mono/tests/async-generic-enum.cs

   1 using System;
   2 using System.Threading.Tasks;
   3
   4
   5 public enum someEnum2 {
   6     aaa,
   7     bbb
   8 }
   9 class Tests {
  10     private static GenericEnumTest<someEnum2> test1 = new GenericEnumTest<someEnum2>();
  11     public static async Task<int> Main(string[] args)
  12     {
  13         int retVal = await test1.ThrowExceptionWithGeneric(someEnum2.aaa);
  14         return retVal;
  15     }
  16 }
  17
  18 public class GenericEnumTest<T> where T : struct {
  19     public enum anEnum {
  20         val1,
  21         val2
  22     }
  23
  24     public async Task<int> ThrowExceptionWithGeneric(T val) {
  25         try {
  26             await ThrowExceptionTaskReturn(val);
  27         } catch (Exception e) {
  28             Console.WriteLine(e);
  29         }
  30         return 0;
  31     }
  32
  33     public async Task<anEnum> ThrowExceptionTaskReturn(T val) {
  34         for (int i = 0; i < 3; i++) {
  35             Console.WriteLine("[ASY] " + (3 - i) + " " + System.Threading.Thread.CurrentThread.ManagedThreadId);
  36             await Task.Delay(TimeSpan.FromSeconds(1));
  37         }
  38
  39         var nulla = default(string[]);
  40         // Causes exception to fire, walking the stack trace causes nullpointer exception bug
  41         var vala = nulla[0];
  42
  43         return anEnum.val1;
  44     }
  45 }