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A simple Event Emitter for swift (use EmitterKit for something more robust)
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class Event <T:Any> { | |
var handlers = Array<(T) -> Void>() | |
func listen(handler: (T) -> Void) { | |
handlers.append(handler) | |
} | |
func emit(object: T) { | |
for handler in handlers { | |
handler(object) | |
} | |
} | |
} |
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let didSomething = Event<String>() | |
didSomething.listen { str in | |
println(str) | |
} | |
didSomething.emit("Did it!") | |
# => "Did it!" | |
let tupleEvent = Event<(String, Int)>() | |
tupleEvent.listen { (str, num) in | |
doSomethingWith(str, num) | |
} | |
tupleEvent.emit("Example", 10) |
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