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using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;
public class Tests
{
public static int Main (String[] args) {
AssemblyName assemblyName = new AssemblyName ();
assemblyName.Name = "foo";
AssemblyBuilder assembly =
Thread.GetDomain ().DefineDynamicAssembly (
assemblyName, AssemblyBuilderAccess.RunAndSave);
ModuleBuilder module = assembly.DefineDynamicModule ("foo.dll");
TypeBuilder if_tb = module.DefineType ("IF`1", TypeAttributes.Public|TypeAttributes.Abstract|TypeAttributes.Interface);
GenericTypeParameterBuilder [] typeParams = if_tb.DefineGenericParameters ("T");
MethodBuilder if_mb = if_tb.DefineMethod ("foo", MethodAttributes.Public|MethodAttributes.Abstract|MethodAttributes.Virtual, typeParams [0], Type.EmptyTypes);
MethodBuilder if_mb2 = if_tb.DefineMethod ("foo2", MethodAttributes.Public|MethodAttributes.Abstract|MethodAttributes.Virtual, typeParams [0], Type.EmptyTypes);
TypeBuilder tb = module.DefineType ("Foo`1", TypeAttributes.Public, typeof (object));
GenericTypeParameterBuilder [] tbTypeParams = tb.DefineGenericParameters ("T");
Type inst = if_tb.MakeGenericType (tbTypeParams [0]);
tb.AddInterfaceImplementation (inst);
var mb0 = tb.DefineMethod ("foo", MethodAttributes.Public|MethodAttributes.Virtual, typeParams [0], Type.EmptyTypes);
mb0.GetILGenerator ().Emit (OpCodes.Ret);
var mb = tb.DefineMethod ("__foo", MethodAttributes.Public|MethodAttributes.Virtual, typeParams [0],Type.EmptyTypes);
var gen = mb.GetILGenerator ();
var local = gen.DeclareLocal (typeParams [0], false);
gen.Emit (OpCodes.Ldloca, local);
gen.Emit (OpCodes.Initobj, typeParams [0]);
gen.Emit (OpCodes.Ldloc, local);
gen.Emit (OpCodes.Ret);
tb.DefineMethodOverride (mb, TypeBuilder.GetMethod (inst, if_mb));
tb.DefineMethodOverride (mb, TypeBuilder.GetMethod (inst, if_mb2));
var k = if_tb.CreateType ();
Type t = tb.CreateType ();
object obj = Activator.CreateInstance (t.MakeGenericType (new Type [] { typeof (string)}));
var info = k.MakeGenericType (new Type [] { typeof (string) }).GetMethod ("foo");
var res = info.Invoke (obj, null);
return res == null ? 0 : 1;
}
}
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