mcs/errors/cs8153.cs

   1 // CS8153: An expression tree lambda cannot contain a call to a method, property, or indexer that returns by reference
   2 // Line: 11
   3
   4 using System;
   5 using System.Linq.Expressions;
   6
   7 class X
   8 {
   9         void Foo ()
  10         {
  11                 Expression<Func<int>> e = () => Test (ref this[0]);
  12         }
  13
  14         static int Test (ref int y)
  15         {
  16                 return y;
  17         }
  18
  19         ref int this [int y] {
  20                 get {
  21                         throw null;
  22                 }
  23         }
  24 }