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hash function for property-rna. eg. hash(bpy.context.object.modifiers)

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This commit is contained in:
Campbell Barton 2010-04-25 21:13:42 +00:00
parent 61eb217294
commit 64359c9abc
1 changed files with 22 additions and 2 deletions
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24
source/blender/python/intern/bpy_rna.c
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@ -431,7 +431,27 @@ static PyObject *pyrna_prop_repr( BPy_PropertyRNA *self )
static long pyrna_struct_hash( BPy_StructRNA *self )
{
return (long)self->ptr.data;
return _Py_HashPointer(self->ptr.data);
}
/* from python's meth_hash v3.1.2 */
static long pyrna_prop_hash(BPy_PropertyRNA *self)
{
long x,y;
if (self->ptr.data == NULL)
x = 0;
else {
x = _Py_HashPointer(self->ptr.data);
if (x == -1)
return -1;
}
y = _Py_HashPointer((void*)(self->prop));
if (y == -1)
return -1;
x ^= y;
if (x == -1)
x = -2;
return x;
}
/* use our own dealloc so we can free a property if we use one */
@ -3490,7 +3510,7 @@ PyTypeObject pyrna_prop_Type = {
/* More standard operations (here for binary compatibility) */
NULL, /* hashfunc tp_hash; */
( hashfunc ) pyrna_prop_hash, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */