diff options
Diffstat (limited to 'Include')
| -rw-r--r-- | Include/object.h | 7 | ||||
| -rw-r--r-- | Include/objimpl.h | 4 |
2 files changed, 10 insertions, 1 deletions
diff --git a/Include/object.h b/Include/object.h index 972e05b..2f683eb 100644 --- a/Include/object.h +++ b/Include/object.h @@ -344,11 +344,18 @@ given type object has a specified feature. #define Py_TPFLAGS_HAVE_RICHCOMPARE (1L<<5) +/* Objects which are weakly referencable if their tp_weaklistoffset is >0 */ +/* XXX Should this have the same value as Py_TPFLAGS_HAVE_RICHCOMPARE? + * These both indicate a feature that appeared in the same alpha release. + */ +#define Py_TPFLAGS_HAVE_WEAKREFS (1L<<6) + #define Py_TPFLAGS_DEFAULT ( \ Py_TPFLAGS_HAVE_GETCHARBUFFER | \ Py_TPFLAGS_HAVE_SEQUENCE_IN | \ Py_TPFLAGS_HAVE_INPLACEOPS | \ Py_TPFLAGS_HAVE_RICHCOMPARE | \ + Py_TPFLAGS_HAVE_WEAKREFS | \ 0) #define PyType_HasFeature(t,f) (((t)->tp_flags & (f)) != 0) diff --git a/Include/objimpl.h b/Include/objimpl.h index 93c5b23..9c13e71 100644 --- a/Include/objimpl.h +++ b/Include/objimpl.h @@ -271,7 +271,9 @@ extern DL_IMPORT(void) _PyGC_Dump(PyGC_Head *); #endif /* WITH_CYCLE_GC */ /* Test if a type supports weak references */ -#define PyType_SUPPORTS_WEAKREFS(t) ((t)->tp_weaklistoffset > 0) +#define PyType_SUPPORTS_WEAKREFS(t) \ + (PyType_HasFeature((t), Py_TPFLAGS_HAVE_WEAKREFS) \ + && ((t)->tp_weaklistoffset > 0)) #define PyObject_GET_WEAKREFS_LISTPTR(o) \ ((PyObject **) (((char *) (o)) + (o)->ob_type->tp_weaklistoffset)) |