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decorators.py
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decorators.py
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from bases import binding, wrapper
def call(*args, **kwargs):
return args, kwargs
class sender(wrapper):
def __init__(self, *args):
wrapper.__init__(self, *args)
self.receivers = set()
def __call__(self, *args, **kwargs):
call = self.binding.func(*args, **kwargs)
if call is None: return
args, kwargs = call
for receiver in self.receivers:
receiver(*args, **kwargs)
def __rshift__(self, target):
self.receivers.add(target)
target.senders.add(self)
return target
def __floordiv__(self, target):
self.receivers.remove(target)
target.senders.remove(self)
return target
class receiver(wrapper):
def __init__(self, *args):
wrapper.__init__(self, *args)
self.senders = set()
class messenger(sender, receiver):
def __init__(self, *args):
sender.__init__(self, *args)
receiver.__init__(self, *args)