mcs/tests/gtest-116.cs

   1 using System;
   2
   3 namespace Slow
   4 {
   5         public interface ITest
   6         {
   7                 void DoNothing<T>()
   8                         where T : class;
   9         }
  10
  11         public class Test : ITest
  12         {
  13                 public void DoNothing<T>()
  14                         where T : class
  15                 {
  16                         T x = null;
  17                 }
  18         }
  19
  20         class Program
  21         {
  22                 public static void Main(string[] args)
  23                 {
  24                         const int iterations = 10000;
  25
  26                         Test test = new Test ();
  27
  28                         DateTime start = DateTime.Now;
  29                         Console.Write ("Calling Test.DoNothing<Program>() on an object reference...  ");
  30                         for (int i = 0; i < iterations; ++i)
  31                         {
  32                                 test.DoNothing<Program> ();
  33                         }
  34                         DateTime end = DateTime.Now;
  35                         TimeSpan duration = end - start;
  36                         Console.WriteLine ("Took " + duration.TotalMilliseconds + " ms.");
  37
  38                         ITest testInterface = test;
  39
  40                         start = DateTime.Now;
  41                         Console.Write ("Calling Test.DoNothing<Program>() on an interface reference...  ");
  42                         for (int i = 0; i < iterations; ++i)
  43                         {
  44                                 testInterface.DoNothing<Program> ();
  45                         }
  46                         end = DateTime.Now;
  47                         duration = end - start;
  48                         Console.WriteLine ("Took " + duration.TotalMilliseconds + " ms.");
  49                 }
  50         }
  51 }