Initial Bazel file resolver support.

pkg/analysis_server/lib/src/analysis_server.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:core' hide Resource;
 import 'dart:math' show max;
@@ skipping 277 matching lines @@
    */
   final AnalysisOptionsImpl defaultContextOptions = new AnalysisOptionsImpl();
 
   /**
    * The controller for sending [ContextsChangedEvent]s.
    */
   StreamController<ContextsChangedEvent> _onContextsChangedController =
       new StreamController<ContextsChangedEvent>.broadcast();
 
   /**
+   * The file resolver provider used to override the way file URI's are
+   * resolved in some contexts.
+   */
+  ResolverProvider fileResolverProvider;
+
+  /**
    * Initialize a newly created server to receive requests from and send
    * responses to the given [channel].
    *
    * If [rethrowExceptions] is true, then any exceptions thrown by analysis are
    * propagated up the call stack.  The default is true to allow analysis
    * exceptions to show up in unit tests, but it should be set to false when
    * running a full analysis server.
    */
   AnalysisServer(
       this.channel,
       this.resourceProvider,
       PubPackageMapProvider packageMapProvider,
       Index _index,
       this.serverPlugin,
       this.options,
       this.defaultSdkCreator,
       this.instrumentationService,
-      {ResolverProvider packageResolverProvider: null,
+      {ResolverProvider fileResolverProvider: null,
+      ResolverProvider packageResolverProvider: null,
       bool useSingleContextManager: false,
       this.rethrowExceptions: true})
       : index = _index,
         searchEngine = _index != null ? new SearchEngineImpl(_index) : null {
     _performance = performanceDuringStartup;
     defaultContextOptions.incremental = true;
     defaultContextOptions.incrementalApi =
         options.enableIncrementalResolutionApi;
     defaultContextOptions.incrementalValidation =
         options.enableIncrementalResolutionValidation;
     defaultContextOptions.generateImplicitErrors = false;
     operationQueue = new ServerOperationQueue();
     sdkManager = new DartSdkManager(defaultSdkCreator);
     if (useSingleContextManager) {
       contextManager = new SingleContextManager(resourceProvider, sdkManager,
           packageResolverProvider, analyzedFilesGlobs, defaultContextOptions);
     } else {
       contextManager = new ContextManagerImpl(
           resourceProvider,
           sdkManager,
           packageResolverProvider,
           packageMapProvider,
           analyzedFilesGlobs,
           instrumentationService,
           defaultContextOptions);
     }
+    this.fileResolverProvider = fileResolverProvider;
     ServerContextManagerCallbacks contextManagerCallbacks =
         new ServerContextManagerCallbacks(this, resourceProvider);
     contextManager.callbacks = contextManagerCallbacks;
     _noErrorNotification = options.noErrorNotification;
     AnalysisEngine.instance.logger = new AnalysisLogger(this);
     _onAnalysisStartedController = new StreamController.broadcast();
     _onFileAnalyzedController = new StreamController.broadcast();
     _onPriorityChangeController =
         new StreamController<PriorityChangeEvent>.broadcast();
     running = true;
@@ skipping 1197 matching lines @@
 
   ServerContextManagerCallbacks(this.analysisServer, this.resourceProvider);
 
   @override
   AnalysisContext addContext(
       Folder folder, AnalysisOptions options, FolderDisposition disposition) {
     InternalAnalysisContext context =
         AnalysisEngine.instance.createAnalysisContext();
     context.contentCache = analysisServer.overlayState;
     analysisServer.folderMap[folder] = context;
+    context.fileResolverProvider = analysisServer.fileResolverProvider;
     context.sourceFactory =
         _createSourceFactory(context, options, disposition, folder);
     context.analysisOptions = options;
     analysisServer._onContextsChangedController
         .add(new ContextsChangedEvent(added: [context]));
     analysisServer.schedulePerformAnalysisOperation(context);
+
     return context;
   }
 
   @override
   void applyChangesToContext(Folder contextFolder, ChangeSet changeSet) {
     AnalysisContext context = analysisServer.folderMap[contextFolder];
     if (context != null) {
       ApplyChangesStatus changesStatus = context.applyChanges(changeSet);
       if (changesStatus.hasChanges) {
         analysisServer.schedulePerformAnalysisOperation(context);
@@ skipping 55 matching lines @@
       // The embedder file has no mappings, so use the default Dart SDK.
       resolvers.add(new DartUriResolver(
           analysisServer.sdkManager.getSdkForOptions(options)));
     } else {
       // The embedder uri resolver has mappings, use it instead of the default
       // Dart SDK uri resolver.
       resolvers.add(new DartUriResolver(sdk));
     }
 
     resolvers.addAll(packageUriResolvers);
-    resolvers.add(new ResourceUriResolver(resourceProvider));
+    if (context.fileResolverProvider == null) {
+      resolvers.add(new ResourceUriResolver(resourceProvider));
+    } else {
+      resolvers.add(context.fileResolverProvider(folder));
+    }
     return new SourceFactory(resolvers, disposition.packages);
   }
 }
 
 /**
  * A class used by [AnalysisServer] to record performance information
  * such as request latency.
  */
 class ServerPerformance {
   /**
@@ skipping 85 matching lines @@
   /**
    * The [PerformanceTag] for time spent in server request handlers.
    */
   static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
 
   /**
    * The [PerformanceTag] for time spent in split store microtasks.
    */
   static PerformanceTag splitStore = new PerformanceTag('splitStore');
 }