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

annotate Python/symtable.c @ 42291:3772103200ec

Three patches by Amaury Forgeot d'Arc; SF patch# 1754484.

author	Guido van Rossum <guido@python.org>
date	Mon, 16 Jul 2007 20:46:27 +0000
parents	090588a17490
children	e70cdce0e8b2

rev	line source
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	1 #include "Python.h"
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	2 #include "Python-ast.h"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	3 #include "code.h"
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	4 #include "symtable.h"
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	5 #include "structmember.h"
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	6
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	7 /* error strings used for warnings */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	8 #define GLOBAL_AFTER_ASSIGN \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	9 "name '%.400s' is assigned to before global declaration"
21325 8a26bb369f53 Add a comment explaining the st_symbols cache. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21314 diff changeset	10
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	11 #define NONLOCAL_AFTER_ASSIGN \
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	12 "name '%.400s' is assigned to before nonlocal declaration"
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	13
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	14 #define GLOBAL_AFTER_USE \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	15 "name '%.400s' is used prior to global declaration"
21325 8a26bb369f53 Add a comment explaining the st_symbols cache. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21314 diff changeset	16
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	17 #define NONLOCAL_AFTER_USE \
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	18 "name '%.400s' is used prior to nonlocal declaration"
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	19
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	20 #define IMPORT_STAR_WARNING "import * only allowed at module level"
4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	21
38673 a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	22 #define RETURN_VAL_IN_GENERATOR \
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	23 "'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	24
36739 796d150e45a9 No need to export PySTEntry_New, it is only used in symtable.c Neal Norwitz <nnorwitz@gmail.com> parents: 36695 diff changeset	25 /* XXX(nnorwitz): change name since static? */
796d150e45a9 No need to export PySTEntry_New, it is only used in symtable.c Neal Norwitz <nnorwitz@gmail.com> parents: 36695 diff changeset	26 static PySTEntryObject *
35793 914ec0afa51c Do not pollute name block_ty, prefix with _Py_ Neal Norwitz <nnorwitz@gmail.com> parents: 35780 diff changeset	27 PySTEntry_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	28 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	29 {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	30 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	31 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	32
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	33 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	34 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	35 goto fail;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	36 ste = (PySTEntryObject *)PyObject_New(PySTEntryObject,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	37 &PySTEntry_Type);
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	38 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	39 ste->ste_id = k;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	40 ste->ste_tmpname = 0;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	41
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	42 ste->ste_name = name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	43 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	44
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	45 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	46 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	47 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	48
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	49 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	50 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	51 goto fail;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	52
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	53 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	54 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	55 goto fail;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	56
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	57 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	58 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	59 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	60
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	61 ste->ste_type = block;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	62 ste->ste_unoptimized = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	63 ste->ste_nested = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	64 ste->ste_free = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	65 ste->ste_varargs = 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	66 ste->ste_varkeywords = 0;
21179 485422900ef0 SF bug #488687 reported by Neal Norwitz Jeremy Hylton <jeremy@alum.mit.edu> parents: 21090 diff changeset	67 ste->ste_opt_lineno = 0;
29226 3aaf24b949df Backport fix for SF bug 734869 and sundry compiler cleanups. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21325 diff changeset	68 ste->ste_tmpname = 0;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	69 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	70
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	71 if (st->st_cur != NULL &&
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	72 (st->st_cur->ste_nested \|\|
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	73 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	74 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	75 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	76 ste->ste_generator = 0;
38673 a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	77 ste->ste_returns_value = 0;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	78
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	79 if (PyDict_SetItem(st->st_blocks, ste->ste_id, (PyObject *)ste) < 0)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	80 goto fail;
16753 51977af230fa Fix for bug 133489: compiler leaks memory Jeremy Hylton <jeremy@alum.mit.edu> parents: 16539 diff changeset	81
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	82 return ste;
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	83 fail:
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	84 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	85 return NULL;
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	86 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	87
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	88 static PyObject *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	89 ste_repr(PySTEntryObject *ste)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	90 {
42042 e0f927414dfa Simplify ste_repr(). Walter Dörwald <walter@livinglogic.de> parents: 42013 diff changeset	91 return PyUnicode_FromFormat("<symtable entry %U(%ld), line %d>",
e0f927414dfa Simplify ste_repr(). Walter Dörwald <walter@livinglogic.de> parents: 42013 diff changeset	92 ste->ste_name,
e0f927414dfa Simplify ste_repr(). Walter Dörwald <walter@livinglogic.de> parents: 42013 diff changeset	93 PyInt_AS_LONG(ste->ste_id), ste->ste_lineno);
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	94 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	95
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	96 static void
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	97 ste_dealloc(PySTEntryObject *ste)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	98 {
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	99 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	100 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	101 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	102 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	103 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	104 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	105 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	106 }
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	107
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	108 #define OFF(x) offsetof(PySTEntryObject, x)
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	109
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	110 static PyMemberDef ste_memberlist[] = {
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	111 {"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	112 {"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	113 {"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	114 {"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	115 {"children", T_OBJECT, OFF(ste_children), READONLY},
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	116 {"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	117 {"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	118 {NULL}
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	119 };
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	120
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	121 PyTypeObject PySTEntry_Type = {
16539 a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	122 PyObject_HEAD_INIT(&PyType_Type)
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	123 0,
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	124 "symtable entry",
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	125 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	126 0,
a47d93ef103a Relax the rules for using 'from ... import ' and exec in the presence Jeremy Hylton <jeremy@alum.mit.edu>* parents: diff changeset	127 (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	128 0, /* tp_print */
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	129 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	130 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	131 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	132 (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	133 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	134 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	135 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	136 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	137 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	138 0, /* tp_str */
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	139 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	140 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	141 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	142 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	143 0, /* tp_doc */
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	144 0, /* tp_traverse */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	145 0, /* tp_clear */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	146 0, /* tp_richcompare */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	147 0, /* tp_weaklistoffset */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	148 0, /* tp_iter */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	149 0, /* tp_iternext */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	150 0, /* tp_methods */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	151 ste_memberlist, /* tp_members */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	152 0, /* tp_getset */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	153 0, /* tp_base */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	154 0, /* tp_dict */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	155 0, /* tp_descr_get */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	156 0, /* tp_descr_set */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	157 0, /* tp_dictoffset */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	158 0, /* tp_init */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	159 0, /* tp_alloc */
3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 18148 diff changeset	160 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	161 };
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	162
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	163 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	164 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	165 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	166 _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	167 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	168 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	169 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	170 static int symtable_visit_genexp(struct symtable *st, expr_ty s);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	171 static int symtable_visit_listcomp(struct symtable *st, expr_ty s);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	172 static int symtable_visit_setcomp(struct symtable *st, expr_ty s);
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	173 static int symtable_visit_dictcomp(struct symtable *st, expr_ty s);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	174 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	175 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	176 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	177 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	178 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	179 static int symtable_visit_slice(struct symtable *st, slice_ty);
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	180 static int symtable_visit_params(struct symtable st, asdl_seq args);
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	181 static int symtable_visit_argannotations(struct symtable st, asdl_seq args);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	182 static int symtable_implicit_arg(struct symtable *st, int pos);
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	183 static int symtable_visit_annotations(struct symtable *st, stmt_ty s);
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
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	186 static identifier top = NULL, lambda = NULL, genexpr = NULL,
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	187 listcomp = NULL, setcomp = NULL, dictcomp = NULL, __class__ = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	188
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	189 #define GET_IDENTIFIER(VAR) \
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	190 ((VAR) ? (VAR) : ((VAR) = PyUnicode_InternFromString(# VAR)))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	191
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	192 #define DUPLICATE_ARGUMENT \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	193 "duplicate argument '%s' in function definition"
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	194
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	195 static struct symtable *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	196 symtable_new(void)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	197 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	198 struct symtable *st;
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 = (struct symtable *)PyMem_Malloc(sizeof(struct symtable));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	201 if (st == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	202 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	203
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	204 st->st_filename = NULL;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	205 st->st_blocks = NULL;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	206
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	207 if ((st->st_stack = PyList_New(0)) == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	208 goto fail;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	209 if ((st->st_blocks = PyDict_New()) == NULL)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	210 goto fail;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	211 st->st_cur = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	212 st->st_private = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	213 return st;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	214 fail:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	215 PySymtable_Free(st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	216 return NULL;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	219 struct symtable *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	220 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	221 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	222 struct symtable *st = symtable_new();
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	223 asdl_seq *seq;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	224 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	225
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	226 if (st == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	227 return st;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	228 st->st_filename = filename;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	229 st->st_future = future;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	230 /* Make the initial symbol information gathering pass */
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	231 if (!GET_IDENTIFIER(top) \|\|
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	232 !symtable_enter_block(st, top, ModuleBlock, (void *)mod, 0)) {
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	233 PySymtable_Free(st);
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	234 return NULL;
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	235 }
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	236
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	237 st->st_top = st->st_cur;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	238 st->st_cur->ste_unoptimized = OPT_TOPLEVEL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	239 switch (mod->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	240 case Module_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	241 seq = mod->v.Module.body;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	242 for (i = 0; i < asdl_seq_LEN(seq); i++)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	243 if (!symtable_visit_stmt(st,
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	244 (stmt_ty)asdl_seq_GET(seq, i)))
35742 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 Expression_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	248 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	249 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	250 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	251 case Interactive_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	252 seq = mod->v.Interactive.body;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	253 for (i = 0; i < asdl_seq_LEN(seq); i++)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	254 if (!symtable_visit_stmt(st,
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	255 (stmt_ty)asdl_seq_GET(seq, i)))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	256 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	257 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	258 case Suite_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	259 PyErr_SetString(PyExc_RuntimeError,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	260 "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	261 goto error;
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	262 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	263 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	264 PySymtable_Free(st);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	265 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	266 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	267 /* Make the second symbol analysis pass */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	268 if (symtable_analyze(st))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	269 return st;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	270 PySymtable_Free(st);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	271 return NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	272 error:
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	273 (void) symtable_exit_block(st, (void *)mod);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	274 PySymtable_Free(st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	275 return NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	276 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	277
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	278 void
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	279 PySymtable_Free(struct symtable *st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	280 {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	281 Py_XDECREF(st->st_blocks);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	282 Py_XDECREF(st->st_stack);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	283 PyMem_Free((void *)st);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	284 }
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 PySTEntryObject *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	287 PySymtable_Lookup(struct symtable st, void key)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	288 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	289 PyObject k, v;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	290
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	291 k = PyLong_FromVoidPtr(key);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	292 if (k == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	293 return NULL;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	294 v = PyDict_GetItem(st->st_blocks, k);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	295 if (v) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	296 assert(PySTEntry_Check(v));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	297 Py_INCREF(v);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	298 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	299 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	300 PyErr_SetString(PyExc_KeyError,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	301 "unknown symbol table entry");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	302 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	303
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	304 Py_DECREF(k);
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	305 return (PySTEntryObject *)v;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	306 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	307
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	308 int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	309 PyST_GetScope(PySTEntryObject ste, PyObject name)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	310 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	311 PyObject *v = PyDict_GetItem(ste->ste_symbols, name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	312 if (!v)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	313 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	314 assert(PyInt_Check(v));
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	315 return (PyInt_AS_LONG(v) >> SCOPE_OFFSET) & SCOPE_MASK;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	316 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	317
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	318
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	319 /* 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	320
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	321 The next several functions are helpers for symtable_analyze(),
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	322 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	323 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	324 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	325
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	326 There are also two kinds of global variables, implicit and explicit. An
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	327 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	328 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	329 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	330 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	331 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	332 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	333 is treated as a local.
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 The symbol table requires two passes to determine the scope of each name.
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	336 The first pass collects raw facts from the AST via the symtable_visit_*
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	337 functions: the name is a parameter here, the name is used but not defined
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	338 here, etc. The second pass analyzes these facts during a pass over the
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	339 PySTEntryObjects created during pass 1.
35742 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 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	342 the set of all name bindings visible to its children. These bindings
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	343 are used to determine if non-local variables are free or implicit globals.
41508 55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	344 Names which are explicitly declared nonlocal must exist in this set of
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	345 visible names - if they do not, a syntax error is raised. After doing
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	346 the local analysis, it analyzes each of its child blocks using an
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	347 updated set of name bindings.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	348
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	349 The children update the free variable set. If a local variable is added to
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	350 the free variable set by the child, the variable is marked as a cell. The
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	351 function object being defined must provide runtime storage for the variable
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	352 that may outlive the function's frame. Cell variables are removed from the
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	353 free set before the analyze function returns to its parent.
41508 55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	354
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	355 During analysis, the names are:
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	356 symbols: dict mapping from symbol names to flag values (including offset scope values)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	357 scopes: dict mapping from symbol names to scope values (no offset)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	358 local: set of all symbol names local to the current scope
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	359 bound: set of all symbol names local to a containing function scope
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	360 free: set of all symbol names referenced but not bound in child scopes
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	361 global: set of all symbol names explicitly declared as global
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	362 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	363
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	364 #define SET_SCOPE(DICT, NAME, I) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	365 PyObject *o = PyInt_FromLong(I); \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	366 if (!o) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	367 return 0; \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	368 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	369 Py_DECREF(o); \
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	370 return 0; \
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	371 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	372 Py_DECREF(o); \
35742 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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	375 /* Decide on scope of name, given flags.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	376
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	377 The dicts passed in as arguments are modified as necessary.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	378 ste is passed so that flags can be updated.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	379 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	380
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	381 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	382 analyze_name(PySTEntryObject ste, PyObject scopes, PyObject *name, long flags,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	383 PyObject bound, PyObject local, PyObject *free,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	384 PyObject *global)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	385 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	386 if (flags & DEF_GLOBAL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	387 if (flags & DEF_PARAM) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	388 PyErr_Format(PyExc_SyntaxError,
42043 61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	389 "name '%U' is parameter and global",
61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	390 name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	391 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	392 }
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	393 if (flags & DEF_NONLOCAL) {
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	394 PyErr_Format(PyExc_SyntaxError,
42043 61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	395 "name '%U' is nonlocal and global",
61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	396 name);
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	397 return 0;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	398 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	399 SET_SCOPE(scopes, name, GLOBAL_EXPLICIT);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	400 if (PySet_Add(global, name) < 0)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	401 return 0;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	402 if (bound && (PySet_Discard(bound, name) < 0))
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	403 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	404 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	405 }
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	406 if (flags & DEF_NONLOCAL) {
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	407 if (flags & DEF_PARAM) {
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	408 PyErr_Format(PyExc_SyntaxError,
42043 61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	409 "name '%U' is parameter and nonlocal",
61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	410 name);
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	411 return 0;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	412 }
41508 55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	413 if (!bound) {
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	414 PyErr_Format(PyExc_SyntaxError,
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	415 "nonlocal declaration not allowed at module level");
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	416 return 0;
55d761acdcbc Don't crash when nonlocal is used at module level (fixes SF#1705365) Nick Coghlan <ncoghlan@gmail.com> parents: 41464 diff changeset	417 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	418 if (!PySet_Contains(bound, name)) {
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	419 PyErr_Format(PyExc_SyntaxError,
42043 61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	420 "no binding for nonlocal '%U' found",
61fd5444d95f Simplify error formatting. Fix error message in Walter Dörwald <walter@livinglogic.de> parents: 42042 diff changeset	421 name);
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	422
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	423 return 0;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	424 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	425 SET_SCOPE(scopes, name, FREE);
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	426 ste->ste_free = 1;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	427 return PySet_Add(free, name) >= 0;
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	428 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	429 if (flags & DEF_BOUND) {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	430 SET_SCOPE(scopes, name, LOCAL);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	431 if (PySet_Add(local, name) < 0)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	432 return 0;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	433 if (PySet_Discard(global, name) < 0)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	434 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	435 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	436 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	437 /* 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	438 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	439 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	440 is nested.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	441 */
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	442 if (bound && PySet_Contains(bound, name)) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	443 SET_SCOPE(scopes, name, FREE);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	444 ste->ste_free = 1;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	445 return PySet_Add(free, name) >= 0;
35742 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 /* 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	448 explicit? It could also be global implicit.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	449 */
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	450 if (global && PySet_Contains(global, name)) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	451 SET_SCOPE(scopes, name, GLOBAL_EXPLICIT);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	452 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	453 }
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	454 if (ste->ste_nested)
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	455 ste->ste_free = 1;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	456 SET_SCOPE(scopes, name, GLOBAL_IMPLICIT);
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	457 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	458 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	459
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	460 #undef SET_SCOPE
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	461
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	462 /* 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	463 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	464 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	465
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	466 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	467 That's safe because no name can be free and local in the same scope.
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	468
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	469 The 'restrict' argument may be set to a string to restrict the analysis
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	470 to the one variable whose name equals that string (e.g. "__class__").
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	471 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	472
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	473 static int
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	474 analyze_cells(PyObject scopes, PyObject free, const char *restrict)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	475 {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	476 PyObject name, v, *v_cell;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	477 int success = 0;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	478 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	479
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	480 v_cell = PyInt_FromLong(CELL);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	481 if (!v_cell)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	482 return 0;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	483 while (PyDict_Next(scopes, &pos, &name, &v)) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	484 long scope;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	485 assert(PyInt_Check(v));
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	486 scope = PyInt_AS_LONG(v);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	487 if (scope != LOCAL)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	488 continue;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	489 if (!PySet_Contains(free, name))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	490 continue;
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	491 if (restrict != NULL &&
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	492 PyUnicode_CompareWithASCIIString(name, restrict))
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	493 continue;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	494 /* 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	495 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	496 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	497 */
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	498 if (PyDict_SetItem(scopes, name, v_cell) < 0)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	499 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	500 if (PySet_Discard(free, name) < 0)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	501 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	502 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	503 success = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	504 error:
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	505 Py_DECREF(v_cell);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	506 return success;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	507 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	508
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	509 /* Check for illegal statements in unoptimized namespaces */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	510 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	511 check_unoptimized(const PySTEntryObject* ste) {
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	512 const char* trailer;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	513
35780 72cb041ccde3 Fix check_unoptimized() function. The only optimized namespaces are Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35779 diff changeset	514 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	515 \|\| !(ste->ste_free \|\| ste->ste_child_free))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	516 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	517
35759 d91ed7107fd2 ANSI-C-ify the placement of local var declarations. Armin Rigo <arigo@tunes.org> parents: 35742 diff changeset	518 trailer = (ste->ste_child_free ?
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	519 "contains a nested function with free variables" :
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	520 "is a nested function");
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	521
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	522 switch (ste->ste_unoptimized) {
39782 c94f37054f19 Patch #1550800: make exec a function. Georg Brandl <georg@python.org> parents: 39694 diff changeset	523 case OPT_TOPLEVEL: /* import * at top-level is fine */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	524 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	525 case OPT_IMPORT_STAR:
42045 171f0e073671 Fix PyErr_Format() call (missing exception class). Walter Dörwald <walter@livinglogic.de> parents: 42044 diff changeset	526 PyErr_Format(PyExc_SyntaxError,
171f0e073671 Fix PyErr_Format() call (missing exception class). Walter Dörwald <walter@livinglogic.de> parents: 42044 diff changeset	527 "import * is not allowed in function '%U' because it %s",
42044 faa626d6e675 Use PyErr_Format() directly instead of Walter Dörwald <walter@livinglogic.de> parents: 42043 diff changeset	528 ste->ste_name, trailer);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	529 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	530 }
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 PyErr_SyntaxLocation(ste->ste_table->st_filename,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	533 ste->ste_opt_lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	534 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	535 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	536
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	537 /* Enter the final scope information into the ste_symbols dict.
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	538 *
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	539 * 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	540 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	541 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	542 update_symbols(PyObject symbols, PyObject scopes,
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	543 PyObject bound, PyObject free, int classflag)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	544 {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	545 PyObject name = NULL, itr = NULL;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	546 PyObject v = NULL, v_scope = NULL, v_new = NULL, v_free = NULL;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	547 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	548
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	549 /* Update scope information for all symbols in this scope */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	550 while (PyDict_Next(symbols, &pos, &name, &v)) {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	551 long scope, flags;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	552 assert(PyInt_Check(v));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	553 flags = PyInt_AS_LONG(v);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	554 v_scope = PyDict_GetItem(scopes, name);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	555 assert(v_scope && PyInt_Check(v_scope));
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	556 scope = PyInt_AS_LONG(v_scope);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	557 flags \|= (scope << SCOPE_OFFSET);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	558 v_new = PyInt_FromLong(flags);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	559 if (!v_new)
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	560 return 0;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	561 if (PyDict_SetItem(symbols, name, v_new) < 0) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	562 Py_DECREF(v_new);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	563 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	564 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	565 Py_DECREF(v_new);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	566 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	567
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	568 /* Record not yet resolved free variables from children (if any) */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	569 v_free = PyInt_FromLong(FREE << SCOPE_OFFSET);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	570 if (!v_free)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	571 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	572
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	573 itr = PyObject_GetIter(free);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	574 if (!itr)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	575 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	576
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	577 while ((name = PyIter_Next(itr))) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	578 v = PyDict_GetItem(symbols, name);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	579
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	580 /* Handle symbol that already exists in this scope */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	581 if (v) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	582 /* Handle a free variable in a method of
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	583 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	584 or global in the class scope.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	585 */
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	586 if (classflag &&
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	587 PyInt_AS_LONG(v) & (DEF_BOUND \| DEF_GLOBAL)) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	588 long flags = PyInt_AS_LONG(v) \| DEF_FREE_CLASS;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	589 v_new = PyInt_FromLong(flags);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	590 if (!v_new) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	591 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	592 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	593 if (PyDict_SetItem(symbols, name, v_new) < 0) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	594 Py_DECREF(v_new);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	595 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	596 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	597 Py_DECREF(v_new);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	598 }
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	599 /* It's a cell, or already free in this scope */
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	600 Py_DECREF(name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	601 continue;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	602 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	603 /* Handle global symbol */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	604 if (!PySet_Contains(bound, name)) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	605 Py_DECREF(name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	606 continue; /* it's a global */
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	607 }
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	608 /* Propagate new free symbol up the lexical stack */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	609 if (PyDict_SetItem(symbols, name, v_free) < 0) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	610 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	611 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	612 Py_DECREF(name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	613 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	614 Py_DECREF(itr);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	615 Py_DECREF(v_free);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	616 return 1;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	617 error:
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	618 Py_XDECREF(v_free);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	619 Py_XDECREF(itr);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	620 Py_XDECREF(name);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	621 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	622 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	623
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	624 /* Make final symbol table decisions for block of ste.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	625 Arguments:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	626 ste -- current symtable entry (input/output)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	627 bound -- set of variables bound in enclosing scopes (input)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	628 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	629 globals -- set of declared global variables in enclosing scopes (input)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	630 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	631
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	632 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	633 analyze_block(PySTEntryObject ste, PyObject bound, PyObject *free,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	634 PyObject *global)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	635 {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	636 PyObject name, v, local = NULL, scopes = NULL, *newbound = NULL;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	637 PyObject newglobal = NULL, newfree = NULL;
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	638 int i, success = 0;
7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36240 diff changeset	639 Py_ssize_t pos = 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	640
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	641 scopes = PyDict_New();
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	642 if (!scopes)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	643 goto error;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	644 local = PySet_New(NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	645 if (!local)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	646 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	647 newglobal = PySet_New(NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	648 if (!newglobal)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	649 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	650 newfree = PySet_New(NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	651 if (!newfree)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	652 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	653 newbound = PySet_New(NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	654 if (!newbound)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	655 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	656
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	657 /* Class namespace has no effect on names visible in
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	658 nested functions, so populate the global and bound
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	659 sets to be passed to child blocks before analyzing
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	660 this one.
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	661 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	662 if (ste->ste_type == ClassBlock) {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	663 /* Pass down previously bound symbols */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	664 if (bound) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	665 if (!PyNumber_InPlaceOr(newbound, bound))
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	666 goto error;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	667 Py_DECREF(newbound);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	668 }
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	669 /* Pass down known globals */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	670 if (!PyNumber_InPlaceOr(newglobal, global))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	671 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	672 Py_DECREF(newglobal);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	673 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	674
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	675 /* Analyze symbols in current scope */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	676 assert(PySTEntry_Check(ste));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	677 assert(PyDict_Check(ste->ste_symbols));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	678 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	679 long flags = PyInt_AS_LONG(v);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	680 if (!analyze_name(ste, scopes, name, flags, bound, local, free,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	681 global))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	682 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	683 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	684
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	685 /* Populate global and bound sets to be passed to children. */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	686 if (ste->ste_type != ClassBlock) {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	687 /* Add function locals to bound set */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	688 if (ste->ste_type == FunctionBlock) {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	689 if (!PyNumber_InPlaceOr(newbound, local))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	690 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	691 Py_DECREF(newbound);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	692 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	693 /* Pass down previously bound symbols */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	694 if (bound) {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	695 if (!PyNumber_InPlaceOr(newbound, bound))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	696 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	697 Py_DECREF(newbound);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	698 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	699 /* Pass down known globals */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	700 if (!PyNumber_InPlaceOr(newglobal, global))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	701 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	702 Py_DECREF(newglobal);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	703 }
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	704 else {
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	705 /* Special-case __class__ */
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	706 if (!GET_IDENTIFIER(__class__))
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	707 goto error;
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	708 assert(PySet_Contains(local, __class__) == 1);
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	709 if (PySet_Add(newbound, __class__) < 0)
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	710 goto error;
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	711 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	712
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	713 /* Recursively call analyze_block() on each child block */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	714 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	715 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	716 PySTEntryObject* entry;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	717 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	718 entry = (PySTEntryObject*)c;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	719 if (!analyze_block(entry, newbound, newfree, newglobal))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	720 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	721 /* Check if any children have free variables */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	722 if (entry->ste_free \|\| entry->ste_child_free)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	723 ste->ste_child_free = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	724 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	725
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	726 /* Check if any local variables must be converted to cell variables */
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	727 if (ste->ste_type == FunctionBlock && !analyze_cells(scopes, newfree,
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	728 NULL))
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	729 goto error;
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	730 else if (ste->ste_type == ClassBlock && !analyze_cells(scopes, newfree,
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	731 "__class__"))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	732 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	733 /* Records the results of the analysis in the symbol table entry */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	734 if (!update_symbols(ste->ste_symbols, scopes, bound, newfree,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	735 ste->ste_type == ClassBlock))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	736 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	737 if (!check_unoptimized(ste))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	738 goto error;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	739
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	740 if (!PyNumber_InPlaceOr(free, newfree))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	741 goto error;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	742 Py_DECREF(free);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	743 success = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	744 error:
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	745 Py_XDECREF(scopes);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	746 Py_XDECREF(local);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	747 Py_XDECREF(newbound);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	748 Py_XDECREF(newglobal);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	749 Py_XDECREF(newfree);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	750 if (!success)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	751 assert(PyErr_Occurred());
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	752 return success;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	753 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	754
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	755 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	756 symtable_analyze(struct symtable *st)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	757 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	758 PyObject free, global;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	759 int r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	760
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	761 free = PySet_New(NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	762 if (!free)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	763 return 0;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	764 global = PySet_New(NULL);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	765 if (!global) {
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	766 Py_DECREF(free);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	767 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	768 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	769 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	770 Py_DECREF(free);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	771 Py_DECREF(global);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	772 return r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	773 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	774
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	775
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	776 static int
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	777 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	778 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	779 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	780 lineno, NULL, NULL) < 0) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	781 if (PyErr_ExceptionMatches(PyExc_SyntaxWarning)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	782 PyErr_SetString(PyExc_SyntaxError, msg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	783 PyErr_SyntaxLocation(st->st_filename,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	784 st->st_cur->ste_lineno);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	785 }
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 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	789 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	790
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	791 /* symtable_enter_block() gets a reference via PySTEntry_New().
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	792 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	793 in symtable_exit_block().
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	796 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	797 symtable_exit_block(struct symtable st, void ast)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	798 {
36521 30aef3ce2b26 Use Py_ssize_t to count the Martin v. Löwis <martin@v.loewis.de> parents: 36501 diff changeset	799 Py_ssize_t end;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	800
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	801 Py_CLEAR(st->st_cur);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	802 end = PyList_GET_SIZE(st->st_stack) - 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	803 if (end >= 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	804 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	805 end);
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	806 if (st->st_cur == NULL)
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	807 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	808 Py_INCREF(st->st_cur);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	809 if (PySequence_DelItem(st->st_stack, end) < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	810 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	811 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	812 return 1;
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
35793 914ec0afa51c Do not pollute name block_ty, prefix with _Py_ Neal Norwitz <nnorwitz@gmail.com> parents: 35780 diff changeset	816 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	817 void *ast, int lineno)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	818 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	819 PySTEntryObject *prev = NULL;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	820
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	821 if (st->st_cur) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	822 prev = st->st_cur;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	823 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	824 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	825 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	826 Py_DECREF(st->st_cur);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	827 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	828 st->st_cur = PySTEntry_New(st, name, block, ast, lineno);
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	829 if (st->st_cur == NULL)
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	830 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	831 if (name == GET_IDENTIFIER(top))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	832 st->st_global = st->st_cur->ste_symbols;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	833 if (prev) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	834 if (PyList_Append(prev->ste_children,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	835 (PyObject *)st->st_cur) < 0) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	836 return 0;
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 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	839 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	840 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	841
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	842 static long
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	843 symtable_lookup(struct symtable st, PyObject name)
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 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	846 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	847 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	848 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	849 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	850 Py_DECREF(mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	851 if (!o)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	852 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	853 return PyInt_AsLong(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	854 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	855
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	856 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	857 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	858 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	859 PyObject *o;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	860 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	861 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	862 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	863
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	864
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 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	866 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	867 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	868 if ((o = PyDict_GetItem(dict, mangled))) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	869 val = PyInt_AS_LONG(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	870 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	871 /* 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	872 PyErr_Format(PyExc_SyntaxError, DUPLICATE_ARGUMENT,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	873 PyString_AsString(name));
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	874 PyErr_SyntaxLocation(st->st_filename,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	875 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	876 goto error;
35742 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 val \|= flag;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	879 } else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	880 val = flag;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	881 o = PyInt_FromLong(val);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	882 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	883 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	884 if (PyDict_SetItem(dict, mangled, o) < 0) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	885 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	886 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	887 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	888 Py_DECREF(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	889
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	890 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	891 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	892 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	893 } else if (flag & DEF_GLOBAL) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	894 /* 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	895 perhaps only DEF_FREE_GLOBAL */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	896 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	897 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	898 val \|= PyInt_AS_LONG(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	899 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	900 o = PyInt_FromLong(val);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	901 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	902 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	903 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	904 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	905 goto error;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	906 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	907 Py_DECREF(o);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	908 }
35893 825655bfdf20 Last batch of ref leaks in new AST code. Neal Norwitz <nnorwitz@gmail.com> parents: 35880 diff changeset	909 Py_DECREF(mangled);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	910 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	911
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	912 error:
19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	913 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	914 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	915 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	916
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	917 /* 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	918 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	919 function.
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	920
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	921 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	922 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	923 */
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 #define VISIT(ST, TYPE, V) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	926 if (!symtable_visit_ ## TYPE((ST), (V))) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	927 return 0;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	928
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	929 #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	930 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	931 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	932 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	933 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	934
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	935 #define VISIT_SEQ(ST, TYPE, SEQ) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	936 int i; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	937 asdl_seq seq = (SEQ); / avoid variable capture */ \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	938 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	939 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	940 if (!symtable_visit_ ## TYPE((ST), elt)) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	941 return 0; \
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 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	944
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	945 #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	946 int i; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	947 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	948 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	949 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	950 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	951 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	952 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	953 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	954 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	955 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	956
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	957 #define VISIT_SEQ_TAIL(ST, TYPE, SEQ, START) { \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	958 int i; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	959 asdl_seq seq = (SEQ); / avoid variable capture */ \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	960 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	961 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	962 if (!symtable_visit_ ## TYPE((ST), elt)) \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	963 return 0; \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	964 } \
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	965 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	966
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	967 #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	968 int i; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	969 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	970 for (i = (START); i < asdl_seq_LEN(seq); i++) { \
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	971 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	972 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	973 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	974 return 0; \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	975 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	976 } \
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	977 }
79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	978
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	979 #define VISIT_KWONLYDEFAULTS(ST, KW_DEFAULTS) { \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	980 int i = 0; \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	981 asdl_seq seq = (KW_DEFAULTS); / avoid variable capture */ \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	982 for (i = 0; i < asdl_seq_LEN(seq); i++) { \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	983 expr_ty elt = (expr_ty)asdl_seq_GET(seq, i); \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	984 if (!elt) continue; /* can be NULL */ \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	985 if (!symtable_visit_expr((ST), elt)) \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	986 return 0; \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	987 } \
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	988 }
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	989
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	990 static int
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	991 symtable_new_tmpname(struct symtable *st)
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	992 {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	993 char tmpname[256];
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	994 identifier tmp;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	995
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	996 PyOS_snprintf(tmpname, sizeof(tmpname), "_[%d]",
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	997 ++st->st_cur->ste_tmpname);
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	998 tmp = PyUnicode_InternFromString(tmpname);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	999 if (!tmp)
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1000 return 0;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1001 if (!symtable_add_def(st, tmp, DEF_LOCAL))
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1002 return 0;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1003 Py_DECREF(tmp);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1004 return 1;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1005 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1006
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1007
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1008
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1009 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1010 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	1011 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1012 switch (s->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1013 case FunctionDef_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1014 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	1015 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1016 if (s->v.FunctionDef.args->defaults)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1017 VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1018 if (s->v.FunctionDef.args->kw_defaults)
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1019 VISIT_KWONLYDEFAULTS(st,
1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1020 s->v.FunctionDef.args->kw_defaults);
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1021 if (!symtable_visit_annotations(st, s))
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1022 return 0;
41824 24b60622b944 Merged revisions 55407-55513 via svnmerge from Guido van Rossum <guido@python.org> parents: 41769 diff changeset	1023 if (s->v.FunctionDef.decorator_list)
24b60622b944 Merged revisions 55407-55513 via svnmerge from Guido van Rossum <guido@python.org> parents: 41769 diff changeset	1024 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	1025 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	1026 FunctionBlock, (void *)s, s->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1027 return 0;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1028 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	1029 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	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 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	1034 PyObject *tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1035 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	1036 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1037 VISIT_SEQ(st, expr, s->v.ClassDef.bases);
41226 19f7ff443718 Implement PEP 3115 -- new metaclass syntax and semantics. Guido van Rossum <guido@python.org> parents: 40965 diff changeset	1038 VISIT_SEQ(st, keyword, s->v.ClassDef.keywords);
19f7ff443718 Implement PEP 3115 -- new metaclass syntax and semantics. Guido van Rossum <guido@python.org> parents: 40965 diff changeset	1039 if (s->v.ClassDef.starargs)
19f7ff443718 Implement PEP 3115 -- new metaclass syntax and semantics. Guido van Rossum <guido@python.org> parents: 40965 diff changeset	1040 VISIT(st, expr, s->v.ClassDef.starargs);
19f7ff443718 Implement PEP 3115 -- new metaclass syntax and semantics. Guido van Rossum <guido@python.org> parents: 40965 diff changeset	1041 if (s->v.ClassDef.kwargs)
19f7ff443718 Implement PEP 3115 -- new metaclass syntax and semantics. Guido van Rossum <guido@python.org> parents: 40965 diff changeset	1042 VISIT(st, expr, s->v.ClassDef.kwargs);
41824 24b60622b944 Merged revisions 55407-55513 via svnmerge from Guido van Rossum <guido@python.org> parents: 41769 diff changeset	1043 if (s->v.ClassDef.decorator_list)
24b60622b944 Merged revisions 55407-55513 via svnmerge from Guido van Rossum <guido@python.org> parents: 41769 diff changeset	1044 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	1045 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	1046 (void *)s, s->lineno))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1047 return 0;
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1048 if (!GET_IDENTIFIER(__class__) \|\|
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1049 !symtable_add_def(st, __class__, DEF_LOCAL)) {
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1050 symtable_exit_block(st, s);
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1051 return 0;
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1052 }
35779 19d796bd740f Fix private name mangling. The symtable also must do mangles so that Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 35766 diff changeset	1053 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	1054 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	1055 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	1056 st->st_private = tmp;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1057 if (!symtable_exit_block(st, s))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1058 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1059 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	1060 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1061 case Return_kind:
38673 a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1062 if (s->v.Return.value) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1063 VISIT(st, expr, s->v.Return.value);
38673 a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1064 st->st_cur->ste_returns_value = 1;
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1065 if (st->st_cur->ste_generator) {
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1066 PyErr_SetString(PyExc_SyntaxError,
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1067 RETURN_VAL_IN_GENERATOR);
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1068 PyErr_SyntaxLocation(st->st_filename,
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1069 s->lineno);
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1070 return 0;
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1071 }
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1072 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1073 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1074 case Delete_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1075 VISIT_SEQ(st, expr, s->v.Delete.targets);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1076 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1077 case Assign_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1078 VISIT_SEQ(st, expr, s->v.Assign.targets);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1079 VISIT(st, expr, s->v.Assign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1080 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1081 case AugAssign_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1082 VISIT(st, expr, s->v.AugAssign.target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1083 VISIT(st, expr, s->v.AugAssign.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1084 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1085 case For_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1086 VISIT(st, expr, s->v.For.target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1087 VISIT(st, expr, s->v.For.iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1088 VISIT_SEQ(st, stmt, s->v.For.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1089 if (s->v.For.orelse)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1090 VISIT_SEQ(st, stmt, s->v.For.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1091 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1092 case While_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1093 VISIT(st, expr, s->v.While.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1094 VISIT_SEQ(st, stmt, s->v.While.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1095 if (s->v.While.orelse)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1096 VISIT_SEQ(st, stmt, s->v.While.orelse);
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 If_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1099 /* XXX if 0: and lookup_yield() hacks */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1100 VISIT(st, expr, s->v.If.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1101 VISIT_SEQ(st, stmt, s->v.If.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1102 if (s->v.If.orelse)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1103 VISIT_SEQ(st, stmt, s->v.If.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1104 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1105 case Raise_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1106 if (s->v.Raise.type) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1107 VISIT(st, expr, s->v.Raise.type);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1108 if (s->v.Raise.inst) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1109 VISIT(st, expr, s->v.Raise.inst);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1110 if (s->v.Raise.tback)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1111 VISIT(st, expr, s->v.Raise.tback);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1112 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1113 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1114 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1115 case TryExcept_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1116 VISIT_SEQ(st, stmt, s->v.TryExcept.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1117 VISIT_SEQ(st, stmt, s->v.TryExcept.orelse);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1118 VISIT_SEQ(st, excepthandler, s->v.TryExcept.handlers);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1119 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1120 case TryFinally_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1121 VISIT_SEQ(st, stmt, s->v.TryFinally.body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1122 VISIT_SEQ(st, stmt, s->v.TryFinally.finalbody);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1123 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1124 case Assert_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1125 VISIT(st, expr, s->v.Assert.test);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1126 if (s->v.Assert.msg)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1127 VISIT(st, expr, s->v.Assert.msg);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1128 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1129 case Import_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1130 VISIT_SEQ(st, alias, s->v.Import.names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1131 /* XXX Don't have the lineno available inside
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1132 visit_alias */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1133 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	1134 st->st_cur->ste_opt_lineno = s->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1135 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1136 case ImportFrom_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1137 VISIT_SEQ(st, alias, s->v.ImportFrom.names);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1138 /* XXX Don't have the lineno available inside
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1139 visit_alias */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1140 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	1141 st->st_cur->ste_opt_lineno = s->lineno;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1142 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1143 case Global_kind: {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1144 int i;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1145 asdl_seq *seq = s->v.Global.names;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1146 for (i = 0; i < asdl_seq_LEN(seq); i++) {
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36739 diff changeset	1147 identifier name = (identifier)asdl_seq_GET(seq, i);
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1148 char *c_name = PyUnicode_AsString(name);
36231 d3f4c467e439 Fix icc warnings: conversion from "long" to "int" may lose significant bits Neal Norwitz <nnorwitz@gmail.com> parents: 36226 diff changeset	1149 long cur = symtable_lookup(st, name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1150 if (cur < 0)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1151 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1152 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	1153 char buf[256];
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1154 if (cur & DEF_LOCAL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1155 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1156 GLOBAL_AFTER_ASSIGN,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1157 c_name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1158 else
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1159 PyOS_snprintf(buf, sizeof(buf),
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1160 GLOBAL_AFTER_USE,
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1161 c_name);
36089 4aa01879a8f5 Bug #889500, fix line number on SyntaxWarning for global declarations. Neal Norwitz <nnorwitz@gmail.com> parents: 35939 diff changeset	1162 if (!symtable_warn(st, buf, s->lineno))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1163 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1164 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1165 if (!symtable_add_def(st, name, DEF_GLOBAL))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1166 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1167 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1168 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1169 }
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1170 case Nonlocal_kind: {
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1171 int i;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1172 asdl_seq *seq = s->v.Nonlocal.names;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1173 for (i = 0; i < asdl_seq_LEN(seq); i++) {
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1174 identifier name = (identifier)asdl_seq_GET(seq, i);
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1175 char *c_name = PyUnicode_AsString(name);
40965 30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1176 long cur = symtable_lookup(st, name);
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1177 if (cur < 0)
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1178 return 0;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1179 if (cur & (DEF_LOCAL \| USE)) {
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1180 char buf[256];
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1181 if (cur & DEF_LOCAL)
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1182 PyOS_snprintf(buf, sizeof(buf),
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1183 NONLOCAL_AFTER_ASSIGN,
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1184 c_name);
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1185 else
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1186 PyOS_snprintf(buf, sizeof(buf),
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1187 NONLOCAL_AFTER_USE,
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1188 c_name);
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1189 if (!symtable_warn(st, buf, s->lineno))
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1190 return 0;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1191 }
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1192 if (!symtable_add_def(st, name, DEF_NONLOCAL))
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1193 return 0;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1194 }
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1195 break;
30e5cb3a55ac Provisional implementation of PEP 3104. Jeremy Hylton <jeremy@alum.mit.edu> parents: 40898 diff changeset	1196 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1197 case Expr_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1198 VISIT(st, expr, s->v.Expr.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1199 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1200 case Pass_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1201 case Break_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1202 case Continue_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1203 /* nothing to do here */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1204 break;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1205 case With_kind:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1206 if (!symtable_new_tmpname(st))
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1207 return 0;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1208 VISIT(st, expr, s->v.With.context_expr);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1209 if (s->v.With.optional_vars) {
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1210 if (!symtable_new_tmpname(st))
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1211 return 0;
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1212 VISIT(st, expr, s->v.With.optional_vars);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1213 }
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1214 VISIT_SEQ(st, stmt, s->v.With.body);
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1215 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1216 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1217 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1218 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1219
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1220 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1221 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	1222 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1223 switch (e->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1224 case BoolOp_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1225 VISIT_SEQ(st, expr, e->v.BoolOp.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1226 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1227 case BinOp_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1228 VISIT(st, expr, e->v.BinOp.left);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1229 VISIT(st, expr, e->v.BinOp.right);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1230 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1231 case UnaryOp_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1232 VISIT(st, expr, e->v.UnaryOp.operand);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1233 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1234 case Lambda_kind: {
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1235 if (!GET_IDENTIFIER(lambda) \|\|
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1236 !symtable_add_def(st, lambda, DEF_LOCAL))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1237 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1238 if (e->v.Lambda.args->defaults)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1239 VISIT_SEQ(st, expr, e->v.Lambda.args->defaults);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1240 /* XXX how to get line numbers for expressions */
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1241 if (!symtable_enter_block(st, lambda,
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1242 FunctionBlock, (void *)e, 0))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1243 return 0;
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1244 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	1245 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	1246 if (!symtable_exit_block(st, (void *)e))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1247 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1248 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1249 }
36666 6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1250 case IfExp_kind:
6165927431d6 PEP 308 implementation, including minor refdocs and some testcases. It Thomas Wouters <thomas@python.org> parents: 36521 diff changeset	1251 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	1252 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	1253 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	1254 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1255 case Dict_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1256 VISIT_SEQ(st, expr, e->v.Dict.keys);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1257 VISIT_SEQ(st, expr, e->v.Dict.values);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1258 break;
39694 da3a9f402886 Fix set literals not being visited in symtable creation. Georg Brandl <georg@python.org> parents: 39678 diff changeset	1259 case Set_kind:
da3a9f402886 Fix set literals not being visited in symtable creation. Georg Brandl <georg@python.org> parents: 39678 diff changeset	1260 VISIT_SEQ(st, expr, e->v.Set.elts);
da3a9f402886 Fix set literals not being visited in symtable creation. Georg Brandl <georg@python.org> parents: 39678 diff changeset	1261 break;
36695 b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1262 case GeneratorExp_kind:
b6d2f6fd3e11 PEP 343 -- the with-statement. Guido van Rossum <guido@python.org> parents: 36666 diff changeset	1263 if (!symtable_visit_genexp(st, e))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1264 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1265 break;
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1266 case ListComp_kind:
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1267 if (!symtable_visit_listcomp(st, e))
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1268 return 0;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1269 break;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1270 case SetComp_kind:
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1271 if (!symtable_visit_setcomp(st, e))
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1272 return 0;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1273 break;
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1274 case DictComp_kind:
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1275 if (!symtable_visit_dictcomp(st, e))
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1276 return 0;
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1277 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1278 case Yield_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1279 if (e->v.Yield.value)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1280 VISIT(st, expr, e->v.Yield.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1281 st->st_cur->ste_generator = 1;
38673 a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1282 if (st->st_cur->ste_returns_value) {
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1283 PyErr_SetString(PyExc_SyntaxError,
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1284 RETURN_VAL_IN_GENERATOR);
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1285 PyErr_SyntaxLocation(st->st_filename,
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1286 e->lineno);
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1287 return 0;
a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	1288 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1289 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1290 case Compare_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1291 VISIT(st, expr, e->v.Compare.left);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1292 VISIT_SEQ(st, expr, e->v.Compare.comparators);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1293 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1294 case Call_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1295 VISIT(st, expr, e->v.Call.func);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1296 VISIT_SEQ(st, expr, e->v.Call.args);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1297 VISIT_SEQ(st, keyword, e->v.Call.keywords);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1298 if (e->v.Call.starargs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1299 VISIT(st, expr, e->v.Call.starargs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1300 if (e->v.Call.kwargs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1301 VISIT(st, expr, e->v.Call.kwargs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1302 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1303 case Num_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1304 case Str_kind:
40898 b58a4374ac21 Make bytes_repr return a string containing a b"" literal. Georg Brandl <georg@python.org> parents: 40788 diff changeset	1305 case Bytes_kind:
b58a4374ac21 Make bytes_repr return a string containing a b"" literal. Georg Brandl <georg@python.org> parents: 40788 diff changeset	1306 case Ellipsis_kind:
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1307 /* Nothing to do here. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1308 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1309 /* The following exprs can be assignment targets. */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1310 case Attribute_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1311 VISIT(st, expr, e->v.Attribute.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1312 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1313 case Subscript_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1314 VISIT(st, expr, e->v.Subscript.value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1315 VISIT(st, slice, e->v.Subscript.slice);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1316 break;
41699 e16c8e5c5ca4 Merged revisions 55225-55227,55229-55269 via svnmerge from Guido van Rossum <guido@python.org> parents: 41508 diff changeset	1317 case Starred_kind:
e16c8e5c5ca4 Merged revisions 55225-55227,55229-55269 via svnmerge from Guido van Rossum <guido@python.org> parents: 41508 diff changeset	1318 VISIT(st, expr, e->v.Starred.value);
e16c8e5c5ca4 Merged revisions 55225-55227,55229-55269 via svnmerge from Guido van Rossum <guido@python.org> parents: 41508 diff changeset	1319 break;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1320 case Name_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1321 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	1322 e->v.Name.ctx == Load ? USE : DEF_LOCAL))
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1323 return 0;
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1324 /* Special-case super: it counts as a use of __class__ */
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1325 if (e->v.Name.ctx == Load &&
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1326 st->st_cur->ste_type == FunctionBlock &&
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1327 !PyUnicode_CompareWithASCIIString(e->v.Name.id, "super")) {
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1328 if (!GET_IDENTIFIER(__class__) \|\|
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1329 !symtable_add_def(st, __class__, USE))
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1330 return 0;
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 42045 diff changeset	1331 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1332 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1333 /* 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	1334 case List_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1335 VISIT_SEQ(st, expr, e->v.List.elts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1336 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1337 case Tuple_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1338 VISIT_SEQ(st, expr, e->v.Tuple.elts);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1339 break;
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_implicit_arg(struct symtable *st, int pos)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1346 {
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1347 PyObject *id = PyUnicode_FromFormat(".%d", pos);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1348 if (id == NULL)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1349 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1350 if (!symtable_add_def(st, id, DEF_PARAM)) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1351 Py_DECREF(id);
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 Py_DECREF(id);
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
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1359 symtable_visit_params(struct symtable st, asdl_seq args)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1360 {
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	1361 int i;
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1362
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1363 if (!args)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1364 return -1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1365
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1366 for (i = 0; i < asdl_seq_LEN(args); i++) {
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1367 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1368 if (!symtable_add_def(st, arg->arg, DEF_PARAM))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1369 return 0;
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
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1372 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1373 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1374
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1375 static int
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1376 symtable_visit_argannotations(struct symtable st, asdl_seq args)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1377 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1378 int i;
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1379
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1380 if (!args)
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1381 return -1;
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1382
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1383 for (i = 0; i < asdl_seq_LEN(args); i++) {
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1384 arg_ty arg = (arg_ty)asdl_seq_GET(args, i);
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1385 if (arg->annotation)
9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1386 VISIT(st, expr, arg->annotation);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1387 }
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1388
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1389 return 1;
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1390 }
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1391
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1392 static int
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1393 symtable_visit_annotations(struct symtable *st, stmt_ty s)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1394 {
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1395 arguments_ty a = s->v.FunctionDef.args;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1396
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1397 if (a->args && !symtable_visit_argannotations(st, a->args))
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1398 return 0;
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1399 if (a->varargannotation)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1400 VISIT(st, expr, a->varargannotation);
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1401 if (a->kwargannotation)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1402 VISIT(st, expr, a->kwargannotation);
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1403 if (a->kwonlyargs && !symtable_visit_argannotations(st, a->kwonlyargs))
40529 54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1404 return 0;
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1405 if (s->v.FunctionDef.returns)
54cd47788811 PEP 3107 - Function Annotations thanks to Tony Lownds Neal Norwitz <nnorwitz@gmail.com> parents: 40215 diff changeset	1406 VISIT(st, expr, s->v.FunctionDef.returns);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1407 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1408 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1409
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1410 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1411 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	1412 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1413 /* skip default arguments inside function block
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1414 XXX should ast be different?
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1415 */
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1416 if (a->args && !symtable_visit_params(st, a->args))
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1417 return 0;
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1418 if (a->kwonlyargs && !symtable_visit_params(st, a->kwonlyargs))
40215 1cce0526d9b0 Jiwon Seo's PEP 3102 implementation. Guido van Rossum <guido@python.org> parents: 39783 diff changeset	1419 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1420 if (a->vararg) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1421 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	1422 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1423 st->st_cur->ste_varargs = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1424 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1425 if (a->kwarg) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1426 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	1427 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1428 st->st_cur->ste_varkeywords = 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1429 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1430 return 1;
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_excepthandler(struct symtable *st, excepthandler_ty eh)
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 if (eh->type)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1438 VISIT(st, expr, eh->type);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1439 if (eh->name)
40588 4bab65fcca8e Some more changes related to the new except syntax and semantics, Guido van Rossum <guido@python.org> parents: 40529 diff changeset	1440 if (!symtable_add_def(st, eh->name, DEF_LOCAL))
4bab65fcca8e Some more changes related to the new except syntax and semantics, Guido van Rossum <guido@python.org> parents: 40529 diff changeset	1441 return 0;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1442 VISIT_SEQ(st, stmt, eh->body);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1443 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1444 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1445
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 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1448 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	1449 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1450 /* 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	1451 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	1452 dotted package name (e.g. spam.eggs)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1453 */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1454 PyObject *store_name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1455 PyObject *name = (a->asname == NULL) ? a->name : a->asname;
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1456 const Py_UNICODE *base = PyUnicode_AS_UNICODE(name);
cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1457 Py_UNICODE *dot = Py_UNICODE_strchr(base, '.');
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1458 if (dot) {
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1459 store_name = PyUnicode_FromUnicode(base, dot - base);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1460 if (!store_name)
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1461 return 0;
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1462 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1463 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1464 store_name = name;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1465 Py_INCREF(store_name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1466 }
42013 cd125fe83051 Make identifiers str (not str8) objects throughout. Martin v. Löwis <martin@v.loewis.de> parents: 41824 diff changeset	1467 if (PyUnicode_CompareWithASCIIString(name, "*")) {
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1468 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	1469 Py_DECREF(store_name);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1470 return r;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1471 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1472 else {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1473 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	1474 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	1475 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	1476 Py_DECREF(store_name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1477 return 0;
35939 79374eb6db51 Fix a few more ref leaks. Backport candidate Neal Norwitz <nnorwitz@gmail.com> parents: 35893 diff changeset	1478 }
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1479 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1480 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	1481 Py_DECREF(store_name);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1482 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1483 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1484 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1485
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1486
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1487 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1488 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	1489 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1490 VISIT(st, expr, lc->target);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1491 VISIT(st, expr, lc->iter);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1492 VISIT_SEQ(st, expr, lc->ifs);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1493 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1494 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1495
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1496
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1497 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1498 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	1499 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1500 VISIT(st, expr, k->value);
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1501 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1502 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1503
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1504
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1505 static int
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1506 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	1507 {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1508 switch (s->kind) {
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1509 case Slice_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1510 if (s->v.Slice.lower)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1511 VISIT(st, expr, s->v.Slice.lower)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1512 if (s->v.Slice.upper)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1513 VISIT(st, expr, s->v.Slice.upper)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1514 if (s->v.Slice.step)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1515 VISIT(st, expr, s->v.Slice.step)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1516 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1517 case ExtSlice_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1518 VISIT_SEQ(st, slice, s->v.ExtSlice.dims)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1519 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1520 case Index_kind:
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1521 VISIT(st, expr, s->v.Index.value)
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1522 break;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1523 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1524 return 1;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1525 }
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1526
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1527 static int
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1528 symtable_handle_comprehension(struct symtable *st, expr_ty e,
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1529 identifier scope_name, asdl_seq *generators,
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1530 expr_ty elt, expr_ty value)
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1531 {
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1532 int is_generator = (e->kind == GeneratorExp_kind);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1533 int needs_tmp = !is_generator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1534 comprehension_ty outermost = ((comprehension_ty)
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1535 asdl_seq_GET(generators, 0));
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1536 /* Outermost iterator is evaluated in current scope */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1537 VISIT(st, expr, outermost->iter);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1538 /* Create comprehension scope for the rest */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1539 if (!scope_name \|\|
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1540 !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	1541 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1542 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1543 st->st_cur->ste_generator = is_generator;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1544 /* Outermost iter is received as an argument */
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1545 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	1546 symtable_exit_block(st, (void *)e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1547 return 0;
1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1548 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1549 /* Allocate temporary name if needed */
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1550 if (needs_tmp && !symtable_new_tmpname(st)) {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1551 symtable_exit_block(st, (void *)e);
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1552 return 0;
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1553 }
35863 79f2ce320192 Fix a lot of memory and ref leaks in error paths. Neal Norwitz <nnorwitz@gmail.com> parents: 35793 diff changeset	1554 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	1555 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	1556 VISIT_SEQ_TAIL_IN_BLOCK(st, comprehension,
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1557 generators, 1, (void*)e);
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1558 if (value)
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1559 VISIT_IN_BLOCK(st, expr, value, (void*)e);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1560 VISIT_IN_BLOCK(st, expr, elt, (void*)e);
39610 3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change, Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1561 return symtable_exit_block(st, (void *)e);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32121 diff changeset	1562 }
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1563
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1564 static int
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1565 symtable_visit_genexp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1566 {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1567 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(genexpr),
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1568 e->v.GeneratorExp.generators,
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1569 e->v.GeneratorExp.elt, NULL);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1570 }
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1571
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1572 static int
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1573 symtable_visit_listcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1574 {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1575 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(listcomp),
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1576 e->v.ListComp.generators,
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1577 e->v.ListComp.elt, NULL);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1578 }
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1579
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1580 static int
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1581 symtable_visit_setcomp(struct symtable *st, expr_ty e)
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1582 {
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1583 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(setcomp),
060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1584 e->v.SetComp.generators,
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1585 e->v.SetComp.elt, NULL);
41464 060c79f6d919 Hide list comp variables and support set comprehensions Nick Coghlan <ncoghlan@gmail.com> parents: 41226 diff changeset	1586 }
42193 090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1587
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1588 static int
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1589 symtable_visit_dictcomp(struct symtable *st, expr_ty e)
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1590 {
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1591 return symtable_handle_comprehension(st, e, GET_IDENTIFIER(dictcomp),
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1592 e->v.DictComp.generators,
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1593 e->v.DictComp.key,
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1594 e->v.DictComp.value);
090588a17490 Merged revisions 56154-56264 via svnmerge from Guido van Rossum <guido@python.org> parents: 42084 diff changeset	1595 }

Mercurial > cpython-lru_cache-weakref

annotate Python/symtable.c @ 42291:3772103200ec