State-carrying context API.

pkg/analyzer/lib/src/context/context.dart

 // Copyright (c) 2015, 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 analyzer.src.context.context;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/instrumentation/instrumentation.dart';
@@ skipping 97 matching lines @@
    */
   CachePartition _privatePartition;
 
   /**
    * The cache in which information about the results associated with targets
    * are stored.
    */
   AnalysisCache _cache;
 
   /**
+   * Configuration data associated with this context.
+   */
+  final HashMap<ResultDescriptor, Object> _configurationData =
+      new HashMap<ResultDescriptor, Object>();
+
+  /**
    * The task manager used to manage the tasks used to analyze code.
    */
   TaskManager _taskManager;
 
   /**
    * A list of all [WorkManager]s used by this context.
    */
   final List<WorkManager> workManagers = <WorkManager>[];
 
   /**
@@ skipping 629 matching lines @@
   }
 
   @override
   CompilationUnitElement getCompilationUnitElement(
       Source unitSource, Source librarySource) {
     AnalysisTarget target = new LibrarySpecificUnit(librarySource, unitSource);
     return getResult(target, COMPILATION_UNIT_ELEMENT);
   }
 
   @override
+  Object getConfigurationData(ResultDescriptor key) => _configurationData[key];
+
+  @override
   TimestampedData<String> getContents(Source source) {
     String contents = _contentCache.getContents(source);
     if (contents != null) {
       return new TimestampedData<String>(
           _contentCache.getModificationStamp(source), contents);
     }
     return source.contents;
   }
 
   @override
@@ skipping 417 matching lines @@
   @override
   void setChangedContents(Source source, String contents, int offset,
       int oldLength, int newLength) {
     if (_contentRangeChanged(source, contents, offset, oldLength, newLength)) {
       _onSourcesChangedController.add(new SourcesChangedEvent.changedRange(
           source, contents, offset, oldLength, newLength));
     }
   }
 
   @override
+  void setConfigurationData(ResultDescriptor key, Object data) {
+    _configurationData[key] = data;
+  }
+
+  @override
   void setContents(Source source, String contents) {
     _contentsChanged(source, contents, true);
   }
 
   @override
   bool shouldErrorsBeAnalyzed(Source source, Object entry) {
     CacheEntry entry = analysisCache.get(source);
     if (source.isInSystemLibrary) {
       return _options.generateSdkErrors;
     } else if (!entry.explicitlyAdded) {
@@ skipping 875 matching lines @@
         new PendingFuture<T>(_context, target, computeValue);
     if (!pendingFuture.evaluate(entry)) {
       _context._pendingFutureTargets
           .putIfAbsent(target, () => <PendingFuture>[])
           .add(pendingFuture);
       scheduleComputation();
     }
     return pendingFuture.future;
   }
 }