mono/tests/roslyn-bug-19038.cs

   1 using System;
   2 using System.Reflection;
   3
   4 unsafe public class C {
   5     public int Value;
   6
   7     static void Main()
   8     {
   9         C a = new C { Value = 12 };
  10         FieldInfo info = typeof(C).GetField("Value");
  11         TypedReference reference = __makeref(a);
  12
  13         if (!(reference is TypedReference reference0))
  14             throw new Exception("TypedReference");
  15
  16         info.SetValueDirect(reference0, 34);
  17
  18         Console.WriteLine($"a.Value = {a.Value}");
  19         if (a.Value != 34)
  20             throw new Exception("SetValueDirect");
  21
  22         int z = 56;
  23         if (CopyRefInt(ref z) != 56)
  24             throw new Exception("ref z");
  25
  26         Console.WriteLine("ok");
  27     }
  28
  29     static int CopyRefInt(ref int z)
  30     {
  31         if (!(z is int z0))
  32             throw new Exception("CopyRefInt");
  33         return z0;
  34     }
  35 }