tests/test-19.cs

   1 using System;
   2 using System.Threading;
   3 using System.Reflection;
   4
   5 class I {
   6
   7         public delegate string GetTextFn (string a);
   8
   9         static public GetTextFn GetText;
  10
  11         static string fn (string s)
  12         {
  13                 return "(" + s + ")";
  14         }
  15
  16         static I ()
  17         {
  18                 GetText = new GetTextFn (fn);
  19         }
  20 }
  21
  22 class X {
  23
  24         public delegate int Foo (int i, int j);
  25
  26         private void Thread_func () {
  27                 Console.WriteLine ("Inside the thread !");
  28         }
  29
  30         public int Func (int i, int j)
  31         {
  32                 return i+j;
  33         }
  34
  35         public void Bar ()
  36         {
  37                 Foo my_func = new Foo (Func);
  38
  39                 int result = my_func (2, 4);
  40
  41                 Console.WriteLine ("Answer is : " + result);
  42         }
  43
  44         static bool MyFilter (MemberInfo mi, object criteria)
  45         {
  46                 Console.WriteLine ("You passed in : " + criteria);
  47                 return true;
  48         }
  49
  50         public static int Main ()
  51         {
  52                 I.GetTextFn _ = I.GetText;
  53
  54         Console.WriteLine ("Value: " + I.GetText);
  55                 X x = new X ();
  56
  57                 Thread thr = new Thread (new ThreadStart (x.Thread_func));
  58
  59                 thr.Start ();
  60                 Console.WriteLine ("Inside main ");
  61                 thr.Join ();
  62
  63                 Console.WriteLine (_("Hello"));
  64
  65                 x.Bar ();
  66
  67                 MemberFilter filter = new MemberFilter (MyFilter);
  68
  69                 Type t = x.GetType ();
  70
  71                 MemberInfo [] mi = t.FindMembers (MemberTypes.Method, BindingFlags.Static | BindingFlags.NonPublic,
  72                                                   Type.FilterName, "MyFilter");
  73
  74                 Console.WriteLine ("FindMembers called, mi = " + mi);
  75                 Console.WriteLine ("   Count: " + mi.Length);
  76                 if (!filter (mi [0], "MyFilter"))
  77                         return 1;
  78
  79                 //
  80                 // This test is used to call into a delegate defined in a separate
  81                 // namespace, but which is still not a nested delegate inside a class
  82                 //
  83                 NameSpace.TestDelegate td = new NameSpace.TestDelegate (multiply_by_three);
  84
  85                 if (td (8) != 24)
  86                         return 30;
  87
  88                 //
  89                 // Check the names that were used to define the delegates
  90                 //
  91                 if (td.GetType ().FullName != "NameSpace.TestDelegate")
  92                         return 31;
  93
  94                 if (_.GetType ().FullName != "I+GetTextFn")
  95                         return 32;
  96
  97                 Console.WriteLine ("Test passes");
  98
  99                 return 0;
 100         }
 101
 102         static int multiply_by_three (int v)
 103         {
 104                 return v * 3;
 105         }
 106
 107 }
 108
 109 namespace NameSpace {
 110
 111         public delegate int TestDelegate (int a);
 112
 113 }
 114
 115
 116 namespace TestNamespace
 117 {
 118         public class TestClass
 119         {
 120                 public delegate float NotWorkingDelegate(float point, params object [] hiddenParams);
 121         }
 122 }