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Asked: 2026-06-18T01:22:09+00:00

let’s say I have a selector that may be assigned to several different methods

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let’s say I have a selector that may be assigned to several different methods – each one has a different return value.

Is there a way to check what is the return value of the method the selector is holding before calling “performSelector”?

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  1. Editorial Team

    Is there a way to check what is the return value of the method the selector is holding before calling “performSelector”?

    Value? No. Type? Yap. It seems that you want the return type of the method (or your question wouldn’t make sense).

    Method m = class_getInstanceMethod([SomeClass class], @selector(foo:bar:));
char type[128];
method_getReturnType(m, type, sizeof(type));

    Then you can examine the returned type string in type. For example, "v" means void (google the full list).

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