mono/tests/verifier/valid_mvar_is_transitive_compatibility.cs

   1 using System;
   2 using System.Reflection;
   3 using System.Collections.Generic;
   4
   5
   6 class Test
   7 {
   8     static U[] Foo<T, U> (T[] arg) where T : class, U
   9     {
  10         return arg;
  11     }
  12
  13     public static IEnumerable<U> Foo2<T, U> (IEnumerable<T> arg) where T : class, U
  14     {
  15         return arg;
  16     }
  17
  18     static IEnumerable<U[]> Foo3<T, U> (IEnumerable<T[]> arg) where T : class, U
  19     {
  20         return arg;
  21     }
  22
  23     static int Main ()
  24     {
  25                 var m = typeof (Test).GetMethod ("Foo2");
  26                 var gp = m.GetGenericArguments ();
  27                 var t = gp[0];
  28                 var u = gp[1];
  29                 Console.WriteLine (t);
  30                 Console.WriteLine (u);
  31                 Console.WriteLine (t.IsAssignableFrom (u));
  32                 Console.WriteLine (u.IsAssignableFrom (t));
  33         return 0;
  34     }
  35 }