def _connect_signal(self, receiver, sender, weak, dispatch_uid):
assert callable(receiver), 'Signal receivers must be callable'
if not fun_accepts_kwargs(receiver):
raise ValueError(
'Signal receiver must accept keyword arguments.')
if isinstance(sender, PromiseProxy):
sender.__then__(
self._connect_proxy, receiver, sender, weak, dispatch_uid,
)
return receiver
lookup_key = _make_lookup_key(receiver, sender, dispatch_uid)
if weak:
ref, receiver_object = _boundmethod_safe_weakref(receiver)
if PY3:
receiver = ref(receiver)
weakref.finalize(receiver_object, self._remove_receiver)
else:
receiver = ref(receiver, self._remove_receiver)
with self.lock:
self._clear_dead_receivers()
for r_key, _ in self.receivers:
if r_key == lookup_key:
break
else:
self.receivers.append((lookup_key, receiver))
self.sender_receivers_cache.clear()
return receiver
def _connect_signal(self, receiver, sender, weak, dispatch_uid):
assert callable(receiver), 'Signal receivers must be callable'
if not fun_accepts_kwargs(receiver):
raise ValueError(
'Signal receiver must accept keyword arguments.')
if isinstance(sender, PromiseProxy):
sender.__then__(
self._connect_proxy, receiver, sender, weak, dispatch_uid,
)
return receiver
lookup_key = _make_lookup_key(receiver, sender, dispatch_uid)
if weak:
ref, receiver_object = _boundmethod_safe_weakref(receiver)
if PY3:
receiver = ref(receiver)
weakref.finalize(receiver_object, self._remove_receiver)
else:
receiver = ref(receiver, self._remove_receiver)
with self.lock:
self._clear_dead_receivers()
for r_key, _ in self.receivers:
if r_key == lookup_key:
break
else:
self.receivers.append((lookup_key, receiver))
self.sender_receivers_cache.clear()
return receiver
def _connect_signal(self, receiver, sender, weak, dispatch_uid):
assert callable(receiver), 'Signal receivers must be callable'
if not fun_accepts_kwargs(receiver):
raise ValueError('Signal receiver must accept keyword arguments.')
if isinstance(sender, PromiseProxy):
sender.__then__(
self._connect_proxy,
receiver,
sender,
weak,
dispatch_uid,
)
return receiver
if dispatch_uid:
lookup_key = (dispatch_uid, _make_id(sender))
else:
lookup_key = (_make_id(receiver), _make_id(sender))
if weak:
ref = weakref.ref
receiver_object = receiver
# Check for bound methods
try:
receiver.__self__
receiver.__func__
except AttributeError:
pass
else:
ref = WeakMethod
receiver_object = receiver.__self__
if PY3:
receiver = ref(receiver)
weakref.finalize(receiver_object, self._remove_receiver)
else:
receiver = ref(receiver, self._remove_receiver)
with self.lock:
self._clear_dead_receivers()
for r_key, _ in self.receivers:
if r_key == lookup_key:
break
else:
self.receivers.append((lookup_key, receiver))
self.sender_receivers_cache.clear()
return receiver
def _connect_signal(self, receiver, sender, weak, dispatch_uid):
assert callable(receiver), 'Signal receivers must be callable'
if not fun_accepts_kwargs(receiver):
raise ValueError(
'Signal receiver must accept keyword arguments.')
if isinstance(sender, PromiseProxy):
sender.__then__(
self._connect_proxy, receiver, sender, weak, dispatch_uid,
)
return receiver
if dispatch_uid:
lookup_key = (dispatch_uid, _make_id(sender))
else:
lookup_key = (_make_id(receiver), _make_id(sender))
if weak:
ref = weakref.ref
receiver_object = receiver
# Check for bound methods
try:
receiver.__self__
receiver.__func__
except AttributeError:
pass
else:
ref = WeakMethod
receiver_object = receiver.__self__
if PY3:
receiver = ref(receiver)
weakref.finalize(receiver_object, self._remove_receiver)
else:
receiver = ref(receiver, self._remove_receiver)
with self.lock:
self._clear_dead_receivers()
for r_key, _ in self.receivers:
if r_key == lookup_key:
break
else:
self.receivers.append((lookup_key, receiver))
self.sender_receivers_cache.clear()
return receiver
def test_rejects(self, fun):
assert not fun_accepts_kwargs(fun)
def test_accepts(self, fun):
assert fun_accepts_kwargs(fun)
