o %h @sddlmZddlmZddlmZmZmZmZm Z m Z ddl m Z eGdddZ GdddZeZd ed eegeffd d Zd eded efddZe de dZded efddZdS)) dataclass)wraps)AnyCallableIteratorListTypeTypeVar) EventEmitterc@seZdZUeed<eed<dS)HandlereventmethodN)__name__ __module__ __qualname__str__annotations__rrr.decorator)r)r r%rr$ronsr&rr cs tdtffdd }|S)Nrcsg|Ri|Srr)argskwargsr rrrbound-sz_bind..bound)rr)rr r*rr)r_bind,sr+Cls)r*clsc sJttt|jt|jdtdtdtddffdd }||_|S)aQ Configure an evented class. Evented classes are classes which use an EventEmitter to call instance methods during runtime. To achieve this without this helper, you would instantiate an `EventEmitter` in the `__init__` method and then call `event_emitter.on` for every method on `self`. This decorator and the `on` function help make things look a little nicer by defining the event handler on the method in the class and then adding the `__init__` hook in a wrapper: ```py from pyee.cls import evented, on @evented class Evented: @on("event") def event_handler(self, *args, **kwargs): print(self, args, kwargs) evented_obj = Evented() evented_obj.event_emitter.emit( "event", "hello world", numbers=[1, 2, 3] ) ``` The `__init__` wrapper will create a `self.event_emitter: EventEmitter` automatically but you can also define your own event_emitter inside your class's unwrapped `__init__` method. For example, to use this decorator with a `TwistedEventEmitter`:: ```py @evented class Evented: def __init__(self): self.event_emitter = TwistedEventEmitter() @on("event") async def event_handler(self, *args, **kwargs): await self.some_async_action(*args, **kwargs) ``` rr'r(rNcsN|g|Ri|t|dst|_D]}|j|jt||jqdS)N event_emitter)hasattrr r.r&r r+r )rr'r(hhandlersog_initrrinitis  zevented..init)listrr#rrr)r-r4rr1revented7s-"r6N) dataclassesr functoolsrtypingrrrrrr pyeer r rrrr&r+r,r6rrrrs