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                                                 project.PushThisFileProperty (bpg.DefinedInFileName);
 184                                                 try {
 185                                                         if (ConditionParser.ParseAndEvaluate (bpg.Condition, project))
 186                                                                 bpg.Evaluate ();
 187                                                 } finally {
 188                                                         project.PopThisFileProperty ();
 189                                                 }
 190                                         }
 191
 192                                         // if it wasn't moved by adding anything because of evaluating a Import shift it
 193                                         if (add_iterator == evaluate_iterator)
 194                                                 add_iterator = add_iterator.Next;
 195
 196                                         evaluate_iterator = evaluate_iterator.Next;
 197                                 }
 198                         } else if (type == EvaluationType.Item) {
 199                                 evaluate_iterator = list.First;
 200                                 add_iterator = list.First;
 201
 202                                 while (evaluate_iterator != null) {
 203                                         if (evaluate_iterator.Value is BuildItemGroup) {
 204                                                 big = (BuildItemGroup) evaluate_iterator.Value;
 205                                                 project.PushThisFileProperty (big.DefinedInFileName);
 206                                                 try {
 207                                                         if (ConditionParser.ParseAndEvaluate (big.Condition, project))
 208                                                                 big.Evaluate ();
 209                                                 } finally {
 210                                                         project.PopThisFileProperty ();
 211                                                 }
 212                                         }
 213
 214                                         evaluate_iterator = evaluate_iterator.Next;
 215                                 }
 216                         } else if (type == EvaluationType.Choose) {
 217                                 evaluate_iterator = list.First;
 218                                 add_iterator = list.First;
 219
 220                                 while (evaluate_iterator != null) {
 221                                         if (evaluate_iterator.Value is BuildChoose) {
 222                                                 BuildChoose bc = (BuildChoose)evaluate_iterator.Value;
 223                                                 project.PushThisFileProperty (bc.DefinedInFileName);
 224                                                 try {
 225                                                         bool whenUsed = false;
 226                                                         foreach (BuildWhen bw in bc.Whens) {
 227                                                                 if (ConditionParser.ParseAndEvaluate (bw.Condition, project)) {
 228                                                                         bw.Evaluate ();
 229                                                                         whenUsed = true;
 230                                                                         break;
 231                                                                 }
 232                                                         }
 233                                                         if (!whenUsed && bc.Otherwise != null &&
 234                                                                 ConditionParser.ParseAndEvaluate (bc.Otherwise.Condition, project)) {
 235                                                                 bc.Otherwise.Evaluate ();
 236                                                         }
 237                                                 } finally {
 238                                                         project.PopThisFileProperty ();
 239                                                 }
 240                                         }
 241
 242                                         evaluate_iterator = evaluate_iterator.Next;
 243                                 }
 244                         }
 245
 246                         add_iterator = null;
 247                 }
 248
 249                 internal int Imports {
 250                         get { return this.imports; }
 251                 }
 252
 253                 internal int ItemGroups {
 254                         get { return this.itemGroups; }
 255                 }
 256
 257                 internal int PropertyGroups {
 258                         get { return this.propertyGroups; }
 259                 }
 260
 261                 internal int Chooses {
 262                         get { return this.chooses; }
 263                 }
 264         }
 265
 266         enum EvaluationType {
 267                 Property,
 268                 Item,
 269                 Choose
 270         }
 271 }
 272
 273 #endif