mcs/errors/cs4011.cs

   1 // CS4011: The awaiter type `int' must have suitable IsCompleted and GetResult members
   2 // Line: 16
   3
   4 static class S
   5 {
   6         public static int GetAwaiter (this int i)
   7         {
   8                 return 1;
   9         }
  10 }
  11
  12 class A
  13 {
  14         static async void Test ()
  15         {
  16                 await 9;
  17         }
  18 }