mcs/tests/test-null-operator-010.cs

   1 using System;
   2
   3 class Test
   4 {
   5         static void Main ()
   6         {
   7                 Test_1 ("");
   8                 Test_1<object> (null);
   9
  10                 Test_2<object> (null);
  11                 Test_2 ("z");
  12                 Test_2 (0);
  13                 Test_2 ((long?) -8);
  14
  15                 Test_3 (new int[1]);
  16                 Test_3 (new int[] { 5 });
  17         }
  18
  19         static void Test_1<T> (T x) where T : class
  20         {
  21                 x?.Call ();
  22         }
  23
  24         static void Test_2<T> (T x)
  25         {
  26                 x?.Call ();
  27         }
  28
  29         static void Test_3<T> (T[] x)
  30         {
  31                 x[0]?.Call ();
  32         }
  33 }
  34
  35 static class Ext
  36 {
  37         public static void Call<T> (this T t)
  38         {
  39                 Console.WriteLine (typeof (T));
  40         }
  41 }