Why is there a warning? Can I ignore it?

I'm getting the following warning by the ARC compiler

performSelector may cause a leak because its selector is unknown

This is my code:

[self performSelector:config.selector];

Why do I get this warning? I understand the compiler can't check if the selector exists or not, but why would that cause a leak? And how can I change my code so that I don't get this warning anymore?

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As @rmaddy points out, this is a duplicate of performSelector may cause a leak because its selector is unknown

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There is a better solution than either suppressing the warning or playing other games.

Instead of using the SEL , use callback blocks instead.

Ie instead of config.selector , go for config.handlerBlock(...) .

That way, you have full type safety throughout, nothing gets in the way of using ARC, and no #pragma dance to disable warnings temporarily or anything.

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