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-rw-r--r--Objects/descrobject.c854
1 files changed, 854 insertions, 0 deletions
diff --git a/Objects/descrobject.c b/Objects/descrobject.c
new file mode 100644
index 0000000..40629f6
--- /dev/null
+++ b/Objects/descrobject.c
@@ -0,0 +1,854 @@
+/* Descriptors -- a new, flexible way to describe attributes */
+
+#include "Python.h"
+#include "structmember.h" /* Why is this not included in Python.h? */
+
+/* Various kinds of descriptor objects */
+
+#define COMMON \
+ PyObject_HEAD \
+ PyTypeObject *d_type; \
+ PyObject *d_name
+
+typedef struct {
+ COMMON;
+} PyDescrObject;
+
+typedef struct {
+ COMMON;
+ PyMethodDef *d_method;
+} PyMethodDescrObject;
+
+typedef struct {
+ COMMON;
+ struct memberlist *d_member;
+} PyMemberDescrObject;
+
+typedef struct {
+ COMMON;
+ struct getsetlist *d_getset;
+} PyGetSetDescrObject;
+
+typedef struct {
+ COMMON;
+ struct wrapperbase *d_base;
+ void *d_wrapped; /* This can be any function pointer */
+} PyWrapperDescrObject;
+
+static void
+descr_dealloc(PyDescrObject *descr)
+{
+ Py_XDECREF(descr->d_type);
+ Py_XDECREF(descr->d_name);
+ PyObject_DEL(descr);
+}
+
+static char *
+descr_name(PyDescrObject *descr)
+{
+ if (descr->d_name != NULL && PyString_Check(descr->d_name))
+ return PyString_AS_STRING(descr->d_name);
+ else
+ return "?";
+}
+
+static PyObject *
+descr_repr(PyDescrObject *descr, char *format)
+{
+ char buffer[500];
+
+ sprintf(buffer, format, descr_name(descr), descr->d_type->tp_name);
+ return PyString_FromString(buffer);
+}
+
+static PyObject *
+method_repr(PyMethodDescrObject *descr)
+{
+ return descr_repr((PyDescrObject *)descr,
+ "<method '%.300s' of '%.100s' objects>");
+}
+
+static PyObject *
+member_repr(PyMemberDescrObject *descr)
+{
+ return descr_repr((PyDescrObject *)descr,
+ "<member '%.300s' of '%.100s' objects>");
+}
+
+static PyObject *
+getset_repr(PyGetSetDescrObject *descr)
+{
+ return descr_repr((PyDescrObject *)descr,
+ "<attribute '%.300s' of '%.100s' objects>");
+}
+
+static PyObject *
+wrapper_repr(PyWrapperDescrObject *descr)
+{
+ return descr_repr((PyDescrObject *)descr,
+ "<slot wrapper '%.300s' of '%.100s' objects>");
+}
+
+static int
+descr_check(PyDescrObject *descr, PyObject *obj, PyTypeObject *type,
+ PyObject **pres)
+{
+ if (obj == NULL || obj == Py_None) {
+ Py_INCREF(descr);
+ *pres = (PyObject *)descr;
+ return 1;
+ }
+ if (!PyObject_IsInstance(obj, (PyObject *)(descr->d_type))) {
+ PyErr_Format(PyExc_TypeError,
+ "descriptor '%.200s' for '%.100s' objects "
+ "doesn't apply to '%.100s' object",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name,
+ obj->ob_type->tp_name);
+ *pres = NULL;
+ return 1;
+ }
+ return 0;
+}
+
+static PyObject *
+method_get(PyMethodDescrObject *descr, PyObject *obj, PyTypeObject *type)
+{
+ PyObject *res;
+
+ if (descr_check((PyDescrObject *)descr, obj, type, &res))
+ return res;
+ return PyCFunction_New(descr->d_method, obj);
+}
+
+static PyObject *
+member_get(PyMemberDescrObject *descr, PyObject *obj, PyTypeObject *type)
+{
+ PyObject *res;
+
+ if (descr_check((PyDescrObject *)descr, obj, type, &res))
+ return res;
+ return PyMember_Get((char *)obj, descr->d_member,
+ descr->d_member->name);
+}
+
+static PyObject *
+getset_get(PyGetSetDescrObject *descr, PyObject *obj, PyTypeObject *type)
+{
+ PyObject *res;
+
+ if (descr_check((PyDescrObject *)descr, obj, type, &res))
+ return res;
+ if (descr->d_getset->get != NULL)
+ return descr->d_getset->get(obj, descr->d_getset->closure);
+ PyErr_Format(PyExc_TypeError,
+ "attribute '%300s' of '%.100s' objects is not readable",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name);
+ return NULL;
+}
+
+static PyObject *
+wrapper_get(PyWrapperDescrObject *descr, PyObject *obj, PyTypeObject *type)
+{
+ PyObject *res;
+
+ if (descr_check((PyDescrObject *)descr, obj, type, &res))
+ return res;
+ return PyWrapper_New((PyObject *)descr, obj);
+}
+
+static int
+descr_setcheck(PyDescrObject *descr, PyObject *obj, PyObject *value,
+ int *pres)
+{
+ assert(obj != NULL);
+ if (!PyObject_IsInstance(obj, (PyObject *)(descr->d_type))) {
+ PyErr_Format(PyExc_TypeError,
+ "descriptor '%.200s' for '%.100s' objects "
+ "doesn't apply to '%.100s' object",
+ descr_name(descr),
+ descr->d_type->tp_name,
+ obj->ob_type->tp_name);
+ *pres = -1;
+ return 1;
+ }
+ return 0;
+}
+
+static int
+member_set(PyMemberDescrObject *descr, PyObject *obj, PyObject *value)
+{
+ int res;
+
+ if (descr_setcheck((PyDescrObject *)descr, obj, value, &res))
+ return res;
+ return PyMember_Set((char *)obj, descr->d_member,
+ descr->d_member->name, value);
+}
+
+static int
+getset_set(PyGetSetDescrObject *descr, PyObject *obj, PyObject *value)
+{
+ int res;
+
+ if (descr_setcheck((PyDescrObject *)descr, obj, value, &res))
+ return res;
+ if (descr->d_getset->set != NULL)
+ return descr->d_getset->set(obj, value,
+ descr->d_getset->closure);
+ PyErr_Format(PyExc_TypeError,
+ "attribute '%300s' of '%.100s' objects is not writable",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name);
+ return -1;
+}
+
+static PyObject *
+methoddescr_call(PyMethodDescrObject *descr, PyObject *args, PyObject *kwds)
+{
+ int argc;
+ PyObject *self, *func, *result;
+
+ /* Make sure that the first argument is acceptable as 'self' */
+ assert(PyTuple_Check(args));
+ argc = PyTuple_GET_SIZE(args);
+ if (argc < 1) {
+ PyErr_Format(PyExc_TypeError,
+ "descriptor '%.300s' of '%.100s' "
+ "object needs an argument",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name);
+ return NULL;
+ }
+ self = PyTuple_GET_ITEM(args, 0);
+ if (!PyObject_IsInstance(self, (PyObject *)(descr->d_type))) {
+ PyErr_Format(PyExc_TypeError,
+ "descriptor '%.200s' "
+ "requires a '%.100s' object "
+ "but received a '%.100s'",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name,
+ self->ob_type->tp_name);
+ return NULL;
+ }
+
+ func = PyCFunction_New(descr->d_method, self);
+ if (func == NULL)
+ return NULL;
+ args = PyTuple_GetSlice(args, 1, argc);
+ if (args == NULL) {
+ Py_DECREF(func);
+ return NULL;
+ }
+ result = PyEval_CallObjectWithKeywords(func, args, kwds);
+ Py_DECREF(args);
+ Py_DECREF(func);
+ return result;
+}
+
+static PyObject *
+wrapperdescr_call(PyWrapperDescrObject *descr, PyObject *args, PyObject *kwds)
+{
+ int argc;
+ PyObject *self, *func, *result;
+
+ /* Make sure that the first argument is acceptable as 'self' */
+ assert(PyTuple_Check(args));
+ argc = PyTuple_GET_SIZE(args);
+ if (argc < 1) {
+ PyErr_Format(PyExc_TypeError,
+ "descriptor '%.300s' of '%.100s' "
+ "object needs an argument",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name);
+ return NULL;
+ }
+ self = PyTuple_GET_ITEM(args, 0);
+ if (!PyObject_IsInstance(self, (PyObject *)(descr->d_type))) {
+ PyErr_Format(PyExc_TypeError,
+ "descriptor '%.200s' "
+ "requires a '%.100s' object "
+ "but received a '%.100s'",
+ descr_name((PyDescrObject *)descr),
+ descr->d_type->tp_name,
+ self->ob_type->tp_name);
+ return NULL;
+ }
+
+ func = PyWrapper_New((PyObject *)descr, self);
+ if (func == NULL)
+ return NULL;
+ args = PyTuple_GetSlice(args, 1, argc);
+ if (args == NULL) {
+ Py_DECREF(func);
+ return NULL;
+ }
+ result = PyEval_CallObjectWithKeywords(func, args, kwds);
+ Py_DECREF(args);
+ Py_DECREF(func);
+ return result;
+}
+
+static PyObject *
+member_get_doc(PyMethodDescrObject *descr, void *closure)
+{
+ if (descr->d_method->ml_doc == NULL) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ return PyString_FromString(descr->d_method->ml_doc);
+}
+
+static struct memberlist descr_members[] = {
+ {"__objclass__", T_OBJECT, offsetof(PyDescrObject, d_type), READONLY},
+ {"__name__", T_OBJECT, offsetof(PyDescrObject, d_name), READONLY},
+ {0}
+};
+
+static struct getsetlist member_getset[] = {
+ {"__doc__", (getter)member_get_doc},
+ {0}
+};
+
+static PyObject *
+wrapper_get_doc(PyWrapperDescrObject *descr, void *closure)
+{
+ if (descr->d_base->doc == NULL) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ return PyString_FromString(descr->d_base->doc);
+}
+
+static struct getsetlist wrapper_getset[] = {
+ {"__doc__", (getter)wrapper_get_doc},
+ {0}
+};
+
+static PyTypeObject PyMethodDescr_Type = {
+ PyObject_HEAD_INIT(&PyType_Type)
+ 0,
+ "method_descriptor",
+ sizeof(PyMethodDescrObject),
+ 0,
+ (destructor)descr_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ (reprfunc)method_repr, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)methoddescr_call, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ descr_members, /* tp_members */
+ member_getset, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ (descrgetfunc)method_get, /* tp_descr_get */
+ 0, /* tp_descr_set */
+};
+
+static PyTypeObject PyMemberDescr_Type = {
+ PyObject_HEAD_INIT(&PyType_Type)
+ 0,
+ "member_descriptor",
+ sizeof(PyMemberDescrObject),
+ 0,
+ (destructor)descr_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ (reprfunc)member_repr, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ descr_members, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ (descrgetfunc)member_get, /* tp_descr_get */
+ (descrsetfunc)member_set, /* tp_descr_set */
+};
+
+static PyTypeObject PyGetSetDescr_Type = {
+ PyObject_HEAD_INIT(&PyType_Type)
+ 0,
+ "getset_descriptor",
+ sizeof(PyGetSetDescrObject),
+ 0,
+ (destructor)descr_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ (reprfunc)getset_repr, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ descr_members, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ (descrgetfunc)getset_get, /* tp_descr_get */
+ (descrsetfunc)getset_set, /* tp_descr_set */
+};
+
+static PyTypeObject PyWrapperDescr_Type = {
+ PyObject_HEAD_INIT(&PyType_Type)
+ 0,
+ "wrapper_descriptor",
+ sizeof(PyWrapperDescrObject),
+ 0,
+ (destructor)descr_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ (reprfunc)wrapper_repr, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)wrapperdescr_call, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ descr_members, /* tp_members */
+ wrapper_getset, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ (descrgetfunc)wrapper_get, /* tp_descr_get */
+ 0, /* tp_descr_set */
+};
+
+static PyDescrObject *
+descr_new(PyTypeObject *descrtype, PyTypeObject *type, char *name)
+{
+ PyDescrObject *descr;
+
+ descr = (PyDescrObject *)PyType_GenericAlloc(descrtype, 0);
+ if (descr != NULL) {
+ Py_XINCREF(type);
+ descr->d_type = type;
+ descr->d_name = PyString_InternFromString(name);
+ if (descr->d_name == NULL) {
+ Py_DECREF(descr);
+ descr = NULL;
+ }
+ }
+ return descr;
+}
+
+PyObject *
+PyDescr_NewMethod(PyTypeObject *type, PyMethodDef *method)
+{
+ PyMethodDescrObject *descr;
+
+ descr = (PyMethodDescrObject *)descr_new(&PyMethodDescr_Type,
+ type, method->ml_name);
+ if (descr != NULL)
+ descr->d_method = method;
+ return (PyObject *)descr;
+}
+
+PyObject *
+PyDescr_NewMember(PyTypeObject *type, struct memberlist *member)
+{
+ PyMemberDescrObject *descr;
+
+ descr = (PyMemberDescrObject *)descr_new(&PyMemberDescr_Type,
+ type, member->name);
+ if (descr != NULL)
+ descr->d_member = member;
+ return (PyObject *)descr;
+}
+
+PyObject *
+PyDescr_NewGetSet(PyTypeObject *type, struct getsetlist *getset)
+{
+ PyGetSetDescrObject *descr;
+
+ descr = (PyGetSetDescrObject *)descr_new(&PyGetSetDescr_Type,
+ type, getset->name);
+ if (descr != NULL)
+ descr->d_getset = getset;
+ return (PyObject *)descr;
+}
+
+PyObject *
+PyDescr_NewWrapper(PyTypeObject *type, struct wrapperbase *base, void *wrapped)
+{
+ PyWrapperDescrObject *descr;
+
+ descr = (PyWrapperDescrObject *)descr_new(&PyWrapperDescr_Type,
+ type, base->name);
+ if (descr != NULL) {
+ descr->d_base = base;
+ descr->d_wrapped = wrapped;
+ }
+ return (PyObject *)descr;
+}
+
+int
+PyDescr_IsData(PyObject *d)
+{
+ return d->ob_type->tp_descr_set != NULL;
+}
+
+
+/* --- Readonly proxy for dictionaries (actually any mapping) --- */
+
+/* This has no reason to be in this file except that adding new files is a
+ bit of a pain */
+
+typedef struct {
+ PyObject_HEAD
+ PyObject *dict;
+} proxyobject;
+
+static int
+proxy_len(proxyobject *pp)
+{
+ return PyObject_Size(pp->dict);
+}
+
+static PyObject *
+proxy_getitem(proxyobject *pp, PyObject *key)
+{
+ return PyObject_GetItem(pp->dict, key);
+}
+
+static PyMappingMethods proxy_as_mapping = {
+ (inquiry)proxy_len, /* mp_length */
+ (binaryfunc)proxy_getitem, /* mp_subscript */
+ 0, /* mp_ass_subscript */
+};
+
+static int
+proxy_contains(proxyobject *pp, PyObject *key)
+{
+ return PySequence_Contains(pp->dict, key);
+}
+
+static PySequenceMethods proxy_as_sequence = {
+ 0, /* sq_length */
+ 0, /* sq_concat */
+ 0, /* sq_repeat */
+ 0, /* sq_item */
+ 0, /* sq_slice */
+ 0, /* sq_ass_item */
+ 0, /* sq_ass_slice */
+ (objobjproc)proxy_contains, /* sq_contains */
+ 0, /* sq_inplace_concat */
+ 0, /* sq_inplace_repeat */
+};
+
+static PyObject *
+proxy_has_key(proxyobject *pp, PyObject *args)
+{
+ PyObject *key;
+
+ if (!PyArg_ParseTuple(args, "O:has_key", &key))
+ return NULL;
+ return PyInt_FromLong(PySequence_Contains(pp->dict, key));
+}
+
+static PyObject *
+proxy_get(proxyobject *pp, PyObject *args)
+{
+ PyObject *key, *def = Py_None;
+
+ if (!PyArg_ParseTuple(args, "O|O:get", &key, &def))
+ return NULL;
+ return PyObject_CallMethod(pp->dict, "get", "(OO)", key, def);
+}
+
+static PyObject *
+proxy_keys(proxyobject *pp, PyObject *args)
+{
+ if (!PyArg_ParseTuple(args, ":keys"))
+ return NULL;
+ return PyMapping_Keys(pp->dict);
+}
+
+static PyObject *
+proxy_values(proxyobject *pp, PyObject *args)
+{
+ if (!PyArg_ParseTuple(args, ":values"))
+ return NULL;
+ return PyMapping_Values(pp->dict);
+}
+
+static PyObject *
+proxy_items(proxyobject *pp, PyObject *args)
+{
+ if (!PyArg_ParseTuple(args, ":items"))
+ return NULL;
+ return PyMapping_Items(pp->dict);
+}
+
+static PyObject *
+proxy_copy(proxyobject *pp, PyObject *args)
+{
+ if (!PyArg_ParseTuple(args, ":copy"))
+ return NULL;
+ return PyObject_CallMethod(pp->dict, "copy", NULL);
+}
+
+static PyMethodDef proxy_methods[] = {
+ {"has_key", (PyCFunction)proxy_has_key, METH_VARARGS, "XXX"},
+ {"get", (PyCFunction)proxy_get, METH_VARARGS, "XXX"},
+ {"keys", (PyCFunction)proxy_keys, METH_VARARGS, "XXX"},
+ {"values", (PyCFunction)proxy_values, METH_VARARGS, "XXX"},
+ {"items", (PyCFunction)proxy_items, METH_VARARGS, "XXX"},
+ {"copy", (PyCFunction)proxy_copy, METH_VARARGS, "XXX"},
+ {0}
+};
+
+static void
+proxy_dealloc(proxyobject *pp)
+{
+ Py_DECREF(pp->dict);
+ PyObject_DEL(pp);
+}
+
+static PyObject *
+proxy_getiter(proxyobject *pp)
+{
+ return PyObject_GetIter(pp->dict);
+}
+
+PyObject *
+proxy_str(proxyobject *pp)
+{
+ return PyObject_Str(pp->dict);
+}
+
+PyTypeObject proxytype = {
+ PyObject_HEAD_INIT(&PyType_Type)
+ 0, /* ob_size */
+ "dict-proxy", /* tp_name */
+ sizeof(proxyobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)proxy_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ &proxy_as_sequence, /* tp_as_sequence */
+ &proxy_as_mapping, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ (reprfunc)proxy_str, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ (getiterfunc)proxy_getiter, /* tp_iter */
+ 0, /* tp_iternext */
+ proxy_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+};
+
+PyObject *
+PyDictProxy_New(PyObject *dict)
+{
+ proxyobject *pp;
+
+ pp = PyObject_NEW(proxyobject, &proxytype);
+ if (pp != NULL) {
+ Py_INCREF(dict);
+ pp->dict = dict;
+ }
+ return (PyObject *)pp;
+}
+
+
+/* --- Wrapper object for "slot" methods --- */
+
+/* This has no reason to be in this file except that adding new files is a
+ bit of a pain */
+
+typedef struct {
+ PyObject_HEAD
+ PyWrapperDescrObject *descr;
+ PyObject *self;
+} wrapperobject;
+
+static void
+wrapper_dealloc(wrapperobject *wp)
+{
+ Py_XDECREF(wp->descr);
+ Py_XDECREF(wp->self);
+ PyObject_DEL(wp);
+}
+
+static PyMethodDef wrapper_methods[] = {
+ {0}
+};
+
+static PyObject *
+wrapper_name(wrapperobject *wp)
+{
+ char *s = wp->descr->d_base->name;
+
+ return PyString_FromString(s);
+}
+
+static PyObject *
+wrapper_doc(wrapperobject *wp)
+{
+ char *s = wp->descr->d_base->doc;
+
+ if (s == NULL) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ else {
+ return PyString_FromString(s);
+ }
+}
+
+static struct getsetlist wrapper_getsets[] = {
+ {"__name__", (getter)wrapper_name},
+ {"__doc__", (getter)wrapper_doc},
+ {0}
+};
+
+static PyObject *
+wrapper_call(wrapperobject *wp, PyObject *args, PyObject *kwds)
+{
+ wrapperfunc wrapper = wp->descr->d_base->wrapper;
+ PyObject *self = wp->self;
+
+ return (*wrapper)(self, args, wp->descr->d_wrapped);
+}
+
+PyTypeObject wrappertype = {
+ PyObject_HEAD_INIT(&PyType_Type)
+ 0, /* ob_size */
+ "method-wrapper", /* tp_name */
+ sizeof(wrapperobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)wrapper_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)wrapper_call, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ wrapper_methods, /* tp_methods */
+ 0, /* tp_members */
+ wrapper_getsets, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+};
+
+PyObject *
+PyWrapper_New(PyObject *d, PyObject *self)
+{
+ wrapperobject *wp;
+ PyWrapperDescrObject *descr;
+
+ assert(PyObject_TypeCheck(d, &PyWrapperDescr_Type));
+ descr = (PyWrapperDescrObject *)d;
+ assert(PyObject_IsInstance(self, (PyObject *)(descr->d_type)));
+
+ wp = PyObject_NEW(wrapperobject, &wrappertype);
+ if (wp != NULL) {
+ Py_INCREF(descr);
+ wp->descr = descr;
+ Py_INCREF(self);
+ wp->self = self;
+ }
+ return (PyObject *)wp;
+}
generated by cgit v0.12 at 2024-11-23 16:56:53 (GMT)