mcs/class/Microsoft.JScript/Microsoft.JScript/VsaItems.cs

   1 //
   2 // VsaItems.cs:
   3 //
   4 // Author:
   5 //      Cesar Lopez Nataren (cesar@ciencias.unam.mx)
   6 //
   7 // (C) 2003, Cesar Lopez Nataren
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Collections;
  32 using Microsoft.JScript.Vsa;
  33 using Microsoft.Vsa;
  34 using System;
  35
  36 namespace Microsoft.JScript {
  37
  38         public class VsaItems : IVsaItems {
  39
  40                 private ArrayList items;
  41                 private VsaEngine engine;
  42                 private ArrayList names;
  43
  44                 public VsaItems (VsaEngine engine)
  45                 {
  46                         this.items = new ArrayList ();
  47                         this.engine = engine;
  48                         this.names = new ArrayList ();
  49                 }
  50
  51                 public IVsaItem this [int index] {
  52
  53                         get {
  54                                 int size = items.Count;
  55
  56                                 if (index < 0 || index > size)
  57                                         throw new VsaException (VsaError.ItemNotFound);
  58                                 return (IVsaItem) items [index];
  59                         }
  60                 }
  61
  62                 public IVsaItem this [string name] {
  63                         get {
  64                                 int i;
  65                                 int size = items.Count;
  66                                 IVsaItem item;
  67
  68                                 for (i = 0; i < size; i++) {
  69                                         item = (IVsaItem) items [i];
  70
  71                                         if (item.Name == name)
  72                                                 return item;
  73                                         continue;
  74                                 }
  75                                 throw new VsaException (VsaError.ItemNotFound);
  76                         }
  77                 }
  78
  79                 public virtual int Count {
  80                         get {
  81                                 if (engine.Closed)
  82                                         throw new VsaException (VsaError.EngineClosed);
  83                                 else if (!engine.InitNewCalled)
  84                                         throw new VsaException (VsaError.EngineNotInitialized);
  85
  86                                 return items.Count;
  87                         }
  88                 }
  89
  90                 public virtual void Close ()
  91                 {
  92                         throw new NotImplementedException ();
  93                 }
  94
  95                 public virtual IVsaItem CreateItem (string name,
  96                                                     VsaItemType itemType,
  97                                                     VsaItemFlag itemFlag)
  98                 {
  99                         if (names.Contains (name))
 100                                  throw new VsaException (VsaError.ItemNameInUse);
 101
 102                         IVsaItem item = null;
 103
 104                         switch (itemType) {
 105                         case VsaItemType.AppGlobal:
 106                                 if (itemFlag != VsaItemFlag.None)
 107                                         throw new VsaException (VsaError.ItemFlagNotSupported);
 108                                 item = new VsaGlobalItem (engine, name, itemFlag);
 109                                 break;
 110
 111                         case VsaItemType.Code:
 112                                 item = new VsaCodeItem (engine, name, itemFlag);
 113                                 break;
 114
 115                         case VsaItemType.Reference:
 116                                 if (itemFlag != VsaItemFlag.None)
 117                                         throw new VsaException (VsaError.ItemFlagNotSupported);
 118                                 item = new VsaReferenceItem (engine, name, itemFlag);
 119                                         break;
 120                         }
 121
 122                         if (item != null) {
 123                                 items.Add (item);
 124                                 names.Add (name);
 125                         }
 126
 127                         engine.IsDirty = true;
 128
 129                         return item;
 130                 }
 131
 132                 public virtual IEnumerator GetEnumerator ()
 133                 {
 134                         return items.GetEnumerator ();
 135                 }
 136
 137                 public virtual void Remove (string itemName)
 138                 {
 139                         int i;
 140                         int size = items.Count;
 141
 142                         for (i = 0; i < size; i++)
 143                                 if (((IVsaItem) items[i]).Name == itemName) {
 144                                         items.RemoveAt (i);
 145                                         return;
 146                                 }
 147
 148                         throw new VsaException (VsaError.ItemNotFound);
 149                 }
 150
 151                 public virtual void Remove (int itemIndex)
 152                 {
 153                         if (itemIndex < 0 || itemIndex > items.Count)
 154                                 throw new VsaException (VsaError.ItemNotFound);
 155
 156                         items.RemoveAt (itemIndex);
 157                 }
 158         }
 159 }