Count number of objects of class type within class method

Question

How can I count the number of objects of a class type within a method of that class? For that matter, how to do it outside of a class without adding the objects to a list?

Answer 1

I'm not exactly sure what you mean. But it might be this:

MethodInfo methodInfo = ...;
MethodBody body = methodInfo.GetMethodBody();
int count = body.LocalVariables.Count(variable => variable.LocalType == typeof(DesiredType));

Another possibility: The profiler in Team Suite (and maybe others) can tell you:

• The number of objects of type T allocated in every method
• The number of bytes allocated in each method

Edit: Due to the lack of a "dup n" or "swap n, n+1" IL instruction, the compiler is forced to generate locals you might not expect (ones you didn't explicitly declare). The compiler is also free to remove locals where possible when optimization is on.