Swap method implementation at runtime in .NET?

Question

How can i change the implementation of a method at runtime from return false; to return true;? I don't have control over the methods implementation as it comes with a third-party library. Any workaround is appreciated. Again: I do not control neither the method itself nor it's callers.

Answer 1

A little more info would help. Can you wrap the library and have others call your wrapper? This might be a great TDD avenue too. Are there interfaces involved you can implement yourself? Again, DI could allow you to swap out implementations.

Answer 2

Try the MethodRental.SwapMethodBody method.

Answer 3

You can intercept the callers of that method and return true instead calling it. Maybe you can post more details.

Answer 4

Please provide more information about your problem. If you only want to switch the boolean result a simple bool result = !MyMethod(); will be enought ;)

Answer 5

Subclass and override. If you can't subclass, use a Decorator pattern.