Strong mode local variable inference

pkg/analyzer/lib/src/generated/engine.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 engine;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:math' as math;
 
@@ skipping 1071 matching lines @@
   /**
    * A factory to override how [LibraryResolver] is created.
    */
   LibraryResolverFactory libraryResolverFactory;
 
   /**
    * Initialize a newly created analysis context.
    */
   AnalysisContextImpl() {
     _resultRecorder = new AnalysisContextImpl_AnalysisTaskResultRecorder(this);
-    _privatePartition = new UniversalCachePartition(this,
+    _privatePartition = new UniversalCachePartition(
+        this,
         AnalysisOptionsImpl.DEFAULT_CACHE_SIZE,
         new AnalysisContextImpl_ContextRetentionPolicy(this));
     _cache = createCacheFromSourceFactory(null);
     _onSourcesChangedController =
         new StreamController<SourcesChangedEvent>.broadcast();
     _implicitAnalysisEventsController =
         new StreamController<ImplicitAnalysisEvent>.broadcast();
   }
 
   @override
   AnalysisCache get analysisCache => _cache;
 
   @override
   AnalysisOptions get analysisOptions => _options;
 
   @override
   void set analysisOptions(AnalysisOptions options) {
     bool needsRecompute = this._options.analyzeFunctionBodiesPredicate !=
             options.analyzeFunctionBodiesPredicate ||
         this._options.generateImplicitErrors !=
             options.generateImplicitErrors ||
         this._options.generateSdkErrors != options.generateSdkErrors ||
         this._options.dart2jsHint != options.dart2jsHint ||
         (this._options.hint && !options.hint) ||
         this._options.preserveComments != options.preserveComments ||
+        this._options.strongMode != options.strongMode ||
         this._options.enableStrictCallChecks !=
             options.enableStrictCallChecks ||
         this._options.enableSuperMixins != options.enableSuperMixins;
     int cacheSize = options.cacheSize;
     if (this._options.cacheSize != cacheSize) {
       this._options.cacheSize = cacheSize;
       //cache.setMaxCacheSize(cacheSize);
       _privatePartition.maxCacheSize = cacheSize;
       //
       // Cap the size of the priority list to being less than the cache size.
@@ skipping 15 matching lines @@
     this._options.generateSdkErrors = options.generateSdkErrors;
     this._options.dart2jsHint = options.dart2jsHint;
     this._options.enableStrictCallChecks = options.enableStrictCallChecks;
     this._options.enableSuperMixins = options.enableSuperMixins;
     this._options.hint = options.hint;
     this._options.incremental = options.incremental;
     this._options.incrementalApi = options.incrementalApi;
     this._options.incrementalValidation = options.incrementalValidation;
     this._options.lint = options.lint;
     this._options.preserveComments = options.preserveComments;
+    this._options.strongMode = options.strongMode;
     _generateImplicitErrors = options.generateImplicitErrors;
     _generateSdkErrors = options.generateSdkErrors;
     if (needsRecompute) {
       _invalidateAllLocalResolutionInformation(false);
     }
   }
 
   @override
   void set analysisPriorityOrder(List<Source> sources) {
     if (sources == null || sources.isEmpty) {
@@ skipping 478 matching lines @@
       List<AnalysisError> errors = new List<AnalysisError>();
       try {
         DartEntry dartEntry = sourceEntry;
         ListUtilities.addAll(
             errors, _getDartScanData(source, dartEntry, DartEntry.SCAN_ERRORS));
         dartEntry = _getReadableDartEntry(source);
         ListUtilities.addAll(errors,
             _getDartParseData(source, dartEntry, DartEntry.PARSE_ERRORS));
         dartEntry = _getReadableDartEntry(source);
         if (dartEntry.getValue(DartEntry.SOURCE_KIND) == SourceKind.LIBRARY) {
-          ListUtilities.addAll(errors, _getDartResolutionData(
-              source, source, dartEntry, DartEntry.RESOLUTION_ERRORS));
+          ListUtilities.addAll(
+              errors,
+              _getDartResolutionData(
+                  source, source, dartEntry, DartEntry.RESOLUTION_ERRORS));
           dartEntry = _getReadableDartEntry(source);
-          ListUtilities.addAll(errors, _getDartVerificationData(
-              source, source, dartEntry, DartEntry.VERIFICATION_ERRORS));
+          ListUtilities.addAll(
+              errors,
+              _getDartVerificationData(
+                  source, source, dartEntry, DartEntry.VERIFICATION_ERRORS));
           if (enableHints) {
             dartEntry = _getReadableDartEntry(source);
             ListUtilities.addAll(errors,
                 _getDartHintData(source, source, dartEntry, DartEntry.HINTS));
           }
           if (enableLints) {
             dartEntry = _getReadableDartEntry(source);
             ListUtilities.addAll(errors,
                 _getDartLintData(source, source, dartEntry, DartEntry.LINTS));
           }
         } else {
           List<Source> libraries = getLibrariesContaining(source);
           for (Source librarySource in libraries) {
-            ListUtilities.addAll(errors, _getDartResolutionData(
-                source, librarySource, dartEntry, DartEntry.RESOLUTION_ERRORS));
+            ListUtilities.addAll(
+                errors,
+                _getDartResolutionData(source, librarySource, dartEntry,
+                    DartEntry.RESOLUTION_ERRORS));
             dartEntry = _getReadableDartEntry(source);
-            ListUtilities.addAll(errors, _getDartVerificationData(source,
-                librarySource, dartEntry, DartEntry.VERIFICATION_ERRORS));
+            ListUtilities.addAll(
+                errors,
+                _getDartVerificationData(source, librarySource, dartEntry,
+                    DartEntry.VERIFICATION_ERRORS));
             if (enableHints) {
               dartEntry = _getReadableDartEntry(source);
-              ListUtilities.addAll(errors, _getDartHintData(
-                  source, librarySource, dartEntry, DartEntry.HINTS));
+              ListUtilities.addAll(
+                  errors,
+                  _getDartHintData(
+                      source, librarySource, dartEntry, DartEntry.HINTS));
             }
             if (enableLints) {
               dartEntry = _getReadableDartEntry(source);
-              ListUtilities.addAll(errors, _getDartLintData(
-                  source, librarySource, dartEntry, DartEntry.LINTS));
+              ListUtilities.addAll(
+                  errors,
+                  _getDartLintData(
+                      source, librarySource, dartEntry, DartEntry.LINTS));
             }
           }
         }
       } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
         AnalysisEngine.instance.logger.logInformation(
             "Could not compute errors",
             new CaughtException(exception, stackTrace));
       }
       if (errors.isEmpty) {
         return AnalysisError.NO_ERRORS;
@@ skipping 75 matching lines @@
       throw new AnalysisException(
           "Internal error: computeResolvableCompilationUnit could not parse ${source.fullName}",
           new CaughtException(dartEntry.exception, null));
     }
     return unit;
   }
 
   @override
   CancelableFuture<CompilationUnit> computeResolvedCompilationUnitAsync(
       Source unitSource, Source librarySource) {
-    return new _AnalysisFutureHelper<CompilationUnit>(this).computeAsync(
-        unitSource, (SourceEntry sourceEntry) {
+    return new _AnalysisFutureHelper<CompilationUnit>(this)
+        .computeAsync(unitSource, (SourceEntry sourceEntry) {
       if (sourceEntry is DartEntry) {
         if (sourceEntry.getStateInLibrary(
                 DartEntry.RESOLVED_UNIT, librarySource) ==
             CacheState.ERROR) {
           throw sourceEntry.exception;
         }
         return sourceEntry.getValueInLibrary(
             DartEntry.RESOLVED_UNIT, librarySource);
       }
       throw new AnalysisNotScheduledError();
@@ skipping 320 matching lines @@
     Namespace namespace = null;
     if (identical(dartEntry.getValue(DartEntry.ELEMENT), library)) {
       namespace = dartEntry.getValue(DartEntry.PUBLIC_NAMESPACE);
     }
     if (namespace == null) {
       NamespaceBuilder builder = new NamespaceBuilder();
       namespace = builder.createPublicNamespaceForLibrary(library);
       if (dartEntry == null) {
         AnalysisEngine.instance.logger.logError(
             "Could not compute the public namespace for ${library.source.fullName}",
-            new CaughtException(new AnalysisException(
+            new CaughtException(
+                new AnalysisException(
                     "A Dart file became a non-Dart file: ${source.fullName}"),
                 null));
         return null;
       }
       if (identical(dartEntry.getValue(DartEntry.ELEMENT), library)) {
         dartEntry.setValue(DartEntry.PUBLIC_NAMESPACE, namespace);
       }
     }
     return namespace;
   }
@@ skipping 174 matching lines @@
     }
     return PerformanceStatistics.performAnaysis.makeCurrentWhile(() {
       int getStart = JavaSystem.currentTimeMillis();
       AnalysisTask task = PerformanceStatistics.nextTask
           .makeCurrentWhile(() => nextAnalysisTask);
       int getEnd = JavaSystem.currentTimeMillis();
       if (task == null) {
         _validateLastIncrementalResolutionResult();
         if (_performAnalysisTaskStopwatch != null) {
           AnalysisEngine.instance.instrumentationService.logPerformance(
-              AnalysisPerformanceKind.FULL, _performAnalysisTaskStopwatch,
+              AnalysisPerformanceKind.FULL,
+              _performAnalysisTaskStopwatch,
               'context_id=$_id');
           _performAnalysisTaskStopwatch = null;
         }
         return new AnalysisResult(
             _getChangeNotices(true), getEnd - getStart, null, -1);
       }
       if (_performAnalysisTaskStopwatch == null) {
         _performAnalysisTaskStopwatch = new Stopwatch()..start();
       }
       String taskDescription = task.toString();
@@ skipping 233 matching lines @@
   CompilationUnit resolveCompilationUnit(
       Source unitSource, LibraryElement library) {
     if (library == null) {
       return null;
     }
     return resolveCompilationUnit2(unitSource, library.source);
   }
 
   @override
   CompilationUnit resolveCompilationUnit2(
-      Source unitSource, Source librarySource) => _getDartResolutionData2(
+          Source unitSource, Source librarySource) =>
+      _getDartResolutionData2(
           unitSource, librarySource, DartEntry.RESOLVED_UNIT, null);
 
   @override
   @deprecated
   ht.HtmlUnit resolveHtmlUnit(Source htmlSource) {
     computeHtmlElement(htmlSource);
     return parseHtmlUnit(htmlSource);
   }
 
   @override
@@ skipping 303 matching lines @@
     //
     // Check to see whether we already have the information being requested.
     //
     CacheState state = dartEntry.getState(descriptor);
     while (state != CacheState.ERROR && state != CacheState.VALID) {
       //
       // If not, compute the information. Unless the modification date of the
       // source continues to change, this loop will eventually terminate.
       //
       dartEntry = _cacheDartScanData(source, dartEntry, DartEntry.TOKEN_STREAM);
-      dartEntry = new ParseDartTask(this, source,
+      dartEntry = new ParseDartTask(
+              this,
+              source,
               dartEntry.getValue(DartEntry.TOKEN_STREAM),
               dartEntry.getValue(SourceEntry.LINE_INFO))
           .perform(_resultRecorder) as DartEntry;
       state = dartEntry.getState(descriptor);
     }
     return dartEntry;
   }
 
   /**
    * Given a source for a Dart file and the library that contains it, return a
@@ skipping 43 matching lines @@
     // Check to see whether we already have the information being requested.
     //
     CacheState state = dartEntry.getState(descriptor);
     while (state != CacheState.ERROR && state != CacheState.VALID) {
       //
       // If not, compute the information. Unless the modification date of the
       // source continues to change, this loop will eventually terminate.
       //
       try {
         if (dartEntry.getState(SourceEntry.CONTENT) != CacheState.VALID) {
-          dartEntry = new GetContentTask(this, source)
-              .perform(_resultRecorder) as DartEntry;
+          dartEntry = new GetContentTask(this, source).perform(_resultRecorder)
+              as DartEntry;
         }
         dartEntry = new ScanDartTask(
                 this, source, dartEntry.getValue(SourceEntry.CONTENT))
             .perform(_resultRecorder) as DartEntry;
       } on AnalysisException catch (exception) {
         throw exception;
       } catch (exception, stackTrace) {
         throw new AnalysisException(
             "Exception", new CaughtException(exception, stackTrace));
       }
@@ skipping 55 matching lines @@
     // Check to see whether we already have the information being requested.
     //
     CacheState state = htmlEntry.getState(descriptor);
     while (state != CacheState.ERROR && state != CacheState.VALID) {
       //
       // If not, compute the information. Unless the modification date of the
       // source continues to change, this loop will eventually terminate.
       //
       try {
         if (htmlEntry.getState(SourceEntry.CONTENT) != CacheState.VALID) {
-          htmlEntry = new GetContentTask(this, source)
-              .perform(_resultRecorder) as HtmlEntry;
+          htmlEntry = new GetContentTask(this, source).perform(_resultRecorder)
+              as HtmlEntry;
         }
         htmlEntry = new ParseHtmlTask(
                 this, source, htmlEntry.getValue(SourceEntry.CONTENT))
             .perform(_resultRecorder) as HtmlEntry;
       } on AnalysisException catch (exception) {
         throw exception;
       } catch (exception, stackTrace) {
         throw new AnalysisException(
             "Exception", new CaughtException(exception, stackTrace));
       }
@@ skipping 115 matching lines @@
    * event where as this method does not.
    */
   bool _contentRangeChanged(Source source, String contents, int offset,
       int oldLength, int newLength) {
     bool changed = false;
     String originalContents = _contentCache.setContents(source, contents);
     if (contents != null) {
       if (contents != originalContents) {
         if (_options.incremental) {
           _incrementalAnalysisCache = IncrementalAnalysisCache.update(
-              _incrementalAnalysisCache, source, originalContents, contents,
-              offset, oldLength, newLength, _getReadableSourceEntry(source));
+              _incrementalAnalysisCache,
+              source,
+              originalContents,
+              contents,
+              offset,
+              oldLength,
+              newLength,
+              _getReadableSourceEntry(source));
         }
         _sourceChanged(source);
         changed = true;
         SourceEntry sourceEntry = _cache.get(source);
         if (sourceEntry != null) {
           sourceEntry.modificationTime =
               _contentCache.getModificationStamp(source);
           sourceEntry.setValue(SourceEntry.CONTENT, contents);
         }
       }
@@ skipping 27 matching lines @@
   AnalysisContextImpl_TaskData _createGenerateDartErrorsTask(Source unitSource,
       DartEntry unitEntry, Source librarySource, DartEntry libraryEntry) {
     if (unitEntry.getStateInLibrary(DartEntry.RESOLVED_UNIT, librarySource) !=
             CacheState.VALID ||
         libraryEntry.getState(DartEntry.ELEMENT) != CacheState.VALID) {
       return _createResolveDartLibraryTask(librarySource, libraryEntry);
     }
     CompilationUnit unit =
         unitEntry.getValueInLibrary(DartEntry.RESOLVED_UNIT, librarySource);
     if (unit == null) {
-      CaughtException exception = new CaughtException(new AnalysisException(
+      CaughtException exception = new CaughtException(
+          new AnalysisException(
               "Entry has VALID state for RESOLVED_UNIT but null value for ${unitSource.fullName} in ${librarySource.fullName}"),
           null);
-      AnalysisEngine.instance.logger.logInformation(
-          exception.toString(), exception);
+      AnalysisEngine.instance.logger
+          .logInformation(exception.toString(), exception);
       unitEntry.recordResolutionError(exception);
       return new AnalysisContextImpl_TaskData(null, false);
     }
     LibraryElement libraryElement = libraryEntry.getValue(DartEntry.ELEMENT);
     return new AnalysisContextImpl_TaskData(
         new GenerateDartErrorsTask(this, unitSource, unit, libraryElement),
         false);
   }
 
   /**
@@ skipping 77 matching lines @@
    * Create a [ParseDartTask] for the given [source].
    */
   AnalysisContextImpl_TaskData _createParseDartTask(
       Source source, DartEntry dartEntry) {
     if (dartEntry.getState(DartEntry.TOKEN_STREAM) != CacheState.VALID ||
         dartEntry.getState(SourceEntry.LINE_INFO) != CacheState.VALID) {
       return _createScanDartTask(source, dartEntry);
     }
     Token tokenStream = dartEntry.getValue(DartEntry.TOKEN_STREAM);
     dartEntry.setState(DartEntry.TOKEN_STREAM, CacheState.FLUSHED);
-    return new AnalysisContextImpl_TaskData(new ParseDartTask(this, source,
-        tokenStream, dartEntry.getValue(SourceEntry.LINE_INFO)), false);
+    return new AnalysisContextImpl_TaskData(
+        new ParseDartTask(this, source, tokenStream,
+            dartEntry.getValue(SourceEntry.LINE_INFO)),
+        false);
   }
 
   /**
    * Create a [ParseHtmlTask] for the given [source].
    */
   AnalysisContextImpl_TaskData _createParseHtmlTask(
       Source source, HtmlEntry htmlEntry) {
     if (htmlEntry.getState(SourceEntry.CONTENT) != CacheState.VALID) {
       return _createGetContentTask(source, htmlEntry);
     }
@@ skipping 12 matching lines @@
     try {
       AnalysisContextImpl_CycleBuilder builder =
           new AnalysisContextImpl_CycleBuilder(this);
       PerformanceStatistics.cycles.makeCurrentWhile(() {
         builder.computeCycleContaining(source);
       });
       AnalysisContextImpl_TaskData taskData = builder.taskData;
       if (taskData != null) {
         return taskData;
       }
-      return new AnalysisContextImpl_TaskData(new ResolveDartLibraryCycleTask(
-          this, source, source, builder.librariesInCycle), false);
+      return new AnalysisContextImpl_TaskData(
+          new ResolveDartLibraryCycleTask(
+              this, source, source, builder.librariesInCycle),
+          false);
     } on AnalysisException catch (exception, stackTrace) {
       dartEntry
           .recordResolutionError(new CaughtException(exception, stackTrace));
       AnalysisEngine.instance.logger.logError(
           "Internal error trying to create a ResolveDartLibraryTask",
           new CaughtException(exception, stackTrace));
     }
     return new AnalysisContextImpl_TaskData(null, false);
   }
 
   /**
    * Create a [ResolveHtmlTask] for the given [source], marking the resolved
    * unit as being in-process.
    */
   AnalysisContextImpl_TaskData _createResolveHtmlTask(
       Source source, HtmlEntry htmlEntry) {
     if (htmlEntry.getState(HtmlEntry.PARSED_UNIT) != CacheState.VALID) {
       return _createParseHtmlTask(source, htmlEntry);
     }
-    return new AnalysisContextImpl_TaskData(new ResolveHtmlTask(this, source,
-        htmlEntry.modificationTime,
-        htmlEntry.getValue(HtmlEntry.PARSED_UNIT)), false);
+    return new AnalysisContextImpl_TaskData(
+        new ResolveHtmlTask(this, source, htmlEntry.modificationTime,
+            htmlEntry.getValue(HtmlEntry.PARSED_UNIT)),
+        false);
   }
 
   /**
    * Create a [ScanDartTask] for the given [source], marking the scan errors as
    * being in-process.
    */
   AnalysisContextImpl_TaskData _createScanDartTask(
       Source source, DartEntry dartEntry) {
     if (dartEntry.getState(SourceEntry.CONTENT) != CacheState.VALID) {
       return _createGetContentTask(source, dartEntry);
@@ skipping 323 matching lines @@
       _accessedAst(source);
     }
     return htmlEntry.getValue(descriptor);
   }
 
   /**
    * Look at the given [source] to see whether a task needs to be performed
    * related to it. Return the task that should be performed, or `null` if there
    * is no more work to be done for the source.
    */
-  AnalysisContextImpl_TaskData _getNextAnalysisTaskForSource(Source source,
-      SourceEntry sourceEntry, bool isPriority, bool hintsEnabled,
+  AnalysisContextImpl_TaskData _getNextAnalysisTaskForSource(
+      Source source,
+      SourceEntry sourceEntry,
+      bool isPriority,
+      bool hintsEnabled,
       bool lintsEnabled) {
     // Refuse to generate tasks for html based files that are above 1500 KB
     if (_isTooBigHtmlSourceEntry(source, sourceEntry)) {
       // TODO (jwren) we still need to report an error of some kind back to the
       // client.
       return new AnalysisContextImpl_TaskData(null, false);
     }
     if (sourceEntry == null) {
       return new AnalysisContextImpl_TaskData(null, false);
     }
@@ skipping 169 matching lines @@
    * the library defined by the given [librarySource], or `null` if the
    * information is not cached.
    */
   TimestampedData<CompilationUnit> _getResolvedUnit(
       CompilationUnitElement element, Source librarySource) {
     SourceEntry sourceEntry = _cache.get(element.source);
     if (sourceEntry is DartEntry) {
       DartEntry dartEntry = sourceEntry;
       if (dartEntry.getStateInLibrary(DartEntry.RESOLVED_UNIT, librarySource) ==
           CacheState.VALID) {
-        return new TimestampedData<CompilationUnit>(dartEntry.modificationTime,
+        return new TimestampedData<CompilationUnit>(
+            dartEntry.modificationTime,
             dartEntry.getValueInLibrary(
                 DartEntry.RESOLVED_UNIT, librarySource));
       }
     }
     return null;
   }
 
   /**
    * Return a list containing all of the sources known to this context that have
    * the given [kind].
    */
   List<Source> _getSources(SourceKind kind) {
     List<Source> sources = new List<Source>();
     MapIterator<Source, SourceEntry> iterator = _cache.iterator();
     while (iterator.moveNext()) {
       if (iterator.value.kind == kind) {
         sources.add(iterator.key);
       }
     }
     return sources;
   }
 
   /**
    * Look at the given [source] to see whether a task needs to be performed
    * related to it. If so, add the source to the set of sources that need to be
    * processed. This method duplicates, and must therefore be kept in sync with,
    * [_getNextAnalysisTaskForSource]. This method is intended to be used for
    * testing purposes only.
    */
-  void _getSourcesNeedingProcessing(Source source, SourceEntry sourceEntry,
-      bool isPriority, bool hintsEnabled, bool lintsEnabled,
+  void _getSourcesNeedingProcessing(
+      Source source,
+      SourceEntry sourceEntry,
+      bool isPriority,
+      bool hintsEnabled,
+      bool lintsEnabled,
       HashSet<Source> sources) {
     if (sourceEntry is DartEntry) {
       DartEntry dartEntry = sourceEntry;
       CacheState scanErrorsState = dartEntry.getState(DartEntry.SCAN_ERRORS);
       if (scanErrorsState == CacheState.INVALID ||
           (isPriority && scanErrorsState == CacheState.FLUSHED)) {
         sources.add(source);
         return;
       }
       CacheState parseErrorsState = dartEntry.getState(DartEntry.PARSE_ERRORS);
@@ skipping 833 matching lines @@
       }
       // prepare the existing unit
       CompilationUnit oldUnit =
           getResolvedCompilationUnit2(unitSource, librarySource);
       if (oldUnit == null) {
         return false;
       }
       // do resolution
       Stopwatch perfCounter = new Stopwatch()..start();
       PoorMansIncrementalResolver resolver = new PoorMansIncrementalResolver(
-          typeProvider, unitSource, getReadableSourceEntryOrNull(unitSource),
-          null, null, oldUnit, analysisOptions.incrementalApi, analysisOptions);
+          typeProvider,
+          unitSource,
+          getReadableSourceEntryOrNull(unitSource),
+          null,
+          null,
+          oldUnit,
+          analysisOptions.incrementalApi,
+          analysisOptions);
       bool success = resolver.resolve(newCode);
       AnalysisEngine.instance.instrumentationService.logPerformance(
-          AnalysisPerformanceKind.INCREMENTAL, perfCounter,
+          AnalysisPerformanceKind.INCREMENTAL,
+          perfCounter,
           'success=$success,context_id=$_id,code_length=${newCode.length}');
       if (!success) {
         return false;
       }
       // if validation, remember the result, but throw it away
       if (analysisOptions.incrementalValidation) {
         incrementalResolutionValidation_lastUnitSource = oldUnit.element.source;
         incrementalResolutionValidation_lastLibrarySource =
             oldUnit.element.library.source;
         incrementalResolutionValidation_lastUnit = oldUnit;
@@ skipping 199 matching lines @@
     _librariesInCycle = _dependencyGraph.findCycleContaining(targetLibrary);
     //
     // Ensure that all of the data needed to resolve them has been computed.
     //
     _ensureImportsAndExports();
     if (_taskData != null) {
       // At least one imported library needs to be resolved before the target
       // library.
       AnalysisTask task = _taskData.task;
       if (task is ResolveDartLibraryTask) {
-        AnalysisContextImpl_this._workManager.addFirst(
-            task.librarySource, SourcePriority.LIBRARY);
+        AnalysisContextImpl_this._workManager
+            .addFirst(task.librarySource, SourcePriority.LIBRARY);
       }
       return;
     }
     _computePartsInCycle(librarySource);
     if (_taskData != null) {
       // At least one part needs to be parsed.
       return;
     }
     // All of the AST's necessary to perform a resolution of the library cycle
     // have been gathered, so it is no longer necessary to retain them in the
@@ skipping 207 matching lines @@
    * Ensure that the given [library] has an element model built for it. If
    * another task needs to be executed first in order to build the element
    * model, that task is placed in [taskData].
    */
   void _ensureElementModel(ResolvableLibrary library) {
     Source librarySource = library.librarySource;
     DartEntry libraryEntry =
         AnalysisContextImpl_this._getReadableDartEntry(librarySource);
     if (libraryEntry != null &&
         libraryEntry.getState(DartEntry.PARSED_UNIT) != CacheState.ERROR) {
-      AnalysisContextImpl_this._workManager.addFirst(
-          librarySource, SourcePriority.LIBRARY);
+      AnalysisContextImpl_this._workManager
+          .addFirst(librarySource, SourcePriority.LIBRARY);
       if (_taskData == null) {
         _taskData = AnalysisContextImpl_this._createResolveDartLibraryTask(
             librarySource, libraryEntry);
       }
     }
   }
 
   /**
    * Ensure that all of the libraries that are exported by the given [library]
    * (but are not themselves in the cycle) have element models built for them.
@@ skipping 1296 matching lines @@
    * Perform this analysis task, ensuring that all exceptions are wrapped in an
    * [AnalysisException]. Throws an [AnalysisException] if any exception occurs
    * while performing the task
    */
   void _safelyPerform() {
     try {
       String contextName = context.name;
       if (contextName == null) {
         contextName = 'unnamed';
       }
-      AnalysisEngine.instance.instrumentationService.logAnalysisTask(
-          contextName, taskDescription);
+      AnalysisEngine.instance.instrumentationService
+          .logAnalysisTask(contextName, taskDescription);
       internalPerform();
     } on AnalysisException {
       rethrow;
     } catch (exception, stackTrace) {
       throw new AnalysisException(
           exception.toString(), new CaughtException(exception, stackTrace));
     }
   }
 }
 
@@ skipping 1813 matching lines @@
       //
       // TODO(paulberry): as a temporary workaround for issue 21572,
       // ConstantVerifier is being run right after ConstantValueComputer, so we
       // don't need to run it here.  Once issue 21572 is fixed, re-enable the
       // call to ConstantVerifier.
 //      ConstantVerifier constantVerifier = new ConstantVerifier(errorReporter, libraryElement, typeProvider);
 //      _unit.accept(constantVerifier);
       //
       // Use the ErrorVerifier to compute the rest of the errors.
       //
-      ErrorVerifier errorVerifier = new ErrorVerifier(errorReporter,
-          libraryElement, typeProvider, new InheritanceManager(libraryElement),
+      ErrorVerifier errorVerifier = new ErrorVerifier(
+          errorReporter,
+          libraryElement,
+          typeProvider,
+          new InheritanceManager(libraryElement),
           context.analysisOptions.enableSuperMixins);
       _unit.accept(errorVerifier);
       _errors = errorListener.getErrorsForSource(source);
     });
   }
 
   /**
    * Check each directive in the given compilation unit to see if the referenced source exists and
    * report an error if it does not.
    *
@@ skipping 14 matching lines @@
 
   /**
    * Check the given directive to see if the referenced source exists and report an error if it does
    * not.
    *
    * @param context the context in which the library exists
    * @param librarySource the source representing the library containing the directive
    * @param directive the directive to be verified
    * @param errorListener the error listener to which errors should be reported
    */
-  static void validateReferencedSource(AnalysisContext context,
-      Source librarySource, UriBasedDirective directive,
+  static void validateReferencedSource(
+      AnalysisContext context,
+      Source librarySource,
+      UriBasedDirective directive,
       AnalysisErrorListener errorListener) {
     Source source = directive.source;
     if (source != null) {
       if (context.exists(source)) {
         return;
       }
     } else {
       // Don't report errors already reported by ParseDartTask.resolveDirective
       if (directive.validate() != null) {
         return;
       }
     }
     StringLiteral uriLiteral = directive.uri;
-    errorListener.onError(new AnalysisError(librarySource, uriLiteral.offset,
-        uriLiteral.length, CompileTimeErrorCode.URI_DOES_NOT_EXIST,
+    errorListener.onError(new AnalysisError(
+        librarySource,
+        uriLiteral.offset,
+        uriLiteral.length,
+        CompileTimeErrorCode.URI_DOES_NOT_EXIST,
         [directive.uriContent]));
   }
 }
 
 /**
  * Instances of the class `GenerateDartHintsTask` generate hints for a single Dart library.
  */
 class GenerateDartHintsTask extends AnalysisTask {
   /**
    * The compilation units that comprise the library, with the defining compilation unit appearing
@@ skipping 71 matching lines @@
     _hintMap = new HashMap<Source, List<AnalysisError>>();
     for (int i = 0; i < unitCount; i++) {
       Source source = _units[i].data.element.source;
       _hintMap[source] = errorListener.getErrorsForSource(source);
     }
   }
 }
 
 /// Generates lint feedback for a single Dart library.
 class GenerateDartLintsTask extends AnalysisTask {
-
   ///The compilation units that comprise the library, with the defining
   ///compilation unit appearing first in the list.
   final List<TimestampedData<CompilationUnit>> _units;
 
   /// The element model for the library being analyzed.
   final LibraryElement libraryElement;
 
   /// A mapping of analyzed sources to their associated lint warnings.
   /// May be [null] if the task has not been performed or if analysis did not
   /// complete normally.
@@ skipping 109 matching lines @@
   @override
   accept(AnalysisTaskVisitor visitor) => visitor.visitGetContentTask(this);
 
   @override
   void internalPerform() {
     _complete = true;
     try {
       TimestampedData<String> data = context.getContents(source);
       _content = data.data;
       _modificationTime = data.modificationTime;
-      AnalysisEngine.instance.instrumentationService.logFileRead(
-          source.fullName, _modificationTime, _content);
+      AnalysisEngine.instance.instrumentationService
+          .logFileRead(source.fullName, _modificationTime, _content);
     } catch (exception, stackTrace) {
       errors.add(new AnalysisError(
           source, 0, 0, ScannerErrorCode.UNABLE_GET_CONTENT, [exception]));
       throw new AnalysisException("Could not get contents of $source",
           new CaughtException(exception, stackTrace));
     }
   }
 }
 
 /**
@@ skipping 264 matching lines @@
   final CompilationUnit resolvedUnit;
 
   String _newContents;
 
   int _offset = 0;
 
   int _oldLength = 0;
 
   int _newLength = 0;
 
-  IncrementalAnalysisCache(this.librarySource, this.source, this.resolvedUnit,
-      this.oldContents, this._newContents, this._offset, this._oldLength,
+  IncrementalAnalysisCache(
+      this.librarySource,
+      this.source,
+      this.resolvedUnit,
+      this.oldContents,
+      this._newContents,
+      this._offset,
+      this._oldLength,
       this._newLength);
 
   /**
    * Determine if the cache contains source changes that need to be analyzed
    *
    * @return `true` if the cache contains changes to be analyzed, else `false`
    */
   bool get hasWork => _oldLength > 0 || _newLength > 0;
 
   /**
@@ skipping 64 matching lines @@
    * @param source the source being updated (not `null`)
    * @param oldContents the original source contents prior to this update (may be `null`)
    * @param newContents the new contents after this incremental change (not `null`)
    * @param offset the offset at which the change occurred
    * @param oldLength the length of the text being replaced
    * @param newLength the length of the replacement text
    * @param sourceEntry the cached entry for the given source or `null` if none
    * @return the cache used for incremental analysis or `null` if incremental analysis cannot
    *         be performed
    */
-  static IncrementalAnalysisCache update(IncrementalAnalysisCache cache,
-      Source source, String oldContents, String newContents, int offset,
-      int oldLength, int newLength, SourceEntry sourceEntry) {
+  static IncrementalAnalysisCache update(
+      IncrementalAnalysisCache cache,
+      Source source,
+      String oldContents,
+      String newContents,
+      int offset,
+      int oldLength,
+      int newLength,
+      SourceEntry sourceEntry) {
     // Determine the cache resolved unit
     Source librarySource = null;
     CompilationUnit unit = null;
     if (sourceEntry is DartEntry) {
       DartEntry dartEntry = sourceEntry;
       List<Source> librarySources = dartEntry.librariesContaining;
       if (librarySources.length == 1) {
         librarySource = librarySources[0];
         if (librarySource != null) {
           unit = dartEntry.getValueInLibrary(
@@ skipping 405 matching lines @@
 class ObsoleteSourceAnalysisException extends AnalysisException {
   /**
    * The source that was removed while it was being analyzed.
    */
   Source _source;
 
   /**
    * Initialize a newly created exception to represent the removal of the given
    * [source].
    */
-  ObsoleteSourceAnalysisException(Source source) : super(
-          "The source '${source.fullName}' was removed while it was being analyzed") {
+  ObsoleteSourceAnalysisException(Source source)
+      : super(
+            "The source '${source.fullName}' was removed while it was being analyzed") {
     this._source = source;
   }
 
   /**
    * Return the source that was removed while it was being analyzed.
    */
   Source get source => _source;
 }
 
 /**
@@ skipping 1336 matching lines @@
         new InheritanceManager(_libraryElement);
     ResolverVisitor resolverVisitor = new ResolverVisitor(
         _libraryElement, source, typeProvider, errorListener,
         inheritanceManager: inheritanceManager);
     unit.accept(resolverVisitor);
     //
     // Perform additional error checking.
     //
     PerformanceStatistics.errors.makeCurrentWhile(() {
       ErrorReporter errorReporter = new ErrorReporter(errorListener, source);
-      ErrorVerifier errorVerifier = new ErrorVerifier(errorReporter,
-          _libraryElement, typeProvider, inheritanceManager,
+      ErrorVerifier errorVerifier = new ErrorVerifier(
+          errorReporter,
+          _libraryElement,
+          typeProvider,
+          inheritanceManager,
           context.analysisOptions.enableSuperMixins);
       unit.accept(errorVerifier);
       // TODO(paulberry): as a temporary workaround for issue 21572,
       // ConstantVerifier is being run right after ConstantValueComputer, so we
       // don't need to run it here.  Once issue 21572 is fixed, re-enable the
       // call to ConstantVerifier.
 //       ConstantVerifier constantVerifier = new ConstantVerifier(errorReporter, _libraryElement, typeProvider);
 //       unit.accept(constantVerifier);
     });
     //
@@ skipping 1074 matching lines @@
     PendingFuture pendingFuture =
         new PendingFuture<T>(_context, source, computeValue);
     if (!pendingFuture.evaluate(sourceEntry)) {
       _context._pendingFutureSources
           .putIfAbsent(source, () => <PendingFuture>[])
           .add(pendingFuture);
     }
     return pendingFuture.future;
   }
 }