rbaumbach/Swizzlean — pull request #2 by estromlund (2013-09-19 05:35:43+00:00)
Title: Throw exception if swizzled class or instance method doesn't exist

Throw a "Method Not Found" exception if RuntimeUtils returns NULL for either `getInstanceMethodWithClass:selector:` or `getClassMethodWithClass:selector:`. This will alert the developer immediately that the Method he/she thinks is swizzled is not, in fact, swizzled. This is often due to using `swizzleClassMethod...` on an instance method, and vice versa.

Cawww.