C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine("Hello World");
		
		dynamic h = new QH();
		Func<Q, int> d = h.Handle;
	}
}
interface IQuery<T> {}
interface IQueryHandler<TQuery, T>
	where TQuery : IQuery<T>
{
	T Handle(TQuery query);
}
class Q : IQuery<int> {}
class QH : IQueryHandler<Q, int>
{
    public int Handle(Q query)
	{
	    return 5;
	}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        Console.WriteLine("Hello World");
        
        dynamic h = new QH();
        Func<Q, int> d = h.Handle;
    }
}
interface IQuery<T> {}
interface IQueryHandler<TQuery, T>
    where TQuery : IQuery<T>
{
    T Handle(TQuery query);
}
class Q : IQuery<int> {}
class QH : IQueryHandler<Q, int>
{
    public int Handle(Q query)
    {
        return 5;
    }
}

Hello World
Run-time exception (line 10): Attempt by method 'System.Runtime.CompilerServices.CallSite`1<System.__Canon>.MakeUpdateDelegate()' to access method 'System.Dynamic.UpdateDelegates.NoMatch1<System.Object,System.Func`2<Q,System.Int32>>(System.Runtime.CompilerServices.CallSite, System.Object)' failed.

Stack Trace:

[System.MethodAccessException: Attempt by method 'System.Runtime.CompilerServices.CallSite`1<System.__Canon>.MakeUpdateDelegate()' to access method 'System.Dynamic.UpdateDelegates.NoMatch1<System.Object,System.Func`2<Q,System.Int32>>(System.Runtime.CompilerServices.CallSite, System.Object)' failed.]
   at System.Delegate.BindToMethodInfo(Object target, IRuntimeMethodInfo method, RuntimeType methodType, DelegateBindingFlags flags)
   at System.Delegate.CreateDelegateInternal(RuntimeType rtType, RuntimeMethodInfo rtMethod, Object firstArgument, DelegateBindingFlags flags, StackCrawlMark& stackMark)
   at System.Delegate.CreateDelegate(Type type, MethodInfo method, Boolean throwOnBindFailure)
   at System.Delegate.CreateDelegate(Type type, MethodInfo method)
   at System.Runtime.CompilerServices.CallSite`1.MakeUpdateDelegate()
   at System.Runtime.CompilerServices.CallSite`1.GetUpdateDelegate(T& addr)
   at System.Runtime.CompilerServices.CallSite`1.Create(CallSiteBinder binder)
   at Program.Main() :line 10

Last Run:	10:21:53 am
Compile:	0.122s
Execute:	0.064s
Memory:	355.55kb
CPU:	0.094s

View IL Code