tests/gtest-variance-10.cs

   1 // Compiler options: -langversion:future
   2
   3 using System;
   4
   5 public interface I<out T>
   6 {
   7         int Count{ get; }
   8 }
   9
  10 class Foo {}
  11
  12 public class Test : I<string>, I<Foo>
  13 {
  14         int I<string>.Count
  15         {
  16                 get { return 1; }
  17         }
  18
  19         int I<Foo>.Count
  20         {
  21                 get { return 2; }
  22         }
  23 }
  24
  25 public static class Program
  26 {
  27         static int Main ()
  28         {
  29                 var col = new Test();
  30
  31                 var test = (I<object>)(object) col;
  32                 if (test.Count != 1)
  33                         return 1;
  34
  35                 return 0;
  36         }
  37 }