public Delegate CreateInvoker(Type delegateType)
{
MethodSignature sig = MethodSignature.FromDelegateType(delegateType);
var pTypes = new Type[sig.ParameterTypes.Length + 1];
pTypes[0] = TypeOf <VarArgsDelegate> .TypeID;
sig.ParameterTypes.CopyTo(pTypes, 1);
DynamicMethod dyn = new DynamicMethod("", sig.ReturnType, pTypes, TypeOf <VarAgsDelegateBase <TDelegateBase> > .TypeID);
var il = dyn.GetILGenerator();
for (int i = 0; i < pTypes.Length; i++)
{
il.EmitLdarg(i);
}
il.EmitCall(OpCodes.Callvirt, InvokeMethod, sig.ParameterTypes);
if (sig.ReturnType != typeof(void))
{
if (sig.ReturnType.IsValueType)
{
il.Emit(OpCodes.Unbox_Any, sig.ReturnType);
}
else if (sig.ReturnType != TypeOf <object> .TypeID)
{
il.Emit(OpCodes.Castclass, sig.ReturnType);
}
}
else
{
il.Emit(OpCodes.Pop);
}
il.Emit(OpCodes.Ret);
return(dyn.CreateDelegate(delegateType, this));
}
public static MethodSignature GetDelegateSignature(this Type tDelegate)
{
return(MethodSignature.FromDelegateType(tDelegate));
}