mcs/tests/dtest-017.cs

   1 using System;
   2 using System.Collections.Generic;
   3
   4 class B<U>
   5 {
   6 }
   7
   8 class C<T> : B<T>
   9 {
  10 }
  11
  12 interface I<T> : IA<T>
  13 {
  14 }
  15
  16 interface IA<U>
  17 {
  18 }
  19
  20 struct S<T>
  21 {
  22 }
  23
  24 delegate dynamic D (dynamic d);
  25
  26 class DynamicAssignments
  27 {
  28         static void Foo (IA<object> o)
  29         {
  30         }
  31
  32         public static int Main ()
  33         {
  34                 dynamic d1 = null;
  35                 dynamic d2 = null;
  36                 d1 = d2;
  37                 d2 = d1;
  38
  39                 B<object> g1 = null;
  40                 B<dynamic> g2 = null;
  41                 g1 = g2;
  42                 g2 = g1;
  43
  44                 B<B<object>> g_n1 = null;
  45                 B<B<dynamic>> g_n2 = null;
  46                 g_n1 = g_n2;
  47                 g_n2 = g_n1;
  48
  49                 object[] o = null;
  50                 dynamic[] d = o;
  51
  52                 C<object> a = null;
  53                 B<dynamic> b = a;
  54                 a = (C<object>)b;
  55                 a = (C<dynamic>)b;
  56
  57                 I<object> io = null;
  58                 IA<dynamic> id = io;
  59
  60                 IA<object> ia_o = null;
  61                 IA<dynamic> ia_d = ia_o;
  62
  63                 S<dynamic> s_d = new S<dynamic> ();
  64                 S<object> s_o = s_d;
  65                 S<object>? s_o_n = s_d;
  66
  67                 D del = delegate (object del_arg) {
  68                          return (object) null;
  69                 };
  70
  71                 Action<IA<dynamic>> del2 = Foo;
  72
  73                 Action<object> del31 = null;
  74                 Action<dynamic> del32 = del31;
  75
  76                 I<dynamic>[] a20 = null;
  77                 I<object>[] b20 = a20;
  78
  79                 dynamic[] d40 = null;
  80                 IEnumerable<object> d41 = d40;
  81
  82                 return 0;
  83         }
  84 }