Function PyObject_IS_GC

python27-sys/src/objimpl.rs:57–63

(o: *mut PyObject)

/// Test if an object has a GC head
#[inline(always)]
pub unsafe fn PyObject_IS_GC(o: *mut PyObject) -> c_int {
    (PyType_IS_GC(Py_TYPE(o)) != 0
        && match (*Py_TYPE(o)).tp_is_gc {
            Some(tp_is_gc) => tp_is_gc(o) != 0,
            None => true,
        }) as c_int
}

/* Test if a type supports weak references */
#[inline(always)]