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.Collections;
  32 using System.Collections.Generic;
  33
  34 namespace Microsoft.Build.BuildEngine {
  35         internal class GroupingCollection : IEnumerable {
  36
  37                 int     imports;
  38                 int     itemGroups;
  39                 Project project;
  40                 int     propertyGroups;
  41                 int     chooses;
  42
  43                 LinkedList <object>     list;
  44                 LinkedListNode <object> add_iterator;
  45
  46                 public GroupingCollection (Project project)
  47                 {
  48                         list = new LinkedList <object> ();
  49                         add_iterator = null;
  50                         this.project = project;
  51                 }
  52
  53                 public IEnumerator GetChooseEnumerator ()
  54                 {
  55                         foreach (object o in list)
  56                                 if (o is BuildChoose)
  57                                         yield return o;
  58                 }
  59
  60                 public IEnumerator GetEnumerator ()
  61                 {
  62                         return list.GetEnumerator ();
  63                 }
  64
  65                 public IEnumerator GetImportEnumerator ()
  66                 {
  67                         foreach (object o in list)
  68                                 if (o is Import)
  69                                         yield return o;
  70                 }
  71
  72                 public IEnumerator GetItemGroupAndChooseEnumerator ()
  73                 {
  74                         foreach (object o in list)
  75                                 if (o is BuildItemGroup || o is BuildPropertyGroup)
  76                                         yield return o;
  77                 }
  78
  79                 public IEnumerator GetItemGroupEnumerator ()
  80                 {
  81                         foreach (object o in list)
  82                                 if (o is BuildItemGroup)
  83                                         yield return o;
  84                 }
  85
  86                 public IEnumerator GetPropertyGroupAndChooseEnumerator ()
  87                 {
  88                         foreach (object o in list)
  89                                 if (o is BuildPropertyGroup || o is BuildChoose)
  90                                         yield return o;
  91                 }
  92
  93                 public IEnumerator GetPropertyGroupEnumerator ()
  94                 {
  95                         foreach (object o in list)
  96                                 if (o is BuildPropertyGroup)
  97                                         yield return o;
  98                 }
  99
 100                 internal void Add (BuildPropertyGroup bpg)
 101                 {
 102                         bpg.GroupingCollection = this;
 103                         propertyGroups++;
 104                         if (add_iterator == null)
 105                                 list.AddLast (bpg);
 106                         else {
 107                                 list.AddAfter (add_iterator, bpg);
 108                                 add_iterator = add_iterator.Next;
 109                         }
 110                 }
 111
 112                 internal void Add (BuildItemGroup big)
 113                 {
 114                         itemGroups++;
 115                         if (add_iterator == null)
 116                                 list.AddLast (big);
 117                         else {
 118                                 list.AddAfter (add_iterator, big);
 119                                 add_iterator = add_iterator.Next;
 120                         }
 121                 }
 122
 123                 internal void Add (BuildChoose bc)
 124                 {
 125                         chooses++;
 126                         if (add_iterator == null)
 127                                 list.AddLast (bc);
 128                         else {
 129                                 list.AddAfter (add_iterator, bc);
 130                                 add_iterator = add_iterator.Next;
 131                         }
 132                 }
 133
 134                 internal void Add (Import import)
 135                 {
 136                         imports++;
 137                         if (add_iterator == null)
 138                                 list.AddLast (import);
 139                         else {
 140                                 list.AddAfter (add_iterator, import);
 141                                 add_iterator = add_iterator.Next;
 142                         }
 143                 }
 144
 145                 internal void Remove (BuildItemGroup big)
 146                 {
 147                         big.Detach ();
 148                         list.Remove (big);
 149                 }
 150
 151                 internal void Remove (BuildPropertyGroup bpg)
 152                 {
 153                         // FIXME: add bpg.Detach ();
 154                         bpg.XmlElement.ParentNode.RemoveChild (bpg.XmlElement);
 155                         list.Remove (bpg);
 156                 }
 157
 158                 internal void Evaluate ()
 159                 {
 160                         Evaluate (EvaluationType.Property);
 161                         Evaluate (EvaluationType.Item);
 162                 }
 163
 164                 void Evaluate (EvaluationType type)
 165                 {
 166                         BuildItemGroup big;
 167                         BuildPropertyGroup bpg;
 168                         Import import;
 169                         LinkedListNode <object> evaluate_iterator;
 170
 171                         if (type == EvaluationType.Property) {
 172                                 evaluate_iterator = list.First;
 173                                 add_iterator = list.First;
 174
 175                                 while (evaluate_iterator != null) {
 176                                         if (evaluate_iterator.Value is BuildPropertyGroup) {
 177                                                 bpg = (BuildPropertyGroup) evaluate_iterator.Value;
 178                                                 if (ConditionParser.ParseAndEvaluate (bpg.Condition, project))
 179                                                         bpg.Evaluate ();
 180                                         } else if (evaluate_iterator.Value is Import) {
 181                                                 import = (Import) evaluate_iterator.Value;
 182                                                 if (ConditionParser.ParseAndEvaluate (import.Condition, project))
 183                                                         import.Evaluate ();
 184                                         }
 185
 186                                         // if it wasn't moved by adding anything because of evaluating a Import shift it
 187                                         if (add_iterator == evaluate_iterator)
 188                                                 add_iterator = add_iterator.Next;
 189
 190                                         evaluate_iterator = evaluate_iterator.Next;
 191                                 }
 192                         } else {
 193                                 evaluate_iterator = list.First;
 194                                 add_iterator = list.First;
 195
 196                                 while (evaluate_iterator != null) {
 197                                         if (evaluate_iterator.Value is BuildItemGroup) {
 198                                                 big = (BuildItemGroup) evaluate_iterator.Value;
 199                                                 if (ConditionParser.ParseAndEvaluate (big.Condition, project))
 200                                                         big.Evaluate ();
 201                                         }
 202
 203                                         evaluate_iterator = evaluate_iterator.Next;
 204                                 }
 205                         }
 206
 207                         add_iterator = null;
 208                 }
 209
 210                 internal int Imports {
 211                         get { return this.imports; }
 212                 }
 213
 214                 internal int ItemGroups {
 215                         get { return this.itemGroups; }
 216                 }
 217
 218                 internal int PropertyGroups {
 219                         get { return this.propertyGroups; }
 220                 }
 221
 222                 internal int Chooses {
 223                         get { return this.chooses; }
 224                 }
 225         }
 226
 227         enum EvaluationType {
 228                 Property,
 229                 Item
 230         }
 231 }
 232
 233 #endif