mcs/tests/test-pattern-05.cs

   1 // Compiler options: -langversion:experimental
   2
   3 using System;
   4
   5 class RecursiveNamedPattern
   6 {
   7         public static int Main ()
   8         {
   9                 object o = new C ();
  10                 bool b = o is C (name2: "", name1: -2);
  11                 if (b)
  12                         return 1;
  13
  14                 b = o is C (name2: "n2", name1: -2);
  15                 if (!b)
  16                         return 2;
  17
  18                 b = o is C ();
  19                 if (b)
  20                         return 3;
  21
  22                 return 0;
  23         }
  24 }
  25
  26 class C
  27 {
  28         public static bool operator is (C c, out long name1, out string name2)
  29         {
  30                 name1 = -2;
  31                 name2 = "n2";
  32                 return true;
  33         }
  34
  35         public static bool operator is (C c)
  36         {
  37                 return false;
  38         }
  39 }