mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/GroupingCollection.cs

   1 //
   2 // GroupingCollection.cs: Represents group of BuildItemGroup,
   3 // BuildPropertyGroup and BuildChoose.
   4 //
   5 // Author:
   6 //   Marek Sieradzki (marek.sieradzki@gmail.com)
   7 //
   8 // (C) 2005 Marek Sieradzki
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28
  29 #if NET_2_0
  30
  31 using System;
  32 using System.Collections;
  33 using System.Collections.Generic;
  34
  35 namespace Microsoft.Build.BuildEngine {
  36         internal class GroupingCollection : IEnumerable {
  37
  38                 int     imports;
  39                 int     itemGroups;
  40                 Project project;
  41                 int     propertyGroups;
  42                 int     chooses;
  43
  44                 LinkedList <object>     list;
  45                 LinkedListNode <object> add_iterator;
  46
  47                 public GroupingCollection (Project project)
  48                 {
  49                         list = new LinkedList <object> ();
  50                         add_iterator = null;
  51                         this.project = project;
  52                 }
  53
  54                 public IEnumerator GetChooseEnumerator ()
  55                 {
  56                         foreach (object o in list)
  57                                 if (o is BuildChoose)
  58                                         yield return o;
  59                 }
  60
  61                 public IEnumerator GetEnumerator ()
  62                 {
  63                         return list.GetEnumerator ();
  64                 }
  65
  66                 public IEnumerator GetImportEnumerator ()
  67                 {
  68                         foreach (object o in list)
  69                                 if (o is Import)
  70                                         yield return o;
  71                 }
  72
  73                 public IEnumerator GetItemGroupAndChooseEnumerator ()
  74                 {
  75                         foreach (object o in list)
  76                                 if (o is BuildItemGroup || o is BuildPropertyGroup)
  77                                         yield return o;
  78                 }
  79
  80                 public IEnumerator GetItemGroupEnumerator ()
  81                 {
  82                         foreach (object o in list)
  83                                 if (o is BuildItemGroup)
  84                                         yield return o;
  85                 }
  86
  87                 public IEnumerator GetPropertyGroupAndChooseEnumerator ()
  88                 {
  89                         foreach (object o in list)
  90                                 if (o is BuildPropertyGroup || o is BuildChoose)
  91                                         yield return o;
  92                 }
  93
  94                 public IEnumerator GetPropertyGroupEnumerator ()
  95                 {
  96                         foreach (object o in list)
  97                                 if (o is BuildPropertyGroup)
  98                                         yield return o;
  99                 }
 100
 101                 internal void Add (BuildPropertyGroup bpg)
 102                 {
 103                         bpg.GroupingCollection = this;
 104                         propertyGroups++;
 105                         if (add_iterator == null)
 106                                 list.AddLast (bpg);
 107                         else {
 108                                 list.AddAfter (add_iterator, bpg);
 109                                 add_iterator = add_iterator.Next;
 110                         }
 111                 }
 112
 113                 internal void Add (BuildItemGroup big)
 114                 {
 115                         itemGroups++;
 116                         if (add_iterator == null)
 117                                 list.AddLast (big);
 118                         else {
 119                                 list.AddAfter (add_iterator, big);
 120                                 add_iterator = add_iterator.Next;
 121                         }
 122                 }
 123
 124                 internal void Add (BuildChoose bc)
 125                 {
 126                         chooses++;
 127                         if (add_iterator == null)
 128                                 list.AddLast (bc);
 129                         else {
 130                                 list.AddAfter (add_iterator, bc);
 131                                 add_iterator = add_iterator.Next;
 132                         }
 133                 }
 134
 135                 internal void Add (Import import)
 136                 {
 137                         imports++;
 138                         if (add_iterator == null)
 139                                 list.AddLast (import);
 140                         else {
 141                                 list.AddAfter (add_iterator, import);
 142                                 add_iterator = add_iterator.Next;
 143                         }
 144                 }
 145
 146                 internal void Remove (BuildItemGroup big)
 147                 {
 148                         if (big.ParentProject != project)
 149                                 throw new InvalidOperationException (
 150                                         "The \"BuildItemGroup\" object specified does not belong to the correct \"Project\" object.");
 151
 152                         big.Detach ();
 153                         list.Remove (big);
 154                 }
 155
 156                 internal void Remove (BuildPropertyGroup bpg)
 157                 {
 158                         // FIXME: add bpg.Detach ();
 159                         bpg.XmlElement.ParentNode.RemoveChild (bpg.XmlElement);
 160                         list.Remove (bpg);
 161                 }
 162
 163                 internal void Evaluate ()
 164                 {
 165                         Evaluate (EvaluationType.Property);
 166                         Evaluate (EvaluationType.Item);
 167                         Evaluate (EvaluationType.Choose);
 168                 }
 169
 170                 internal void Evaluate (EvaluationType type)
 171                 {
 172                         BuildItemGroup big;
 173                         BuildPropertyGroup bpg;
 174                         LinkedListNode <object> evaluate_iterator;
 175
 176                         if (type == EvaluationType.Property) {
 177                                 evaluate_iterator = list.First;
 178                                 add_iterator = list.First;
 179
 180                                 while (evaluate_iterator != null) {
 181                                         if (evaluate_iterator.Value is BuildPropertyGroup) {
 182                                                 bpg = (BuildPropertyGroup) evaluate_iterator.Value;
 183                                                 if (ConditionParser.ParseAndEvaluate (bpg.Condition, project))
 184                                                         bpg.Evaluate ();
 185                                         }
 186
 187                                         // if it wasn't moved by adding anything because of evaluating a Import shift it
 188                                         if (add_iterator == evaluate_iterator)
 189                                                 add_iterator = add_iterator.Next;
 190
 191                                         evaluate_iterator = evaluate_iterator.Next;
 192                                 }
 193                         } else if (type == EvaluationType.Item) {
 194                                 evaluate_iterator = list.First;
 195                                 add_iterator = list.First;
 196
 197                                 while (evaluate_iterator != null) {
 198                                         if (evaluate_iterator.Value is BuildItemGroup) {
 199                                                 big = (BuildItemGroup) evaluate_iterator.Value;
 200                                                 if (ConditionParser.ParseAndEvaluate (big.Condition, project))
 201                                                         big.Evaluate ();
 202                                         }
 203
 204                                         evaluate_iterator = evaluate_iterator.Next;
 205                                 }
 206                         } else if (type == EvaluationType.Choose) {
 207                                 evaluate_iterator = list.First;
 208                                 add_iterator = list.First;
 209
 210                                 while (evaluate_iterator != null) {
 211                                         if (evaluate_iterator.Value is BuildChoose) {
 212                                                 BuildChoose bc = (BuildChoose)evaluate_iterator.Value;
 213                                                 bool whenUsed = false;
 214                                                 foreach (BuildWhen bw in bc.Whens) {
 215                                                         if (ConditionParser.ParseAndEvaluate (bw.Condition, project)) {
 216                                                                 bw.Evaluate ();
 217                                                                 whenUsed = true;
 218                                                                 break;
 219                                                         }
 220                                                 }
 221                                                 if (!whenUsed && bc.Otherwise != null &&
 222                                                         ConditionParser.ParseAndEvaluate (bc.Otherwise.Condition, project)) {
 223                                                         bc.Otherwise.Evaluate ();
 224                                                 }
 225                                         }
 226
 227                                         evaluate_iterator = evaluate_iterator.Next;
 228                                 }
 229                         }
 230
 231                         add_iterator = null;
 232                 }
 233
 234                 internal int Imports {
 235                         get { return this.imports; }
 236                 }
 237
 238                 internal int ItemGroups {
 239                         get { return this.itemGroups; }
 240                 }
 241
 242                 internal int PropertyGroups {
 243                         get { return this.propertyGroups; }
 244                 }
 245
 246                 internal int Chooses {
 247                         get { return this.chooses; }
 248                 }
 249         }
 250
 251         enum EvaluationType {
 252                 Property,
 253                 Item,
 254                 Choose
 255         }
 256 }
 257
 258 #endif