mcs/tests/test-async-78.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Linq;
   4 using System.Threading;
   5 using System.Threading.Tasks;
   6
   7 public static class ExceptionHelper
   8 {
   9         public static async Task ConditionalCatchExceptThreadAbortAsync (Func<Task>
  10                 funcTask, Action<Exception> conditionalCatchAction)
  11         {
  12                 funcTask ();
  13                 return;
  14         }
  15 }
  16
  17 class ATask
  18 {
  19         readonly object _asyncTaskCancellationSource = new object ();
  20
  21         readonly object aname;
  22
  23         public async Task<bool> OnDoWorkAsync ()
  24         {
  25                 await ExceptionHelper.ConditionalCatchExceptThreadAbortAsync (
  26                         async () => {
  27                                 if (_asyncTaskCancellationSource != null) {
  28                                         string item = null;
  29
  30                                         await ExceptionHelper.ConditionalCatchExceptThreadAbortAsync (
  31                                                 async () => {
  32                                                         Console.WriteLine (aname);
  33                                                 },
  34                                                 (e) => {
  35                                                         Console.WriteLine (item);
  36                                                 }
  37                                         );
  38                                 }
  39                         },
  40                         null
  41                         );
  42
  43                 return true;
  44         }
  45 }
  46
  47 public class Tests
  48 {
  49         public static void Main ()
  50         {
  51                 var a = new ATask ();
  52                 var res = a.OnDoWorkAsync ().Result;
  53         }
  54 }