Can C# Reflection Access and Modify Method Code?

Can C# reflection reveal method code?

The C# Reflection API, while capable of providing deep insight into assembly type information, has limitations in inspecting method code.

Short answer:

Reflection (System.Reflection) does not allow direct access to method code. It focuses on metadata and does not include underlying data information such as the IL flow representation of the code.

Detailed answer:

Although reflection cannot retrieve method code, the ILGenerator class of System.Reflection.Emit provides the ability to emit IL. Additionally, MethodInfo.GetMethodBody() can retrieve the binary IL stream, but this is generally not useful by itself.

External libraries like Cecil provide more comprehensive functionality for manipulating method code, including reading, modifying, adding, and deleting.

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