mcs/class/Microsoft.Build/Microsoft.Build.Execution/ProjectInstance.cs

   1 //
   2 // ProjectInstance.cs
   3 //
   4 // Author:
   5 //   Rolf Bjarne Kvinge (rolf@xamarin.com)
   6 //   Atsushi Enomoto (atsushi@xamarin.com)
   7 //
   8 // Copyright (C) 2011,2013 Xamarin Inc.
   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
  30 using System;
  31 using System.Collections;
  32 using System.Collections.Generic;
  33 using System.Linq;
  34
  35 using Microsoft.Build.Construction;
  36 using Microsoft.Build.Evaluation;
  37 using Microsoft.Build.Framework;
  38 using Microsoft.Build.Internal.Expressions;
  39 using Microsoft.Build.Logging;
  40
  41 //
  42 // It is not always consistent to reuse Project and its evaluation stuff mostly because
  43 // both BuildParameters.ctor() and Project.ctor() takes arbitrary ProjectCollection, which are not very likely eqivalent
  44 // (as BuildParameters.ctor(), unlike Project.ctor(...), is known to create a new ProjectCollection instance).
  45 //
  46 // However, that inconsistency could happen even if you only use ProjectInstance and BuildParameters.
  47 // They both have constructors that take ProjectCollection and there is no guarantee that the arguments are the same.
  48 // BuildManager.Build() does not fail because of inconsistent ProjectCollection instance on .NET.
  49 //
  50 // Anyhow, I'm not going to instantiate Project within ProjectInstance code for another reason:
  51 // ProjectCollection.GetLoadedProject() does not return any Project instnace for corresponding ProjectInstance
  52 // (or I should say, ProjectRootElement for both).
  53 using Microsoft.Build.Internal;
  54 using System.Xml;
  55 using Microsoft.Build.Exceptions;
  56 using System.IO;
  57
  58
  59 namespace Microsoft.Build.Execution
  60 {
  61         public class ProjectInstance
  62         {
  63                 // instance members
  64
  65                 public ProjectInstance (ProjectRootElement xml)
  66                         : this (xml, null, null, ProjectCollection.GlobalProjectCollection)
  67                 {
  68                 }
  69
  70                 public ProjectInstance (string projectFile)
  71                         : this (projectFile, null, null, ProjectCollection.GlobalProjectCollection)
  72                 {
  73                 }
  74
  75                 public ProjectInstance (string projectFile, IDictionary<string, string> globalProperties,
  76                                 string toolsVersion)
  77                         : this (projectFile, globalProperties, toolsVersion, ProjectCollection.GlobalProjectCollection)
  78                 {
  79                 }
  80
  81                 public ProjectInstance (ProjectRootElement xml, IDictionary<string, string> globalProperties,
  82                                 string toolsVersion, ProjectCollection projectCollection)
  83                 {
  84                         projects = projectCollection;
  85                         global_properties = globalProperties ?? new Dictionary<string, string> ();
  86                         tools_version = !string.IsNullOrEmpty (toolsVersion) ? toolsVersion :
  87                                 !string.IsNullOrEmpty (xml.ToolsVersion) ? xml.ToolsVersion :
  88                                 projects.DefaultToolsVersion;
  89                         InitializeProperties (xml);
  90                 }
  91
  92                 public ProjectInstance (string projectFile, IDictionary<string, string> globalProperties,
  93                                 string toolsVersion, ProjectCollection projectCollection)
  94                         : this (ProjectRootElement.Create (projectFile), globalProperties, toolsVersion, projectCollection)
  95                 {
  96                 }
  97
  98                 ProjectCollection projects;
  99                 IDictionary<string, string> global_properties;
 100
 101                 string full_path, directory;
 102                 ElementLocation location;
 103
 104                 Dictionary<string, ProjectItemDefinitionInstance> item_definitions;
 105                 List<ResolvedImport> raw_imports; // maybe we don't need this...
 106                 List<ProjectItemInstance> all_evaluated_items;
 107                 List<ProjectItemInstance> raw_items;
 108                 Dictionary<string,ProjectPropertyInstance> properties;
 109                 Dictionary<string, ProjectTargetInstance> targets;
 110                 string tools_version;
 111
 112                 // FIXME: this is a duplicate code between Project and ProjectInstance
 113                 string [] GetDefaultTargets (ProjectRootElement xml)
 114                 {
 115                         var ret = GetDefaultTargets (xml, true, true);
 116                         return ret.Any () ? ret : GetDefaultTargets (xml, false, true);
 117                 }
 118
 119                 string [] GetDefaultTargets (ProjectRootElement xml, bool fromAttribute, bool checkImports)
 120                 {
 121                         if (fromAttribute) {
 122                                 var ret = xml.DefaultTargets.Split (item_target_sep, StringSplitOptions.RemoveEmptyEntries).Select (s => s.Trim ()).ToArray ();
 123                                 if (checkImports && ret.Length == 0) {
 124                                         foreach (var imp in this.raw_imports) {
 125                                                 ret = GetDefaultTargets (imp.ImportedProject, true, false);
 126                                                 if (ret.Any ())
 127                                                         break;
 128                                         }
 129                                 }
 130                                 return ret;
 131                         } else {
 132                                 if (xml.Targets.Any ())
 133                                         return new String [] { xml.Targets.First ().Name };
 134                                 if (checkImports) {
 135                                         foreach (var imp in this.raw_imports) {
 136                                                 var ret = GetDefaultTargets (imp.ImportedProject, false, false);
 137                                                 if (ret.Any ())
 138                                                         return ret;
 139                                         }
 140                                 }
 141                                 return new string [0];
 142                         }
 143                 }
 144
 145                 void InitializeProperties (ProjectRootElement xml)
 146                 {
 147                         location = xml.Location;
 148                         full_path = xml.FullPath;
 149                         directory = string.IsNullOrWhiteSpace (xml.DirectoryPath) ? System.IO.Directory.GetCurrentDirectory () : xml.DirectoryPath;
 150                         InitialTargets = xml.InitialTargets.Split (item_target_sep, StringSplitOptions.RemoveEmptyEntries).Select (s => s.Trim ()).ToList ();
 151
 152                         raw_imports = new List<ResolvedImport> ();
 153                         item_definitions = new Dictionary<string, ProjectItemDefinitionInstance> ();
 154                         targets = new Dictionary<string, ProjectTargetInstance> ();
 155                         raw_items = new List<ProjectItemInstance> ();
 156
 157                         properties = new Dictionary<string,ProjectPropertyInstance> ();
 158
 159                         foreach (DictionaryEntry p in Environment.GetEnvironmentVariables ())
 160                                 // FIXME: this is kind of workaround for unavoidable issue that PLATFORM=* is actually given
 161                                 // on some platforms and that prevents setting default "PLATFORM=AnyCPU" property.
 162                                 if (!string.Equals ("PLATFORM", (string) p.Key, StringComparison.OrdinalIgnoreCase))
 163                                         this.properties [(string) p.Key] = new ProjectPropertyInstance ((string) p.Key, true, (string) p.Value);
 164                         foreach (var p in global_properties)
 165                                 this.properties [p.Key] = new ProjectPropertyInstance (p.Key, false, p.Value);
 166                         var tools = projects.GetToolset (tools_version) ?? projects.GetToolset (projects.DefaultToolsVersion);
 167                         foreach (var p in projects.GetReservedProperties (tools, this, xml))
 168                                 this.properties [p.Name] = p;
 169                         foreach (var p in ProjectCollection.GetWellKnownProperties (this))
 170                                 this.properties [p.Name] = p;
 171
 172                         ProcessXml (xml);
 173
 174                         DefaultTargets = GetDefaultTargets (xml).ToList ();
 175                 }
 176
 177                 static readonly char [] item_target_sep = {';'};
 178
 179                 void ProcessXml (ProjectRootElement xml)
 180                 {
 181                         UsingTasks = new List<ProjectUsingTaskElement> ();
 182
 183                         // this needs to be initialized here (regardless of that items won't be evaluated at property evaluation;
 184                         // Conditions could incorrectly reference items and lack of this list causes NRE.
 185                         all_evaluated_items = new List<ProjectItemInstance> ();
 186
 187                         // property evaluation happens couple of times.
 188                         // At first step, all non-imported properties are evaluated TOO, WHILE those properties are being evaluated.
 189                         // This means, Include and IncludeGroup elements with Condition attribute MAY contain references to
 190                         // properties and they will be expanded.
 191                         var elements = EvaluatePropertiesAndUsingTasksAndImportsAndChooses (xml.Children).ToArray (); // ToArray(): to not lazily evaluate elements.
 192
 193                         // next, evaluate items
 194                         EvaluateItems (xml, elements);
 195
 196                         // finally, evaluate targets and tasks
 197                         EvaluateTargets (elements);
 198                 }
 199
 200                 IEnumerable<ProjectElement> EvaluatePropertiesAndUsingTasksAndImportsAndChooses (IEnumerable<ProjectElement> elements)
 201                 {
 202                         foreach (var child in elements) {
 203                                 yield return child;
 204
 205                                 var ute = child as ProjectUsingTaskElement;
 206                                 if (ute != null && EvaluateCondition (ute.Condition))
 207                                         UsingTasks.Add (ute);
 208
 209                                 var pge = child as ProjectPropertyGroupElement;
 210                                 if (pge != null && EvaluateCondition (pge.Condition))
 211                                         foreach (var p in pge.Properties)
 212                                                 // do not allow overwriting reserved or well-known properties by user
 213                                                 if (!this.properties.Any (_ => (_.Value.IsImmutable) && _.Key.Equals (p.Name, StringComparison.InvariantCultureIgnoreCase)))
 214                                                         if (EvaluateCondition (p.Condition))
 215                                                                 this.properties [p.Name] = new ProjectPropertyInstance (p.Name, false, ExpandString (p.Value));
 216
 217                                 var ige = child as ProjectImportGroupElement;
 218                                 if (ige != null && EvaluateCondition (ige.Condition)) {
 219                                         foreach (var incc in ige.Imports) {
 220                                                 if (EvaluateCondition (incc.Condition))
 221                                                         foreach (var e in Import (incc))
 222                                                                 yield return e;
 223                                         }
 224                                 }
 225
 226                                 var inc = child as ProjectImportElement;
 227                                 if (inc != null && EvaluateCondition (inc.Condition))
 228                                         foreach (var e in Import (inc))
 229                                                 yield return e;
 230                                 var choose = child as ProjectChooseElement;
 231                                 if (choose != null && EvaluateCondition (choose.Condition)) {
 232                                         bool done = false;
 233                                         foreach (ProjectWhenElement when in choose.WhenElements)
 234                                                 if (EvaluateCondition (when.Condition)) {
 235                                                         foreach (var e in EvaluatePropertiesAndUsingTasksAndImportsAndChooses (when.Children))
 236                                                                 yield return e;
 237                                                         done = true;
 238                                                         break;
 239                                                 }
 240                                         if (!done && choose.OtherwiseElement != null)
 241                                                 foreach (var e in EvaluatePropertiesAndUsingTasksAndImportsAndChooses (choose.OtherwiseElement.Children))
 242                                                         yield return e;
 243                                 }
 244                         }
 245                 }
 246
 247                 internal IEnumerable<T> GetAllItems<T> (string include, string exclude, Func<string,T> creator, Func<string,ITaskItem> taskItemCreator, Func<string,bool> itemTypeCheck, Action<T,string> assignRecurse)
 248                 {
 249                         return ProjectCollection.GetAllItems<T> (ExpandString, include, exclude, creator, taskItemCreator, Directory, assignRecurse,
 250                                 t => all_evaluated_items.Any (i => i.EvaluatedInclude == t.ItemSpec && itemTypeCheck (i.ItemType)));
 251                 }
 252
 253                 void EvaluateItems (ProjectRootElement xml, IEnumerable<ProjectElement> elements)
 254                 {
 255                         foreach (var child in elements.Reverse ()) {
 256                                 var ige = child as ProjectItemGroupElement;
 257                                 if (ige != null) {
 258                                         foreach (var p in ige.Items) {
 259                                                 if (!EvaluateCondition (ige.Condition) || !EvaluateCondition (p.Condition))
 260                                                         continue;
 261                                                 Func<string,ProjectItemInstance> creator = s => new ProjectItemInstance (this, p.ItemType, p.Metadata.Select (m => new KeyValuePair<string,string> (m.Name, m.Value)).ToList (), s);
 262                                                 foreach (var item in GetAllItems (p.Include, p.Exclude, creator, s => new ProjectTaskItem (p, s), it => string.Equals (it, p.ItemType, StringComparison.OrdinalIgnoreCase), (t, s) => t.RecursiveDir = s)) {
 263                                                         raw_items.Add (item);
 264                                                         all_evaluated_items.Add (item);
 265                                                 }
 266                                         }
 267                                 }
 268                                 var def = child as ProjectItemDefinitionGroupElement;
 269                                 if (def != null) {
 270                                         foreach (var p in def.ItemDefinitions) {
 271                                                 if (EvaluateCondition (p.Condition)) {
 272                                                         ProjectItemDefinitionInstance existing;
 273                                                         if (!item_definitions.TryGetValue (p.ItemType, out existing))
 274                                                                 item_definitions.Add (p.ItemType, (existing = new ProjectItemDefinitionInstance (p)));
 275                                                         existing.AddItems (p);
 276                                                 }
 277                                         }
 278                                 }
 279                         }
 280                         all_evaluated_items.Sort ((p1, p2) => string.Compare (p1.ItemType, p2.ItemType, StringComparison.OrdinalIgnoreCase));
 281                 }
 282
 283                 void EvaluateTargets (IEnumerable<ProjectElement> elements)
 284                 {
 285                         foreach (var child in elements) {
 286                                 var te = child as ProjectTargetElement;
 287                                 if (te != null)
 288                                         // It overwrites same name target.
 289                                         this.targets [te.Name] = new ProjectTargetInstance (te);
 290                         }
 291                 }
 292
 293                 IEnumerable<ProjectElement> Import (ProjectImportElement import)
 294                 {
 295                         string dir = projects.GetEvaluationTimeThisFileDirectory (() => FullPath);
 296                         // FIXME: use appropriate logger (but cannot be instantiated here...?)
 297                         string path = ProjectCollection.FindFileInSeveralExtensionsPath (ref extensions_path_override, ExpandString, import.Project, TextWriter.Null.WriteLine);
 298                         path = Path.IsPathRooted (path) ? path : dir != null ? Path.Combine (dir, path) : Path.GetFullPath (path);
 299                         if (projects.OngoingImports.Contains (path))
 300                                 throw new InvalidProjectFileException (import.Location, null, string.Format ("Circular imports was detected: {0} is already on \"importing\" stack", path));
 301                         projects.OngoingImports.Push (path);
 302                         try {
 303                                 using (var reader = XmlReader.Create (path)) {
 304                                         var root = ProjectRootElement.Create (reader, projects);
 305                                         raw_imports.Add (new ResolvedImport (import, root, true));
 306                                         return this.EvaluatePropertiesAndUsingTasksAndImportsAndChooses (root.Children).ToArray ();
 307                                 }
 308                         } finally {
 309                                 projects.OngoingImports.Pop ();
 310                         }
 311                 }
 312
 313                 internal IEnumerable<ProjectItemInstance> AllEvaluatedItems {
 314                         get { return all_evaluated_items; }
 315                 }
 316
 317                 public List<string> DefaultTargets { get; private set; }
 318
 319                 public string Directory {
 320                         get { return directory; }
 321                 }
 322
 323                 public string FullPath {
 324                         get { return full_path; }
 325                 }
 326
 327                 public IDictionary<string, string> GlobalProperties {
 328                         get { return global_properties; }
 329                 }
 330
 331                 public List<string> InitialTargets { get; private set; }
 332
 333                 public bool IsImmutable {
 334                         get { throw new NotImplementedException (); }
 335                 }
 336
 337                 public IDictionary<string, ProjectItemDefinitionInstance> ItemDefinitions {
 338                         get { return item_definitions; }
 339                 }
 340
 341                 public ICollection<ProjectItemInstance> Items {
 342                         get { return all_evaluated_items; }
 343                 }
 344
 345                 public ICollection<string> ItemTypes {
 346                         get { return all_evaluated_items.Select (i => i.ItemType).Distinct ().ToArray (); }
 347                 }
 348
 349                 public ElementLocation ProjectFileLocation {
 350                         get { return location; }
 351                 }
 352
 353                 public ICollection<ProjectPropertyInstance> Properties {
 354                         get { return properties.Values; }
 355                 }
 356
 357                 public
 358                 IDictionary<string, ProjectTargetInstance> Targets {
 359                         get { return targets; }
 360                 }
 361
 362                 public string ToolsVersion {
 363                         get { return tools_version; }
 364                 }
 365
 366                 public ProjectItemInstance AddItem (string itemType, string evaluatedInclude)
 367                 {
 368                         return AddItem (itemType, evaluatedInclude, new KeyValuePair<string, string> [0]);
 369                 }
 370
 371                 public ProjectItemInstance AddItem (string itemType, string evaluatedInclude, IEnumerable<KeyValuePair<string, string>> metadata)
 372                 {
 373                         var item = new ProjectItemInstance (this, itemType, metadata, evaluatedInclude);
 374                         raw_items.Add (item);
 375                         all_evaluated_items.Add (item);
 376                         return item;
 377                 }
 378
 379                 public bool Build ()
 380                 {
 381                         return Build (new ILogger [0]);
 382                 }
 383
 384                 public bool Build (IEnumerable<ILogger> loggers)
 385                 {
 386                         return Build (loggers, new ForwardingLoggerRecord [0]);
 387                 }
 388
 389                 public bool Build (IEnumerable<ILogger> loggers, IEnumerable<ForwardingLoggerRecord> remoteLoggers)
 390                 {
 391                         return Build (DefaultTargets.ToArray (), loggers, remoteLoggers);
 392                 }
 393
 394                 public bool Build (string target, IEnumerable<ILogger> loggers)
 395                 {
 396                         return Build (target, loggers, new ForwardingLoggerRecord [0]);
 397                 }
 398
 399                 public bool Build (string [] targets, IEnumerable<ILogger> loggers)
 400                 {
 401                         return Build (targets, loggers, new ForwardingLoggerRecord [0]);
 402                 }
 403
 404                 public bool Build (string target, IEnumerable<ILogger> loggers, IEnumerable<ForwardingLoggerRecord> remoteLoggers)
 405                 {
 406                         return Build (new string [] {target}, loggers, remoteLoggers);
 407                 }
 408
 409                 public bool Build (string [] targets, IEnumerable<ILogger> loggers, IEnumerable<ForwardingLoggerRecord> remoteLoggers)
 410                 {
 411                         IDictionary<string, TargetResult> outputs;
 412                         return Build (targets, loggers, remoteLoggers, out outputs);
 413                 }
 414
 415                 public bool Build (string[] targets, IEnumerable<ILogger> loggers, out IDictionary<string, TargetResult> targetOutputs)
 416                 {
 417                         return Build (targets, loggers, new ForwardingLoggerRecord [0], out targetOutputs);
 418                 }
 419
 420                 public bool Build (string[] targets, IEnumerable<ILogger> loggers, IEnumerable<ForwardingLoggerRecord> remoteLoggers, out IDictionary<string, TargetResult> targetOutputs)
 421                 {
 422                         var manager = new BuildManager ();
 423                         var parameters = new BuildParameters (projects) {
 424                                 ForwardingLoggers = remoteLoggers,
 425                                 Loggers = loggers,
 426                                 DefaultToolsVersion = projects.DefaultToolsVersion,
 427                         };
 428                         var requestData = new BuildRequestData (this, targets ?? DefaultTargets.ToArray ());
 429                         var result = manager.Build (parameters, requestData);
 430                         manager.Dispose ();
 431                         targetOutputs = result.ResultsByTarget;
 432                         return result.OverallResult == BuildResultCode.Success;
 433                 }
 434
 435                 public ProjectInstance DeepCopy ()
 436                 {
 437                         return DeepCopy (false);
 438                 }
 439
 440                 public ProjectInstance DeepCopy (bool isImmutable)
 441                 {
 442                         throw new NotImplementedException ();
 443                 }
 444
 445                 public bool EvaluateCondition (string condition)
 446                 {
 447                         return string.IsNullOrWhiteSpace (condition) || new ExpressionEvaluator (this).EvaluateAsBoolean (condition);
 448                 }
 449
 450                 public string ExpandString (string unexpandedValue)
 451                 {
 452                         return WindowsCompatibilityExtensions.NormalizeFilePath (new ExpressionEvaluator (this).Evaluate (unexpandedValue));
 453                 }
 454
 455                 internal string ExpandString (ExpressionEvaluator evaluator, string unexpandedValue)
 456                 {
 457                         return WindowsCompatibilityExtensions.NormalizeFilePath (evaluator.Evaluate (unexpandedValue));
 458                 }
 459
 460                 public ICollection<ProjectItemInstance> GetItems (string itemType)
 461                 {
 462                         return new CollectionFromEnumerable<ProjectItemInstance> (Items.Where (p => p.ItemType.Equals (itemType, StringComparison.OrdinalIgnoreCase)));
 463                 }
 464
 465                 public IEnumerable<ProjectItemInstance> GetItemsByItemTypeAndEvaluatedInclude (string itemType, string evaluatedInclude)
 466                 {
 467                         throw new NotImplementedException ();
 468                 }
 469
 470                 string extensions_path_override;
 471
 472                 public ProjectPropertyInstance GetProperty (string name)
 473                 {
 474                         if (extensions_path_override != null && (name.Equals ("MSBuildExtensionsPath") || name.Equals ("MSBuildExtensionsPath32") || name.Equals ("MSBuildExtensionsPath64")))
 475                                 return new ProjectPropertyInstance (name, true, extensions_path_override);
 476                         return properties.Values.FirstOrDefault (p => p.Name.Equals (name, StringComparison.OrdinalIgnoreCase));
 477                 }
 478
 479                 public string GetPropertyValue (string name)
 480                 {
 481                         var prop = GetProperty (name);
 482                         return prop != null ? prop.EvaluatedValue : string.Empty;
 483                 }
 484
 485                 public bool RemoveItem (ProjectItemInstance item)
 486                 {
 487                         // yeah, this raw_items should vanish...
 488                         raw_items.Remove (item);
 489                         return all_evaluated_items.Remove (item);
 490                 }
 491
 492                 public bool RemoveProperty (string name)
 493                 {
 494                         var removed = properties.Values.FirstOrDefault (p => p.Name.Equals (name, StringComparison.OrdinalIgnoreCase));
 495                         if (removed == null)
 496                                 return false;
 497                         properties.Remove (name);
 498                         return true;
 499                 }
 500
 501                 public ProjectPropertyInstance SetProperty (string name, string evaluatedValue)
 502                 {
 503                         var p = new ProjectPropertyInstance (name, false, evaluatedValue);
 504                         properties [p.Name] = p;
 505                         return p;
 506                 }
 507
 508                 public ProjectRootElement ToProjectRootElement ()
 509                 {
 510                         throw new NotImplementedException ();
 511                 }
 512
 513                 public void UpdateStateFrom (ProjectInstance projectState)
 514                 {
 515                         throw new NotImplementedException ();
 516                 }
 517
 518                 // static members
 519
 520                 public static string GetEvaluatedItemIncludeEscaped (ProjectItemDefinitionInstance item)
 521                 {
 522                         // ?? ItemDefinition does not have Include attribute. What's the point here?
 523                         throw new NotImplementedException ();
 524                 }
 525
 526                 public static string GetEvaluatedItemIncludeEscaped (ProjectItemInstance item)
 527                 {
 528                         return ProjectCollection.Escape (item.EvaluatedInclude);
 529                 }
 530
 531                 public static string GetMetadataValueEscaped (ProjectMetadataInstance metadatum)
 532                 {
 533                         return ProjectCollection.Escape (metadatum.EvaluatedValue);
 534                 }
 535
 536                 public static string GetMetadataValueEscaped (ProjectItemDefinitionInstance item, string name)
 537                 {
 538                         var md = item.Metadata.FirstOrDefault (m => m.Name.Equals (name, StringComparison.OrdinalIgnoreCase));
 539                         return md != null ? ProjectCollection.Escape (md.EvaluatedValue) : null;
 540                 }
 541
 542                 public static string GetMetadataValueEscaped (ProjectItemInstance item, string name)
 543                 {
 544                         var md = item.Metadata.FirstOrDefault (m => m.Name.Equals (name, StringComparison.OrdinalIgnoreCase));
 545                         return md != null ? ProjectCollection.Escape (md.EvaluatedValue) : null;
 546                 }
 547
 548                 public static string GetPropertyValueEscaped (ProjectPropertyInstance property)
 549                 {
 550                         // WTF happens here.
 551                         //return ProjectCollection.Escape (property.EvaluatedValue);
 552                         return property.EvaluatedValue;
 553                 }
 554
 555                 internal List<ProjectUsingTaskElement> UsingTasks { get; private set; }
 556
 557                 internal string GetFullPath (string pathRelativeToProject)
 558                 {
 559                         if (Path.IsPathRooted (pathRelativeToProject))
 560                                 return pathRelativeToProject;
 561                         return Path.GetFullPath (Path.Combine (Directory, pathRelativeToProject));
 562                 }
 563         }
 564 }
 565