Expand Up @@ -15,7 +15,7 @@ this type and there is exactly one in existence.
#include "Python.h" #include "pycore_abstract.h" // _PyIndex_Check() #include "pycore_object.h" #include "pycore_object.h" // _PyObject_GC_TRACK() #include "structmember.h" // PyMemberDef
static PyObject * Expand Down Expand Up @@ -95,16 +95,13 @@ PyObject _Py_EllipsisObject = {
/* Slice object implementation */
/* Using a cache is very effective since typically only a single slice is * created and then deleted again */ static PySliceObject *slice_cache = NULL;
void _PySlice_Fini(void) void _PySlice_Fini(PyThreadState *tstate) { PySliceObject *obj = slice_cache; PyInterpreterState *interp = tstate->interp; PySliceObject *obj = interp->slice_cache; if (obj != NULL) { slice_cache = NULL; interp->slice_cache = NULL; PyObject_GC_Del(obj); } } Expand All @@ -116,10 +113,11 @@ void _PySlice_Fini(void) PyObject * PySlice_New(PyObject *start, PyObject *stop, PyObject *step) { PyInterpreterState *interp = _PyInterpreterState_GET(); PySliceObject *obj; if (slice_cache != NULL) { obj = slice_cache; slice_cache = NULL; if (interp->slice_cache != NULL) { obj = interp->slice_cache; interp->slice_cache = NULL; _Py_NewReference((PyObject *)obj); } else { obj = PyObject_GC_New(PySliceObject, &PySlice_Type); Expand Down Expand Up @@ -324,14 +322,17 @@ Create a slice object. This is used for extended slicing (e.g. a[0:10:2])."); static void slice_dealloc(PySliceObject *r) { PyInterpreterState *interp = _PyInterpreterState_GET(); _PyObject_GC_UNTRACK(r); Py_DECREF(r->step); Py_DECREF(r->start); Py_DECREF(r->stop); if (slice_cache == NULL) slice_cache = r; else if (interp->slice_cache == NULL) { interp->slice_cache = r; } else { PyObject_GC_Del(r); } }
static PyObject * Expand Down