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

annotate Python/symtable.c @ 60129:6df6c19fbae3 legacy-trunk

Issue #8276: PyEval_CallObject() is now only available in macro form. The function declaration, which was kept for backwards compatibility reasons, is now removed (the macro was introduced in 1997!).

author	Antoine Pitrou <solipsis@pitrou.net>
date	Thu, 01 Apr 2010 16:42:11 +0000
parents	edfed0e32ced
children	fd25030223b0

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
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	11 #define GLOBAL_AFTER_USE \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	12 "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	13
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	14 #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	15
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	16 #define RETURN_VAL_IN_GENERATOR \
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	17 "'return' with argument inside generator"
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	18
48253 9de68ad86078 PySTEntry's constructor is static; there's no point in a fancy API name Benjamin Peterson <benjamin@python.org> parents: 48251 diff changeset	19
36739 796d150e45a9 No need to export PySTEntry_New, it is only used in symtable.c Neal Norwitz <nnorwitz@gmail.com> parents: 36695 diff changeset	20 static PySTEntryObject *
48253 9de68ad86078 PySTEntry's constructor is static; there's no point in a fancy API name Benjamin Peterson <benjamin@python.org> parents: 48251 diff changeset	21 ste_new(struct symtable *st, identifier name, _Py_block_ty block,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	22 void *key, int lineno)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	23 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	24 PySTEntryObject *ste = NULL;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	25 PyObject *k;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	26
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	27 k = PyLong_FromVoidPtr(key);
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	28 if (k == NULL)
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	29 goto fail;
45772 fea7ba8910a9 Handle memory allocation failure. Found by Adam Olsen Neal Norwitz <nnorwitz@gmail.com> parents: 45447 diff changeset	30 ste = PyObject_New(PySTEntryObject, &PySTEntry_Type);
fea7ba8910a9 Handle memory allocation failure. Found by Adam Olsen Neal Norwitz <nnorwitz@gmail.com> parents: 45447 diff changeset	31 if (ste == NULL)
fea7ba8910a9 Handle memory allocation failure. Found by Adam Olsen Neal Norwitz <nnorwitz@gmail.com> parents: 45447 diff changeset	32 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	33 ste->ste_table = st;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	34 ste->ste_id = k;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	35
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	36 ste->ste_name = name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	37 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	38
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	39 ste->ste_symbols = NULL;
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	40 ste->ste_varnames = NULL;
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	41 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	42
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	43 ste->ste_symbols = PyDict_New();
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	44 if (ste->ste_symbols == NULL)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	45 goto fail;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	46
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	47 ste->ste_varnames = PyList_New(0);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	48 if (ste->ste_varnames == NULL)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	49 goto fail;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	50
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	51 ste->ste_children = PyList_New(0);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	52 if (ste->ste_children == NULL)
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	53 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	54
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	55 ste->ste_type = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	56 ste->ste_unoptimized = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	57 ste->ste_nested = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	58 ste->ste_free = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	59 ste->ste_varargs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	60 ste->ste_varkeywords = 0;
21179 485422900ef0 SF bug #488687 reported by Neal Norwitz Jeremy Hylton <jeremy@alum.mit.edu> parents: 21090 diff changeset	61 ste->ste_opt_lineno = 0;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	62 ste->ste_lineno = lineno;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	63
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	64 if (st->st_cur != NULL &&
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	65 (st->st_cur->ste_nested \|\|
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	66 st->st_cur->ste_type == FunctionBlock))
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	67 ste->ste_nested = 1;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	68 ste->ste_child_free = 0;
18148 7bc473b2c654 Merging the gen-branch into the main line, at Guido's direction. Yay! Tim Peters <tim.peters@gmail.com> parents: 16799 diff changeset	69 ste->ste_generator = 0;
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	70 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	71
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	72 if (PyDict_SetItem(st->st_symbols, ste->ste_id, (PyObject *)ste) < 0)
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	73 goto fail;
16753 51977af230fa Fix for bug 133489: compiler leaks memory Jeremy Hylton <jeremy@alum.mit.edu> parents: 16539 diff changeset	74
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	75 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	76 fail:
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	77 Py_XDECREF(ste);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	78 return NULL;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	79 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	80
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	81 static PyObject *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	82 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	83 {
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	84 char buf[256];
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	85
21090 5e25c669741c ste_repr(): Conversion of sprintf() to PyOS_snprintf() for buffer Barry Warsaw <barry@python.org> parents: 20012 diff changeset	86 PyOS_snprintf(buf, sizeof(buf),
5e25c669741c ste_repr(): Conversion of sprintf() to PyOS_snprintf() for buffer Barry Warsaw <barry@python.org> parents: 20012 diff changeset	87 "<symtable entry %.100s(%ld), line %d>",
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	88 PyString_AS_STRING(ste->ste_name),
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	89 PyInt_AS_LONG(ste->ste_id), ste->ste_lineno);
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	90 return PyString_FromString(buf);
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	91 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	92
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	93 static void
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	94 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	95 {
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	96 ste->ste_table = NULL;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	97 Py_XDECREF(ste->ste_id);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	98 Py_XDECREF(ste->ste_name);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	99 Py_XDECREF(ste->ste_symbols);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	100 Py_XDECREF(ste->ste_varnames);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	101 Py_XDECREF(ste->ste_children);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	102 PyObject_Del(ste);
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	103 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	104
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	105 #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	106
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	107 static PyMemberDef ste_memberlist[] = {
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	108 {"id", T_OBJECT, OFF(ste_id), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	109 {"name", T_OBJECT, OFF(ste_name), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	110 {"symbols", T_OBJECT, OFF(ste_symbols), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	111 {"varnames", T_OBJECT, OFF(ste_varnames), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	112 {"children", T_OBJECT, OFF(ste_children), READONLY},
48258 5a35c963e771 uhh PySTEntry->ste_unoptimized has to be exposed too Benjamin Peterson <benjamin@python.org> parents: 48255 diff changeset	113 {"optimized",T_INT, OFF(ste_unoptimized), READONLY},
48255 153e9e678646 expose PySTEntry.nested so the symtable module will work Benjamin Peterson <benjamin@python.org> parents: 48253 diff changeset	114 {"nested", T_INT, OFF(ste_nested), READONLY},
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	115 {"type", T_INT, OFF(ste_type), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	116 {"lineno", T_INT, OFF(ste_lineno), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	117 {NULL}
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	118 };
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	119
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	120 PyTypeObject PySTEntry_Type = {
42333 6620a510e9a9 PEP 3123: Provide forward compatibility with Python 3.0, while keeping Martin v. Löwis <martin@v.loewis.de> parents: 39586 diff changeset	121 PyVarObject_HEAD_INIT(&PyType_Type, 0)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	122 "symtable entry",
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	123 sizeof(PySTEntryObject),
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	124 0,
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	125 (destructor)ste_dealloc, /* tp_dealloc */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	126 0, /* tp_print */
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	127 0, /* tp_getattr */
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	128 0, /* tp_setattr */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	129 0, /* tp_compare */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	130 (reprfunc)ste_repr, /* tp_repr */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	131 0, /* tp_as_number */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	132 0, /* tp_as_sequence */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	133 0, /* tp_as_mapping */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	134 0, /* tp_hash */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	135 0, /* tp_call */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	136 0, /* tp_str */
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	137 PyObject_GenericGetAttr, /* tp_getattro */
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	138 0, /* tp_setattro */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	139 0, /* tp_as_buffer */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	140 Py_TPFLAGS_DEFAULT, /* tp_flags */
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	141 0, /* tp_doc */
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	142 0, /* tp_traverse */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	143 0, /* tp_clear */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	144 0, /* tp_richcompare */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	145 0, /* tp_weaklistoffset */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	146 0, /* tp_iter */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	147 0, /* tp_iternext */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	148 0, /* tp_methods */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	149 ste_memberlist, /* tp_members */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	150 0, /* tp_getset */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	151 0, /* tp_base */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	152 0, /* tp_dict */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	153 0, /* tp_descr_get */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	154 0, /* tp_descr_set */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	155 0, /* tp_dictoffset */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	156 0, /* tp_init */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	157 0, /* tp_alloc */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	158 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	159 };
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	160
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	161 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	162 static int 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	163 static int symtable_enter_block(struct symtable *st, identifier name,
35793 914ec0afa51c Do not pollute name block_ty, prefix with _Py_ Neal Norwitz <nnorwitz@gmail.com> parents: 35780 diff changeset	164 _Py_block_ty block, void *ast, int lineno);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	165 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	166 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	167 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	168 static int symtable_visit_genexp(struct symtable *st, expr_ty s);
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	169 static int symtable_visit_setcomp(struct symtable *st, expr_ty e);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	170 static int symtable_visit_dictcomp(struct symtable *st, expr_ty e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	171 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	172 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	173 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	174 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	175 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	176 static int symtable_visit_slice(struct symtable *st, slice_ty);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	177 static int symtable_visit_params(struct symtable st, asdl_seq args, int top);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	178 static int symtable_visit_params_nested(struct symtable st, asdl_seq args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	179 static int symtable_implicit_arg(struct symtable *st, int pos);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	180
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	181
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	182 static identifier top = NULL, lambda = NULL, genexpr = NULL, setcomp = NULL,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	183 dictcomp = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	184
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	185 #define GET_IDENTIFIER(VAR) \
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	186 ((VAR) ? (VAR) : ((VAR) = PyString_InternFromString(# VAR)))
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 #define DUPLICATE_ARGUMENT \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	189 "duplicate argument '%s' in function definition"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	190
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	191 static struct symtable *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	192 symtable_new(void)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	193 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	194 struct symtable *st;
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 st = (struct symtable *)PyMem_Malloc(sizeof(struct symtable));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	197 if (st == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	198 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	199
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	200 st->st_filename = NULL;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	201 st->st_symbols = NULL;
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	202
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	203 if ((st->st_stack = PyList_New(0)) == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	204 goto fail;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	205 if ((st->st_symbols = PyDict_New()) == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	206 goto fail;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	207 st->st_cur = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	208 st->st_private = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	209 return st;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	210 fail:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	211 PySymtable_Free(st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	212 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	213 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	214
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	215 struct symtable *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	216 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	217 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	218 struct symtable *st = symtable_new();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	219 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	220 int i;
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 if (st == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	223 return st;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	224 st->st_filename = filename;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	225 st->st_future = future;
39586 2c4026769945 Handle PyString_FromInternedString() failing (unlikely, but possible). Neal Norwitz <nnorwitz@gmail.com> parents: 39445 diff changeset	226 if (!GET_IDENTIFIER(top) \|\|
2c4026769945 Handle PyString_FromInternedString() failing (unlikely, but possible). Neal Norwitz <nnorwitz@gmail.com> parents: 39445 diff changeset	227 !symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0)) {
39131 7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	228 PySymtable_Free(st);
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	229 return NULL;
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	230 }
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	231
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	232 st->st_top = st->st_cur;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	233 st->st_cur->ste_unoptimized = OPT_TOPLEVEL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	234 /* Any other top-level initialization? */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	235 switch (mod->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	236 case Module_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	237 seq = mod->v.Module.body;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	238 for (i = 0; i < asdl_seq_LEN(seq); i++)
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	239 if (!symtable_visit_stmt(st,
19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	240 (stmt_ty)asdl_seq_GET(seq, i)))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	241 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	242 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	243 case Expression_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	244 if (!symtable_visit_expr(st, mod->v.Expression.body))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	245 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	246 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	247 case Interactive_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	248 seq = mod->v.Interactive.body;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	249 for (i = 0; i < asdl_seq_LEN(seq); i++)
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	250 if (!symtable_visit_stmt(st,
19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	251 (stmt_ty)asdl_seq_GET(seq, i)))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	252 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	253 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	254 case Suite_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	255 PyErr_SetString(PyExc_RuntimeError,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	256 "this compiler does not handle Suites");
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	257 goto error;
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	258 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	259 if (!symtable_exit_block(st, (void *)mod)) {
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	260 PySymtable_Free(st);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	261 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	262 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	263 if (symtable_analyze(st))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	264 return st;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	265 PySymtable_Free(st);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	266 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	267 error:
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	268 (void) symtable_exit_block(st, (void *)mod);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	269 PySymtable_Free(st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	270 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	271 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	272
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	273 void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	274 PySymtable_Free(struct symtable *st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	275 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	276 Py_XDECREF(st->st_symbols);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	277 Py_XDECREF(st->st_stack);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	278 PyMem_Free((void *)st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	279 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	280
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	281 PySTEntryObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	282 PySymtable_Lookup(struct symtable st, void key)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	283 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	284 PyObject k, v;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	285
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	286 k = PyLong_FromVoidPtr(key);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	287 if (k == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	288 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	289 v = PyDict_GetItem(st->st_symbols, k);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	290 if (v) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	291 assert(PySTEntry_Check(v));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	292 Py_INCREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	293 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	294 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	295 PyErr_SetString(PyExc_KeyError,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	296 "unknown symbol table entry");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	297 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	298
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	299 Py_DECREF(k);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	300 return (PySTEntryObject *)v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	301 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	302
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	303 int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	304 PyST_GetScope(PySTEntryObject ste, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	305 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	306 PyObject *v = PyDict_GetItem(ste->ste_symbols, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	307 if (!v)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	308 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	309 assert(PyInt_Check(v));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	310 return (PyInt_AS_LONG(v) >> SCOPE_OFF) & SCOPE_MASK;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	314 /* 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	315
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	316 The next several functions are helpers for PySymtable_Analyze(),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	317 which determines whether a name is local, global, or free. In addition,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	318 it determines which local variables are cell variables; they provide
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	319 bindings that are used for free variables in enclosed blocks.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	320
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	321 There are also two kinds of free variables, implicit and explicit. An
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	322 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	323 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	324 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	325 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	326 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	327 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	328 is treated as a local.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	329
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	330 The symbol table requires two passes to determine the scope of each name.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	331 The first pass collects raw facts from the AST: the name is a parameter
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	332 here, the name is used by not defined here, etc. The second pass analyzes
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	333 these facts during a pass over the PySTEntryObjects created during pass 1.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	334
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	335 When a function is entered during the second pass, the parent passes
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	336 the set of all name bindings visible to its children. These bindings
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	337 are used to determine if the variable is free or an implicit global.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	338 After doing the local analysis, it analyzes each of its child blocks
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	339 using an updated set of name bindings.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	340
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	341 The children update the free variable set. If a local variable is free
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	342 in a child, the variable is marked as a cell. The current function must
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	343 provide runtime storage for the variable that may outlive the function's
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	344 frame. Cell variables are removed from the free set before the analyze
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	345 function returns to its parent.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	346
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	347 The sets of bound and free variables are implemented as dictionaries
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	348 mapping strings to None.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	349 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	350
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	351 #define SET_SCOPE(DICT, NAME, I) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	352 PyObject *o = PyInt_FromLong(I); \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	353 if (!o) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	354 return 0; \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	355 if (PyDict_SetItem((DICT), (NAME), o) < 0) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	356 Py_DECREF(o); \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	357 return 0; \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	358 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	359 Py_DECREF(o); \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	360 }
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 /* Decide on scope of name, given flags.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	363
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	364 The namespace dictionaries may be modified to record information
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	365 about the new name. For example, a new global will add an entry to
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	366 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	367 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	368
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	369 static int
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	370 analyze_name(PySTEntryObject ste, PyObject dict, PyObject *name, long flags,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	371 PyObject bound, PyObject local, PyObject *free,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	372 PyObject *global)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	373 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	374 if (flags & DEF_GLOBAL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	375 if (flags & DEF_PARAM) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	376 PyErr_Format(PyExc_SyntaxError,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	377 "name '%s' is local and global",
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	378 PyString_AS_STRING(name));
48251 2d76af7f7702 include filename and line number in SyntaxError Benjamin Peterson <benjamin@python.org> parents: 47527 diff changeset	379 PyErr_SyntaxLocation(ste->ste_table->st_filename,
2d76af7f7702 include filename and line number in SyntaxError Benjamin Peterson <benjamin@python.org> parents: 47527 diff changeset	380 ste->ste_lineno);
2d76af7f7702 include filename and line number in SyntaxError Benjamin Peterson <benjamin@python.org> parents: 47527 diff changeset	381
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	382 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	383 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	384 SET_SCOPE(dict, name, GLOBAL_EXPLICIT);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	385 if (PyDict_SetItem(global, name, Py_None) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	386 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	387 if (bound && PyDict_GetItem(bound, name)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	388 if (PyDict_DelItem(bound, name) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	389 return 0;
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 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	392 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	393 if (flags & DEF_BOUND) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	394 SET_SCOPE(dict, name, LOCAL);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	395 if (PyDict_SetItem(local, name, Py_None) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	396 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	397 if (PyDict_GetItem(global, name)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	398 if (PyDict_DelItem(global, name) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	399 return 0;
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 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	402 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	403 /* If an enclosing block has a binding for this name, it
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	404 is a free variable rather than a global variable.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	405 Note that having a non-NULL bound implies that the block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	406 is nested.
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 if (bound && PyDict_GetItem(bound, name)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	409 SET_SCOPE(dict, name, FREE);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	410 ste->ste_free = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	411 if (PyDict_SetItem(free, name, Py_None) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	412 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	413 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	414 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	415 /* If a parent has a global statement, then call it global
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	416 explicit? It could also be global implicit.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	417 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	418 else if (global && PyDict_GetItem(global, name)) {
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	419 SET_SCOPE(dict, name, GLOBAL_IMPLICIT);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	420 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	421 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	422 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	423 if (ste->ste_nested)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	424 ste->ste_free = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	425 SET_SCOPE(dict, name, GLOBAL_IMPLICIT);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	426 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	427 }
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	428 /* Should never get here. */
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	429 PyErr_Format(PyExc_SystemError, "failed to set scope for %s",
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	430 PyString_AS_STRING(name));
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	431 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	432 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	433
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	434 #undef SET_SCOPE
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	435
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	436 /* 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	437 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	438 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	439
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	440 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	441 That's safe because no name can be free and local in the same scope.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	442 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	443
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	444 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	445 analyze_cells(PyObject scope, PyObject free)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	446 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	447 PyObject name, v, *w;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	448 int success = 0;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	449 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	450
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	451 w = PyInt_FromLong(CELL);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	452 if (!w)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	453 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	454 while (PyDict_Next(scope, &pos, &name, &v)) {
36240 af7d484208e9 analyze_cells(): This no longer compiled under VC 7.1. Tim Peters <tim.peters@gmail.com> parents: 36231 diff changeset	455 long flags;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	456 assert(PyInt_Check(v));
36240 af7d484208e9 analyze_cells(): This no longer compiled under VC 7.1. Tim Peters <tim.peters@gmail.com> parents: 36231 diff changeset	457 flags = PyInt_AS_LONG(v);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	458 if (flags != LOCAL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	459 continue;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	460 if (!PyDict_GetItem(free, name))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	461 continue;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	462 /* Replace LOCAL with CELL for this name, and remove
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	463 from free. It is safe to replace the value of name
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	464 in the dict, because it will not cause a resize.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	465 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	466 if (PyDict_SetItem(scope, name, w) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	467 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	468 if (!PyDict_DelItem(free, name) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	469 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	470 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	471 success = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	472 error:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	473 Py_DECREF(w);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	474 return success;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	475 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	476
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	477 /* Check for illegal statements in unoptimized namespaces */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	478 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	479 check_unoptimized(const PySTEntryObject* ste) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	480 char buf[300];
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	481 const char* trailer;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	482
35780 72cb041ccde3 Fix check_unoptimized() function. The only optimized namespaces are Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35779 diff changeset	483 if (ste->ste_type != FunctionBlock \|\| !ste->ste_unoptimized
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	484 \|\| !(ste->ste_free \|\| ste->ste_child_free))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	485 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	486
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	487 trailer = (ste->ste_child_free ?
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	488 "contains a nested function with free variables" :
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	489 "is a nested function");
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 switch (ste->ste_unoptimized) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	492 case OPT_TOPLEVEL: /* exec / import * at top-level is fine */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	493 case OPT_EXEC: /* qualified exec is fine */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	494 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	495 case OPT_IMPORT_STAR:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	496 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	497 "import * is not allowed in function '%.100s' "
54818 386922b629c3 fix grammar Benjamin Peterson <benjamin@python.org> parents: 54811 diff changeset	498 "because it %s",
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	499 PyString_AS_STRING(ste->ste_name), trailer);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	500 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	501 case OPT_BARE_EXEC:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	502 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	503 "unqualified exec is not allowed in function "
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	504 "'%.100s' it %s",
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	505 PyString_AS_STRING(ste->ste_name), trailer);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	506 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	507 default:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	508 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	509 "function '%.100s' uses import * and bare exec, "
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	510 "which are illegal because it %s",
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	511 PyString_AS_STRING(ste->ste_name), trailer);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	512 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	513 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	514
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	515 PyErr_SetString(PyExc_SyntaxError, buf);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	516 PyErr_SyntaxLocation(ste->ste_table->st_filename,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	517 ste->ste_opt_lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	518 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	519 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	520
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	521 /* Enter the final scope information into the st_symbols dict.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	522 *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	523 * 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	524 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	525 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	526 update_symbols(PyObject symbols, PyObject scope,
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	527 PyObject bound, PyObject free, int classflag)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	528 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	529 PyObject name, v, u, w, *free_value = NULL;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	530 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	531
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	532 while (PyDict_Next(symbols, &pos, &name, &v)) {
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	533 long i, flags;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	534 assert(PyInt_Check(v));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	535 flags = PyInt_AS_LONG(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	536 w = PyDict_GetItem(scope, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	537 assert(w && PyInt_Check(w));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	538 i = PyInt_AS_LONG(w);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	539 flags \|= (i << SCOPE_OFF);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	540 u = PyInt_FromLong(flags);
39139 75a7106662a3 Handle more mem alloc issues found with failmalloc Neal Norwitz <nnorwitz@gmail.com> parents: 39135 diff changeset	541 if (!u)
75a7106662a3 Handle more mem alloc issues found with failmalloc Neal Norwitz <nnorwitz@gmail.com> parents: 39135 diff changeset	542 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	543 if (PyDict_SetItem(symbols, name, u) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	544 Py_DECREF(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	545 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	546 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	547 Py_DECREF(u);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	548 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	549
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	550 free_value = PyInt_FromLong(FREE << SCOPE_OFF);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	551 if (!free_value)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	552 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	553
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	554 /* add a free variable when it's only use is for creating a closure */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	555 pos = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	556 while (PyDict_Next(free, &pos, &name, &v)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	557 PyObject *o = PyDict_GetItem(symbols, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	558
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	559 if (o) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	560 /* It could be a free variable in a method of
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	561 the class that has the same name as a local
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	562 or global in the class scope.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	563 */
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	564 if (classflag &&
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	565 PyInt_AS_LONG(o) & (DEF_BOUND \| DEF_GLOBAL)) {
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	566 long i = PyInt_AS_LONG(o) \| DEF_FREE_CLASS;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	567 o = PyInt_FromLong(i);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	568 if (!o) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	569 Py_DECREF(free_value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	570 return 0;
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 if (PyDict_SetItem(symbols, name, o) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	573 Py_DECREF(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	574 Py_DECREF(free_value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	575 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	576 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	577 Py_DECREF(o);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	578 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	579 /* else it's not free, probably a cell */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	580 continue;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	581 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	582 if (!PyDict_GetItem(bound, name))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	583 continue; /* it's a global */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	584
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	585 if (PyDict_SetItem(symbols, name, free_value) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	586 Py_DECREF(free_value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	587 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	588 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	589 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	590 Py_DECREF(free_value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	591 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	592 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	593
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	594 /* Make final symbol table decisions for block of ste.
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	595
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	596 Arguments:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	597 ste -- current symtable entry (input/output)
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	598 bound -- set of variables bound in enclosing scopes (input). bound
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	599 is NULL for module blocks.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	600 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	601 globals -- set of declared global variables in enclosing scopes (input)
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	602
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	603 The implementation uses two mutually recursive functions,
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	604 analyze_block() and analyze_child_block(). analyze_block() is
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	605 responsible for analyzing the individual names defined in a block.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	606 analyze_child_block() prepares temporary namespace dictionaries
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	607 used to evaluated nested blocks.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	608
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	609 The two functions exist because a child block should see the name
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	610 bindings of its enclosing blocks, but those bindings should not
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	611 propagate back to a parent block.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	612 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	613
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	614 static int
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	615 analyze_child_block(PySTEntryObject entry, PyObject bound, PyObject *free,
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	616 PyObject global, PyObject child_free);
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	617
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	618 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	619 analyze_block(PySTEntryObject ste, PyObject bound, PyObject *free,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	620 PyObject *global)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	621 {
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	622 PyObject name, v, local = NULL, scope = NULL;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	623 PyObject newbound = NULL, newglobal = NULL;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	624 PyObject newfree = NULL, allfree = NULL;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	625 int i, success = 0;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	626 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	627
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	628 local = PyDict_New(); /* collect new names bound in block */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	629 if (!local)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	630 goto error;
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	631 scope = PyDict_New(); /* collect scopes defined for each name */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	632 if (!scope)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	633 goto error;
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	634
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	635 /* Allocate new global and bound variable dictionaries. These
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	636 dictionaries hold the names visible in nested blocks. For
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	637 ClassBlocks, the bound and global names are initialized
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	638 before analyzing names, because class bindings aren't
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	639 visible in methods. For other blocks, they are initialized
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	640 after names are analyzed.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	641 */
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	642
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	643 /* TODO(jhylton): Package these dicts in a struct so that we
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	644 can write reasonable helper functions?
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	645 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	646 newglobal = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	647 if (!newglobal)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	648 goto error;
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	649 newbound = PyDict_New();
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	650 if (!newbound)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	651 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	652 newfree = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	653 if (!newfree)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	654 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	655
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	656 if (ste->ste_type == ClassBlock) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	657 if (PyDict_Update(newglobal, global) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	658 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	659 if (bound)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	660 if (PyDict_Update(newbound, bound) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	661 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	662 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	663
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	664 while (PyDict_Next(ste->ste_symbols, &pos, &name, &v)) {
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	665 long flags = PyInt_AS_LONG(v);
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	666 if (!analyze_name(ste, scope, name, flags,
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	667 bound, local, free, global))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	668 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	669 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	670
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	671 if (ste->ste_type != ClassBlock) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	672 if (ste->ste_type == FunctionBlock) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	673 if (PyDict_Update(newbound, local) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	674 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	675 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	676 if (bound) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	677 if (PyDict_Update(newbound, bound) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	678 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	679 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	680 if (PyDict_Update(newglobal, global) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	681 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	682 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	683
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	684 /* Recursively call analyze_block() on each child block.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	685
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	686 newbound, newglobal now contain the names visible in
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	687 nested blocks. The free variables in the children will
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	688 be collected in allfree.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	689 */
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	690 allfree = PyDict_New();
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	691 if (!allfree)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	692 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	693 for (i = 0; i < PyList_GET_SIZE(ste->ste_children); ++i) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	694 PyObject *c = PyList_GET_ITEM(ste->ste_children, i);
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	695 PySTEntryObject* entry;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	696 assert(c && PySTEntry_Check(c));
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	697 entry = (PySTEntryObject*)c;
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	698 if (!analyze_child_block(entry, newbound, newfree, newglobal,
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	699 allfree))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	700 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	701 if (entry->ste_free \|\| entry->ste_child_free)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	702 ste->ste_child_free = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	703 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	704
52527 6694f3a1b6e7 Add check for PyDict_Update() error. Jeremy Hylton <jeremy@alum.mit.edu> parents: 52520 diff changeset	705 if (PyDict_Update(newfree, allfree) < 0)
6694f3a1b6e7 Add check for PyDict_Update() error. Jeremy Hylton <jeremy@alum.mit.edu> parents: 52520 diff changeset	706 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	707 if (ste->ste_type == FunctionBlock && !analyze_cells(scope, newfree))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	708 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	709 if (!update_symbols(ste->ste_symbols, scope, bound, newfree,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	710 ste->ste_type == ClassBlock))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	711 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	712 if (!check_unoptimized(ste))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	713 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	714
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	715 if (PyDict_Update(free, newfree) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	716 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	717 success = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	718 error:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	719 Py_XDECREF(local);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	720 Py_XDECREF(scope);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	721 Py_XDECREF(newbound);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	722 Py_XDECREF(newglobal);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	723 Py_XDECREF(newfree);
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	724 Py_XDECREF(allfree);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	725 if (!success)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	726 assert(PyErr_Occurred());
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	727 return success;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	728 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	729
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	730 static int
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	731 analyze_child_block(PySTEntryObject entry, PyObject bound, PyObject *free,
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	732 PyObject global, PyObject child_free)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	733 {
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	734 PyObject temp_bound = NULL, temp_global = NULL, *temp_free = NULL;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	735
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	736 /* Copy the bound and global dictionaries.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	737
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	738 These dictionary are used by all blocks enclosed by the
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	739 current block. The analyze_block() call modifies these
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	740 dictionaries.
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	741
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	742 */
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	743 temp_bound = PyDict_New();
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	744 if (!temp_bound)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	745 goto error;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	746 if (PyDict_Update(temp_bound, bound) < 0)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	747 goto error;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	748 temp_free = PyDict_New();
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	749 if (!temp_free)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	750 goto error;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	751 if (PyDict_Update(temp_free, free) < 0)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	752 goto error;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	753 temp_global = PyDict_New();
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	754 if (!temp_global)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	755 goto error;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	756 if (PyDict_Update(temp_global, global) < 0)
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	757 goto error;
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	758
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	759 if (!analyze_block(entry, temp_bound, temp_free, temp_global))
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	760 goto error;
52713 f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	761 if (PyDict_Update(child_free, temp_free) < 0)
f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	762 goto error;
f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	763 Py_DECREF(temp_bound);
f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	764 Py_DECREF(temp_free);
f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	765 Py_DECREF(temp_global);
f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	766 return 1;
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	767 error:
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	768 Py_XDECREF(temp_bound);
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	769 Py_XDECREF(temp_free);
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	770 Py_XDECREF(temp_global);
52713 f634c5455b4f fix error handling Benjamin Peterson <benjamin@python.org> parents: 52527 diff changeset	771 return 0;
52520 6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	772 }
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	773
6910792fcd4b Merged revisions 70801,70809 via svnmerge from Jeremy Hylton <jeremy@alum.mit.edu> parents: 48258 diff changeset	774 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	775 symtable_analyze(struct symtable *st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	776 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	777 PyObject free, global;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	778 int r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	779
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	780 free = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	781 if (!free)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	782 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	783 global = PyDict_New();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	784 if (!global) {
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	785 Py_DECREF(free);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	786 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	787 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	788 r = analyze_block(st->st_top, NULL, free, global);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	789 Py_DECREF(free);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	790 Py_DECREF(global);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	791 return r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	792 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	793
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	794
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	795 static int
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	796 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	797 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	798 if (PyErr_WarnExplicit(PyExc_SyntaxWarning, msg, st->st_filename,
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	799 lineno, NULL, NULL) < 0) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	800 if (PyErr_ExceptionMatches(PyExc_SyntaxWarning)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	801 PyErr_SetString(PyExc_SyntaxError, msg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	802 PyErr_SyntaxLocation(st->st_filename,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	803 st->st_cur->ste_lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	804 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	805 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	806 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	807 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	808 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	809
48253 9de68ad86078 PySTEntry's constructor is static; there's no point in a fancy API name Benjamin Peterson <benjamin@python.org> parents: 48251 diff changeset	810 /* 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	811 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	812 in symtable_exit_block().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	813 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	814
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	815 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	816 symtable_exit_block(struct symtable st, void ast)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	817 {
36521 30aef3ce2b26 Use Py_ssize_t to count the Martin v. Löwis <martin@v.loewis.de> parents: 36501 diff changeset	818 Py_ssize_t end;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	819
39135 12e973bdfeee Fix more memory allocation issues found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39131 diff changeset	820 Py_CLEAR(st->st_cur);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	821 end = PyList_GET_SIZE(st->st_stack) - 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	822 if (end >= 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	823 st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	824 end);
39131 7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	825 if (st->st_cur == NULL)
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	826 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	827 Py_INCREF(st->st_cur);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	828 if (PySequence_DelItem(st->st_stack, end) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	829 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	830 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	831 return 1;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	834 static int
35793 914ec0afa51c Do not pollute name block_ty, prefix with _Py_ Neal Norwitz <nnorwitz@gmail.com> parents: 35780 diff changeset	835 symtable_enter_block(struct symtable *st, identifier name, _Py_block_ty block,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	836 void *ast, int lineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	837 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	838 PySTEntryObject *prev = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	839
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	840 if (st->st_cur) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	841 prev = st->st_cur;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	842 if (PyList_Append(st->st_stack, (PyObject *)st->st_cur) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	843 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	844 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	845 Py_DECREF(st->st_cur);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	846 }
48253 9de68ad86078 PySTEntry's constructor is static; there's no point in a fancy API name Benjamin Peterson <benjamin@python.org> parents: 48251 diff changeset	847 st->st_cur = ste_new(st, name, block, ast, lineno);
39131 7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	848 if (st->st_cur == NULL)
7c09b66f04bd Handle more memory allocation failures without crashing. Neal Norwitz <nnorwitz@gmail.com> parents: 38588 diff changeset	849 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	850 if (name == GET_IDENTIFIER(top))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	851 st->st_global = st->st_cur->ste_symbols;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	852 if (prev) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	853 if (PyList_Append(prev->ste_children,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	854 (PyObject *)st->st_cur) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	855 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	856 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	857 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	858 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	859 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	860
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	861 static long
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	862 symtable_lookup(struct symtable st, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	863 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	864 PyObject *o;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	865 PyObject *mangled = _Py_Mangle(st->st_private, name);
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	866 if (!mangled)
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	867 return 0;
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	868 o = PyDict_GetItem(st->st_cur->ste_symbols, mangled);
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	869 Py_DECREF(mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	870 if (!o)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	871 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	872 return PyInt_AsLong(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	873 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	874
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	875 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	876 symtable_add_def(struct symtable st, PyObject name, int flag)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	877 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	878 PyObject *o;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	879 PyObject *dict;
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	880 long val;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	881 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	882
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	883 if (!mangled)
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	884 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	885 dict = st->st_cur->ste_symbols;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	886 if ((o = PyDict_GetItem(dict, mangled))) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	887 val = PyInt_AS_LONG(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	888 if ((flag & DEF_PARAM) && (val & DEF_PARAM)) {
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	889 /* Is it better to use 'mangled' or 'name' here? */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	890 PyErr_Format(PyExc_SyntaxError, DUPLICATE_ARGUMENT,
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	891 PyString_AsString(name));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	892 PyErr_SyntaxLocation(st->st_filename,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	893 st->st_cur->ste_lineno);
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	894 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	895 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	896 val \|= flag;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	897 } else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	898 val = flag;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	899 o = PyInt_FromLong(val);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	900 if (o == NULL)
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	901 goto error;
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	902 if (PyDict_SetItem(dict, mangled, o) < 0) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	903 Py_DECREF(o);
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	904 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	905 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	906 Py_DECREF(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	907
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	908 if (flag & DEF_PARAM) {
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	909 if (PyList_Append(st->st_cur->ste_varnames, mangled) < 0)
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	910 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	911 } else if (flag & DEF_GLOBAL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	912 /* XXX need to update DEF_GLOBAL for other flags too;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	913 perhaps only DEF_FREE_GLOBAL */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	914 val = flag;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	915 if ((o = PyDict_GetItem(st->st_global, mangled))) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	916 val \|= PyInt_AS_LONG(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	917 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	918 o = PyInt_FromLong(val);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	919 if (o == NULL)
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	920 goto error;
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	921 if (PyDict_SetItem(st->st_global, mangled, o) < 0) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	922 Py_DECREF(o);
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	923 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	924 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	925 Py_DECREF(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	926 }
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	927 Py_DECREF(mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	928 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	929
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	930 error:
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	931 Py_DECREF(mangled);
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	932 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	933 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	934
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	935 /* 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	936 They use the ASDL name to synthesize the name of the C type and the visit
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	937 function.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	938
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	939 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	940 useful if the first node in the sequence requires special treatment.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	941 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	942
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	943 #define VISIT(ST, TYPE, V) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	944 if (!symtable_visit_ ## TYPE((ST), (V))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	945 return 0;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	946
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	947 #define VISIT_IN_BLOCK(ST, TYPE, V, S) \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	948 if (!symtable_visit_ ## TYPE((ST), (V))) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	949 symtable_exit_block((ST), (S)); \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	950 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	951 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	952
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	953 #define VISIT_SEQ(ST, TYPE, SEQ) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	954 int i; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	955 asdl_seq seq = (SEQ); / avoid variable capture */ \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	956 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	957 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	958 if (!symtable_visit_ ## TYPE((ST), elt)) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	959 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	960 } \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	961 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	962
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	963 #define VISIT_SEQ_IN_BLOCK(ST, TYPE, SEQ, S) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	964 int i; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	965 asdl_seq seq = (SEQ); / avoid variable capture */ \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	966 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	967 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	968 if (!symtable_visit_ ## TYPE((ST), elt)) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	969 symtable_exit_block((ST), (S)); \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	970 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	971 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	972 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	973 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	974
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	975 #define VISIT_SEQ_TAIL(ST, TYPE, SEQ, START) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	976 int i; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	977 asdl_seq seq = (SEQ); / avoid variable capture */ \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	978 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	979 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	980 if (!symtable_visit_ ## TYPE((ST), elt)) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	981 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	982 } \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	983 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	984
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	985 #define VISIT_SEQ_TAIL_IN_BLOCK(ST, TYPE, SEQ, START, S) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	986 int i; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	987 asdl_seq seq = (SEQ); / avoid variable capture */ \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	988 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	989 TYPE ## _ty elt = (TYPE ## _ty)asdl_seq_GET(seq, i); \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	990 if (!symtable_visit_ ## TYPE((ST), elt)) { \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	991 symtable_exit_block((ST), (S)); \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	992 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	993 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	994 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	995 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	996
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	997 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	998 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	999 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1000 switch (s->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1001 case FunctionDef_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1002 if (!symtable_add_def(st, s->v.FunctionDef.name, DEF_LOCAL))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1003 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1004 if (s->v.FunctionDef.args->defaults)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1005 VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	1006 if (s->v.FunctionDef.decorator_list)
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	1007 VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1008 if (!symtable_enter_block(st, s->v.FunctionDef.name,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1009 FunctionBlock, (void *)s, s->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1010 return 0;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1011 VISIT_IN_BLOCK(st, arguments, s->v.FunctionDef.args, s);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1012 VISIT_SEQ_IN_BLOCK(st, stmt, s->v.FunctionDef.body, s);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1013 if (!symtable_exit_block(st, s))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1014 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1015 break;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1016 case ClassDef_kind: {
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1017 PyObject *tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1018 if (!symtable_add_def(st, s->v.ClassDef.name, DEF_LOCAL))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1019 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1020 VISIT_SEQ(st, expr, s->v.ClassDef.bases);
45447 393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	1021 if (s->v.ClassDef.decorator_list)
393822f2ef90 Patch #1759: Backport of PEP 3129 class decorators Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	1022 VISIT_SEQ(st, expr, s->v.ClassDef.decorator_list);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1023 if (!symtable_enter_block(st, s->v.ClassDef.name, ClassBlock,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1024 (void *)s, s->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1025 return 0;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1026 tmp = st->st_private;
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1027 st->st_private = s->v.ClassDef.name;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1028 VISIT_SEQ_IN_BLOCK(st, stmt, s->v.ClassDef.body, s);
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1029 st->st_private = tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1030 if (!symtable_exit_block(st, s))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1031 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1032 break;
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1033 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1034 case Return_kind:
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1035 if (s->v.Return.value) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1036 VISIT(st, expr, s->v.Return.value);
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1037 st->st_cur->ste_returns_value = 1;
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1038 if (st->st_cur->ste_generator) {
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1039 PyErr_SetString(PyExc_SyntaxError,
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1040 RETURN_VAL_IN_GENERATOR);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1041 PyErr_SyntaxLocation(st->st_filename,
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1042 s->lineno);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1043 return 0;
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1044 }
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1045 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1046 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1047 case Delete_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1048 VISIT_SEQ(st, expr, s->v.Delete.targets);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1049 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1050 case Assign_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1051 VISIT_SEQ(st, expr, s->v.Assign.targets);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1052 VISIT(st, expr, s->v.Assign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1053 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1054 case AugAssign_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1055 VISIT(st, expr, s->v.AugAssign.target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1056 VISIT(st, expr, s->v.AugAssign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1057 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1058 case Print_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1059 if (s->v.Print.dest)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1060 VISIT(st, expr, s->v.Print.dest);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1061 VISIT_SEQ(st, expr, s->v.Print.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1062 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1063 case For_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1064 VISIT(st, expr, s->v.For.target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1065 VISIT(st, expr, s->v.For.iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1066 VISIT_SEQ(st, stmt, s->v.For.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1067 if (s->v.For.orelse)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1068 VISIT_SEQ(st, stmt, s->v.For.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1069 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1070 case While_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1071 VISIT(st, expr, s->v.While.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1072 VISIT_SEQ(st, stmt, s->v.While.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1073 if (s->v.While.orelse)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1074 VISIT_SEQ(st, stmt, s->v.While.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1075 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1076 case If_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1077 /* XXX if 0: and lookup_yield() hacks */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1078 VISIT(st, expr, s->v.If.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1079 VISIT_SEQ(st, stmt, s->v.If.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1080 if (s->v.If.orelse)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1081 VISIT_SEQ(st, stmt, s->v.If.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1082 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1083 case Raise_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1084 if (s->v.Raise.type) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1085 VISIT(st, expr, s->v.Raise.type);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1086 if (s->v.Raise.inst) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1087 VISIT(st, expr, s->v.Raise.inst);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1088 if (s->v.Raise.tback)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1089 VISIT(st, expr, s->v.Raise.tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1090 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1091 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1092 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1093 case TryExcept_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1094 VISIT_SEQ(st, stmt, s->v.TryExcept.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1095 VISIT_SEQ(st, stmt, s->v.TryExcept.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1096 VISIT_SEQ(st, excepthandler, s->v.TryExcept.handlers);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1097 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1098 case TryFinally_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1099 VISIT_SEQ(st, stmt, s->v.TryFinally.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1100 VISIT_SEQ(st, stmt, s->v.TryFinally.finalbody);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1101 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1102 case Assert_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1103 VISIT(st, expr, s->v.Assert.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1104 if (s->v.Assert.msg)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1105 VISIT(st, expr, s->v.Assert.msg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1106 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1107 case Import_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1108 VISIT_SEQ(st, alias, s->v.Import.names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1109 /* XXX Don't have the lineno available inside
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1110 visit_alias */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1111 if (st->st_cur->ste_unoptimized && !st->st_cur->ste_opt_lineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1112 st->st_cur->ste_opt_lineno = s->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1113 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1114 case ImportFrom_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1115 VISIT_SEQ(st, alias, s->v.ImportFrom.names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1116 /* XXX Don't have the lineno available inside
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1117 visit_alias */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1118 if (st->st_cur->ste_unoptimized && !st->st_cur->ste_opt_lineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1119 st->st_cur->ste_opt_lineno = s->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1120 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1121 case Exec_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1122 VISIT(st, expr, s->v.Exec.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1123 if (!st->st_cur->ste_opt_lineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1124 st->st_cur->ste_opt_lineno = s->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1125 if (s->v.Exec.globals) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1126 st->st_cur->ste_unoptimized \|= OPT_EXEC;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1127 VISIT(st, expr, s->v.Exec.globals);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1128 if (s->v.Exec.locals)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1129 VISIT(st, expr, s->v.Exec.locals);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1130 } else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1131 st->st_cur->ste_unoptimized \|= OPT_BARE_EXEC;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1132 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1133 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1134 case Global_kind: {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1135 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1136 asdl_seq *seq = s->v.Global.names;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1137 for (i = 0; i < asdl_seq_LEN(seq); i++) {
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	1138 identifier name = (identifier)asdl_seq_GET(seq, i);
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1139 char *c_name = PyString_AS_STRING(name);
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	1140 long cur = symtable_lookup(st, name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1141 if (cur < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1142 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1143 if (cur & (DEF_LOCAL \| USE)) {
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1144 char buf[256];
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1145 if (cur & DEF_LOCAL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1146 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1147 GLOBAL_AFTER_ASSIGN,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1148 c_name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1149 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1150 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1151 GLOBAL_AFTER_USE,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1152 c_name);
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	1153 if (!symtable_warn(st, buf, s->lineno))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1154 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1155 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1156 if (!symtable_add_def(st, name, DEF_GLOBAL))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1157 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1158 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1159 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1160 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1161 case Expr_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1162 VISIT(st, expr, s->v.Expr.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1163 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1164 case Pass_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1165 case Break_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1166 case Continue_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1167 /* nothing to do here */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1168 break;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1169 case With_kind:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1170 VISIT(st, expr, s->v.With.context_expr);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1171 if (s->v.With.optional_vars) {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1172 VISIT(st, expr, s->v.With.optional_vars);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1173 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1174 VISIT_SEQ(st, stmt, s->v.With.body);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1175 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1176 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1177 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1178 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1179
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1180 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1181 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	1182 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1183 switch (e->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1184 case BoolOp_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1185 VISIT_SEQ(st, expr, e->v.BoolOp.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1186 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1187 case BinOp_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1188 VISIT(st, expr, e->v.BinOp.left);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1189 VISIT(st, expr, e->v.BinOp.right);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1190 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1191 case UnaryOp_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1192 VISIT(st, expr, e->v.UnaryOp.operand);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1193 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1194 case Lambda_kind: {
54810 8700089eccd4 don't need to add the name 'lambda' as assigned Benjamin Peterson <benjamin@python.org> parents: 52713 diff changeset	1195 if (!GET_IDENTIFIER(lambda))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1196 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1197 if (e->v.Lambda.args->defaults)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1198 VISIT_SEQ(st, expr, e->v.Lambda.args->defaults);
39586 2c4026769945 Handle PyString_FromInternedString() failing (unlikely, but possible). Neal Norwitz <nnorwitz@gmail.com> parents: 39445 diff changeset	1199 if (!symtable_enter_block(st, lambda,
57374 6e370013f3a0 provide line number for lambdas Benjamin Peterson <benjamin@python.org> parents: 54818 diff changeset	1200 FunctionBlock, (void *)e, e->lineno))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1201 return 0;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1202 VISIT_IN_BLOCK(st, arguments, e->v.Lambda.args, (void*)e);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1203 VISIT_IN_BLOCK(st, expr, e->v.Lambda.body, (void*)e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1204 if (!symtable_exit_block(st, (void *)e))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1205 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1206 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1207 }
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1208 case IfExp_kind:
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1209 VISIT(st, expr, e->v.IfExp.test);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1210 VISIT(st, expr, e->v.IfExp.body);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1211 VISIT(st, expr, e->v.IfExp.orelse);
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1212 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1213 case Dict_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1214 VISIT_SEQ(st, expr, e->v.Dict.keys);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1215 VISIT_SEQ(st, expr, e->v.Dict.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1216 break;
58229 c2fdf25329ff Issue #2335: Backport set literals syntax from Python 3.x. Alexandre Vassalotti <alexandre@peadrop.com> parents: 57375 diff changeset	1217 case Set_kind:
c2fdf25329ff Issue #2335: Backport set literals syntax from Python 3.x. Alexandre Vassalotti <alexandre@peadrop.com> parents: 57375 diff changeset	1218 VISIT_SEQ(st, expr, e->v.Set.elts);
c2fdf25329ff Issue #2335: Backport set literals syntax from Python 3.x. Alexandre Vassalotti <alexandre@peadrop.com> parents: 57375 diff changeset	1219 break;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1220 case ListComp_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1221 VISIT(st, expr, e->v.ListComp.elt);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1222 VISIT_SEQ(st, comprehension, e->v.ListComp.generators);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1223 break;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1224 case GeneratorExp_kind:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1225 if (!symtable_visit_genexp(st, e))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1226 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1227 break;
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1228 case SetComp_kind:
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1229 if (!symtable_visit_setcomp(st, e))
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1230 return 0;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1231 break;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1232 case DictComp_kind:
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1233 if (!symtable_visit_dictcomp(st, e))
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1234 return 0;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1235 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1236 case Yield_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1237 if (e->v.Yield.value)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1238 VISIT(st, expr, e->v.Yield.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1239 st->st_cur->ste_generator = 1;
38588 5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1240 if (st->st_cur->ste_returns_value) {
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1241 PyErr_SetString(PyExc_SyntaxError,
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1242 RETURN_VAL_IN_GENERATOR);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1243 PyErr_SyntaxLocation(st->st_filename,
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1244 e->lineno);
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1245 return 0;
5dfb21a37f19 Patch #1346214: correctly optimize away "if 0"-style stmts Georg Brandl <georg@python.org> parents: 37615 diff changeset	1246 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1247 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1248 case Compare_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1249 VISIT(st, expr, e->v.Compare.left);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1250 VISIT_SEQ(st, expr, e->v.Compare.comparators);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1251 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1252 case Call_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1253 VISIT(st, expr, e->v.Call.func);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1254 VISIT_SEQ(st, expr, e->v.Call.args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1255 VISIT_SEQ(st, keyword, e->v.Call.keywords);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1256 if (e->v.Call.starargs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1257 VISIT(st, expr, e->v.Call.starargs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1258 if (e->v.Call.kwargs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1259 VISIT(st, expr, e->v.Call.kwargs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1260 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1261 case Repr_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1262 VISIT(st, expr, e->v.Repr.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1263 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1264 case Num_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1265 case Str_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1266 /* Nothing to do here. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1267 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1268 /* The following exprs can be assignment targets. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1269 case Attribute_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1270 VISIT(st, expr, e->v.Attribute.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1271 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1272 case Subscript_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1273 VISIT(st, expr, e->v.Subscript.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1274 VISIT(st, slice, e->v.Subscript.slice);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1275 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1276 case Name_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1277 if (!symtable_add_def(st, e->v.Name.id,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1278 e->v.Name.ctx == Load ? USE : DEF_LOCAL))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1279 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1280 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1281 /* child nodes of List and Tuple will have expr_context set */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1282 case List_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1283 VISIT_SEQ(st, expr, e->v.List.elts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1284 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1285 case Tuple_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1286 VISIT_SEQ(st, expr, e->v.Tuple.elts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1287 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1288 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1289 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1290 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1291
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1292 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1293 symtable_implicit_arg(struct symtable *st, int pos)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1294 {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1295 PyObject *id = PyString_FromFormat(".%d", pos);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1296 if (id == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1297 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1298 if (!symtable_add_def(st, id, DEF_PARAM)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1299 Py_DECREF(id);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1300 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1301 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1302 Py_DECREF(id);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1303 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1304 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1305
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1306 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1307 symtable_visit_params(struct symtable st, asdl_seq args, int toplevel)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1308 {
36226 bb6fa4a31f15 Fix icc warnings: shadowing local variable (i) and complex is set but not used, so remove Neal Norwitz <nnorwitz@gmail.com> parents: 36089 diff changeset	1309 int i;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1310
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1311 /* go through all the toplevel arguments first */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1312 for (i = 0; i < asdl_seq_LEN(args); i++) {
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	1313 expr_ty arg = (expr_ty)asdl_seq_GET(args, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1314 if (arg->kind == Name_kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1315 assert(arg->v.Name.ctx == Param \|\|
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1316 (arg->v.Name.ctx == Store && !toplevel));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1317 if (!symtable_add_def(st, arg->v.Name.id, DEF_PARAM))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1318 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1319 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1320 else if (arg->kind == Tuple_kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1321 assert(arg->v.Tuple.ctx == Store);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1322 if (toplevel) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1323 if (!symtable_implicit_arg(st, i))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1324 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1325 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1326 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1327 else {
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	1328 PyErr_SetString(PyExc_SyntaxError,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	1329 "invalid expression in parameter list");
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	1330 PyErr_SyntaxLocation(st->st_filename,
825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	1331 st->st_cur->ste_lineno);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1332 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1333 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1334 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1335
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1336 if (!toplevel) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1337 if (!symtable_visit_params_nested(st, args))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1338 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1339 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1340
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1341 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1342 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1343
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1344 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1345 symtable_visit_params_nested(struct symtable st, asdl_seq args)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1346 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1347 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1348 for (i = 0; i < asdl_seq_LEN(args); i++) {
37615 19d99b31555c Make symtable.c safe for C++ compilers. Changed macros in the same way as Anthony Baxter <anthonybaxter@gmail.com> parents: 36739 diff changeset	1349 expr_ty arg = (expr_ty)asdl_seq_GET(args, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1350 if (arg->kind == Tuple_kind &&
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1351 !symtable_visit_params(st, arg->v.Tuple.elts, 0))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1352 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1353 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1354
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1355 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1356 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1357
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1358 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1359 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	1360 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1361 /* skip default arguments inside function block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1362 XXX should ast be different?
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1363 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1364 if (a->args && !symtable_visit_params(st, a->args, 1))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1365 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1366 if (a->vararg) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1367 if (!symtable_add_def(st, a->vararg, DEF_PARAM))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1368 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1369 st->st_cur->ste_varargs = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1370 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1371 if (a->kwarg) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1372 if (!symtable_add_def(st, a->kwarg, DEF_PARAM))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1373 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1374 st->st_cur->ste_varkeywords = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1375 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1376 if (a->args && !symtable_visit_params_nested(st, a->args))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1377 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1378 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1379 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1380
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1381
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1382 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1383 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	1384 {
46200 2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 45772 diff changeset	1385 if (eh->v.ExceptHandler.type)
2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 45772 diff changeset	1386 VISIT(st, expr, eh->v.ExceptHandler.type);
2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 45772 diff changeset	1387 if (eh->v.ExceptHandler.name)
2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 45772 diff changeset	1388 VISIT(st, expr, eh->v.ExceptHandler.name);
2ff88ae9850c Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum. Georg Brandl <georg@python.org> parents: 45772 diff changeset	1389 VISIT_SEQ(st, stmt, eh->v.ExceptHandler.body);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1390 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1391 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1392
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1393
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1394 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1395 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	1396 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1397 /* Compute store_name, the name actually bound by the import
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1398 operation. It is diferent than a->name when a->name is a
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1399 dotted package name (e.g. spam.eggs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1400 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1401 PyObject *store_name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1402 PyObject *name = (a->asname == NULL) ? a->name : a->asname;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1403 const char *base = PyString_AS_STRING(name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1404 char *dot = strchr(base, '.');
39445 e11caad7e029 Klocwork made another run and found a bunch more problems. Neal Norwitz <nnorwitz@gmail.com> parents: 39139 diff changeset	1405 if (dot) {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1406 store_name = PyString_FromStringAndSize(base, dot - base);
39445 e11caad7e029 Klocwork made another run and found a bunch more problems. Neal Norwitz <nnorwitz@gmail.com> parents: 39139 diff changeset	1407 if (!store_name)
e11caad7e029 Klocwork made another run and found a bunch more problems. Neal Norwitz <nnorwitz@gmail.com> parents: 39139 diff changeset	1408 return 0;
e11caad7e029 Klocwork made another run and found a bunch more problems. Neal Norwitz <nnorwitz@gmail.com> parents: 39139 diff changeset	1409 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1410 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1411 store_name = name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1412 Py_INCREF(store_name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1413 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1414 if (strcmp(PyString_AS_STRING(name), "*")) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1415 int r = symtable_add_def(st, store_name, DEF_IMPORT);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1416 Py_DECREF(store_name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1417 return r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1418 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1419 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1420 if (st->st_cur->ste_type != ModuleBlock) {
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	1421 int lineno = st->st_cur->ste_lineno;
4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	1422 if (!symtable_warn(st, IMPORT_STAR_WARNING, lineno)) {
35939 79374eb6db51 Fix a few more ref leaks. Backport candidate Neal Norwitz <nnorwitz@gmail.com> parents: 35893 diff changeset	1423 Py_DECREF(store_name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1424 return 0;
35939 79374eb6db51 Fix a few more ref leaks. Backport candidate Neal Norwitz <nnorwitz@gmail.com> parents: 35893 diff changeset	1425 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1426 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1427 st->st_cur->ste_unoptimized \|= OPT_IMPORT_STAR;
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	1428 Py_DECREF(store_name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1429 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1430 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1431 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1432
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1433
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1434 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1435 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	1436 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1437 VISIT(st, expr, lc->target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1438 VISIT(st, expr, lc->iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1439 VISIT_SEQ(st, expr, lc->ifs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1440 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1441 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1442
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1443
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1444 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1445 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	1446 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1447 VISIT(st, expr, k->value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1448 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1449 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1450
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1451
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1452 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1453 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	1454 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1455 switch (s->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1456 case Slice_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1457 if (s->v.Slice.lower)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1458 VISIT(st, expr, s->v.Slice.lower)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1459 if (s->v.Slice.upper)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1460 VISIT(st, expr, s->v.Slice.upper)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1461 if (s->v.Slice.step)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1462 VISIT(st, expr, s->v.Slice.step)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1463 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1464 case ExtSlice_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1465 VISIT_SEQ(st, slice, s->v.ExtSlice.dims)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1466 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1467 case Index_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1468 VISIT(st, expr, s->v.Index.value)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1469 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1470 case Ellipsis_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1471 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1472 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1473 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1474 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1475
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1476 static int
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1477 symtable_new_tmpname(struct symtable *st)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1478 {
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1479 char tmpname[256];
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1480 identifier tmp;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1481
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1482 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]",
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1483 ++st->st_cur->ste_tmpname);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1484 tmp = PyString_InternFromString(tmpname);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1485 if (!tmp)
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1486 return 0;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1487 if (!symtable_add_def(st, tmp, DEF_LOCAL))
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1488 return 0;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1489 Py_DECREF(tmp);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1490 return 1;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1491 }
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1492
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1493 static int
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1494 symtable_handle_comprehension(struct symtable *st, expr_ty e,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1495 identifier scope_name, asdl_seq *generators,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1496 expr_ty elt, expr_ty value)
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1497 {
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1498 int is_generator = (e->kind == GeneratorExp_kind);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1499 int needs_tmp = !is_generator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1500 comprehension_ty outermost = ((comprehension_ty)
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1501 asdl_seq_GET(generators, 0));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1502 /* Outermost iterator is evaluated in current scope */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1503 VISIT(st, expr, outermost->iter);
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1504 /* Create comprehension scope for the rest */
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1505 if (!scope_name \|\|
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1506 !symtable_enter_block(st, scope_name, FunctionBlock, (void *)e, 0)) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1507 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1508 }
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1509 st->st_cur->ste_generator = is_generator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1510 /* Outermost iter is received as an argument */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1511 if (!symtable_implicit_arg(st, 0)) {
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1512 symtable_exit_block(st, (void *)e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1513 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1514 }
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1515 /* Allocate temporary name if needed */
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1516 if (needs_tmp && !symtable_new_tmpname(st)) {
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1517 symtable_exit_block(st, (void *)e);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1518 return 0;
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1519 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1520 VISIT_IN_BLOCK(st, expr, outermost->target, (void*)e);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1521 VISIT_SEQ_IN_BLOCK(st, expr, outermost->ifs, (void*)e);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1522 VISIT_SEQ_TAIL_IN_BLOCK(st, comprehension,
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1523 generators, 1, (void*)e);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1524 if (value)
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1525 VISIT_IN_BLOCK(st, expr, value, (void*)e);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1526 VISIT_IN_BLOCK(st, expr, elt, (void*)e);
39586 2c4026769945 Handle PyString_FromInternedString() failing (unlikely, but possible). Neal Norwitz <nnorwitz@gmail.com> parents: 39445 diff changeset	1527 return symtable_exit_block(st, (void *)e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1528 }
58250 edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1529
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1530 static int
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1531 symtable_visit_genexp(struct symtable *st, expr_ty e)
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1532 {
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1533 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(genexpr),
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1534 e->v.GeneratorExp.generators,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1535 e->v.GeneratorExp.elt, NULL);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1536 }
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1537
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1538 static int
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1539 symtable_visit_setcomp(struct symtable *st, expr_ty e)
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1540 {
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1541 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(setcomp),
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1542 e->v.SetComp.generators,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1543 e->v.SetComp.elt, NULL);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1544 }
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1545
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1546 static int
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1547 symtable_visit_dictcomp(struct symtable *st, expr_ty e)
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1548 {
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1549 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(dictcomp),
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1550 e->v.DictComp.generators,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1551 e->v.DictComp.key,
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1552 e->v.DictComp.value);
edfed0e32ced Issue #2333: Backport set and dict comprehensions syntax. Alexandre Vassalotti <alexandre@peadrop.com> parents: 58229 diff changeset	1553 }

Mercurial > cpython-lru_cache-weakref

annotate Python/symtable.c @ 60129:6df6c19fbae3 legacy-trunk