c# - How to detect source code changes in async method body -

i'm trying detect during runtime if source code of method of class has been changed. retrieve method body (il), hash md5 , store in database. next time check method, can compare hashes.

public class changed {     public string somevalue { get; set; }      public string getsomevalue()     {         return somevalue + "add something";     }      public async task<string> getsomevalueasync()     {         return await task.fromresult(somevalue + "add something");     } } 

i'm using mono.cecil retrieve method bodies:

var module = moduledefinition.readmodule("methodbodychangedetector.exe");  var typedefinition = module.types.first(t => t.fullname == typeof(changed).fullname);  // retrieve method bodies (il instructions string) var methodinstructions = typedefinition.methods     .where(m => m.hasbody)     .selectmany(x => x.body.instructions)     .select(i => i.tostring());  var hash = md5(string.join("", methodinstructions)); 

this works great, except methods marked async. whenever add code somevalue method, hash changes. whenever add code getsomevalueasync method, hash not change. know how detect if method body of async method has changed?

async methods, iterator methods, compiled nested helper class represents state machine. entire helper class (use ilspy deactivated option decompile async methods see result example) used async method. changes method happen in generated method of helper class instead of original method.