How can I programmatically (using reflection?) Change the body of a method and save my changes back to disk

Question

I can get the method body quite easily using reflection

Type type = assembly.GetType("Lorem.Ipsum.Dolor.Sit");
MethodInfo methodInfo = type.GetMethod("Amet");
MethodBody methodBody = methodInfo.GetMethodBody();

How can I programmatically change the body of a method and save my changes back to disk?

Answer 1

AFAIK, you cannot.

With reflection, you changed the object in memory that was created from a binary file loaded and optimized by the CLR at runtime.

EDIT

This question contains additional information about this.

Modify existing .NET collections

Answer 2

Friend is a good lib for this: https://bitbucket.org/0xd4d/dnlib

, Mono.Cecil.

Answer 3

you cannot do this without third-party libraries. take a look at: http://www.mono-project.com/Cecil