CODEWITHSUNDEEP
c#reflectiondelegateslambda
Chris Kooken
Chris Kooken

Reputation: 33880

check C# Action/Lambda/Delegate contains any code/statements

Can anyone tell me if there a way to see if an action contains any code?

Action x = new Action(()=>
             {

             });

should return false, while

Action x = new Action(()=>
             {
                var x = "i am a string" 
             });

should return true.

Perhaps using reflection?

Upvotes: 4

Views: 1438

Answers (1)

grega g
grega g

Reputation: 1089

Maybe this will help:

        Action x = new Action(() =>
        {
            var xx = "i am a string";
        });


        Action x1 = new Action(() =>
        {

        });

        MethodBody mb = x.Method.GetMethodBody();
        MethodBody mb1 = x1.Method.GetMethodBody();

        byte[] b = mb.GetILAsByteArray();
        byte[] b1 = mb1.GetILAsByteArray();

b1 (empty method body) has only 2 bytes, values 0 and 42 meaning nop and return, I think.

Upvotes: 7

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