diff options
Diffstat (limited to 'Objects/moduleobject.c')
-rw-r--r-- | Objects/moduleobject.c | 642 |
1 files changed, 321 insertions, 321 deletions
diff --git a/Objects/moduleobject.c b/Objects/moduleobject.c index feac861..9ef7339 100644 --- a/Objects/moduleobject.c +++ b/Objects/moduleobject.c @@ -7,53 +7,53 @@ static Py_ssize_t max_module_number; typedef struct { - PyObject_HEAD - PyObject *md_dict; - struct PyModuleDef *md_def; - void *md_state; + PyObject_HEAD + PyObject *md_dict; + struct PyModuleDef *md_def; + void *md_state; } PyModuleObject; static PyMemberDef module_members[] = { - {"__dict__", T_OBJECT, offsetof(PyModuleObject, md_dict), READONLY}, - {0} + {"__dict__", T_OBJECT, offsetof(PyModuleObject, md_dict), READONLY}, + {0} }; static PyTypeObject moduledef_type = { - PyVarObject_HEAD_INIT(&PyType_Type, 0) - "moduledef", /* tp_name */ - sizeof(struct PyModuleDef), /* tp_size */ - 0, /* tp_itemsize */ + PyVarObject_HEAD_INIT(&PyType_Type, 0) + "moduledef", /* tp_name */ + sizeof(struct PyModuleDef), /* tp_size */ + 0, /* tp_itemsize */ }; PyObject * PyModule_New(const char *name) { - PyModuleObject *m; - PyObject *nameobj; - m = PyObject_GC_New(PyModuleObject, &PyModule_Type); - if (m == NULL) - return NULL; - m->md_def = NULL; - m->md_state = NULL; - nameobj = PyUnicode_FromString(name); - m->md_dict = PyDict_New(); - if (m->md_dict == NULL || nameobj == NULL) - goto fail; - if (PyDict_SetItemString(m->md_dict, "__name__", nameobj) != 0) - goto fail; - if (PyDict_SetItemString(m->md_dict, "__doc__", Py_None) != 0) - goto fail; - if (PyDict_SetItemString(m->md_dict, "__package__", Py_None) != 0) - goto fail; - Py_DECREF(nameobj); - PyObject_GC_Track(m); - return (PyObject *)m; + PyModuleObject *m; + PyObject *nameobj; + m = PyObject_GC_New(PyModuleObject, &PyModule_Type); + if (m == NULL) + return NULL; + m->md_def = NULL; + m->md_state = NULL; + nameobj = PyUnicode_FromString(name); + m->md_dict = PyDict_New(); + if (m->md_dict == NULL || nameobj == NULL) + goto fail; + if (PyDict_SetItemString(m->md_dict, "__name__", nameobj) != 0) + goto fail; + if (PyDict_SetItemString(m->md_dict, "__doc__", Py_None) != 0) + goto fail; + if (PyDict_SetItemString(m->md_dict, "__package__", Py_None) != 0) + goto fail; + Py_DECREF(nameobj); + PyObject_GC_Track(m); + return (PyObject *)m; fail: - Py_XDECREF(nameobj); - Py_DECREF(m); - return NULL; + Py_XDECREF(nameobj); + Py_DECREF(m); + return NULL; } static char api_version_warning[] = @@ -63,231 +63,231 @@ static char api_version_warning[] = PyObject * PyModule_Create2(struct PyModuleDef* module, int module_api_version) { - PyObject *d, *v, *n; - PyMethodDef *ml; - const char* name; - PyModuleObject *m; - if (!Py_IsInitialized()) - Py_FatalError("Interpreter not initialized (version mismatch?)"); - if (PyType_Ready(&moduledef_type) < 0) - return NULL; - if (module->m_base.m_index == 0) { - max_module_number++; - Py_REFCNT(module) = 1; - Py_TYPE(module) = &moduledef_type; - module->m_base.m_index = max_module_number; - } - name = module->m_name; - if (module_api_version != PYTHON_API_VERSION) { - char message[512]; - PyOS_snprintf(message, sizeof(message), - api_version_warning, name, - PYTHON_API_VERSION, name, - module_api_version); - if (PyErr_WarnEx(PyExc_RuntimeWarning, message, 1)) - return NULL; - } - /* Make sure name is fully qualified. - - This is a bit of a hack: when the shared library is loaded, - the module name is "package.module", but the module calls - PyModule_Create*() with just "module" for the name. The shared - library loader squirrels away the true name of the module in - _Py_PackageContext, and PyModule_Create*() will substitute this - (if the name actually matches). - */ - if (_Py_PackageContext != NULL) { - char *p = strrchr(_Py_PackageContext, '.'); - if (p != NULL && strcmp(module->m_name, p+1) == 0) { - name = _Py_PackageContext; - _Py_PackageContext = NULL; - } - } - if ((m = (PyModuleObject*)PyModule_New(name)) == NULL) - return NULL; - - if (module->m_size > 0) { - m->md_state = PyMem_MALLOC(module->m_size); - if (!m->md_state) { - PyErr_NoMemory(); - Py_DECREF(m); - return NULL; - } - memset(m->md_state, 0, module->m_size); - } - - d = PyModule_GetDict((PyObject*)m); - if (module->m_methods != NULL) { - n = PyUnicode_FromString(name); - if (n == NULL) - return NULL; - for (ml = module->m_methods; ml->ml_name != NULL; ml++) { - if ((ml->ml_flags & METH_CLASS) || - (ml->ml_flags & METH_STATIC)) { - PyErr_SetString(PyExc_ValueError, - "module functions cannot set" - " METH_CLASS or METH_STATIC"); - Py_DECREF(n); - return NULL; - } - v = PyCFunction_NewEx(ml, (PyObject*)m, n); - if (v == NULL) { - Py_DECREF(n); - return NULL; - } - if (PyDict_SetItemString(d, ml->ml_name, v) != 0) { - Py_DECREF(v); - Py_DECREF(n); - return NULL; - } - Py_DECREF(v); - } - Py_DECREF(n); - } - if (module->m_doc != NULL) { - v = PyUnicode_FromString(module->m_doc); - if (v == NULL || PyDict_SetItemString(d, "__doc__", v) != 0) { - Py_XDECREF(v); - return NULL; - } - Py_DECREF(v); - } - m->md_def = module; - return (PyObject*)m; + PyObject *d, *v, *n; + PyMethodDef *ml; + const char* name; + PyModuleObject *m; + if (!Py_IsInitialized()) + Py_FatalError("Interpreter not initialized (version mismatch?)"); + if (PyType_Ready(&moduledef_type) < 0) + return NULL; + if (module->m_base.m_index == 0) { + max_module_number++; + Py_REFCNT(module) = 1; + Py_TYPE(module) = &moduledef_type; + module->m_base.m_index = max_module_number; + } + name = module->m_name; + if (module_api_version != PYTHON_API_VERSION) { + char message[512]; + PyOS_snprintf(message, sizeof(message), + api_version_warning, name, + PYTHON_API_VERSION, name, + module_api_version); + if (PyErr_WarnEx(PyExc_RuntimeWarning, message, 1)) + return NULL; + } + /* Make sure name is fully qualified. + + This is a bit of a hack: when the shared library is loaded, + the module name is "package.module", but the module calls + PyModule_Create*() with just "module" for the name. The shared + library loader squirrels away the true name of the module in + _Py_PackageContext, and PyModule_Create*() will substitute this + (if the name actually matches). + */ + if (_Py_PackageContext != NULL) { + char *p = strrchr(_Py_PackageContext, '.'); + if (p != NULL && strcmp(module->m_name, p+1) == 0) { + name = _Py_PackageContext; + _Py_PackageContext = NULL; + } + } + if ((m = (PyModuleObject*)PyModule_New(name)) == NULL) + return NULL; + + if (module->m_size > 0) { + m->md_state = PyMem_MALLOC(module->m_size); + if (!m->md_state) { + PyErr_NoMemory(); + Py_DECREF(m); + return NULL; + } + memset(m->md_state, 0, module->m_size); + } + + d = PyModule_GetDict((PyObject*)m); + if (module->m_methods != NULL) { + n = PyUnicode_FromString(name); + if (n == NULL) + return NULL; + for (ml = module->m_methods; ml->ml_name != NULL; ml++) { + if ((ml->ml_flags & METH_CLASS) || + (ml->ml_flags & METH_STATIC)) { + PyErr_SetString(PyExc_ValueError, + "module functions cannot set" + " METH_CLASS or METH_STATIC"); + Py_DECREF(n); + return NULL; + } + v = PyCFunction_NewEx(ml, (PyObject*)m, n); + if (v == NULL) { + Py_DECREF(n); + return NULL; + } + if (PyDict_SetItemString(d, ml->ml_name, v) != 0) { + Py_DECREF(v); + Py_DECREF(n); + return NULL; + } + Py_DECREF(v); + } + Py_DECREF(n); + } + if (module->m_doc != NULL) { + v = PyUnicode_FromString(module->m_doc); + if (v == NULL || PyDict_SetItemString(d, "__doc__", v) != 0) { + Py_XDECREF(v); + return NULL; + } + Py_DECREF(v); + } + m->md_def = module; + return (PyObject*)m; } PyObject * PyModule_GetDict(PyObject *m) { - PyObject *d; - if (!PyModule_Check(m)) { - PyErr_BadInternalCall(); - return NULL; - } - d = ((PyModuleObject *)m) -> md_dict; - if (d == NULL) - ((PyModuleObject *)m) -> md_dict = d = PyDict_New(); - return d; + PyObject *d; + if (!PyModule_Check(m)) { + PyErr_BadInternalCall(); + return NULL; + } + d = ((PyModuleObject *)m) -> md_dict; + if (d == NULL) + ((PyModuleObject *)m) -> md_dict = d = PyDict_New(); + return d; } const char * PyModule_GetName(PyObject *m) { - PyObject *d; - PyObject *nameobj; - if (!PyModule_Check(m)) { - PyErr_BadArgument(); - return NULL; - } - d = ((PyModuleObject *)m)->md_dict; - if (d == NULL || - (nameobj = PyDict_GetItemString(d, "__name__")) == NULL || - !PyUnicode_Check(nameobj)) - { - PyErr_SetString(PyExc_SystemError, "nameless module"); - return NULL; - } - return _PyUnicode_AsString(nameobj); + PyObject *d; + PyObject *nameobj; + if (!PyModule_Check(m)) { + PyErr_BadArgument(); + return NULL; + } + d = ((PyModuleObject *)m)->md_dict; + if (d == NULL || + (nameobj = PyDict_GetItemString(d, "__name__")) == NULL || + !PyUnicode_Check(nameobj)) + { + PyErr_SetString(PyExc_SystemError, "nameless module"); + return NULL; + } + return _PyUnicode_AsString(nameobj); } static PyObject* module_getfilename(PyObject *m) { - PyObject *d; - PyObject *fileobj; - if (!PyModule_Check(m)) { - PyErr_BadArgument(); - return NULL; - } - d = ((PyModuleObject *)m)->md_dict; - if (d == NULL || - (fileobj = PyDict_GetItemString(d, "__file__")) == NULL || - !PyUnicode_Check(fileobj)) - { - PyErr_SetString(PyExc_SystemError, "module filename missing"); - return NULL; - } - return fileobj; + PyObject *d; + PyObject *fileobj; + if (!PyModule_Check(m)) { + PyErr_BadArgument(); + return NULL; + } + d = ((PyModuleObject *)m)->md_dict; + if (d == NULL || + (fileobj = PyDict_GetItemString(d, "__file__")) == NULL || + !PyUnicode_Check(fileobj)) + { + PyErr_SetString(PyExc_SystemError, "module filename missing"); + return NULL; + } + return fileobj; } const char * PyModule_GetFilename(PyObject *m) { - PyObject *fileobj; - fileobj = module_getfilename(m); - if (fileobj == NULL) - return NULL; - return _PyUnicode_AsString(fileobj); + PyObject *fileobj; + fileobj = module_getfilename(m); + if (fileobj == NULL) + return NULL; + return _PyUnicode_AsString(fileobj); } PyModuleDef* PyModule_GetDef(PyObject* m) { - if (!PyModule_Check(m)) { - PyErr_BadArgument(); - return NULL; - } - return ((PyModuleObject *)m)->md_def; + if (!PyModule_Check(m)) { + PyErr_BadArgument(); + return NULL; + } + return ((PyModuleObject *)m)->md_def; } void* PyModule_GetState(PyObject* m) { - if (!PyModule_Check(m)) { - PyErr_BadArgument(); - return NULL; - } - return ((PyModuleObject *)m)->md_state; + if (!PyModule_Check(m)) { + PyErr_BadArgument(); + return NULL; + } + return ((PyModuleObject *)m)->md_state; } void _PyModule_Clear(PyObject *m) { - /* To make the execution order of destructors for global - objects a bit more predictable, we first zap all objects - whose name starts with a single underscore, before we clear - the entire dictionary. We zap them by replacing them with - None, rather than deleting them from the dictionary, to - avoid rehashing the dictionary (to some extent). */ - - Py_ssize_t pos; - PyObject *key, *value; - PyObject *d; - - d = ((PyModuleObject *)m)->md_dict; - if (d == NULL) - return; - - /* First, clear only names starting with a single underscore */ - pos = 0; - while (PyDict_Next(d, &pos, &key, &value)) { - if (value != Py_None && PyUnicode_Check(key)) { - const char *s = _PyUnicode_AsString(key); - if (s[0] == '_' && s[1] != '_') { - if (Py_VerboseFlag > 1) - PySys_WriteStderr("# clear[1] %s\n", s); - PyDict_SetItem(d, key, Py_None); - } - } - } - - /* Next, clear all names except for __builtins__ */ - pos = 0; - while (PyDict_Next(d, &pos, &key, &value)) { - if (value != Py_None && PyUnicode_Check(key)) { - const char *s = _PyUnicode_AsString(key); - if (s[0] != '_' || strcmp(s, "__builtins__") != 0) { - if (Py_VerboseFlag > 1) - PySys_WriteStderr("# clear[2] %s\n", s); - PyDict_SetItem(d, key, Py_None); - } - } - } - - /* Note: we leave __builtins__ in place, so that destructors - of non-global objects defined in this module can still use - builtins, in particularly 'None'. */ + /* To make the execution order of destructors for global + objects a bit more predictable, we first zap all objects + whose name starts with a single underscore, before we clear + the entire dictionary. We zap them by replacing them with + None, rather than deleting them from the dictionary, to + avoid rehashing the dictionary (to some extent). */ + + Py_ssize_t pos; + PyObject *key, *value; + PyObject *d; + + d = ((PyModuleObject *)m)->md_dict; + if (d == NULL) + return; + + /* First, clear only names starting with a single underscore */ + pos = 0; + while (PyDict_Next(d, &pos, &key, &value)) { + if (value != Py_None && PyUnicode_Check(key)) { + const char *s = _PyUnicode_AsString(key); + if (s[0] == '_' && s[1] != '_') { + if (Py_VerboseFlag > 1) + PySys_WriteStderr("# clear[1] %s\n", s); + PyDict_SetItem(d, key, Py_None); + } + } + } + + /* Next, clear all names except for __builtins__ */ + pos = 0; + while (PyDict_Next(d, &pos, &key, &value)) { + if (value != Py_None && PyUnicode_Check(key)) { + const char *s = _PyUnicode_AsString(key); + if (s[0] != '_' || strcmp(s, "__builtins__") != 0) { + if (Py_VerboseFlag > 1) + PySys_WriteStderr("# clear[2] %s\n", s); + PyDict_SetItem(d, key, Py_None); + } + } + } + + /* Note: we leave __builtins__ in place, so that destructors + of non-global objects defined in this module can still use + builtins, in particularly 'None'. */ } @@ -296,86 +296,86 @@ _PyModule_Clear(PyObject *m) static int module_init(PyModuleObject *m, PyObject *args, PyObject *kwds) { - static char *kwlist[] = {"name", "doc", NULL}; - PyObject *dict, *name = Py_None, *doc = Py_None; - if (!PyArg_ParseTupleAndKeywords(args, kwds, "U|O:module.__init__", - kwlist, &name, &doc)) - return -1; - dict = m->md_dict; - if (dict == NULL) { - dict = PyDict_New(); - if (dict == NULL) - return -1; - m->md_dict = dict; - } - if (PyDict_SetItemString(dict, "__name__", name) < 0) - return -1; - if (PyDict_SetItemString(dict, "__doc__", doc) < 0) - return -1; - return 0; + static char *kwlist[] = {"name", "doc", NULL}; + PyObject *dict, *name = Py_None, *doc = Py_None; + if (!PyArg_ParseTupleAndKeywords(args, kwds, "U|O:module.__init__", + kwlist, &name, &doc)) + return -1; + dict = m->md_dict; + if (dict == NULL) { + dict = PyDict_New(); + if (dict == NULL) + return -1; + m->md_dict = dict; + } + if (PyDict_SetItemString(dict, "__name__", name) < 0) + return -1; + if (PyDict_SetItemString(dict, "__doc__", doc) < 0) + return -1; + return 0; } static void module_dealloc(PyModuleObject *m) { - PyObject_GC_UnTrack(m); - if (m->md_def && m->md_def->m_free) - m->md_def->m_free(m); - if (m->md_dict != NULL) { - /* If we are the only ones holding a reference, we can clear - the dictionary. */ - if (Py_REFCNT(m->md_dict) == 1) - _PyModule_Clear((PyObject *)m); - Py_DECREF(m->md_dict); - } - if (m->md_state != NULL) - PyMem_FREE(m->md_state); - Py_TYPE(m)->tp_free((PyObject *)m); + PyObject_GC_UnTrack(m); + if (m->md_def && m->md_def->m_free) + m->md_def->m_free(m); + if (m->md_dict != NULL) { + /* If we are the only ones holding a reference, we can clear + the dictionary. */ + if (Py_REFCNT(m->md_dict) == 1) + _PyModule_Clear((PyObject *)m); + Py_DECREF(m->md_dict); + } + if (m->md_state != NULL) + PyMem_FREE(m->md_state); + Py_TYPE(m)->tp_free((PyObject *)m); } static PyObject * module_repr(PyModuleObject *m) { - const char *name; - PyObject *filename; - - name = PyModule_GetName((PyObject *)m); - if (name == NULL) { - PyErr_Clear(); - name = "?"; - } - filename = module_getfilename((PyObject *)m); - if (filename == NULL) { - PyErr_Clear(); - return PyUnicode_FromFormat("<module '%s' (built-in)>", name); - } - return PyUnicode_FromFormat("<module '%s' from '%U'>", name, filename); + const char *name; + PyObject *filename; + + name = PyModule_GetName((PyObject *)m); + if (name == NULL) { + PyErr_Clear(); + name = "?"; + } + filename = module_getfilename((PyObject *)m); + if (filename == NULL) { + PyErr_Clear(); + return PyUnicode_FromFormat("<module '%s' (built-in)>", name); + } + return PyUnicode_FromFormat("<module '%s' from '%U'>", name, filename); } static int module_traverse(PyModuleObject *m, visitproc visit, void *arg) { - if (m->md_def && m->md_def->m_traverse) { - int res = m->md_def->m_traverse((PyObject*)m, visit, arg); - if (res) - return res; - } - Py_VISIT(m->md_dict); - return 0; + if (m->md_def && m->md_def->m_traverse) { + int res = m->md_def->m_traverse((PyObject*)m, visit, arg); + if (res) + return res; + } + Py_VISIT(m->md_dict); + return 0; } static int module_clear(PyModuleObject *m) { - if (m->md_def && m->md_def->m_clear) { - int res = m->md_def->m_clear((PyObject*)m); - if (res) - return res; - } - Py_CLEAR(m->md_dict); - return 0; + if (m->md_def && m->md_def->m_clear) { + int res = m->md_def->m_clear((PyObject*)m); + if (res) + return res; + } + Py_CLEAR(m->md_dict); + return 0; } - + PyDoc_STRVAR(module_doc, "module(name[, doc])\n\ @@ -384,44 +384,44 @@ Create a module object.\n\ The name must be a string; the optional doc argument can have any type."); PyTypeObject PyModule_Type = { - PyVarObject_HEAD_INIT(&PyType_Type, 0) - "module", /* tp_name */ - sizeof(PyModuleObject), /* tp_size */ - 0, /* tp_itemsize */ - (destructor)module_dealloc, /* tp_dealloc */ - 0, /* tp_print */ - 0, /* tp_getattr */ - 0, /* tp_setattr */ - 0, /* tp_reserved */ - (reprfunc)module_repr, /* tp_repr */ - 0, /* tp_as_number */ - 0, /* tp_as_sequence */ - 0, /* tp_as_mapping */ - 0, /* tp_hash */ - 0, /* tp_call */ - 0, /* tp_str */ - PyObject_GenericGetAttr, /* tp_getattro */ - PyObject_GenericSetAttr, /* tp_setattro */ - 0, /* tp_as_buffer */ - Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | - Py_TPFLAGS_BASETYPE, /* tp_flags */ - module_doc, /* tp_doc */ - (traverseproc)module_traverse, /* tp_traverse */ - (inquiry)module_clear, /* tp_clear */ - 0, /* tp_richcompare */ - 0, /* tp_weaklistoffset */ - 0, /* tp_iter */ - 0, /* tp_iternext */ - 0, /* tp_methods */ - module_members, /* tp_members */ - 0, /* tp_getset */ - 0, /* tp_base */ - 0, /* tp_dict */ - 0, /* tp_descr_get */ - 0, /* tp_descr_set */ - offsetof(PyModuleObject, md_dict), /* tp_dictoffset */ - (initproc)module_init, /* tp_init */ - PyType_GenericAlloc, /* tp_alloc */ - PyType_GenericNew, /* tp_new */ - PyObject_GC_Del, /* tp_free */ + PyVarObject_HEAD_INIT(&PyType_Type, 0) + "module", /* tp_name */ + sizeof(PyModuleObject), /* tp_size */ + 0, /* tp_itemsize */ + (destructor)module_dealloc, /* tp_dealloc */ + 0, /* tp_print */ + 0, /* tp_getattr */ + 0, /* tp_setattr */ + 0, /* tp_reserved */ + (reprfunc)module_repr, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_hash */ + 0, /* tp_call */ + 0, /* tp_str */ + PyObject_GenericGetAttr, /* tp_getattro */ + PyObject_GenericSetAttr, /* tp_setattro */ + 0, /* tp_as_buffer */ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | + Py_TPFLAGS_BASETYPE, /* tp_flags */ + module_doc, /* tp_doc */ + (traverseproc)module_traverse, /* tp_traverse */ + (inquiry)module_clear, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + 0, /* tp_methods */ + module_members, /* tp_members */ + 0, /* tp_getset */ + 0, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + offsetof(PyModuleObject, md_dict), /* tp_dictoffset */ + (initproc)module_init, /* tp_init */ + PyType_GenericAlloc, /* tp_alloc */ + PyType_GenericNew, /* tp_new */ + PyObject_GC_Del, /* tp_free */ }; |