/usr/lib/python3/dist-packages/Cython/Includes/cpython/weakref.pxd is in cython3 0.25.2-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | from .object cimport PyObject
cdef extern from "Python.h":
bint PyWeakref_Check(object ob)
# Return true if ob is either a reference or proxy object.
bint PyWeakref_CheckRef(object ob)
# Return true if ob is a reference object.
bint PyWeakref_CheckProxy(ob)
# Return true if *ob* is a proxy object.
object PyWeakref_NewRef(object ob, object callback)
# Return a weak reference object for the object ob. This will
# always return a new reference, but is not guaranteed to create a
# new object; an existing reference object may be returned. The
# second parameter, callback, can be a callable object that
# receives notification when ob is garbage collected; it should
# accept a single parameter, which will be the weak reference
# object itself. callback may also be None or NULL. If ob is not
# a weakly-referencable object, or if callback is not callable,
# None, or NULL, this will return NULL and raise TypeError.
object PyWeakref_NewProxy(object ob, object callback)
# Return a weak reference proxy object for the object ob. This
# will always return a new reference, but is not guaranteed to
# create a new object; an existing proxy object may be returned.
# The second parameter, callback, can be a callable object that
# receives notification when ob is garbage collected; it should
# accept a single parameter, which will be the weak reference
# object itself. callback may also be None or NULL. If ob is not
# a weakly-referencable object, or if callback is not callable,
# None, or NULL, this will return NULL and raise TypeError.
PyObject* PyWeakref_GetObject(object ref)
# Return the referenced object from a weak reference, ref. If the
# referent is no longer live, returns None.
PyObject* PyWeakref_GET_OBJECT(object ref)
# Similar to PyWeakref_GetObject, but implemented as a macro that
# does no error checking.
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