mcs/tests/test-async-35.cs

   1 using System;
   2 using System.Reflection;
   3 using System.Threading.Tasks;
   4 using System.Runtime.CompilerServices;
   5 using System.Linq;
   6
   7 namespace N.M
   8 {
   9         class C
  10         {
  11                 public static async Task<int> AsyncMethod ()
  12                 {
  13                         await Task.Delay (1);
  14                         return 0;
  15                 }
  16
  17                 public static async Task NestedAsyncAnonymousMethod ()
  18                 {
  19                         Action a = async delegate {
  20                                 await Task.Yield();
  21                         };
  22
  23                         await Task.Yield();
  24                 }
  25
  26                 public static int Main ()
  27                 {
  28                         var m = typeof (C).GetMethod ("AsyncMethod");
  29                         var attr = m.GetCustomAttribute<AsyncStateMachineAttribute> ();
  30                         if (attr == null)
  31                                 return 1;
  32
  33                         if (attr.StateMachineType == null)
  34                                 return 2;
  35
  36                         Func<Task<int>> a = async () => await AsyncMethod ();
  37
  38                         var c = typeof (C).GetMethods (BindingFlags.NonPublic | BindingFlags.Static).Where (l =>
  39                                 l.IsDefined (typeof (AsyncStateMachineAttribute))).Count ();
  40
  41                         if (c != 1)
  42                                 return 3;
  43
  44
  45                         m = typeof (C).GetMethod ("NestedAsyncAnonymousMethod");
  46                         attr = m.GetCustomAttribute<AsyncStateMachineAttribute> ();
  47                         if (attr == null)
  48                                 return 10;
  49
  50                         if (attr.StateMachineType == null)
  51                                 return 11;
  52
  53                         var n = typeof (C).GetNestedTypes (BindingFlags.NonPublic).Single (l => l.Name.Contains ("NestedAsyncAnonymousMethod"));
  54                         if (n == null)
  55                                 return 12;
  56
  57                         m = n.GetMethods (BindingFlags.NonPublic | BindingFlags.Static).Single (l => l.Name.Contains ("m__"));
  58
  59                         attr = m.GetCustomAttribute<AsyncStateMachineAttribute> ();
  60                         if (attr == null)
  61                                 return 13;
  62
  63                         if (attr.StateMachineType == null)
  64                                 return 14;
  65
  66                         return 0;
  67                 }
  68         }
  69 }