Find All References of a Method Using Reflection

Question

5.00/5 (8 votes)

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Hi,

I want to find the location of all method calls to a single class at runtime. I'm using reflection, but I cannot find a way to locate where it is being used. For example:

public class Test 
{
   public void Method1()
   { 
     // do something 
   }
   public void Method2()
   {
     Method2();
   }
}

I want to find at runtime Method2 is called by Method1. Is there a way?

I think there should be, as Visual Studio can do it via "Find All References". Thanks.

Posted 14-Jul-10 3:55am

fadime

Updated 28-Sep-17 2:30am

Andrew Rissing

v2

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ankitjoshi24 · Accepted Answer · 2011-05-10T08:11:00

I am not sure if this is exactly what you want. But may be this will help you: -

A test class:

C#

public class TestClass
{
    public void Test()
    {
        Console.WriteLine("Test");
        Console.Write(10);
        DateTime date = DateTime.Now;
        Console.WriteLine(date);
    }
}

Another code to print all the methods used within TextClass.Test()

MethodBase methodBase = typeof(TestClass).GetMethod("Test");
var instructions = MethodBodyReader.GetInstructions(methodBase);

foreach (Instruction instruction in instructions)
{
    MethodInfo methodInfo = instruction.Operand as MethodInfo;

    if(methodInfo != null)
    {
        Type type = methodInfo.DeclaringType;
        ParameterInfo[] parameters = methodInfo.GetParameters();

        Console.WriteLine("{0}.{1}({2});",
            type.FullName,
            methodInfo.Name,
            String.Join(", ", parameters.Select(p => p.ParameterType.FullName + " " + p.Name).ToArray())
        );
    }
}

The output was:

MIDL

System.Console.WriteLine(System.String value);
System.Console.Write(System.Int32 value);
System.DateTime.get_Now();
System.Console.WriteLine(System.Object value);

Hope this helps. Let me know if or not this helped you.

--
AJ

Andrew Rissing · Accepted Answer · 2010-07-14T04:30:00

Solution 1

I would imagine you'd need to parse the method body of the methods you're looking at, see this[^]. It might help you get started.

Btw, if you're doing this within a Visual Studio macro, I believe VS provides some objects that might be of use to doing this without IL parsing.

Posted 14-Jul-10 4:30am

Andrew Rissing

Comments

Nish Nishant 14-Jul-10 11:02am

Reason for my vote of 5
Worth 5!

SKOTAJI 4-May-11 12:54pm

Need to refer this concept. Good to post here !
Voted 5 !