Instructing a generic to return an object of a dynamic type

Question

This question is sort of a follow-up to my original question here.

Let\'s say that I have the following generic class (simplifying! ^_^):

class CasterCla         


        

Answer 1

Just pass any type to ObjectCreateMethod, and you'll get a dynamic method handler, which you can later use to cast a generic object into a specific type, invoking CreateInstance.

ObjectCreateMethod _MyDynamicMethod = new ObjectCreateMethod(info.PropertyType);
object _MyNewEntity = _MyDynamicMethod.CreateInstance();

Call this class:

using System.Reflection;
using System.Reflection.Emit;

public class ObjectCreateMethod
{
    delegate object MethodInvoker();
    MethodInvoker methodHandler = null;

    public ObjectCreateMethod(Type type)
    {
        CreateMethod(type.GetConstructor(Type.EmptyTypes));
    }

    public ObjectCreateMethod(ConstructorInfo target)
    {
        CreateMethod(target);
    }

    void CreateMethod(ConstructorInfo target)
    {
        DynamicMethod dynamic = new DynamicMethod(string.Empty,typeof(object),new Type[0], target.DeclaringType);
        ILGenerator il = dynamic.GetILGenerator();
        il.DeclareLocal(target.DeclaringType);
        il.Emit(OpCodes.Newobj, target);
        il.Emit(OpCodes.Stloc_0);
        il.Emit(OpCodes.Ldloc_0);
        il.Emit(OpCodes.Ret);

        methodHandler = (MethodInvoker)dynamic.CreateDelegate(typeof(MethodInvoker));
    }

    public object CreateInstance()
    {
        return methodHandler();
    }
}