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by tinus_hn
1848 days ago
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If you write a message send in Objective-C, like [object doSomething], behind the scenes the compiler translates this to a call to the objc_msgSend function in the Objective-C runtime library. This function looks up what code needs to run, taking into account inheritance and all the other dynamic features and runs it. So this function runs really often and is an important target for optimization. |
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