Reflection.Emit question

[neodatatype]

Hi all,

 

I'm playing with the Reflection.Emit, and all was going on when I got a little stop:

 

I created my AssemblyName and my TypeBuilder.

I like to do a myMethodBuilder.GetILGenerator().DeclareLocal() of the type I'm being building...

 

I explain :)

 

I get my TypeBuilder (for "MyType" class), I get the TypeBuilder.DefineMethod().

Within thid MethodBuilder (before the myTypeBuilder.CreateType()) I whant to declare a variable of "MyType" but I cannot get the System.Type.GetType("MyType")!!!

 

In C# it would be something like

 

class MyType {
   public void MyMethod () {
       MyType x;
   }
}

 

Can I create this class via Reflection.Emit?

 

I hope I was clear :P

[Volte]

Use ModuleBuilder.GetType (use the name of the ModuleBuilder you're using to define the types) to retrieve unfinished types. You can't use the regular GetType keyword for that.

[neodatatype]

Use ModuleBuilder.GetType (use the name of the ModuleBuilder you're using to define the types) to retrieve unfinished types.

 

Yes, I thinked this but I could not understand how to do it.

Using the ModuleBuilder works well, thanks :)

 

Now the problem is moved a step over :)

 

I can get the

 

myType = ModuleBuilder.GetType("MyType"), but I cannot do this:

 

myILGenerator.Emit(OpCodes.Newobj, myType.GetConstructor(parameterTypes));

 

parameterTypes is defined as

 

System.Type[] parameterTypes = System.Type.EmptyTypes;

 

since the constructor does not accept arguments, but the Newobj throw the System.NotSupportedException (not documented for GetConstructor), with a description like "The called member is not supported in a dynamic module" (this is translated).

 

Some ideas?

 

Thank you again :)

[Volte]

Try calling it like this:

myType.GetConstructor(BindingFlags.Instance | BindingFlags.Public, null, Type.EmptyTypes, null);

You may need to specify the BindingFlags.

[neodatatype]

Try calling it like this:

myType.GetConstructor(BindingFlags.Instance | BindingFlags.Public, null, Type.EmptyTypes, null);

You may need to specify the BindingFlags.

 

No way :(

 

I cannot do a class like

 

class Class1
{
   public void Test()
   {
       object x;
       x = new Class1();
   }
}

 

(IL)
       .method public hidebysig instance void Test() cil managed
       {
           .maxstack 1
           .locals (object)

     IL_0000:  newobj     instance void ConsoleApplication3.Class1::.ctor()
     IL_0005:  stloc.0
     IL_0006:  ret
       }

 

the myType.GetConstructor(parameterTypes) still throw the exception...

 

It Seems that I cannot call the GetConstructor with a type defined in a

dynamic module... but if so how can I generate code like the above?