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

annotate Python/future.c @ 62570:32651ee779ed

Merged revisions 81380 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r81380 | brett.cannon | 2010-05-20 13:37:55 -0500 (Thu, 20 May 2010) | 8 lines Turned out that if you used explicit relative import syntax (e.g. from .os import sep) and it failed, import would still try the implicit relative import semantics of an absolute import (from os import sep). That's not right, so when level is negative, only do explicit relative import semantics. Fixes issue #7902. Thanks to Meador Inge for the patch. ........

author	Benjamin Peterson <benjamin@python.org>
date	Sun, 27 Jun 2010 22:37:28 +0000
parents	cab14be0ada1
children	861c35cef7aa

rev	line source
16799 08d937107fe6 Improved __future__ parser; still more to do 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: 34539 diff changeset	2 #include "Python-ast.h"
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3 #include "node.h"
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	4 #include "token.h"
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	5 #include "graminit.h"
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	6 #include "code.h"
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	7 #include "compile.h"
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	8 #include "symtable.h"
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	9
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	10 #define UNDEFINED_FUTURE_FEATURE "future feature %.100s is not defined"
49633 bd0e9a9cd283 Merged revisions 67028,67040,67044,67046,67052,67065,67070,67077,67082 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48660 diff changeset	11 #define ERR_LATE_FUTURE \
bd0e9a9cd283 Merged revisions 67028,67040,67044,67046,67052,67065,67070,67077,67082 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48660 diff changeset	12 "from __future__ imports must occur at the beginning of the file"
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	13
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	14 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	15 future_check_features(PyFutureFeatures ff, stmt_ty s, const char filename)
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	16 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	17 int i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	18 asdl_seq *names;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	19
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	20 assert(s->kind == ImportFrom_kind);
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	21
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	22 names = s->v.ImportFrom.names;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	23 for (i = 0; i < asdl_seq_LEN(names); i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	24 alias_ty name = (alias_ty)asdl_seq_GET(names, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	25 const char *feature = _PyUnicode_AsString(name->name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	26 if (!feature)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	27 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	28 if (strcmp(feature, FUTURE_NESTED_SCOPES) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	29 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	30 } else if (strcmp(feature, FUTURE_GENERATORS) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	31 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	32 } else if (strcmp(feature, FUTURE_DIVISION) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	33 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	34 } else if (strcmp(feature, FUTURE_ABSOLUTE_IMPORT) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	35 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	36 } else if (strcmp(feature, FUTURE_WITH_STATEMENT) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	37 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	38 } else if (strcmp(feature, FUTURE_PRINT_FUNCTION) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	39 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	40 } else if (strcmp(feature, FUTURE_UNICODE_LITERALS) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	41 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	42 } else if (strcmp(feature, FUTURE_BARRY_AS_BDFL) == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	43 ff->ff_features \|= CO_FUTURE_BARRY_AS_BDFL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	44 } else if (strcmp(feature, "braces") == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	45 PyErr_SetString(PyExc_SyntaxError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	46 "not a chance");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	47 PyErr_SyntaxLocation(filename, s->lineno);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	48 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	49 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	50 PyErr_Format(PyExc_SyntaxError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	51 UNDEFINED_FUTURE_FEATURE, feature);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	52 PyErr_SyntaxLocation(filename, s->lineno);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	53 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	54 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	55 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	56 return 1;
16823 acbe74f3a786 Presumed correct compiler pass for future statements Jeremy Hylton <jeremy@alum.mit.edu> parents: 16799 diff changeset	57 }
acbe74f3a786 Presumed correct compiler pass for future statements Jeremy Hylton <jeremy@alum.mit.edu> parents: 16799 diff changeset	58
35862 6867995a18a7 Prevent name pollution by making lots of internal functions static. Neal Norwitz <nnorwitz@gmail.com> parents: 35742 diff changeset	59 static int
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	60 future_parse(PyFutureFeatures ff, mod_ty mod, const char filename)
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	61 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	62 int i, found_docstring = 0, done = 0, prev_line = 0;
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	63
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	64 static PyObject *future;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	65 if (!future) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	66 future = PyUnicode_InternFromString("__future__");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	67 if (!future)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	68 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	69 }
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	70
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	71 if (!(mod->kind == Module_kind \|\| mod->kind == Interactive_kind))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	72 return 1;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	73
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	74 /* A subsequent pass will detect future imports that don't
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	75 appear at the beginning of the file. There's one case,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	76 however, that is easier to handle here: A series of imports
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	77 joined by semi-colons, where the first import is a future
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	78 statement but some subsequent import has the future form
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	79 but is preceded by a regular import.
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	80 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	81
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	82
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	83 for (i = 0; i < asdl_seq_LEN(mod->v.Module.body); i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	84 stmt_ty s = (stmt_ty)asdl_seq_GET(mod->v.Module.body, i);
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	85
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	86 if (done && s->lineno > prev_line)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	87 return 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	88 prev_line = s->lineno;
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	89
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	90 /* The tests below will return from this function unless it is
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	91 still possible to find a future statement. The only things
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	92 that can precede a future statement are another future
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	93 statement and a doc string.
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	94 */
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	95
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	96 if (s->kind == ImportFrom_kind) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	97 if (s->v.ImportFrom.module == future) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	98 if (done) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	99 PyErr_SetString(PyExc_SyntaxError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	100 ERR_LATE_FUTURE);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	101 PyErr_SyntaxLocation(filename,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	102 s->lineno);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	103 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	104 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	105 if (!future_check_features(ff, s, filename))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	106 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	107 ff->ff_lineno = s->lineno;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	108 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	109 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	110 done = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	111 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	112 else if (s->kind == Expr_kind && !found_docstring) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	113 expr_ty e = s->v.Expr.value;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	114 if (e->kind != Str_kind)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	115 done = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	116 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	117 found_docstring = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	118 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	119 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	120 done = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	121 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	122 return 1;
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	123 }
08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	124
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	125
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	126 PyFutureFeatures *
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 34539 diff changeset	127 PyFuture_FromAST(mod_ty mod, const char *filename)
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	128 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	129 PyFutureFeatures *ff;
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	130
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	131 ff = (PyFutureFeatures *)PyObject_Malloc(sizeof(PyFutureFeatures));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	132 if (ff == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	133 PyErr_NoMemory();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	134 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	135 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	136 ff->ff_features = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	137 ff->ff_lineno = -1;
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	138
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	139 if (!future_parse(ff, mod, filename)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	140 PyObject_Free(ff);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	141 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	142 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 52641 diff changeset	143 return ff;
16799 08d937107fe6 Improved __future__ parser; still more to do Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	144 }

Mercurial > cpython-lru_cache-weakref

annotate Python/future.c @ 62570:32651ee779ed