Determine C# Code size [closed]

Question

I'd like to check how big is the compiled code of some classes (in bytes). I'd like to optimize them for size, but I need to know where to start.

Answer 1

One method will be to get the size of MSIL with Reflection. You will need to loop through all methods, Property setters and getters, and constructors to determine the size of the MSIL. Also, there will be differences in size based on Debug versus Release builds.

using System.Reflection;

int totalSize = 0;

foreach(var mi in typeof(Example).GetMethods(BindingFlags.Public | BindingFlags.NonPublic |BindingFlags.Static | BindingFlags.Instance | BindingFlags.GetProperty | BindingFlags.SetProperty))
{
  MethodInfo mi = typeof(Example).GetMethod("MethodBodyExample");
  MethodBody mb = mi.GetMethodBody();
  totalSize += mb.GetILAsByteArray().Length;
}