tests/test-639.cs

   1 class Foo {
   2   bool got;
   3   string s {
   4     get { got = true; return ""; }
   5     set { if (!got || value != "A1B2") throw new System.Exception (); }
   6   }
   7
   8   static void Main ()
   9   {
  10     (new Foo ()).s += "A" + 1 + "B" + 2;
  11   }
  12 }