mcs/tests/test-pattern-02.cs

   1 // Compiler options: -langversion:experimental
   2
   3 using System;
   4
   5 enum MyEnum : short
   6 {
   7         V_4 = 4
   8 }
   9
  10 class ConstantPattern
  11 {
  12         static bool Generic<T> (T t) where T : class
  13         {
  14                 return t is default (T);
  15         }
  16
  17         public static int Main ()
  18         {
  19                 bool b4 = false;
  20                 b4 = !b4;
  21                 object o = "x";
  22                 bool r1 = o is "y";
  23                 if (r1)
  24                         return 1;
  25
  26                 r1 = o is "x";
  27                 if (!r1)
  28                         return 2;
  29
  30                 string s = "o";
  31                 if (s is null)
  32                         return 3;
  33
  34                 if (s is "oo")
  35                         return 4;
  36
  37                 if (!(s is "o"))
  38                         return 5;
  39
  40                 int? o3 = 4;
  41                 bool r3 = o3 is null;
  42                 if (r3)
  43                         return 6;
  44
  45                 r3 = o3 is 4;
  46                 if (!r3)
  47                         return 7;
  48
  49                 object o4 = (byte?)255;
  50                 var ggg = o4 is 255;
  51                 if (ggg)
  52                         return 8;
  53
  54                 if (o4 is null)
  55                         return 9;
  56
  57                 object o5 = (double)-255;
  58                 if (o5 is -byte.MaxValue)
  59                         return 10;
  60
  61                 object o6 = MyEnum.V_4;
  62                 bool r4 = o6 is 4;
  63                 if (r4)
  64                         return 11;
  65
  66                 r4 = o6 is MyEnum.V_4;
  67                 if (!r4)
  68                         return 12;
  69
  70                 ConstantPattern o7 = new ConstantPattern ();
  71                 if (!(o7 is ConstantPattern))
  72                         return 13;
  73
  74                 if (!(o7 is object))
  75                         return 14;
  76
  77                 object o8 = true;
  78                 if (o8 is false)
  79                         return 15;
  80
  81                 if (!(o8 is true))
  82                         return 16;
  83
  84                 if (Generic (""))
  85                         return 17;
  86
  87                 if (!Generic<Delegate> (null))
  88                         return 18;
  89
  90                 Console.WriteLine ("ok");
  91                 return 0;
  92         }
  93 }