mcs/errors/cs0845.cs

   1 // CS0845: An expression tree cannot contain a coalescing operator with null left side
   2 // Line: 11
   3
   4 using System;
   5 using System.Linq.Expressions;
   6
   7 class C
   8 {
   9         public static void Main ()
  10         {
  11                 Expression<Func<bool?, bool?>> e = (a) => null ?? a;
  12         }
  13 }