Extension point for WorkManagerFactory(s).

pkg/analyzer/lib/src/task/html_work_manager.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.task.html_work_manager;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/engine.dart'
     show
         AnalysisEngine,
         AnalysisErrorInfo,
         AnalysisErrorInfoImpl,
         AnalysisOptions,
         CacheState,
         InternalAnalysisContext;
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/utilities_collection.dart';
 import 'package:analyzer/src/task/driver.dart';
 import 'package:analyzer/src/task/html.dart';
-import 'package:analyzer/task/general.dart';
 import 'package:analyzer/task/html.dart';
 import 'package:analyzer/task/model.dart';
 
 /**
  * The manager for HTML specific analysis.
  */
 class HtmlWorkManager implements WorkManager {
   /**
    * The context for which work is being managed.
    */
@@ skipping 30 matching lines @@
       context.privateAnalysisCachePartition;
 
   /**
    * Specifies that the client want the given [result] of the given [target]
    * to be computed with priority.
    */
   void addPriorityResult(AnalysisTarget target, ResultDescriptor result) {
     priorityResultQueue.add(new TargetedResult(target, result));
   }
 
-  /**
-   * Notifies the manager about changes in the explicit source list.
-   */
+  @override
   void applyChange(List<Source> addedSources, List<Source> changedSources,
       List<Source> removedSources) {
     addedSources = addedSources.where(_isHtmlSource).toList();
     changedSources = changedSources.where(_isHtmlSource).toList();
     removedSources = removedSources.where(_isHtmlSource).toList();
     // source queue
     sourceQueue.addAll(addedSources);
     sourceQueue.addAll(changedSources);
     sourceQueue.removeAll(removedSources);
   }
 
   @override
   void applyPriorityTargets(List<AnalysisTarget> targets) {
     // Unschedule the old targets.
     List<TargetedResult> resultsToUnschedule = <TargetedResult>[];
     for (TargetedResult result in priorityResultQueue) {
       if (result.result == HTML_ERRORS) {
         resultsToUnschedule.add(result);
       }
     }
     priorityResultQueue.removeAll(resultsToUnschedule);
     // Schedule new targets.
     for (AnalysisTarget target in targets) {
       if (_isHtmlSource(target)) {
         addPriorityResult(target, HTML_ERRORS);
       }
     }
   }
 
-  /**
-   * Return an [AnalysisErrorInfo] containing the list of all of the errors and
-   * the line info associated with the given [source]. The list of errors will
-   * be empty if the source is not known to the context or if there are no
-   * errors in the source. The errors contained in the list can be incomplete.
-   */
-  AnalysisErrorInfo getErrors(Source source) {
+  @override
+  List<AnalysisError> getErrors(Source source) {
+    if (!_isHtmlSource(source)) {
+      return AnalysisError.NO_ERRORS;
+    }
+    // If analysis is finished, use all the errors.
     if (analysisCache.getState(source, HTML_ERRORS) == CacheState.VALID) {
-      List<AnalysisError> errors = analysisCache.getValue(source, HTML_ERRORS);
-      LineInfo lineInfo = analysisCache.getValue(source, LINE_INFO);
-      return new AnalysisErrorInfoImpl(errors, lineInfo);
+      return analysisCache.getValue(source, HTML_ERRORS);
     }
+    // If analysis is in progress, combine all known partial results.
     List<AnalysisError> errors = <AnalysisError>[];
     errors.addAll(analysisCache.getValue(source, HTML_DOCUMENT_ERRORS));
     List<DartScript> scripts = analysisCache.getValue(source, DART_SCRIPTS);
     for (DartScript script in scripts) {
       errors.addAll(context.getErrors(script).errors);
     }
-    LineInfo lineInfo = analysisCache.getValue(source, LINE_INFO);
-    return new AnalysisErrorInfoImpl(errors, lineInfo);
+    return errors;
   }
 
   @override
   TargetedResult getNextResult() {
     // Try to find a priority result to compute.
     while (priorityResultQueue.isNotEmpty) {
       TargetedResult result = priorityResultQueue.first;
       if (!_needsComputing(result.target, result.result)) {
         priorityResultQueue.remove(result);
         continue;
@@ skipping 67 matching lines @@
           if (priorityResultQueue.contains(target)) {
             // TODO(brianwilkerson) Add the scripts to the DartWorkManager's
             // priority queue.
           } else {
             // TODO(brianwilkerson) Add the scripts to the DartWorkManager's
             // library queue.
           }
         }
       });
       if (shouldSetErrors) {
-        AnalysisErrorInfo info = getErrors(target);
+        AnalysisErrorInfo info = context.getErrors(target);
         context.getNotice(target).setErrors(info.errors, info.lineInfo);
       }
     }
   }
 
   /**
    * Invalidate all of the resolution results computed by this context. The flag
    * [invalidateUris] should be `true` if the cached results of converting URIs
    * to source files should also be invalidated.
    */
@@ skipping 34 matching lines @@
     return state != CacheState.VALID && state != CacheState.ERROR;
   }
 
   /**
    * Return `true` if the given target is an HTML source.
    */
   static bool _isHtmlSource(AnalysisTarget target) {
     return target is Source && AnalysisEngine.isHtmlFileName(target.fullName);
   }
 }