mcs/class/Microsoft.JScript/Microsoft.JScript/LateBinding.cs

   1 //
   2 // LateBinding.cs:
   3 //
   4 // Author:
   5 //      Cesar Lopez Nataren (cesar@ciencias.unam.mx)
   6 //
   7 // (C) 2003, Cesar Lopez Nataren
   8 // (C) 2005, Novell Inc, (http://novell.com)
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.Reflection;
  34 using System.Diagnostics;
  35 using Microsoft.JScript.Vsa;
  36 using System.Collections;
  37
  38 namespace Microsoft.JScript {
  39
  40         public sealed class LateBinding {
  41
  42                 public object obj;
  43                 private static BindingFlags bind_flags = BindingFlags.Public;
  44                 private string right_hand_side;
  45
  46                 public LateBinding (string name)
  47                 {
  48                         this.right_hand_side = name;
  49                 }
  50
  51
  52                 public LateBinding (string name, object obj)
  53                 {
  54                         throw new NotImplementedException ();
  55                 }
  56
  57
  58                 [DebuggerStepThroughAttribute]
  59                 [DebuggerHiddenAttribute]
  60                 public object Call (object [] arguments, bool construct, bool brackets,
  61                                     VsaEngine engine)
  62                 {
  63                         if (construct) {
  64                                 if (brackets) {
  65                                 } else {
  66                                 }
  67                         } else {
  68                                 if (brackets) {
  69                                 } else {
  70                                         Type type = null;
  71
  72                                         if (obj is JSObject)
  73                                                 type = SemanticAnalyser.map_to_prototype ((JSObject) obj);
  74
  75                                         MethodInfo method = type.GetMethod (right_hand_side, BindingFlags.Public | BindingFlags.Static);
  76                                         object [] args = build_args (arguments, engine);
  77                                         return method.Invoke (type, args);
  78                                 }
  79                         }
  80                         throw new NotImplementedException ();
  81                 }
  82
  83                 private object [] build_args (object [] arguments, VsaEngine engine)
  84                 {
  85                         ArrayList args = new ArrayList ();
  86                         if (obj != null)
  87                                 args.Add (obj);
  88                         if (engine != null)
  89                                 args.Add (engine);
  90                         foreach (object o in arguments)
  91                                 args.Add (o);
  92                         return args.ToArray ();
  93                 }
  94
  95                 [DebuggerStepThroughAttribute]
  96                 [DebuggerHiddenAttribute]
  97                 public static object CallValue (object thisObj, object val, object [] arguments,
  98                                                 bool construct, bool brackets, VsaEngine engine)
  99                 {
 100                         if (construct) {
 101                                 if (brackets) {
 102                                         return null;
 103                                 }
 104                                 return null;
 105                         } else if (brackets) {
 106                                 if (!(val is JSObject))
 107                                         throw new Exception ("val has to be a JSObject");
 108
 109                                 JSObject js_val = (JSObject) val;
 110                                 object res = js_val.GetField (Convert.ToString (arguments [0]));
 111                                 if (res is JSFieldInfo)
 112                                         return ((JSFieldInfo) res).GetValue (arguments [0]);
 113                                 else
 114                                         throw new NotImplementedException ();
 115                         } else {
 116                                 return null;
 117                         }
 118                 }
 119
 120                 [DebuggerStepThroughAttribute]
 121                 [DebuggerHiddenAttribute]
 122                 public static object CallValue2 (object val, object thisObj, object [] arguments,
 123                                                  bool construct, bool brackets, VsaEngine engine)
 124                 {
 125                         throw new NotImplementedException ();
 126                 }
 127
 128
 129                 public bool Delete ()
 130                 {
 131                         throw new NotImplementedException ();
 132                 }
 133
 134
 135                 public static bool DeleteMember (object obj, string name)
 136                 {
 137                         throw new NotImplementedException ();
 138                 }
 139
 140                 [DebuggerStepThroughAttribute]
 141                 [DebuggerHiddenAttribute]
 142                 public object GetNonMissingValue ()
 143                 {
 144                         Type type = obj.GetType ();
 145                         MemberInfo [] members = type.GetMember (right_hand_side);
 146                         if (members.Length > 0) {
 147                                 MemberInfo member = members [0];
 148                                 MemberTypes member_type = member.MemberType;
 149
 150                                 switch (member_type) {
 151                                 case MemberTypes.Property:
 152                                         MethodInfo method = ((PropertyInfo) member).GetGetMethod ();
 153                                         return method.Invoke (obj, new object [] {});
 154                                 }
 155                         }
 156                         throw new NotImplementedException ();
 157                 }
 158
 159                 [DebuggerStepThroughAttribute]
 160                 [DebuggerHiddenAttribute]
 161                 public object GetValue2 ()
 162                 {
 163                         throw new NotImplementedException ();
 164                 }
 165
 166                 [DebuggerStepThroughAttribute]
 167                 [DebuggerHiddenAttribute]
 168                 public static void SetIndexedPropertyValueStatic (object obj, object [] arguments,
 169                                                                   object value)
 170                 {
 171                         if (!(obj is JSObject))
 172                                 throw new Exception ("obj should be a JSObject");
 173
 174                         JSObject js_obj = (JSObject) obj;
 175                         foreach (object o in arguments)
 176                                 js_obj.AddField (o, value);
 177                 }
 178
 179                 [DebuggerStepThroughAttribute]
 180                 [DebuggerHiddenAttribute]
 181                 public void SetValue (object value)
 182                 {
 183                         throw new NotImplementedException ();
 184                 }
 185         }
 186 }