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Victor Stinner
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Oct 8, 2010
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,173 @@ | ||
Index: Python/ceval.c | ||
=================================================================== | ||
--- Python/ceval.c (révision 84785) | ||
+++ Python/ceval.c (copie de travail) | ||
@@ -119,6 +119,7 @@ | ||
#define CALL_FLAG_VAR 1 | ||
#define CALL_FLAG_KW 2 | ||
|
||
+static PyObject *import_str = NULL; | ||
#ifdef LLTRACE | ||
static int lltrace; | ||
static int prtrace(PyObject *, char *); | ||
@@ -2054,7 +2055,10 @@ | ||
if (x == NULL) { | ||
x = PyDict_GetItem(f->f_globals, w); | ||
if (x == NULL) { | ||
- x = PyDict_GetItem(f->f_builtins, w); | ||
+ if (PyDict_CheckExact(f->f_builtins)) | ||
+ x = PyDict_GetItem(f->f_builtins, w); | ||
+ else | ||
+ x = PyObject_GetItem(f->f_builtins, w); | ||
if (x == NULL) { | ||
format_exc_check_arg( | ||
PyExc_NameError, | ||
@@ -2069,57 +2073,67 @@ | ||
|
||
case LOAD_GLOBAL: | ||
w = GETITEM(names, oparg); | ||
- if (PyString_CheckExact(w)) { | ||
- /* Inline the PyDict_GetItem() calls. | ||
- WARNING: this is an extreme speed hack. | ||
- Do not try this at home. */ | ||
- long hash = ((PyStringObject *)w)->ob_shash; | ||
- if (hash != -1) { | ||
- PyDictObject *d; | ||
- PyDictEntry *e; | ||
- d = (PyDictObject *)(f->f_globals); | ||
- e = d->ma_lookup(d, w, hash); | ||
- if (e == NULL) { | ||
- x = NULL; | ||
- break; | ||
+ if (PyDict_CheckExact(f->f_builtins)) { | ||
+ if (PyString_CheckExact(w)) { | ||
+ /* Inline the PyDict_GetItem() calls. | ||
+ WARNING: this is an extreme speed hack. | ||
+ Do not try this at home. */ | ||
+ long hash = ((PyStringObject *)w)->ob_shash; | ||
+ if (hash != -1) { | ||
+ PyDictObject *d; | ||
+ PyDictEntry *e; | ||
+ d = (PyDictObject *)(f->f_globals); | ||
+ e = d->ma_lookup(d, w, hash); | ||
+ if (e == NULL) { | ||
+ x = NULL; | ||
+ break; | ||
+ } | ||
+ x = e->me_value; | ||
+ if (x != NULL) { | ||
+ Py_INCREF(x); | ||
+ PUSH(x); | ||
+ continue; | ||
+ } | ||
+ d = (PyDictObject *)(f->f_builtins); | ||
+ e = d->ma_lookup(d, w, hash); | ||
+ if (e == NULL) { | ||
+ x = NULL; | ||
+ break; | ||
+ } | ||
+ x = e->me_value; | ||
+ if (x != NULL) { | ||
+ Py_INCREF(x); | ||
+ PUSH(x); | ||
+ continue; | ||
+ } | ||
+ goto load_global_error; | ||
} | ||
- x = e->me_value; | ||
- if (x != NULL) { | ||
- Py_INCREF(x); | ||
- PUSH(x); | ||
- continue; | ||
- } | ||
- d = (PyDictObject *)(f->f_builtins); | ||
- e = d->ma_lookup(d, w, hash); | ||
- if (e == NULL) { | ||
- x = NULL; | ||
- break; | ||
- } | ||
- x = e->me_value; | ||
- if (x != NULL) { | ||
- Py_INCREF(x); | ||
- PUSH(x); | ||
- continue; | ||
- } | ||
- goto load_global_error; | ||
} | ||
- } | ||
- /* This is the un-inlined version of the code above */ | ||
- x = PyDict_GetItem(f->f_globals, w); | ||
- if (x == NULL) { | ||
- x = PyDict_GetItem(f->f_builtins, w); | ||
+ /* This is the un-inlined version of the code above */ | ||
+ x = PyDict_GetItem(f->f_globals, w); | ||
if (x == NULL) { | ||
- load_global_error: | ||
- format_exc_check_arg( | ||
- PyExc_NameError, | ||
- GLOBAL_NAME_ERROR_MSG, w); | ||
- break; | ||
+ x = PyDict_GetItem(f->f_builtins, w); | ||
+ if (x == NULL) | ||
+ goto load_global_error; | ||
} | ||
+ } else { | ||
+ x = PyDict_GetItem(f->f_globals, w); | ||
+ if (x == NULL) { | ||
+ x = PyObject_GetItem(f->f_builtins, w); | ||
+ if (x == NULL) | ||
+ goto load_global_error; | ||
+ } | ||
} | ||
Py_INCREF(x); | ||
PUSH(x); | ||
continue; | ||
|
||
+load_global_error: | ||
+ format_exc_check_arg( | ||
+ PyExc_NameError, | ||
+ GLOBAL_NAME_ERROR_MSG, w); | ||
+ break; | ||
+ | ||
case DELETE_FAST: | ||
x = GETLOCAL(oparg); | ||
if (x != NULL) { | ||
@@ -2295,7 +2309,16 @@ | ||
|
||
case IMPORT_NAME: | ||
w = GETITEM(names, oparg); | ||
- x = PyDict_GetItemString(f->f_builtins, "__import__"); | ||
+ if (PyDict_CheckExact(f->f_builtins)) | ||
+ x = PyDict_GetItemString(f->f_builtins, "__import__"); | ||
+ else { | ||
+ if (import_str == NULL) { | ||
+ import_str = PyString_FromString("__import__"); | ||
+ if (import_str == NULL) | ||
+ break; | ||
+ } | ||
+ x = PyObject_GetItem(f->f_builtins, import_str); | ||
+ } | ||
if (x == NULL) { | ||
PyErr_SetString(PyExc_ImportError, | ||
"__import__ not found"); | ||
Index: Objects/frameobject.c | ||
=================================================================== | ||
--- Objects/frameobject.c (révision 84785) | ||
+++ Objects/frameobject.c (copie de travail) | ||
@@ -641,8 +641,6 @@ | ||
builtins = PyModule_GetDict(builtins); | ||
assert(!builtins || PyDict_Check(builtins)); | ||
} | ||
- else if (!PyDict_Check(builtins)) | ||
- builtins = NULL; | ||
} | ||
if (builtins == NULL) { | ||
/* No builtins! Make up a minimal one | ||
@@ -661,7 +659,6 @@ | ||
/* If we share the globals, we share the builtins. | ||
Save a lookup and a call. */ | ||
builtins = back->f_builtins; | ||
- assert(builtins != NULL && PyDict_Check(builtins)); | ||
Py_INCREF(builtins); | ||
} | ||
if (code->co_zombieframe != NULL) { |
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