mcs/class/corlib/System/Delegate.cs

   1 //
   2 // System.Delegate.cs
   3 //
   4 // Author:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //
   7 // (C) Ximian, Inc.  http://www.ximian.com
   8 //
   9 // TODO:  Mucho left to implement
  10 //
  11
  12 using System;
  13 using System.Runtime.Serialization;
  14
  15 namespace System {
  16
  17         public abstract class Delegate : ICloneable, ISerializable {
  18                 protected Type target_type;
  19                 protected object target;
  20                 protected string method;
  21
  22                 protected Delegate (object target, string method)
  23                 {
  24                         if (target == null)
  25                                 throw new ArgumentNullException ("Target object is null");
  26
  27                         if (method == null)
  28                                 throw new ArgumentNullException ("method name is null");
  29
  30                         this.target_type = null;
  31                         this.target = target;
  32                         this.method = method;
  33                 }
  34
  35                 protected Delegate (Type target_type, string method)
  36                 {
  37                         if (target == null)
  38                                 throw new ArgumentNullException ("Target type is null");
  39
  40                         if (method == null)
  41                                 throw new ArgumentNullException ("method string is null");
  42
  43                         this.target_type = target_type;
  44                         this.target = null;
  45                         this.method = method;
  46                 }
  47
  48 #if NOTYET
  49                 public MethodInfo Method {
  50                         get {
  51                                 return null;
  52                         }
  53                 }
  54 #endif
  55
  56                 public object Target {
  57                         get {
  58                                 return target;
  59                         }
  60                 }
  61
  62
  63                 //
  64                 // Methods
  65                 //
  66
  67                 public abstract object Clone ();
  68
  69                 public override bool Equals (object o)
  70                 {
  71                         if (!(o is System.Delegate))
  72                                 return false;
  73
  74                         Delegate d = (Delegate) o;
  75
  76                         if ((d.target_type == target_type) &&
  77                             (d.target == target) &&
  78                             (d.method == method))
  79                                 return true;
  80
  81                         return false;
  82                 }
  83
  84                 public override int GetHashCode ()
  85                 {
  86                         return method.GetHashCode ();
  87                 }
  88
  89                 // This is from ISerializable
  90                 public void GetObjectData (SerializationInfo info, StreamingContext context)
  91                 {
  92                         // TODO: IMPLEMENT ME
  93                 }
  94
  95         }
  96 }