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 Evaluate ()
 146                 {
 147                         Evaluate (EvaluationType.Property);
 148
 149                         Evaluate (EvaluationType.Item);
 150                 }
 151
 152                 void Evaluate (EvaluationType type)
 153                 {
 154                         BuildItemGroup big;
 155                         BuildPropertyGroup bpg;
 156                         Import import;
 157                         LinkedListNode <object> evaluate_iterator;
 158
 159                         if (type == EvaluationType.Property) {
 160                                 evaluate_iterator = list.First;
 161                                 add_iterator = list.First;
 162
 163                                 while (evaluate_iterator != null) {
 164                                         if (evaluate_iterator.Value is BuildPropertyGroup) {
 165                                                 bpg = (BuildPropertyGroup) evaluate_iterator.Value;
 166                                                 if (ConditionParser.ParseAndEvaluate (bpg.Condition, project))
 167                                                         bpg.Evaluate ();
 168                                         } else if (evaluate_iterator.Value is Import) {
 169                                                 import = (Import) evaluate_iterator.Value;
 170                                                 if (ConditionParser.ParseAndEvaluate (import.Condition, project))
 171                                                         import.Evaluate ();
 172                                         }
 173
 174                                         // if it wasn't moved by adding anything because of evaluating a Import shift it
 175                                         if (add_iterator == evaluate_iterator)
 176                                                 add_iterator = add_iterator.Next;
 177
 178                                         evaluate_iterator = evaluate_iterator.Next;
 179                                 }
 180                         } else {
 181                                 evaluate_iterator = list.First;
 182                                 add_iterator = list.First;
 183
 184                                 while (evaluate_iterator != null) {
 185                                         if (evaluate_iterator.Value is BuildItemGroup) {
 186                                                 big = (BuildItemGroup) evaluate_iterator.Value;
 187                                                 if (ConditionParser.ParseAndEvaluate (big.Condition, project))
 188                                                         big.Evaluate ();
 189                                         }
 190
 191                                         evaluate_iterator = evaluate_iterator.Next;
 192                                 }
 193                         }
 194                 }
 195
 196                 internal int Imports {
 197                         get { return this.imports; }
 198                 }
 199
 200                 internal int ItemGroups {
 201                         get { return this.itemGroups; }
 202                 }
 203
 204                 internal int PropertyGroups {
 205                         get { return this.propertyGroups; }
 206                 }
 207
 208                 internal int Chooses {
 209                         get { return this.chooses; }
 210                 }
 211         }
 212
 213         enum EvaluationType {
 214                 Property,
 215                 Item
 216         }
 217 }
 218
 219 #endif