mcs/tests/gtest-etree-07.cs

   1 // Compiler options: -unsafe
   2
   3 using System;
   4 using System.Linq.Expressions;
   5
   6 delegate void EmptyDelegate ();
   7 unsafe delegate int* UnsafeDelegate ();
   8
   9 class C
  10 {
  11         static int i;
  12
  13         static void Test ()
  14         {
  15                 i += 9;
  16         }
  17
  18         static unsafe int* Foo ()
  19         {
  20                 return (int*)1;
  21         }
  22
  23         void M ()
  24         {
  25         }
  26
  27         int TestInstance ()
  28         {
  29                 Expression<Func<EmptyDelegate>> e = () => M;
  30                 if (e.Body.ToString () != "Convert(Void M().CreateDelegate(EmptyDelegate, value(C)))")
  31                         return 1;
  32
  33                 e.Compile () ();
  34
  35                 Expression<Func<C, EmptyDelegate>> e2 = (l) => l.M;
  36                 if (e2.Body.ToString () != "Convert(Void M().CreateDelegate(EmptyDelegate, l))")
  37                         return 2;
  38
  39                 e2.Compile () (this);
  40                 return 0;
  41         }
  42
  43         public static int Main ()
  44         {
  45                 Expression<Func<EmptyDelegate>> e = () => new EmptyDelegate (Test);
  46                 if (e.Body.ToString () != "Convert(Void Test().CreateDelegate(EmptyDelegate, null))")
  47                         return 1;
  48
  49                 var v = e.Compile ();
  50                 v.Invoke ()();
  51
  52                 if (i != 9)
  53                         return 2;
  54
  55                 Expression<Func<EmptyDelegate>> e2 = () => Test;
  56                 if (e2.Body.ToString () != "Convert(Void Test().CreateDelegate(EmptyDelegate, null))")
  57                         return 3;
  58
  59                 var v2 = e2.Compile ();
  60                 v2.Invoke ()();
  61
  62                 if (i != 18)
  63                         return 4;
  64
  65                 unsafe {
  66                         Expression<Func<UnsafeDelegate>> e3 = () => new UnsafeDelegate (Foo);
  67                         if (e3.Body.ToString () != "Convert(Int32* Foo().CreateDelegate(UnsafeDelegate, null))")
  68                                 return 5;
  69
  70                         var v3 = e3.Compile ();
  71                         if (v3.Invoke ()() != (int*)1)
  72                                 return 6;
  73                 }
  74
  75                 if (new C ().TestInstance () != 0)
  76                         return 7;
  77
  78                 Console.WriteLine ("OK");
  79                 return 0;
  80         }
  81 }
  82