errors/gcs0854.cs

   1 // CS0854: An expression tree cannot contain an invocation which uses optional parameter
   2 // Line: 15
   3 // Compiler options: -langversion:future
   4
   5 using System;
   6 using System.Linq.Expressions;
   7
   8 class M
   9 {
  10         static void Optional (int i, string s = "value")
  11         {
  12         }
  13
  14         public static void Main ()
  15         {
  16                 Expression<Action> e = () => Optional (1);
  17         }
  18 }