mcs/tests/test-119.cs

   1 class Value {
   2         public static explicit operator int (Value val)
   3         {
   4                 return 1;
   5         }
   6
   7         public static explicit operator MyObject (Value val)
   8         {
   9                 return new MyObject (1);
  10         }
  11
  12         public static explicit operator uint (Value val)
  13         {
  14                 return 1;
  15         }
  16 }
  17
  18 class MyObject {
  19         public MyObject (int i) {}
  20 }
  21
  22 class Derived : MyObject {
  23         public Derived (int i) : base (i) { }
  24
  25         Derived Blah ()
  26         {
  27                 Value val = new Value ();
  28
  29                 return (Derived) val;
  30         }
  31 }
  32
  33 class Test {
  34         public static int Main ()
  35         {
  36                 Value v = new Value ();
  37
  38                 v = null;
  39
  40                 try {
  41                         // This will throw an exception.
  42                         // This test is more of a compile test, we need a real
  43                         // good test that does not require this lame catch.
  44                         Derived d = (Derived) v;
  45                 } catch {
  46                 }
  47
  48                 return 0;
  49         }
  50 }