin@python.org> parents: 79010 diff changeset	1246 return 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1247 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1248 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1249 GLOBAL_AFTER_ASSIGN,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1250 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1251 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1252 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1253 GLOBAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1254 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1255 if (!symtable_warn(st, buf, s->lineno))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1256 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1257 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1258 if (!symtable_add_def(st, name, DEF_GLOBAL))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1259 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1260 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1261 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1262 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1263 case Nonlocal_kind: {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1264 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1265 asdl_seq *seq = s->v.Nonlocal.names;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1266 for (i = 0; i < asdl_seq_LEN(seq); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1267 identifier name = (identifier)asdl_seq_GET(seq, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1268 long cur = symtable_lookup(st, name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1269 if (cur < 0)
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1270 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1271 if (cur & (DEF_LOCAL \| USE)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1272 char buf[256];
80141 6964a9b6c1ea check return value of _PyUnicode_AsString Benjamin Peterson <benjamin@python.org> parents: 79010 diff changeset	1273 char *c_name = _PyUnicode_AsString(name);
6964a9b6c1ea check return value of _PyUnicode_AsString Benjamin Peterson <benjamin@python.org> parents: 79010 diff changeset	1274 if (!c_name)
6964a9b6c1ea check return value of _PyUnicode_AsString Benjamin Peterson <benjamin@python.org> parents: 79010 diff changeset	1275 return 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1276 if (cur & DEF_LOCAL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1277 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1278 NONLOCAL_AFTER_ASSIGN,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1279 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1280 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1281 PyOS_snprintf(buf, sizeof(buf),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1282 NONLOCAL_AFTER_USE,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1283 c_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1284 if (!symtable_warn(st, buf, s->lineno))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1285 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1286 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1287 if (!symtable_add_def(st, name, DEF_NONLOCAL))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1288 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1289 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1290 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1291 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1292 case Expr_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1293 VISIT(st, expr, s->v.Expr.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1294 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1295 case Pass_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1296 case Break_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1297 case Continue_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1298 /* nothing to do here */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1299 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1300 case With_kind:
70438 9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1301 VISIT_SEQ(st, withitem, s->v.With.items);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1302 VISIT_SEQ(st, stmt, s->v.With.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1303 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1304 }
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1305 VISIT_QUIT(st, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1306 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1307
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1308 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1309 symtable_visit_expr(struct symtable *st, expr_ty e)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1310 {
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1311 if (++st->recursion_depth > st->recursion_limit) {
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1312 PyErr_SetString(PyExc_RuntimeError,
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1313 "maximum recursion depth exceeded during compilation");
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1314 VISIT_QUIT(st, 0);
ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1315 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1316 switch (e->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1317 case BoolOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1318 VISIT_SEQ(st, expr, e->v.BoolOp.values);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1319 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1320 case BinOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1321 VISIT(st, expr, e->v.BinOp.left);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1322 VISIT(st, expr, e->v.BinOp.right);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1323 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1324 case UnaryOp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1325 VISIT(st, expr, e->v.UnaryOp.operand);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1326 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1327 case Lambda_kind: {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57376 diff changeset	1328 if (!GET_IDENTIFIER(lambda))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1329 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1330 if (e->v.Lambda.args->defaults)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1331 VISIT_SEQ(st, expr, e->v.Lambda.args->defaults);
73366 1e0e821d2626 Issue #13343: Fix a SystemError when a lambda expression uses a global Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 70919 diff changeset	1332 if (e->v.Lambda.args->kw_defaults)
1e0e821d2626 Issue #13343: Fix a SystemError when a lambda expression uses a global Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 70919 diff changeset	1333 VISIT_KWONLYDEFAULTS(st,
1e0e821d2626 Issue #13343: Fix a SystemError when a lambda expression uses a global Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 70919 diff changeset	1334 e->v.Lambda.args->kw_defaults);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1335 if (!symtable_enter_block(st, lambda,
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1336 FunctionBlock, (void *)e, e->lineno,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1337 e->col_offset))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1338 VISIT_QUIT(st, 0);
71082 099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1339 VISIT(st, arguments, e->v.Lambda.args);
099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1340 VISIT(st, expr, e->v.Lambda.body);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1341 if (!symtable_exit_block(st, (void *)e))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1342 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1343 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1344 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1345 case IfExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1346 VISIT(st, expr, e->v.IfExp.test);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1347 VISIT(st, expr, e->v.IfExp.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1348 VISIT(st, expr, e->v.IfExp.orelse);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1349 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1350 case Dict_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1351 VISIT_SEQ(st, expr, e->v.Dict.keys);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1352 VISIT_SEQ(st, expr, e->v.Dict.values);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1353 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1354 case Set_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1355 VISIT_SEQ(st, expr, e->v.Set.elts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1356 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1357 case GeneratorExp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1358 if (!symtable_visit_genexp(st, e))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1359 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1360 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1361 case ListComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1362 if (!symtable_visit_listcomp(st, e))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1363 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1364 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1365 case SetComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1366 if (!symtable_visit_setcomp(st, e))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1367 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1368 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1369 case DictComp_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1370 if (!symtable_visit_dictcomp(st, e))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1371 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1372 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1373 case Yield_kind:
74391 e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780) Benjamin Peterson <benjamin@python.org> parents: 74356 diff changeset	1374 case YieldFrom_kind: {
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780) Benjamin Peterson <benjamin@python.org> parents: 74356 diff changeset	1375 expr_ty value;
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780) Benjamin Peterson <benjamin@python.org> parents: 74356 diff changeset	1376 value = (e->kind == YieldFrom_kind) ? e->v.YieldFrom.value : e->v.Yield.value;
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780) Benjamin Peterson <benjamin@python.org> parents: 74356 diff changeset	1377 if (value)
e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780) Benjamin Peterson <benjamin@python.org> parents: 74356 diff changeset	1378 VISIT(st, expr, value);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1379 st->st_cur->ste_generator = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1380 break;
74391 e1177b9167ce make YieldFrom its own distinct from Yield (closes #13780) Benjamin Peterson <benjamin@python.org> parents: 74356 diff changeset	1381 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1382 case Compare_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1383 VISIT(st, expr, e->v.Compare.left);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1384 VISIT_SEQ(st, expr, e->v.Compare.comparators);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1385 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1386 case Call_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1387 VISIT(st, expr, e->v.Call.func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1388 VISIT_SEQ(st, expr, e->v.Call.args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1389 VISIT_SEQ(st, keyword, e->v.Call.keywords);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1390 if (e->v.Call.starargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1391 VISIT(st, expr, e->v.Call.starargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1392 if (e->v.Call.kwargs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1393 VISIT(st, expr, e->v.Call.kwargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1394 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1395 case Num_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1396 case Str_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1397 case Bytes_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1398 case Ellipsis_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1399 /* Nothing to do here. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1400 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1401 /* The following exprs can be assignment targets. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1402 case Attribute_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1403 VISIT(st, expr, e->v.Attribute.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1404 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1405 case Subscript_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1406 VISIT(st, expr, e->v.Subscript.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1407 VISIT(st, slice, e->v.Subscript.slice);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1408 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1409 case Starred_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1410 VISIT(st, expr, e->v.Starred.value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1411 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1412 case Name_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1413 if (!symtable_add_def(st, e->v.Name.id,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1414 e->v.Name.ctx == Load ? USE : DEF_LOCAL))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1415 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1416 /* Special-case super: it counts as a use of __class__ */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1417 if (e->v.Name.ctx == Load &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1418 st->st_cur->ste_type == FunctionBlock &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1419 !PyUnicode_CompareWithASCIIString(e->v.Name.id, "super")) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1420 if (!GET_IDENTIFIER(__class__) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1421 !symtable_add_def(st, __class__, USE))
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1422 VISIT_QUIT(st, 0);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1423 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1424 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1425 /* child nodes of List and Tuple will have expr_context set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1426 case List_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1427 VISIT_SEQ(st, expr, e->v.List.elts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1428 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1429 case Tuple_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1430 VISIT_SEQ(st, expr, e->v.Tuple.elts);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1431 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1432 }
80239 ab02cd145f56 Issue #5765: Apply a hard recursion limit in the compiler Nick Coghlan <ncoghlan@gmail.com> parents: 80141 diff changeset	1433 VISIT_QUIT(st, 1);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1434 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1435
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1436 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1437 symtable_implicit_arg(struct symtable *st, int pos)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1438 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1439 PyObject *id = PyUnicode_FromFormat(".%d", pos);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1440 if (id == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1441 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1442 if (!symtable_add_def(st, id, DEF_PARAM)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1443 Py_DECREF(id);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1444 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1445 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1446 Py_DECREF(id);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1447 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1448 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1449
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1450 static int
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1451 symtable_visit_params(struct symtable st, asdl_seq args)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1452 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1453 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1454
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1455 if (!args)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1456 return -1;
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1457
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1458 for (i = 0; i < asdl_seq_LEN(args); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1459 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1460 if (!symtable_add_def(st, arg->arg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1461 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1462 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1463
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1464 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1465 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1466
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1467 static int
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1468 symtable_visit_argannotations(struct symtable st, asdl_seq args)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1469 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1470 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1471
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1472 if (!args)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1473 return -1;
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1474
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1475 for (i = 0; i < asdl_seq_LEN(args); i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1476 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1477 if (arg->annotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1478 VISIT(st, expr, arg->annotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1479 }
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1480
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1481 return 1;
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1482 }
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1483
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1484 static int
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1485 symtable_visit_annotations(struct symtable *st, stmt_ty s)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1486 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1487 arguments_ty a = s->v.FunctionDef.args;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1488
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1489 if (a->args && !symtable_visit_argannotations(st, a->args))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1490 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1491 if (a->varargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1492 VISIT(st, expr, a->varargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1493 if (a->kwargannotation)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1494 VISIT(st, expr, a->kwargannotation);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1495 if (a->kwonlyargs && !symtable_visit_argannotations(st, a->kwonlyargs))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1496 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1497 if (s->v.FunctionDef.returns)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1498 VISIT(st, expr, s->v.FunctionDef.returns);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1499 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1500 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1501
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1502 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1503 symtable_visit_arguments(struct symtable *st, arguments_ty a)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1504 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1505 /* skip default arguments inside function block
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1506 XXX should ast be different?
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1507 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1508 if (a->args && !symtable_visit_params(st, a->args))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1509 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1510 if (a->kwonlyargs && !symtable_visit_params(st, a->kwonlyargs))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1511 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1512 if (a->vararg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1513 if (!symtable_add_def(st, a->vararg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1514 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1515 st->st_cur->ste_varargs = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1516 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1517 if (a->kwarg) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1518 if (!symtable_add_def(st, a->kwarg, DEF_PARAM))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1519 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1520 st->st_cur->ste_varkeywords = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1521 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1522 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1523 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1524
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1525
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1526 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1527 symtable_visit_excepthandler(struct symtable *st, excepthandler_ty eh)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1528 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1529 if (eh->v.ExceptHandler.type)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1530 VISIT(st, expr, eh->v.ExceptHandler.type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1531 if (eh->v.ExceptHandler.name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1532 if (!symtable_add_def(st, eh->v.ExceptHandler.name, DEF_LOCAL))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1533 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1534 VISIT_SEQ(st, stmt, eh->v.ExceptHandler.body);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1535 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1536 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1537
70438 9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1538 static int
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1539 symtable_visit_withitem(struct symtable *st, withitem_ty item)
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1540 {
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1541 VISIT(st, expr, item->context_expr);
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1542 if (item->optional_vars) {
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1543 VISIT(st, expr, item->optional_vars);
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1544 }
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1545 return 1;
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1546 }
9b11cc4e2918 reflect with statements with multiple items in the AST (closes #12106) Benjamin Peterson <benjamin@python.org> parents: 69231 diff changeset	1547
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1548
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1549 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1550 symtable_visit_alias(struct symtable *st, alias_ty a)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1551 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1552 /* Compute store_name, the name actually bound by the import
62260 44dc98502ac3 Merged revisions 81906 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 61466 diff changeset	1553 operation. It is different than a->name when a->name is a
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1554 dotted package name (e.g. spam.eggs)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1555 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1556 PyObject *store_name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1557 PyObject *name = (a->asname == NULL) ? a->name : a->asname;
72475 8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 71129 diff changeset	1558 Py_ssize_t dot = PyUnicode_FindChar(name, '.', 0,
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 71129 diff changeset	1559 PyUnicode_GET_LENGTH(name), 1);
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 71129 diff changeset	1560 if (dot != -1) {
8beaa9a37387 Implement PEP 393. Martin v. Löwis <martin@v.loewis.de> parents: 71129 diff changeset	1561 store_name = PyUnicode_Substring(name, 0, dot);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1562 if (!store_name)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1563 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1564 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1565 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1566 store_name = name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1567 Py_INCREF(store_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1568 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1569 if (PyUnicode_CompareWithASCIIString(name, "*")) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1570 int r = symtable_add_def(st, store_name, DEF_IMPORT);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1571 Py_DECREF(store_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1572 return r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1573 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1574 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1575 if (st->st_cur->ste_type != ModuleBlock) {
70919 275862274567 fix indentation Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	1576 int lineno = st->st_cur->ste_lineno;
275862274567 fix indentation Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	1577 int col_offset = st->st_cur->ste_col_offset;
275862274567 fix indentation Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	1578 PyErr_SetString(PyExc_SyntaxError, IMPORT_STAR_WARNING);
275862274567 fix indentation Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	1579 PyErr_SyntaxLocationEx(st->st_filename, lineno, col_offset);
275862274567 fix indentation Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	1580 Py_DECREF(store_name);
275862274567 fix indentation Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	1581 return 0;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1582 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1583 st->st_cur->ste_unoptimized \|= OPT_IMPORT_STAR;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1584 Py_DECREF(store_name);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1585 return 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1586 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1587 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1588
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1589
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1590 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1591 symtable_visit_comprehension(struct symtable *st, comprehension_ty lc)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1592 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1593 VISIT(st, expr, lc->target);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1594 VISIT(st, expr, lc->iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1595 VISIT_SEQ(st, expr, lc->ifs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1596 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1597 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1598
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1599
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1600 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1601 symtable_visit_keyword(struct symtable *st, keyword_ty k)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1602 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1603 VISIT(st, expr, k->value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1604 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1605 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1606
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1607
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1608 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1609 symtable_visit_slice(struct symtable *st, slice_ty s)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1610 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1611 switch (s->kind) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1612 case Slice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1613 if (s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1614 VISIT(st, expr, s->v.Slice.lower)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1615 if (s->v.Slice.upper)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1616 VISIT(st, expr, s->v.Slice.upper)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1617 if (s->v.Slice.step)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1618 VISIT(st, expr, s->v.Slice.step)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1619 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1620 case ExtSlice_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1621 VISIT_SEQ(st, slice, s->v.ExtSlice.dims)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1622 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1623 case Index_kind:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1624 VISIT(st, expr, s->v.Index.value)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1625 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1626 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1627 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1628 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1629
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1630 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1631 symtable_handle_comprehension(struct symtable *st, expr_ty e,
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1632 identifier scope_name, asdl_seq *generators,
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1633 expr_ty elt, expr_ty value)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1634 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1635 int is_generator = (e->kind == GeneratorExp_kind);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1636 int needs_tmp = !is_generator;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1637 comprehension_ty outermost = ((comprehension_ty)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1638 asdl_seq_GET(generators, 0));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1639 /* Outermost iterator is evaluated in current scope */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1640 VISIT(st, expr, outermost->iter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1641 /* Create comprehension scope for the rest */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1642 if (!scope_name \|\|
64861 861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1643 !symtable_enter_block(st, scope_name, FunctionBlock, (void *)e,
861c35cef7aa add column offset to all syntax errors Benjamin Peterson <benjamin@python.org> parents: 63114 diff changeset	1644 e->lineno, e->col_offset)) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1645 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1646 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1647 st->st_cur->ste_generator = is_generator;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1648 /* Outermost iter is received as an argument */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1649 if (!symtable_implicit_arg(st, 0)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1650 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1651 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1652 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1653 /* Allocate temporary name if needed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1654 if (needs_tmp && !symtable_new_tmpname(st)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1655 symtable_exit_block(st, (void *)e);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1656 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1657 }
71082 099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1658 VISIT(st, expr, outermost->target);
099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1659 VISIT_SEQ(st, expr, outermost->ifs);
099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1660 VISIT_SEQ_TAIL(st, comprehension, generators, 1);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1661 if (value)
71082 099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1662 VISIT(st, expr, value);
099c7b0f24a6 remove VISIT__IN_BLOCK macros Benjamin Peterson <benjamin@python.org>* parents: 70920 diff changeset	1663 VISIT(st, expr, elt);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1664 return symtable_exit_block(st, (void *)e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1665 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1666
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1667 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1668 symtable_visit_genexp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1669 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1670 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(genexpr),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1671 e->v.GeneratorExp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1672 e->v.GeneratorExp.elt, NULL);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1673 }
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1674
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1675 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1676 symtable_visit_listcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1677 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1678 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(listcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1679 e->v.ListComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1680 e->v.ListComp.elt, NULL);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1681 }
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1682
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1683 static int
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1684 symtable_visit_setcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1685 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1686 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(setcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1687 e->v.SetComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1688 e->v.SetComp.elt, NULL);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1689 }
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1690
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1691 static int
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1692 symtable_visit_dictcomp(struct symtable *st, expr_ty e)
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1693 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1694 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(dictcomp),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1695 e->v.DictComp.generators,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1696 e->v.DictComp.key,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57378 diff changeset	1697 e->v.DictComp.value);
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1698 }

Mercurial > cpython-lru_cache-weakref

annotate Python/symtable.c @ 80239:ab02cd145f56 3.3