tests/gtest-274.cs

   1 using System;
   2
   3 public struct Foo
   4 {
   5         public readonly long Value;
   6
   7         public Foo (long value)
   8         {
   9                 this.Value = value;
  10         }
  11
  12         public static implicit operator Foo (long value)
  13         {
  14                 return new Foo (value);
  15         }
  16 }
  17
  18 public struct Bar
  19 {
  20         public readonly Foo Foo;
  21
  22         public Bar (Foo foo)
  23         {
  24                 this.Foo = foo;
  25         }
  26
  27         public static implicit operator Bar (Foo foo)
  28         {
  29                 return new Bar (foo);
  30         }
  31 }
  32
  33 public struct Baz
  34 {
  35         public readonly Foo Foo;
  36
  37         public Baz (Foo foo)
  38         {
  39                 this.Foo = foo;
  40         }
  41
  42         public static explicit operator Baz (Foo foo)
  43         {
  44                 return new Baz (foo);
  45         }
  46 }
  47
  48 class X
  49 {
  50         static void Main ()
  51         {
  52                 int a = 3;
  53                 int? b = a;
  54                 int? b0 = null;
  55
  56                 Foo? f1 = a;
  57                 Foo? f2 = b;
  58                 Foo? f3 = b0;
  59                 Foo f4 = (Foo) b;
  60
  61                 Bar? b1 = f1;
  62                 Bar? b2 = f2;
  63                 Bar? b3 = f3;
  64                 Bar b4 = (Bar) f2;
  65
  66                 Baz? z1 = (Baz?) f1;
  67                 Baz? z2 = (Baz?) f2;
  68                 Baz? z3 = (Baz?) f3;
  69                 Baz z4 = (Baz) f2;
  70         }
  71 }