mcs/tests/test-async-18.cs

   1 // Compiler options: -langversion:future
   2 using System;
   3 using System.Threading.Tasks;
   4 using System.Threading;
   5
   6 class Tester
   7 {
   8         async Task<int> Lambda_1 ()
   9         {
  10                 int res = 1;
  11                 {
  12                         int a = 8;
  13                         Func<int> f = () => a;
  14                         res = await Task.Factory.StartNew (f);
  15                         res += f ();
  16                 }
  17
  18                 return res - 16;
  19         }
  20
  21         async Task<int> Lambda_2 ()
  22         {
  23                 int res = 1;
  24                 {
  25                         int a = 8;
  26                         Func<int> f = () => a + res;
  27                         res = await Task.Factory.StartNew (f);
  28                         res += f ();
  29                 }
  30
  31                 return res - 26;
  32         }
  33
  34         async Task<int> Lambda_3<T> ()
  35         {
  36                 int res = 1;
  37                 {
  38                         int a = 8;
  39                         Func<int> f = () => a;
  40                         res = await Task.Factory.StartNew (f);
  41                         res += f ();
  42                 }
  43
  44                 return res - 16;
  45         }
  46
  47         public static int Main ()
  48         {
  49                 var t = new Tester ().Lambda_1 ();
  50                 if (!Task.WaitAll (new [] { t }, 1000))
  51                         return 1;
  52
  53                 if (t.Result != 0)
  54                         return 2;
  55
  56                 t = new Tester ().Lambda_2 ();
  57                 if (!Task.WaitAll (new [] { t }, 1000))
  58                         return 3;
  59
  60                 if (t.Result != 0)
  61                         return 4;
  62
  63                 t = new Tester ().Lambda_3<ulong>();
  64                 if (!Task.WaitAll (new [] { t }, 1000))
  65                         return 5;
  66
  67                 if (t.Result != 0)
  68                         return 6;
  69
  70                 Console.WriteLine ("ok");
  71                 return 0;
  72         }
  73 }