[Mono-dev] CS0411 error with nullable enum

[Gladish, Jacob]

This compiled fine for me using 2.4.2.1

using System;
using System.Collections.Generic;

namespace Test
{
   public enum Enum
   {
      One,
      Two
   }

   class CompilerTest
   {

      public static void Main(string[] s) {
         ThisDoesNotWork();
      }

      protected static int DoSomething<T>(string s, T t, ref T t2)
      {
         Console.WriteLine("s={0}", s);
         Console.WriteLine("t={0}", t.ToString());
         Console.WriteLine("t2={0}", t2.ToString());

         t2 = default(T);

         return 0;
      }

      // .NET 3.5 infers Enum from T, Mono is confused
      public static void ThisDoesNotWork()
      {
         // Nullable does not work
         Enum? e = Enum.One;
         DoSomething("abc", Enum.Two, ref e);
      }

      public static void ThisWorksFine()
      {
         Enum e = Enum.Two;
         DoSomething("abc", Enum.Two, ref e);
         Console.WriteLine("e={0}", e.ToString());
      }
   }
}

________________________________
From: mono-devel-list-bounces at lists.ximian.com [mailto:mono-devel-list-bounces at lists.ximian.com] On Behalf Of Tom Philpot
Sent: Tuesday, July 21, 2009 12:30 AM
To: mono-devel-list at ximian.com
Subject: [Mono-dev] CS0411 error with nullable enum

One more generics error for you all. The following compiles on Windows .NET, but Mono seems to have issues. Again, this is compiling against SVN HEAD. I'll file a Bugzilla report in the morning.

Tom


using System;
using System.Collections.Generic;

namespace Test
{
    public enum Enum
    {
        One,
        Two,
    }

    class CompilerTest
    {
        protected static int DoSomething<T>(string s, T t, ref T t2)
        {
            return 0;
        }

        // .NET 3.5 infers Enum from T, Mono is confused
        public static void ThisDoesNotWork()
        {
            // Nullable does not work
            Enum? e = Enum.One;
            DoSomething("abc", Enum.Two, ref e);
        }

        public static void ThisWorksFine()
        {
            Enum e = Enum.One;
            DoSomething("abc", Enum.Two, ref e);
        }
    }
}

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