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- /***********************************************************
- Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
- The Netherlands.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Stichting Mathematisch
- Centrum or CWI or Corporation for National Research Initiatives or
- CNRI not be used in advertising or publicity pertaining to
- distribution of the software without specific, written prior
- permission.
-
- While CWI is the initial source for this software, a modified version
- is made available by the Corporation for National Research Initiatives
- (CNRI) at the Internet address ftp://ftp.python.org.
-
- STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
- REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
- CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
- DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- PERFORMANCE OF THIS SOFTWARE.
-
- ******************************************************************/
-
- /* Generic object operations; and implementation of None (NoObject) */
-
- #include "Python.h"
-
- #include "protos/object.h"
-
- #if defined( Py_TRACE_REFS ) || defined( Py_REF_DEBUG )
- long _Py_RefTotal;
- #endif
-
- /* Object allocation routines used by NEWOBJ and NEWVAROBJ macros.
- These are used by the individual routines for object creation.
- Do not call them otherwise, they do not initialize the object! */
-
- #ifdef COUNT_ALLOCS
- static PyTypeObject *type_list;
- extern int tuple_zero_allocs, fast_tuple_allocs;
- extern int quick_int_allocs, quick_neg_int_allocs;
- extern int null_strings, one_strings;
- void
- dump_counts()
- {
- PyTypeObject *tp;
-
- for (tp = type_list; tp; tp = tp->tp_next)
- fprintf(stderr, "%s alloc'd: %d, freed: %d, max in use: %d\n",
- tp->tp_name, tp->tp_alloc, tp->tp_free,
- tp->tp_maxalloc);
- fprintf(stderr, "fast tuple allocs: %d, empty: %d\n",
- fast_tuple_allocs, tuple_zero_allocs);
- fprintf(stderr, "fast int allocs: pos: %d, neg: %d\n",
- quick_int_allocs, quick_neg_int_allocs);
- fprintf(stderr, "null strings: %d, 1-strings: %d\n",
- null_strings, one_strings);
- }
-
- PyObject *
- get_counts()
- {
- PyTypeObject *tp;
- PyObject *result;
- PyObject *v;
-
- result = PyList_New(0);
- if (result == NULL)
- return NULL;
- for (tp = type_list; tp; tp = tp->tp_next) {
- v = Py_BuildValue("(siii)", tp->tp_name, tp->tp_alloc,
- tp->tp_free, tp->tp_maxalloc);
- if (v == NULL) {
- Py_DECREF(result);
- return NULL;
- }
- if (PyList_Append(result, v) < 0) {
- Py_DECREF(v);
- Py_DECREF(result);
- return NULL;
- }
- Py_DECREF(v);
- }
- return result;
- }
-
- void
- inc_count(tp)
- PyTypeObject *tp;
- {
- if (tp->tp_alloc == 0) {
- /* first time; insert in linked list */
- if (tp->tp_next != NULL) /* sanity check */
- Py_FatalError("XXX inc_count sanity check");
- tp->tp_next = type_list;
- type_list = tp;
- }
- tp->tp_alloc++;
- if (tp->tp_alloc - tp->tp_free > tp->tp_maxalloc)
- tp->tp_maxalloc = tp->tp_alloc - tp->tp_free;
- }
- #endif
-
- #ifndef MS_COREDLL
- PyObject *
- _PyObject_New(tp)
- PyTypeObject *tp;
- #else
- PyObject *
- _PyObject_New(tp,op)
- PyTypeObject *tp;
- PyObject *op;
- #endif
- {
- #ifndef MS_COREDLL
- PyObject *op = (PyObject *) malloc(tp->tp_basicsize);
- #endif
- if (op == NULL)
- return PyErr_NoMemory();
- op->ob_type = tp;
- _Py_NewReference(op);
- return op;
- }
-
- #ifndef MS_COREDLL
- PyVarObject *
- _PyObject_NewVar(tp, size)
- PyTypeObject *tp;
- int size;
- #else
- PyVarObject *
- _PyObject_NewVar(tp, size, op)
- PyTypeObject *tp;
- int size;
- PyVarObject *op;
- #endif
- {
- #ifndef MS_COREDLL
- PyVarObject *op = (PyVarObject *)
- malloc(tp->tp_basicsize + size * tp->tp_itemsize);
- #endif
- if (op == NULL)
- return (PyVarObject *)PyErr_NoMemory();
- op->ob_type = tp;
- op->ob_size = size;
- _Py_NewReference(op);
- return op;
- }
-
- int
- PyObject_Print(op, fp, flags)
- PyObject *op;
- FILE *fp;
- int flags;
- {
- int ret = 0;
- if (PyErr_CheckSignals())
- return -1;
- #ifdef USE_STACKCHECK
- if (PyOS_CheckStack()) {
- PyErr_SetString(PyExc_MemoryError, "Stack overflow");
- return -1;
- }
- #endif
- if (op == NULL) {
- fprintf(fp, "<nil>");
- }
- else {
- if (op->ob_refcnt <= 0)
- fprintf(fp, "<refcnt %u at %lx>",
- op->ob_refcnt, (long)op);
- else if (op->ob_type->tp_print == NULL) {
- if (op->ob_type->tp_repr == NULL) {
- fprintf(fp, "<%s object at %lx>",
- op->ob_type->tp_name, (long)op);
- }
- else {
- PyObject *s;
- if (flags & Py_PRINT_RAW)
- s = PyObject_Str(op);
- else
- s = PyObject_Repr(op);
- if (s == NULL)
- ret = -1;
- else if (!PyString_Check(s)) {
- PyErr_SetString(PyExc_TypeError,
- "repr not string");
- ret = -1;
- }
- else {
- ret = PyObject_Print(s, fp,
- Py_PRINT_RAW);
- }
- Py_XDECREF(s);
- }
- }
- else
- ret = (*op->ob_type->tp_print)(op, fp, flags);
- }
- if (ret == 0) {
- if (ferror(fp)) {
- PyErr_SetFromErrno(PyExc_IOError);
- clearerr(fp);
- ret = -1;
- }
- }
- return ret;
- }
-
- PyObject *
- PyObject_Repr(v)
- PyObject *v;
- {
- if (PyErr_CheckSignals())
- return NULL;
- #ifdef USE_STACKCHECK
- if (PyOS_CheckStack()) {
- PyErr_SetString(PyExc_MemoryError, "Stack overflow");
- return NULL;
- }
- #endif
- if (v == NULL)
- return PyString_FromString("<NULL>");
- else if (v->ob_type->tp_repr == NULL) {
- char buf[120];
- sprintf(buf, "<%.80s object at %lx>",
- v->ob_type->tp_name, (long)v);
- return PyString_FromString(buf);
- }
- else
- return (*v->ob_type->tp_repr)(v);
- }
-
- PyObject *
- PyObject_Str(v)
- PyObject *v;
- {
- if (v == NULL)
- return PyString_FromString("<NULL>");
- else if (PyString_Check(v)) {
- Py_INCREF(v);
- return v;
- }
- else if (v->ob_type->tp_str != NULL)
- return (*v->ob_type->tp_str)(v);
- else {
- PyObject *func;
- PyObject *res;
- if (!PyInstance_Check(v) ||
- (func = PyObject_GetAttrString(v, "__str__")) == NULL) {
- PyErr_Clear();
- return PyObject_Repr(v);
- }
- res = PyEval_CallObject(func, (PyObject *)NULL);
- Py_DECREF(func);
- return res;
- }
- }
-
- static PyObject *
- do_cmp(v, w)
- PyObject *v, *w;
- {
- long c;
- /* __rcmp__ actually won't be called unless __cmp__ isn't defined,
- because the check in cmpobject() reverses the objects first.
- This is intentional -- it makes no sense to define cmp(x,y)
- different than -cmp(y,x). */
- if (PyInstance_Check(v) || PyInstance_Check(w))
- return PyInstance_DoBinOp(v, w, "__cmp__", "__rcmp__", do_cmp);
- c = PyObject_Compare(v, w);
- if (c && PyErr_Occurred())
- return NULL;
- return PyInt_FromLong(c);
- }
-
- int
- PyObject_Compare(v, w)
- PyObject *v, *w;
- {
- PyTypeObject *vtp, *wtp;
- if (v == NULL || w == NULL) {
- PyErr_BadInternalCall();
- return -1;
- }
- if (v == w)
- return 0;
- if (PyInstance_Check(v) || PyInstance_Check(w)) {
- PyObject *res;
- int c;
- if (!PyInstance_Check(v))
- return -PyObject_Compare(w, v);
- res = do_cmp(v, w);
- if (res == NULL)
- return -1;
- if (!PyInt_Check(res)) {
- Py_DECREF(res);
- PyErr_SetString(PyExc_TypeError,
- "comparison did not return an int");
- return -1;
- }
- c = PyInt_AsLong(res);
- Py_DECREF(res);
- return (c < 0) ? -1 : (c > 0) ? 1 : 0;
- }
- if ((vtp = v->ob_type) != (wtp = w->ob_type)) {
- char *vname = vtp->tp_name;
- char *wname = wtp->tp_name;
- if (vtp->tp_as_number != NULL && wtp->tp_as_number != NULL) {
- int err;
- err = PyNumber_CoerceEx(&v, &w);
- if (err < 0)
- return -1;
- else if (err == 0) {
- int cmp;
- vtp = v->ob_type;
- if (vtp->tp_compare == NULL)
- cmp = (v < w) ? -1 : 1;
- else
- cmp = (*vtp->tp_compare)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return cmp;
- }
- }
- else if (vtp->tp_as_number != NULL)
- vname = "";
- else if (wtp->tp_as_number != NULL)
- wname = "";
- /* Numerical types compare smaller than all other types */
- return strcmp(vname, wname);
- }
- if (vtp->tp_compare == NULL)
- return (v < w) ? -1 : 1;
- return (*vtp->tp_compare)(v, w);
- }
-
- long
- PyObject_Hash(v)
- PyObject *v;
- {
- PyTypeObject *tp = v->ob_type;
- if (tp->tp_hash != NULL)
- return (*tp->tp_hash)(v);
- if (tp->tp_compare == NULL)
- return (long) v; /* Use address as hash value */
- /* If there's a cmp but no hash defined, the object can't be hashed */
- PyErr_SetString(PyExc_TypeError, "unhashable type");
- return -1;
- }
-
- PyObject *
- PyObject_GetAttrString(v, name)
- PyObject *v;
- char *name;
- {
- if (v->ob_type->tp_getattro != NULL) {
- PyObject *w, *res;
- w = PyString_InternFromString(name);
- if (w == NULL)
- return NULL;
- res = (*v->ob_type->tp_getattro)(v, w);
- Py_XDECREF(w);
- return res;
- }
-
- if (v->ob_type->tp_getattr == NULL) {
- PyErr_Format(PyExc_AttributeError,
- "'%.50s' object has no attribute '%.400s'",
- v->ob_type->tp_name,
- name);
- return NULL;
- }
- else {
- return (*v->ob_type->tp_getattr)(v, name);
- }
- }
-
- int
- PyObject_HasAttrString(v, name)
- PyObject *v;
- char *name;
- {
- PyObject *res = PyObject_GetAttrString(v, name);
- if (res != NULL) {
- Py_DECREF(res);
- return 1;
- }
- PyErr_Clear();
- return 0;
- }
-
- int
- PyObject_SetAttrString(v, name, w)
- PyObject *v;
- char *name;
- PyObject *w;
- {
- if (v->ob_type->tp_setattro != NULL) {
- PyObject *s;
- int res;
- s = PyString_InternFromString(name);
- if (s == NULL)
- return -1;
- res = (*v->ob_type->tp_setattro)(v, s, w);
- Py_XDECREF(s);
- return res;
- }
-
- if (v->ob_type->tp_setattr == NULL) {
- if (v->ob_type->tp_getattr == NULL)
- PyErr_SetString(PyExc_TypeError,
- "attribute-less object (assign or del)");
- else
- PyErr_SetString(PyExc_TypeError,
- "object has read-only attributes");
- return -1;
- }
- else {
- return (*v->ob_type->tp_setattr)(v, name, w);
- }
- }
-
- PyObject *
- PyObject_GetAttr(v, name)
- PyObject *v;
- PyObject *name;
- {
- if (v->ob_type->tp_getattro != NULL)
- return (*v->ob_type->tp_getattro)(v, name);
- else
- return PyObject_GetAttrString(v, PyString_AsString(name));
- }
-
- int
- PyObject_HasAttr(v, name)
- PyObject *v;
- PyObject *name;
- {
- PyObject *res = PyObject_GetAttr(v, name);
- if (res != NULL) {
- Py_DECREF(res);
- return 1;
- }
- PyErr_Clear();
- return 0;
- }
-
- int
- PyObject_SetAttr(v, name, value)
- PyObject *v;
- PyObject *name;
- PyObject *value;
- {
- int err;
- Py_INCREF(name);
- PyString_InternInPlace(&name);
- if (v->ob_type->tp_setattro != NULL)
- err = (*v->ob_type->tp_setattro)(v, name, value);
- else
- err = PyObject_SetAttrString(
- v, PyString_AsString(name), value);
- Py_DECREF(name);
- return err;
- }
-
- /* Test a value used as condition, e.g., in a for or if statement.
- Return -1 if an error occurred */
-
- int
- PyObject_IsTrue(v)
- PyObject *v;
- {
- int res;
- if (v == Py_None)
- res = 0;
- else if (v->ob_type->tp_as_number != NULL &&
- v->ob_type->tp_as_number->nb_nonzero != NULL)
- res = (*v->ob_type->tp_as_number->nb_nonzero)(v);
- else if (v->ob_type->tp_as_mapping != NULL &&
- v->ob_type->tp_as_mapping->mp_length != NULL)
- res = (*v->ob_type->tp_as_mapping->mp_length)(v);
- else if (v->ob_type->tp_as_sequence != NULL &&
- v->ob_type->tp_as_sequence->sq_length != NULL)
- res = (*v->ob_type->tp_as_sequence->sq_length)(v);
- else
- res = 1;
- if (res > 0)
- res = 1;
- return res;
- }
-
- /* equivalent of 'not v'
- Return -1 if an error occurred */
-
- int
- PyObject_Not(v)
- PyObject *v;
- {
- int res;
- res = PyObject_IsTrue(v);
- if (res < 0)
- return res;
- return res == 0;
- }
-
- /* Coerce two numeric types to the "larger" one.
- Increment the reference count on each argument.
- Return -1 and raise an exception if no coercion is possible
- (and then no reference count is incremented).
- */
-
- int
- PyNumber_CoerceEx(pv, pw)
- PyObject **pv, **pw;
- {
- register PyObject *v = *pv;
- register PyObject *w = *pw;
- int res;
-
- if (v->ob_type == w->ob_type && !PyInstance_Check(v)) {
- Py_INCREF(v);
- Py_INCREF(w);
- return 0;
- }
- if (v->ob_type->tp_as_number && v->ob_type->tp_as_number->nb_coerce) {
- res = (*v->ob_type->tp_as_number->nb_coerce)(pv, pw);
- if (res <= 0)
- return res;
- }
- if (w->ob_type->tp_as_number && w->ob_type->tp_as_number->nb_coerce) {
- res = (*w->ob_type->tp_as_number->nb_coerce)(pw, pv);
- if (res <= 0)
- return res;
- }
- return 1;
- }
-
- int
- PyNumber_Coerce(pv, pw)
- PyObject **pv, **pw;
- {
- int err = PyNumber_CoerceEx(pv, pw);
- if (err <= 0)
- return err;
- PyErr_SetString(PyExc_TypeError, "number coercion failed");
- return -1;
- }
-
-
- /* Test whether an object can be called */
-
- int
- PyCallable_Check(x)
- PyObject *x;
- {
- if (x == NULL)
- return 0;
- if (x->ob_type->tp_call != NULL ||
- PyFunction_Check(x) ||
- PyMethod_Check(x) ||
- PyCFunction_Check(x) ||
- PyClass_Check(x))
- return 1;
- if (PyInstance_Check(x)) {
- PyObject *call = PyObject_GetAttrString(x, "__call__");
- if (call == NULL) {
- PyErr_Clear();
- return 0;
- }
- /* Could test recursively but don't, for fear of endless
- recursion if some joker sets self.__call__ = self */
- Py_DECREF(call);
- return 1;
- }
- return 0;
- }
-
-
- /*
- NoObject is usable as a non-NULL undefined value, used by the macro None.
- There is (and should be!) no way to create other objects of this type,
- so there is exactly one (which is indestructible, by the way).
- */
-
- /* ARGSUSED */
- static PyObject *
- none_repr(op)
- PyObject *op;
- {
- return PyString_FromString("None");
- }
-
- static PyTypeObject PyNothing_Type = {
- PyObject_HEAD_INIT(&PyType_Type)
- 0,
- "None",
- 0,
- 0,
- 0, /*tp_dealloc*/ /*never called*/
- 0, /*tp_print*/
- 0, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- (reprfunc)none_repr, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- 0, /*tp_hash */
- };
-
- PyObject _Py_NoneStruct = {
- PyObject_HEAD_INIT(&PyNothing_Type)
- };
-
-
- #ifdef Py_TRACE_REFS
-
- static PyObject refchain = {&refchain, &refchain};
-
- void
- _Py_ResetReferences()
- {
- refchain._ob_prev = refchain._ob_next = &refchain;
- _Py_RefTotal = 0;
- }
-
- void
- _Py_NewReference(op)
- PyObject *op;
- {
- _Py_RefTotal++;
- op->ob_refcnt = 1;
- op->_ob_next = refchain._ob_next;
- op->_ob_prev = &refchain;
- refchain._ob_next->_ob_prev = op;
- refchain._ob_next = op;
- #ifdef COUNT_ALLOCS
- inc_count(op->ob_type);
- #endif
- }
-
- void
- _Py_ForgetReference(op)
- register PyObject *op;
- {
- register PyObject *p;
- if (op->ob_refcnt < 0)
- Py_FatalError("UNREF negative refcnt");
- if (op == &refchain ||
- op->_ob_prev->_ob_next != op || op->_ob_next->_ob_prev != op)
- Py_FatalError("UNREF invalid object");
- #ifdef SLOW_UNREF_CHECK
- for (p = refchain._ob_next; p != &refchain; p = p->_ob_next) {
- if (p == op)
- break;
- }
- if (p == &refchain) /* Not found */
- Py_FatalError("UNREF unknown object");
- #endif
- op->_ob_next->_ob_prev = op->_ob_prev;
- op->_ob_prev->_ob_next = op->_ob_next;
- op->_ob_next = op->_ob_prev = NULL;
- #ifdef COUNT_ALLOCS
- op->ob_type->tp_free++;
- #endif
- }
-
- void
- _Py_Dealloc(op)
- PyObject *op;
- {
- destructor dealloc = op->ob_type->tp_dealloc;
- _Py_ForgetReference(op);
- op->ob_type = NULL;
- (*dealloc)(op);
- }
-
- void
- _Py_PrintReferences(fp)
- FILE *fp;
- {
- PyObject *op;
- fprintf(fp, "Remaining objects:\n");
- for (op = refchain._ob_next; op != &refchain; op = op->_ob_next) {
- fprintf(fp, "[%d] ", op->ob_refcnt);
- if (PyObject_Print(op, fp, 0) != 0)
- PyErr_Clear();
- putc('\n', fp);
- }
- }
-
- PyObject *
- _Py_GetObjects(self, args)
- PyObject *self;
- PyObject *args;
- {
- int i, n;
- PyObject *t = NULL;
- PyObject *res, *op;
-
- if (!PyArg_ParseTuple(args, "i|O", &n, &t))
- return NULL;
- op = refchain._ob_next;
- res = PyList_New(0);
- if (res == NULL)
- return NULL;
- for (i = 0; (n == 0 || i < n) && op != &refchain; i++) {
- while (op == self || op == args || op == res || op == t ||
- t != NULL && op->ob_type != (PyTypeObject *) t) {
- op = op->_ob_next;
- if (op == &refchain)
- return res;
- }
- if (PyList_Append(res, op) < 0) {
- Py_DECREF(res);
- return NULL;
- }
- op = op->_ob_next;
- }
- return res;
- }
-
- #endif
-
-
- /* Hack to force loading of cobject.o */
- PyTypeObject *_Py_cobject_hack = &PyCObject_Type;
-
-
- /* Hack to force loading of abstract.o */
- int (*_Py_abstract_hack) Py_FPROTO((PyObject *)) = &PyObject_Length;
-
-
- /* Malloc wrappers (see mymalloc.h) */
-
- /* The Py_{Malloc,Realloc} wrappers call PyErr_NoMemory() on failure */
-
- ANY *
- Py_Malloc(nbytes)
- size_t nbytes;
- {
- ANY *p;
- #if _PyMem_EXTRA > 0
- if (nbytes == 0)
- nbytes = _PyMem_EXTRA;
- #endif
- p = malloc(nbytes);
- if (p != NULL)
- return p;
- else {
- PyErr_NoMemory();
- return NULL;
- }
- }
-
- ANY *
- Py_Realloc(p, nbytes)
- ANY *p;
- size_t nbytes;
- {
- #if _PyMem_EXTRA > 0
- if (nbytes == 0)
- nbytes = _PyMem_EXTRA;
- #endif
- p = realloc(p, nbytes);
- if (p != NULL)
- return p;
- else {
- PyErr_NoMemory();
- return NULL;
- }
- }
-
- void
- Py_Free(p)
- ANY *p;
- {
- free(p);
- }
-
- /* The PyMem_{Malloc,Realloc} wrappers don't call anything on failure */
-
- ANY *
- PyMem_Malloc(nbytes)
- size_t nbytes;
- {
- #if _PyMem_EXTRA > 0
- if (nbytes == 0)
- nbytes = _PyMem_EXTRA;
- #endif
- return malloc(nbytes);
- }
-
- ANY *
- PyMem_Realloc(p, nbytes)
- ANY *p;
- size_t nbytes;
- {
- #if _PyMem_EXTRA > 0
- if (nbytes == 0)
- nbytes = _PyMem_EXTRA;
- #endif
- return realloc(p, nbytes);
- }
-
- void
- PyMem_Free(p)
- ANY *p;
- {
- free(p);
- }
-
-
- /* These methods are used to control infinite recursion in repr, str, print,
- etc. Container objects that may recursively contain themselves,
- e.g. builtin dictionaries and lists, should used Py_ReprEnter() and
- Py_ReprLeave() to avoid infinite recursion.
-
- Py_ReprEnter() returns 0 the first time it is called for a particular
- object and 1 every time thereafter. It returns -1 if an exception
- occurred. Py_ReprLeave() has no return value.
-
- See dictobject.c and listobject.c for examples of use.
- */
-
- #define KEY "Py_Repr"
-
- int
- Py_ReprEnter(obj)
- PyObject *obj;
- {
- PyObject *dict;
- PyObject *list;
- int i;
-
- dict = PyThreadState_GetDict();
- if (dict == NULL)
- return -1;
- list = PyDict_GetItemString(dict, KEY);
- if (list == NULL) {
- list = PyList_New(0);
- if (list == NULL)
- return -1;
- if (PyDict_SetItemString(dict, KEY, list) < 0)
- return -1;
- Py_DECREF(list);
- }
- i = PyList_GET_SIZE(list);
- while (--i >= 0) {
- if (PyList_GET_ITEM(list, i) == obj)
- return 1;
- }
- PyList_Append(list, obj);
- return 0;
- }
-
- void
- Py_ReprLeave(obj)
- PyObject *obj;
- {
- PyObject *dict;
- PyObject *list;
- int i;
-
- dict = PyThreadState_GetDict();
- if (dict == NULL)
- return;
- list = PyDict_GetItemString(dict, KEY);
- if (list == NULL || !PyList_Check(list))
- return;
- i = PyList_GET_SIZE(list);
- /* Count backwards because we always expect obj to be list[-1] */
- while (--i >= 0) {
- if (PyList_GET_ITEM(list, i) == obj) {
- PyList_SetSlice(list, i, i + 1, NULL);
- break;
- }
- }
- }
-