| Index: mojo/public/dart/third_party/analyzer/lib/src/generated/engine.dart
|
| diff --git a/mojo/public/dart/third_party/analyzer/lib/src/generated/engine.dart b/mojo/public/dart/third_party/analyzer/lib/src/generated/engine.dart
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..0e8f9c831b9d99678f39e38a5996be780e3cc176
|
| --- /dev/null
|
| +++ b/mojo/public/dart/third_party/analyzer/lib/src/generated/engine.dart
|
| @@ -0,0 +1,12026 @@
|
| +// 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;
|
| +
|
| +import 'package:analyzer/src/cancelable_future.dart';
|
| +import 'package:analyzer/src/context/cache.dart' as cache;
|
| +import 'package:analyzer/src/context/context.dart' as newContext;
|
| +import 'package:analyzer/src/generated/incremental_resolution_validator.dart';
|
| +import 'package:analyzer/src/plugin/command_line_plugin.dart';
|
| +import 'package:analyzer/src/plugin/engine_plugin.dart';
|
| +import 'package:analyzer/src/plugin/options_plugin.dart';
|
| +import 'package:analyzer/src/services/lint.dart';
|
| +import 'package:analyzer/src/task/manager.dart';
|
| +import 'package:analyzer/task/dart.dart';
|
| +import 'package:analyzer/task/model.dart';
|
| +import 'package:html/dom.dart' show Document;
|
| +import 'package:plugin/manager.dart';
|
| +import 'package:plugin/plugin.dart';
|
| +
|
| +import '../../instrumentation/instrumentation.dart';
|
| +import 'ast.dart';
|
| +import 'constant.dart';
|
| +import 'element.dart';
|
| +import 'error.dart';
|
| +import 'error_verifier.dart';
|
| +import 'html.dart' as ht;
|
| +import 'incremental_resolver.dart'
|
| + show IncrementalResolver, PoorMansIncrementalResolver;
|
| +import 'incremental_scanner.dart';
|
| +import 'java_core.dart';
|
| +import 'java_engine.dart';
|
| +import 'parser.dart' show Parser, IncrementalParser;
|
| +import 'resolver.dart';
|
| +import 'scanner.dart';
|
| +import 'sdk.dart' show DartSdk;
|
| +import 'source.dart';
|
| +import 'utilities_collection.dart';
|
| +import 'utilities_general.dart';
|
| +
|
| +/**
|
| + * Used by [AnalysisOptions] to allow function bodies to be analyzed in some
|
| + * sources but not others.
|
| + */
|
| +typedef bool AnalyzeFunctionBodiesPredicate(Source source);
|
| +
|
| +/**
|
| + * Type of callback functions used by PendingFuture. Functions of this type
|
| + * should perform a computation based on the data in [sourceEntry] and return
|
| + * it. If the computation can't be performed yet because more analysis is
|
| + * needed, null should be returned.
|
| + *
|
| + * The function may also throw an exception, in which case the corresponding
|
| + * future will be completed with failure.
|
| + *
|
| + * Since this function is called while the state of analysis is being updated,
|
| + * it should be free of side effects so that it doesn't cause reentrant
|
| + * changes to the analysis state.
|
| + */
|
| +typedef T PendingFutureComputer<T>(SourceEntry sourceEntry);
|
| +
|
| +/**
|
| + * An LRU cache of information related to analysis.
|
| + */
|
| +class AnalysisCache {
|
| + /**
|
| + * A flag used to control whether trace information should be produced when
|
| + * the content of the cache is modified.
|
| + */
|
| + static bool _TRACE_CHANGES = false;
|
| +
|
| + /**
|
| + * A list containing the partitions of which this cache is comprised.
|
| + */
|
| + final List<CachePartition> _partitions;
|
| +
|
| + /**
|
| + * Initialize a newly created cache to have the given [_partitions]. The
|
| + * partitions will be searched in the order in which they appear in the list,
|
| + * so the most specific partition (usually an [SdkCachePartition]) should be
|
| + * first and the most general (usually a [UniversalCachePartition]) last.
|
| + */
|
| + AnalysisCache(this._partitions);
|
| +
|
| + /**
|
| + * Return the number of entries in this cache that have an AST associated with
|
| + * them.
|
| + */
|
| + int get astSize => _partitions[_partitions.length - 1].astSize;
|
| +
|
| + /**
|
| + * Return information about each of the partitions in this cache.
|
| + */
|
| + List<AnalysisContextStatistics_PartitionData> get partitionData {
|
| + int count = _partitions.length;
|
| + List<AnalysisContextStatistics_PartitionData> data =
|
| + new List<AnalysisContextStatistics_PartitionData>(count);
|
| + for (int i = 0; i < count; i++) {
|
| + CachePartition partition = _partitions[i];
|
| + data[i] = new AnalysisContextStatisticsImpl_PartitionDataImpl(
|
| + partition.astSize, partition.map.length);
|
| + }
|
| + return data;
|
| + }
|
| +
|
| + /**
|
| + * Record that the AST associated with the given [source] was just read from
|
| + * the cache.
|
| + */
|
| + void accessedAst(Source source) {
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + _partitions[i].accessedAst(source);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the entry associated with the given [source].
|
| + */
|
| + SourceEntry get(Source source) {
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + return _partitions[i].get(source);
|
| + }
|
| + }
|
| + //
|
| + // We should never get to this point because the last partition should
|
| + // always be a universal partition, except in the case of the SDK context,
|
| + // in which case the source should always be part of the SDK.
|
| + //
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Return context that owns the given [source].
|
| + */
|
| + InternalAnalysisContext getContextFor(Source source) {
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + return _partitions[i].context;
|
| + }
|
| + }
|
| + //
|
| + // We should never get to this point because the last partition should
|
| + // always be a universal partition, except in the case of the SDK context,
|
| + // in which case the source should always be part of the SDK.
|
| + //
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not find context for ${source.fullName}",
|
| + new CaughtException(new AnalysisException(), null));
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Return an iterator returning all of the map entries mapping sources to
|
| + * cache entries.
|
| + */
|
| + MapIterator<Source, SourceEntry> iterator() {
|
| + int count = _partitions.length;
|
| + List<Map<Source, SourceEntry>> maps =
|
| + new List<Map<Source, SourceEntry>>(count);
|
| + for (int i = 0; i < count; i++) {
|
| + maps[i] = _partitions[i].map;
|
| + }
|
| + return new MultipleMapIterator<Source, SourceEntry>(maps);
|
| + }
|
| +
|
| + /**
|
| + * Associate the given [entry] with the given [source].
|
| + */
|
| + void put(Source source, SourceEntry entry) {
|
| + entry.fixExceptionState();
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + if (_TRACE_CHANGES) {
|
| + try {
|
| + SourceEntry oldEntry = _partitions[i].get(source);
|
| + if (oldEntry == null) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Added a cache entry for '${source.fullName}'.");
|
| + } else {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Modified the cache entry for ${source.fullName}'. Diff = ${entry.getDiff(oldEntry)}");
|
| + }
|
| + } catch (exception) {
|
| + // Ignored
|
| + JavaSystem.currentTimeMillis();
|
| + }
|
| + }
|
| + _partitions[i].put(source, entry);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Remove all information related to the given [source] from this cache.
|
| + * Return the entry associated with the source, or `null` if there was cache
|
| + * entry for the source.
|
| + */
|
| + SourceEntry remove(Source source) {
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + if (_TRACE_CHANGES) {
|
| + try {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Removed the cache entry for ${source.fullName}'.");
|
| + } catch (exception) {
|
| + // Ignored
|
| + JavaSystem.currentTimeMillis();
|
| + }
|
| + }
|
| + return _partitions[i].remove(source);
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Record that the AST associated with the given [source] was just removed
|
| + * from the cache.
|
| + */
|
| + void removedAst(Source source) {
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + _partitions[i].removedAst(source);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the number of sources that are mapped to cache entries.
|
| + */
|
| + int size() {
|
| + int size = 0;
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + size += _partitions[i].size();
|
| + }
|
| + return size;
|
| + }
|
| +
|
| + /**
|
| + * Record that the AST associated with the given [source] was just stored to
|
| + * the cache.
|
| + */
|
| + void storedAst(Source source) {
|
| + int count = _partitions.length;
|
| + for (int i = 0; i < count; i++) {
|
| + if (_partitions[i].contains(source)) {
|
| + _partitions[i].storedAst(source);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * A context in which a single analysis can be performed and incrementally
|
| + * maintained. The context includes such information as the version of the SDK
|
| + * being analyzed against as well as the package-root used to resolve 'package:'
|
| + * URI's. (Both of which are known indirectly through the [SourceFactory].)
|
| + *
|
| + * An analysis context also represents the state of the analysis, which includes
|
| + * knowing which sources have been included in the analysis (either directly or
|
| + * indirectly) and the results of the analysis. Sources must be added and
|
| + * removed from the context using the method [applyChanges], which is also used
|
| + * to notify the context when sources have been modified and, consequently,
|
| + * previously known results might have been invalidated.
|
| + *
|
| + * There are two ways to access the results of the analysis. The most common is
|
| + * to use one of the 'get' methods to access the results. The 'get' methods have
|
| + * the advantage that they will always return quickly, but have the disadvantage
|
| + * that if the results are not currently available they will return either
|
| + * nothing or in some cases an incomplete result. The second way to access
|
| + * results is by using one of the 'compute' methods. The 'compute' methods will
|
| + * always attempt to compute the requested results but might block the caller
|
| + * for a significant period of time.
|
| + *
|
| + * When results have been invalidated, have never been computed (as is the case
|
| + * for newly added sources), or have been removed from the cache, they are
|
| + * <b>not</b> automatically recreated. They will only be recreated if one of the
|
| + * 'compute' methods is invoked.
|
| + *
|
| + * However, this is not always acceptable. Some clients need to keep the
|
| + * analysis results up-to-date. For such clients there is a mechanism that
|
| + * allows them to incrementally perform needed analysis and get notified of the
|
| + * consequent changes to the analysis results. This mechanism is realized by the
|
| + * method [performAnalysisTask].
|
| + *
|
| + * Analysis engine allows for having more than one context. This can be used,
|
| + * for example, to perform one analysis based on the state of files on disk and
|
| + * a separate analysis based on the state of those files in open editors. It can
|
| + * also be used to perform an analysis based on a proposed future state, such as
|
| + * the state after a refactoring.
|
| + */
|
| +abstract class AnalysisContext {
|
| + /**
|
| + * An empty list of contexts.
|
| + */
|
| + static const List<AnalysisContext> EMPTY_LIST = const <AnalysisContext>[];
|
| +
|
| + /**
|
| + * Return the set of analysis options controlling the behavior of this
|
| + * context. Clients should not modify the returned set of options. The options
|
| + * should only be set by invoking the method [setAnalysisOptions].
|
| + */
|
| + AnalysisOptions get analysisOptions;
|
| +
|
| + /**
|
| + * Set the set of analysis options controlling the behavior of this context to
|
| + * the given [options]. Clients can safely assume that all necessary analysis
|
| + * results have been invalidated.
|
| + */
|
| + void set analysisOptions(AnalysisOptions options);
|
| +
|
| + /**
|
| + * Set the order in which sources will be analyzed by [performAnalysisTask] to
|
| + * match the order of the sources in the given list of [sources]. If a source
|
| + * that needs to be analyzed is not contained in the list, then it will be
|
| + * treated as if it were at the end of the list. If the list is empty (or
|
| + * `null`) then no sources will be given priority over other sources.
|
| + *
|
| + * Changes made to the list after this method returns will <b>not</b> be
|
| + * reflected in the priority order.
|
| + */
|
| + void set analysisPriorityOrder(List<Source> sources);
|
| +
|
| + /**
|
| + * Return the set of declared variables used when computing constant values.
|
| + */
|
| + DeclaredVariables get declaredVariables;
|
| +
|
| + /**
|
| + * Return a list containing all of the sources known to this context that
|
| + * represent HTML files. The contents of the list can be incomplete.
|
| + */
|
| + List<Source> get htmlSources;
|
| +
|
| + /**
|
| + * The stream that is notified when a source either starts or stops being
|
| + * analyzed implicitly.
|
| + */
|
| + Stream<ImplicitAnalysisEvent> get implicitAnalysisEvents;
|
| +
|
| + /**
|
| + * Returns `true` if this context was disposed using [dispose].
|
| + */
|
| + bool get isDisposed;
|
| +
|
| + /**
|
| + * Return a list containing all of the sources known to this context that
|
| + * represent the defining compilation unit of a library that can be run within
|
| + * a browser. The sources that are returned represent libraries that have a
|
| + * 'main' method and are either referenced by an HTML file or import, directly
|
| + * or indirectly, a client-only library. The contents of the list can be
|
| + * incomplete.
|
| + */
|
| + List<Source> get launchableClientLibrarySources;
|
| +
|
| + /**
|
| + * Return a list containing all of the sources known to this context that
|
| + * represent the defining compilation unit of a library that can be run
|
| + * outside of a browser. The contents of the list can be incomplete.
|
| + */
|
| + List<Source> get launchableServerLibrarySources;
|
| +
|
| + /**
|
| + * Return a list containing all of the sources known to this context that
|
| + * represent the defining compilation unit of a library. The contents of the
|
| + * list can be incomplete.
|
| + */
|
| + List<Source> get librarySources;
|
| +
|
| + /**
|
| + * Return a client-provided name used to identify this context, or `null` if
|
| + * the client has not provided a name.
|
| + */
|
| + String get name;
|
| +
|
| + /**
|
| + * Set the client-provided name used to identify this context to the given
|
| + * [name].
|
| + */
|
| + set name(String name);
|
| +
|
| + /**
|
| + * The stream that is notified when sources have been added or removed,
|
| + * or the source's content has changed.
|
| + */
|
| + Stream<SourcesChangedEvent> get onSourcesChanged;
|
| +
|
| + /**
|
| + * Return the source factory used to create the sources that can be analyzed
|
| + * in this context.
|
| + */
|
| + SourceFactory get sourceFactory;
|
| +
|
| + /**
|
| + * Set the source factory used to create the sources that can be analyzed in
|
| + * this context to the given source [factory]. Clients can safely assume that
|
| + * all analysis results have been invalidated.
|
| + */
|
| + void set sourceFactory(SourceFactory factory);
|
| +
|
| + /**
|
| + * Return a list containing all of the sources known to this context.
|
| + */
|
| + List<Source> get sources;
|
| +
|
| + /**
|
| + * Return a type provider for this context or throw [AnalysisException] if
|
| + * either `dart:core` or `dart:async` cannot be resolved.
|
| + */
|
| + TypeProvider get typeProvider;
|
| +
|
| + /**
|
| + * Add the given [listener] to the list of objects that are to be notified
|
| + * when various analysis results are produced in this context.
|
| + */
|
| + void addListener(AnalysisListener listener);
|
| +
|
| + /**
|
| + * Apply the given [delta] to change the level of analysis that will be
|
| + * performed for the sources known to this context.
|
| + */
|
| + void applyAnalysisDelta(AnalysisDelta delta);
|
| +
|
| + /**
|
| + * Apply the changes specified by the given [changeSet] to this context. Any
|
| + * analysis results that have been invalidated by these changes will be
|
| + * removed.
|
| + */
|
| + void applyChanges(ChangeSet changeSet);
|
| +
|
| + /**
|
| + * Return the documentation comment for the given [element] as it appears in
|
| + * the original source (complete with the beginning and ending delimiters) for
|
| + * block documentation comments, or lines starting with `"///"` and separated
|
| + * with `"\n"` characters for end-of-line documentation comments, or `null` if
|
| + * the element does not have a documentation comment associated with it. This
|
| + * can be a long-running operation if the information needed to access the
|
| + * comment is not cached.
|
| + *
|
| + * Throws an [AnalysisException] if the documentation comment could not be
|
| + * determined because the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + String computeDocumentationComment(Element element);
|
| +
|
| + /**
|
| + * Return a list containing all of the errors associated with the given
|
| + * [source]. If the errors are not already known then the source will be
|
| + * analyzed in order to determine the errors associated with it.
|
| + *
|
| + * Throws an [AnalysisException] if the errors could not be determined because
|
| + * the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getErrors].
|
| + */
|
| + List<AnalysisError> computeErrors(Source source);
|
| +
|
| + /**
|
| + * Return the element model corresponding to the HTML file defined by the
|
| + * given [source]. If the element model does not yet exist it will be created.
|
| + * The process of creating an element model for an HTML file can be
|
| + * long-running, depending on the size of the file and the number of libraries
|
| + * that are defined in it (via script tags) that also need to have a model
|
| + * built for them.
|
| + *
|
| + * Throws AnalysisException if the element model could not be determined
|
| + * because the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getHtmlElement].
|
| + */
|
| + @deprecated
|
| + HtmlElement computeHtmlElement(Source source);
|
| +
|
| + /**
|
| + * Return the kind of the given [source], computing it's kind if it is not
|
| + * already known. Return [SourceKind.UNKNOWN] if the source is not contained
|
| + * in this context.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getKindOf].
|
| + */
|
| + SourceKind computeKindOf(Source source);
|
| +
|
| + /**
|
| + * Return the element model corresponding to the library defined by the given
|
| + * [source]. If the element model does not yet exist it will be created. The
|
| + * process of creating an element model for a library can long-running,
|
| + * depending on the size of the library and the number of libraries that are
|
| + * imported into it that also need to have a model built for them.
|
| + *
|
| + * Throws an [AnalysisException] if the element model could not be determined
|
| + * because the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getLibraryElement].
|
| + */
|
| + LibraryElement computeLibraryElement(Source source);
|
| +
|
| + /**
|
| + * Return the line information for the given [source], or `null` if the source
|
| + * is not of a recognized kind (neither a Dart nor HTML file). If the line
|
| + * information was not previously known it will be created. The line
|
| + * information is used to map offsets from the beginning of the source to line
|
| + * and column pairs.
|
| + *
|
| + * Throws an [AnalysisException] if the line information could not be
|
| + * determined because the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getLineInfo].
|
| + */
|
| + LineInfo computeLineInfo(Source source);
|
| +
|
| + /**
|
| + * Return a future which will be completed with the fully resolved AST for a
|
| + * single compilation unit within the given library, once that AST is up to
|
| + * date.
|
| + *
|
| + * If the resolved AST can't be computed for some reason, the future will be
|
| + * completed with an error. One possible error is AnalysisNotScheduledError,
|
| + * which means that the resolved AST can't be computed because the given
|
| + * source file is not scheduled to be analyzed within the context of the
|
| + * given library.
|
| + */
|
| + CancelableFuture<CompilationUnit> computeResolvedCompilationUnitAsync(
|
| + Source source, Source librarySource);
|
| +
|
| + /**
|
| + * Perform work until the given [result] has been computed for the given
|
| + * [target]. Return the computed value.
|
| + */
|
| + Object /*V*/ computeResult(AnalysisTarget target, ResultDescriptor /*<V>*/ result);
|
| +
|
| + /**
|
| + * Notifies the context that the client is going to stop using this context.
|
| + */
|
| + void dispose();
|
| +
|
| + /**
|
| + * Return `true` if the given [source] exists.
|
| + *
|
| + * This method should be used rather than the method [Source.exists] because
|
| + * contexts can have local overrides of the content of a source that the
|
| + * source is not aware of and a source with local content is considered to
|
| + * exist even if there is no file on disk.
|
| + */
|
| + bool exists(Source source);
|
| +
|
| + /**
|
| + * Return the element model corresponding to the compilation unit defined by
|
| + * the given [unitSource] in the library defined by the given [librarySource],
|
| + * or `null` if the element model does not currently exist or if the library
|
| + * cannot be analyzed for some reason.
|
| + */
|
| + CompilationUnitElement getCompilationUnitElement(
|
| + Source unitSource, Source librarySource);
|
| +
|
| + /**
|
| + * Return the contents and timestamp of the given [source].
|
| + *
|
| + * This method should be used rather than the method [Source.getContents]
|
| + * because contexts can have local overrides of the content of a source that
|
| + * the source is not aware of.
|
| + */
|
| + TimestampedData<String> getContents(Source source);
|
| +
|
| + /**
|
| + * Return the element referenced by the given [location], or `null` if the
|
| + * element is not immediately available or if there is no element with the
|
| + * given location. The latter condition can occur, for example, if the
|
| + * location describes an element from a different context or if the element
|
| + * has been removed from this context as a result of some change since it was
|
| + * originally obtained.
|
| + */
|
| + Element getElement(ElementLocation location);
|
| +
|
| + /**
|
| + * Return an analysis error info 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 this context or if there are no
|
| + * errors in the source. The errors contained in the list can be incomplete.
|
| + *
|
| + * See [computeErrors].
|
| + */
|
| + AnalysisErrorInfo getErrors(Source source);
|
| +
|
| + /**
|
| + * Return the element model corresponding to the HTML file defined by the
|
| + * given [source], or `null` if the source does not represent an HTML file,
|
| + * the element representing the file has not yet been created, or the analysis
|
| + * of the HTML file failed for some reason.
|
| + *
|
| + * See [computeHtmlElement].
|
| + */
|
| + @deprecated
|
| + HtmlElement getHtmlElement(Source source);
|
| +
|
| + /**
|
| + * Return the sources for the HTML files that reference the compilation unit
|
| + * with the given [source]. If the source does not represent a Dart source or
|
| + * is not known to this context, the returned list will be empty. The contents
|
| + * of the list can be incomplete.
|
| + */
|
| + List<Source> getHtmlFilesReferencing(Source source);
|
| +
|
| + /**
|
| + * Return the kind of the given [source], or `null` if the kind is not known
|
| + * to this context.
|
| + *
|
| + * See [computeKindOf].
|
| + */
|
| + SourceKind getKindOf(Source source);
|
| +
|
| + /**
|
| + * Return the sources for the defining compilation units of any libraries of
|
| + * which the given [source] is a part. The list will normally contain a single
|
| + * library because most Dart sources are only included in a single library,
|
| + * but it is possible to have a part that is contained in multiple identically
|
| + * named libraries. If the source represents the defining compilation unit of
|
| + * a library, then the returned list will contain the given source as its only
|
| + * element. If the source does not represent a Dart source or is not known to
|
| + * this context, the returned list will be empty. The contents of the list can
|
| + * be incomplete.
|
| + */
|
| + List<Source> getLibrariesContaining(Source source);
|
| +
|
| + /**
|
| + * Return the sources for the defining compilation units of any libraries that
|
| + * depend on the library defined by the given [librarySource]. One library
|
| + * depends on another if it either imports or exports that library.
|
| + */
|
| + List<Source> getLibrariesDependingOn(Source librarySource);
|
| +
|
| + /**
|
| + * Return the sources for the defining compilation units of any libraries that
|
| + * are referenced from the HTML file defined by the given [htmlSource].
|
| + */
|
| + List<Source> getLibrariesReferencedFromHtml(Source htmlSource);
|
| +
|
| + /**
|
| + * Return the element model corresponding to the library defined by the given
|
| + * [source], or `null` if the element model does not currently exist or if the
|
| + * library cannot be analyzed for some reason.
|
| + */
|
| + LibraryElement getLibraryElement(Source source);
|
| +
|
| + /**
|
| + * Return the line information for the given [source], or `null` if the line
|
| + * information is not known. The line information is used to map offsets from
|
| + * the beginning of the source to line and column pairs.
|
| + *
|
| + * See [computeLineInfo].
|
| + */
|
| + LineInfo getLineInfo(Source source);
|
| +
|
| + /**
|
| + * Return the modification stamp for the [source], or a negative value if the
|
| + * source does not exist. A modification stamp is a non-negative integer with
|
| + * the property that if the contents of the source have not been modified
|
| + * since the last time the modification stamp was accessed then the same value
|
| + * will be returned, but if the contents of the source have been modified one
|
| + * or more times (even if the net change is zero) the stamps will be different.
|
| + *
|
| + * This method should be used rather than the method
|
| + * [Source.getModificationStamp] because contexts can have local overrides of
|
| + * the content of a source that the source is not aware of.
|
| + */
|
| + int getModificationStamp(Source source);
|
| +
|
| + /**
|
| + * Return a fully resolved AST for the compilation unit defined by the given
|
| + * [unitSource] within the given [library], or `null` if the resolved AST is
|
| + * not already computed.
|
| + *
|
| + * See [resolveCompilationUnit].
|
| + */
|
| + CompilationUnit getResolvedCompilationUnit(
|
| + Source unitSource, LibraryElement library);
|
| +
|
| + /**
|
| + * Return a fully resolved AST for the compilation unit defined by the given
|
| + * [unitSource] within the library defined by the given [librarySource], or
|
| + * `null` if the resolved AST is not already computed.
|
| + *
|
| + * See [resolveCompilationUnit2].
|
| + */
|
| + CompilationUnit getResolvedCompilationUnit2(
|
| + Source unitSource, Source librarySource);
|
| +
|
| + /**
|
| + * Return the fully resolved HTML unit defined by the given [htmlSource], or
|
| + * `null` if the resolved unit is not already computed.
|
| + *
|
| + * See [resolveHtmlUnit].
|
| + */
|
| + @deprecated
|
| + ht.HtmlUnit getResolvedHtmlUnit(Source htmlSource);
|
| +
|
| + /**
|
| + * Return the value of the given [result] for the given [target].
|
| + *
|
| + * If the corresponding [target] does not exist, or the [result] is not
|
| + * computed yet, then the default value is returned.
|
| + */
|
| + Object /*V*/ getResult(AnalysisTarget target, ResultDescriptor /*<V>*/ result);
|
| +
|
| + /**
|
| + * Return a list of the sources being analyzed in this context whose full path
|
| + * is equal to the given [path].
|
| + */
|
| + List<Source> getSourcesWithFullName(String path);
|
| +
|
| + /**
|
| + * Invalidates hints in the given [librarySource] and included parts.
|
| + */
|
| + void invalidateLibraryHints(Source librarySource);
|
| +
|
| + /**
|
| + * Return `true` if the given [librarySource] is known to be the defining
|
| + * compilation unit of a library that can be run on a client (references
|
| + * 'dart:html', either directly or indirectly).
|
| + *
|
| + * <b>Note:</b> In addition to the expected case of returning `false` if the
|
| + * source is known to be a library that cannot be run on a client, this method
|
| + * will also return `false` if the source is not known to be a library or if
|
| + * we do not know whether it can be run on a client.
|
| + */
|
| + bool isClientLibrary(Source librarySource);
|
| +
|
| + /**
|
| + * Return `true` if the given [librarySource] is known to be the defining
|
| + * compilation unit of a library that can be run on the server (does not
|
| + * reference 'dart:html', either directly or indirectly).
|
| + *
|
| + * <b>Note:</b> In addition to the expected case of returning `false` if the
|
| + * source is known to be a library that cannot be run on the server, this
|
| + * method will also return `false` if the source is not known to be a library
|
| + * or if we do not know whether it can be run on the server.
|
| + */
|
| + bool isServerLibrary(Source librarySource);
|
| +
|
| + /**
|
| + * Return the stream that is notified when a new value for the given
|
| + * [descriptor] is computed.
|
| + */
|
| + Stream<ComputedResult> onResultComputed(ResultDescriptor descriptor);
|
| +
|
| + /**
|
| + * Parse the content of the given [source] to produce an AST structure. The
|
| + * resulting AST structure may or may not be resolved, and may have a slightly
|
| + * different structure depending upon whether it is resolved.
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + CompilationUnit parseCompilationUnit(Source source);
|
| +
|
| + /**
|
| + * Parse a single HTML [source] to produce a document model.
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Document parseHtmlDocument(Source source);
|
| +
|
| + /**
|
| + * Parse a single HTML [source] to produce an AST structure. The resulting
|
| + * HTML AST structure may or may not be resolved, and may have a slightly
|
| + * different structure depending upon whether it is resolved.
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + @deprecated // use parseHtmlDocument(source)
|
| + ht.HtmlUnit parseHtmlUnit(Source source);
|
| +
|
| + /**
|
| + * Perform the next unit of work required to keep the analysis results
|
| + * up-to-date and return information about the consequent changes to the
|
| + * analysis results. This method can be long running.
|
| + *
|
| + * The implementation that uses the task model notifies subscribers of
|
| + * [onResultComputed] about computed results.
|
| + *
|
| + * The following results are computed for Dart sources.
|
| + *
|
| + * 1. For explicit and implicit sources:
|
| + * [PARSED_UNIT]
|
| + * [RESOLVED_UNIT]
|
| + *
|
| + * 2. For explicit sources:
|
| + * [DART_ERRORS].
|
| + *
|
| + * 3. For explicit and implicit library sources:
|
| + * [LIBRARY_ELEMENT].
|
| + */
|
| + AnalysisResult performAnalysisTask();
|
| +
|
| + /**
|
| + * Remove the given [listener] from the list of objects that are to be
|
| + * notified when various analysis results are produced in this context.
|
| + */
|
| + void removeListener(AnalysisListener listener);
|
| +
|
| + /**
|
| + * Return a fully resolved AST for the compilation unit defined by the given
|
| + * [unitSource] within the given [library].
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getResolvedCompilationUnit].
|
| + */
|
| + CompilationUnit resolveCompilationUnit(
|
| + Source unitSource, LibraryElement library);
|
| +
|
| + /**
|
| + * Return a fully resolved AST for the compilation unit defined by the given
|
| + * [unitSource] within the library defined by the given [librarySource].
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + *
|
| + * See [getResolvedCompilationUnit2].
|
| + */
|
| + CompilationUnit resolveCompilationUnit2(
|
| + Source unitSource, Source librarySource);
|
| +
|
| + /**
|
| + * Parse and resolve a single [htmlSource] within the given context to produce
|
| + * a fully resolved AST.
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + @deprecated
|
| + ht.HtmlUnit resolveHtmlUnit(Source htmlSource);
|
| +
|
| + /**
|
| + * Set the contents of the given [source] to the given [contents] and mark the
|
| + * source as having changed. The additional [offset] and [length] information
|
| + * is used by the context to determine what reanalysis is necessary.
|
| + */
|
| + void setChangedContents(
|
| + Source source, String contents, int offset, int oldLength, int newLength);
|
| +
|
| + /**
|
| + * Set the contents of the given [source] to the given [contents] and mark the
|
| + * source as having changed. This has the effect of overriding the default
|
| + * contents of the source. If the contents are `null` the override is removed
|
| + * so that the default contents will be returned.
|
| + */
|
| + void setContents(Source source, String contents);
|
| +
|
| + /**
|
| + * Check the cache for any invalid entries (entries whose modification time
|
| + * does not match the modification time of the source associated with the
|
| + * entry). Invalid entries will be marked as invalid so that the source will
|
| + * be re-analyzed. Return `true` if at least one entry was invalid.
|
| + */
|
| + bool validateCacheConsistency();
|
| +}
|
| +
|
| +/**
|
| + * An [AnalysisContext].
|
| + */
|
| +class AnalysisContextImpl implements InternalAnalysisContext {
|
| + /**
|
| + * The difference between the maximum cache size and the maximum priority
|
| + * order size. The priority list must be capped so that it is less than the
|
| + * cache size. Failure to do so can result in an infinite loop in
|
| + * performAnalysisTask() because re-caching one AST structure can cause
|
| + * another priority source's AST structure to be flushed.
|
| + */
|
| + static int _PRIORITY_ORDER_SIZE_DELTA = 4;
|
| +
|
| + /**
|
| + * A flag indicating whether trace output should be produced as analysis tasks
|
| + * are performed. Used for debugging.
|
| + */
|
| + static bool _TRACE_PERFORM_TASK = false;
|
| +
|
| + /**
|
| + * The next context identifier.
|
| + */
|
| + static int _NEXT_ID = 0;
|
| +
|
| + /**
|
| + * The unique identifier of this context.
|
| + */
|
| + final int _id = _NEXT_ID++;
|
| +
|
| + /**
|
| + * A client-provided name used to identify this context, or `null` if the
|
| + * client has not provided a name.
|
| + */
|
| + String name;
|
| +
|
| + /**
|
| + * The set of analysis options controlling the behavior of this context.
|
| + */
|
| + AnalysisOptionsImpl _options = new AnalysisOptionsImpl();
|
| +
|
| + /**
|
| + * A flag indicating whether errors related to implicitly analyzed sources
|
| + * should be generated and reported.
|
| + */
|
| + bool _generateImplicitErrors = true;
|
| +
|
| + /**
|
| + * A flag indicating whether errors related to sources in the SDK should be
|
| + * generated and reported.
|
| + */
|
| + bool _generateSdkErrors = true;
|
| +
|
| + /**
|
| + * A flag indicating whether this context is disposed.
|
| + */
|
| + bool _disposed = false;
|
| +
|
| + /**
|
| + * A cache of content used to override the default content of a source.
|
| + */
|
| + ContentCache _contentCache = new ContentCache();
|
| +
|
| + /**
|
| + * The source factory used to create the sources that can be analyzed in this
|
| + * context.
|
| + */
|
| + SourceFactory _sourceFactory;
|
| +
|
| + /**
|
| + * The set of declared variables used when computing constant values.
|
| + */
|
| + DeclaredVariables _declaredVariables = new DeclaredVariables();
|
| +
|
| + /**
|
| + * A source representing the core library.
|
| + */
|
| + Source _coreLibrarySource;
|
| +
|
| + /**
|
| + * A source representing the async library.
|
| + */
|
| + Source _asyncLibrarySource;
|
| +
|
| + /**
|
| + * The partition that contains analysis results that are not shared with other
|
| + * contexts.
|
| + */
|
| + CachePartition _privatePartition;
|
| +
|
| + /**
|
| + * A table mapping the sources known to the context to the information known
|
| + * about the source.
|
| + */
|
| + AnalysisCache _cache;
|
| +
|
| + /**
|
| + * A list containing sources for which data should not be flushed.
|
| + */
|
| + List<Source> _priorityOrder = Source.EMPTY_LIST;
|
| +
|
| + /**
|
| + * A map from all sources for which there are futures pending to a list of
|
| + * the corresponding PendingFuture objects. These sources will be analyzed
|
| + * in the same way as priority sources, except with higher priority.
|
| + *
|
| + * TODO(paulberry): since the size of this map is not constrained (as it is
|
| + * for _priorityOrder), we run the risk of creating an analysis loop if
|
| + * re-caching one AST structure causes the AST structure for another source
|
| + * with pending futures to be flushed. However, this is unlikely to happen
|
| + * in practice since sources are removed from this hash set as soon as their
|
| + * futures have completed.
|
| + */
|
| + HashMap<Source, List<PendingFuture>> _pendingFutureSources =
|
| + new HashMap<Source, List<PendingFuture>>();
|
| +
|
| + /**
|
| + * A list containing sources whose AST structure is needed in order to resolve
|
| + * the next library to be resolved.
|
| + */
|
| + HashSet<Source> _neededForResolution = null;
|
| +
|
| + /**
|
| + * A table mapping sources to the change notices that are waiting to be
|
| + * returned related to that source.
|
| + */
|
| + HashMap<Source, ChangeNoticeImpl> _pendingNotices =
|
| + new HashMap<Source, ChangeNoticeImpl>();
|
| +
|
| + /**
|
| + * The object used to record the results of performing an analysis task.
|
| + */
|
| + AnalysisContextImpl_AnalysisTaskResultRecorder _resultRecorder;
|
| +
|
| + /**
|
| + * Cached information used in incremental analysis or `null` if none.
|
| + */
|
| + IncrementalAnalysisCache _incrementalAnalysisCache;
|
| +
|
| + /**
|
| + * The [TypeProvider] for this context, `null` if not yet created.
|
| + */
|
| + TypeProvider _typeProvider;
|
| +
|
| + /**
|
| + * The object used to manage the list of sources that need to be analyzed.
|
| + */
|
| + WorkManager _workManager = new WorkManager();
|
| +
|
| + /**
|
| + * The [Stopwatch] of the current "perform tasks cycle".
|
| + */
|
| + Stopwatch _performAnalysisTaskStopwatch;
|
| +
|
| + /**
|
| + * The controller for sending [SourcesChangedEvent]s.
|
| + */
|
| + StreamController<SourcesChangedEvent> _onSourcesChangedController;
|
| +
|
| + /**
|
| + * A subscription for a stream of events indicating when files are (and are
|
| + * not) being implicitly analyzed.
|
| + */
|
| + StreamController<ImplicitAnalysisEvent> _implicitAnalysisEventsController;
|
| +
|
| + /**
|
| + * The listeners that are to be notified when various analysis results are
|
| + * produced in this context.
|
| + */
|
| + List<AnalysisListener> _listeners = new List<AnalysisListener>();
|
| +
|
| + /**
|
| + * The most recently incrementally resolved source, or `null` when it was
|
| + * already validated, or the most recent change was not incrementally resolved.
|
| + */
|
| + Source incrementalResolutionValidation_lastUnitSource;
|
| +
|
| + /**
|
| + * The most recently incrementally resolved library source, or `null` when it
|
| + * was already validated, or the most recent change was not incrementally
|
| + * resolved.
|
| + */
|
| + Source incrementalResolutionValidation_lastLibrarySource;
|
| +
|
| + /**
|
| + * The result of incremental resolution result of
|
| + * [incrementalResolutionValidation_lastSource].
|
| + */
|
| + CompilationUnit incrementalResolutionValidation_lastUnit;
|
| +
|
| + /**
|
| + * A factory to override how the [ResolverVisitor] is created.
|
| + */
|
| + ResolverVisitorFactory resolverVisitorFactory;
|
| +
|
| + /**
|
| + * A factory to override how the [TypeResolverVisitor] is created.
|
| + */
|
| + TypeResolverVisitorFactory typeResolverVisitorFactory;
|
| +
|
| + /**
|
| + * 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,
|
| + 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.
|
| + // Failure to do so can result in an infinite loop in
|
| + // performAnalysisTask() because re-caching one AST structure
|
| + // can cause another priority source's AST structure to be flushed.
|
| + //
|
| + // TODO(brianwilkerson) Remove this constraint when the new task model is
|
| + // implemented.
|
| + //
|
| + int maxPriorityOrderSize = cacheSize - _PRIORITY_ORDER_SIZE_DELTA;
|
| + if (_priorityOrder.length > maxPriorityOrderSize) {
|
| + _priorityOrder = _priorityOrder.sublist(0, maxPriorityOrderSize);
|
| + }
|
| + }
|
| + this._options.analyzeFunctionBodiesPredicate =
|
| + options.analyzeFunctionBodiesPredicate;
|
| + this._options.generateImplicitErrors = options.generateImplicitErrors;
|
| + 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) {
|
| + _priorityOrder = Source.EMPTY_LIST;
|
| + } else {
|
| + while (sources.remove(null)) {
|
| + // Nothing else to do.
|
| + }
|
| + if (sources.isEmpty) {
|
| + _priorityOrder = Source.EMPTY_LIST;
|
| + }
|
| + //
|
| + // Cap the size of the priority list to being less than the cache size.
|
| + // Failure to do so can result in an infinite loop in
|
| + // performAnalysisTask() because re-caching one AST structure
|
| + // can cause another priority source's AST structure to be flushed.
|
| + //
|
| + int count = math.min(
|
| + sources.length, _options.cacheSize - _PRIORITY_ORDER_SIZE_DELTA);
|
| + _priorityOrder = new List<Source>(count);
|
| + for (int i = 0; i < count; i++) {
|
| + _priorityOrder[i] = sources[i];
|
| + }
|
| + // Ensure entries for every priority source.
|
| + for (var source in _priorityOrder) {
|
| + SourceEntry entry = _getReadableSourceEntry(source);
|
| + if (entry == null) {
|
| + _createSourceEntry(source, false);
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + @override
|
| + set contentCache(ContentCache value) {
|
| + _contentCache = value;
|
| + }
|
| +
|
| + @override
|
| + DeclaredVariables get declaredVariables => _declaredVariables;
|
| +
|
| + @override
|
| + List<AnalysisTarget> get explicitTargets {
|
| + List<AnalysisTarget> targets = <AnalysisTarget>[];
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + if (iterator.value.explicitlyAdded) {
|
| + targets.add(iterator.key);
|
| + }
|
| + }
|
| + return targets;
|
| + }
|
| +
|
| + @override
|
| + List<Source> get htmlSources => _getSources(SourceKind.HTML);
|
| +
|
| + @override
|
| + Stream<ImplicitAnalysisEvent> get implicitAnalysisEvents =>
|
| + _implicitAnalysisEventsController.stream;
|
| +
|
| + @override
|
| + bool get isDisposed => _disposed;
|
| +
|
| + @override
|
| + List<Source> get launchableClientLibrarySources {
|
| + // TODO(brianwilkerson) This needs to filter out libraries that do not
|
| + // reference dart:html, either directly or indirectly.
|
| + List<Source> sources = new List<Source>();
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + Source source = iterator.key;
|
| + SourceEntry sourceEntry = iterator.value;
|
| + if (sourceEntry.kind == SourceKind.LIBRARY && !source.isInSystemLibrary) {
|
| +// DartEntry dartEntry = (DartEntry) sourceEntry;
|
| +// if (dartEntry.getValue(DartEntry.IS_LAUNCHABLE) && dartEntry.getValue(DartEntry.IS_CLIENT)) {
|
| + sources.add(source);
|
| +// }
|
| + }
|
| + }
|
| + return sources;
|
| + }
|
| +
|
| + @override
|
| + List<Source> get launchableServerLibrarySources {
|
| + // TODO(brianwilkerson) This needs to filter out libraries that reference
|
| + // dart:html, either directly or indirectly.
|
| + List<Source> sources = new List<Source>();
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + Source source = iterator.key;
|
| + SourceEntry sourceEntry = iterator.value;
|
| + if (sourceEntry.kind == SourceKind.LIBRARY && !source.isInSystemLibrary) {
|
| +// DartEntry dartEntry = (DartEntry) sourceEntry;
|
| +// if (dartEntry.getValue(DartEntry.IS_LAUNCHABLE) && !dartEntry.getValue(DartEntry.IS_CLIENT)) {
|
| + sources.add(source);
|
| +// }
|
| + }
|
| + }
|
| + return sources;
|
| + }
|
| +
|
| + @override
|
| + List<Source> get librarySources => _getSources(SourceKind.LIBRARY);
|
| +
|
| + /**
|
| + * Look through the cache for a task that needs to be performed. Return the
|
| + * task that was found, or `null` if there is no more work to be done.
|
| + */
|
| + AnalysisTask get nextAnalysisTask {
|
| + bool hintsEnabled = _options.hint;
|
| + bool lintsEnabled = _options.lint;
|
| + bool hasBlockedTask = false;
|
| + //
|
| + // Look for incremental analysis
|
| + //
|
| + if (_incrementalAnalysisCache != null &&
|
| + _incrementalAnalysisCache.hasWork) {
|
| + AnalysisTask task =
|
| + new IncrementalAnalysisTask(this, _incrementalAnalysisCache);
|
| + _incrementalAnalysisCache = null;
|
| + return task;
|
| + }
|
| + //
|
| + // Look for a source that needs to be analyzed because it has futures
|
| + // pending.
|
| + //
|
| + if (_pendingFutureSources.isNotEmpty) {
|
| + List<Source> sourcesToRemove = <Source>[];
|
| + AnalysisTask task;
|
| + for (Source source in _pendingFutureSources.keys) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + List<PendingFuture> pendingFutures = _pendingFutureSources[source];
|
| + for (int i = 0; i < pendingFutures.length;) {
|
| + if (pendingFutures[i].evaluate(sourceEntry)) {
|
| + pendingFutures.removeAt(i);
|
| + } else {
|
| + i++;
|
| + }
|
| + }
|
| + if (pendingFutures.isEmpty) {
|
| + sourcesToRemove.add(source);
|
| + continue;
|
| + }
|
| + AnalysisContextImpl_TaskData taskData = _getNextAnalysisTaskForSource(
|
| + source, sourceEntry, true, hintsEnabled, lintsEnabled);
|
| + task = taskData.task;
|
| + if (task != null) {
|
| + break;
|
| + } else if (taskData.isBlocked) {
|
| + hasBlockedTask = true;
|
| + } else {
|
| + // There is no more work to do for this task, so forcibly complete
|
| + // all its pending futures.
|
| + for (PendingFuture pendingFuture in pendingFutures) {
|
| + pendingFuture.forciblyComplete();
|
| + }
|
| + sourcesToRemove.add(source);
|
| + }
|
| + }
|
| + for (Source source in sourcesToRemove) {
|
| + _pendingFutureSources.remove(source);
|
| + }
|
| + if (task != null) {
|
| + return task;
|
| + }
|
| + }
|
| + //
|
| + // Look for a priority source that needs to be analyzed.
|
| + //
|
| + int priorityCount = _priorityOrder.length;
|
| + for (int i = 0; i < priorityCount; i++) {
|
| + Source source = _priorityOrder[i];
|
| + AnalysisContextImpl_TaskData taskData = _getNextAnalysisTaskForSource(
|
| + source, _cache.get(source), true, hintsEnabled, lintsEnabled);
|
| + AnalysisTask task = taskData.task;
|
| + if (task != null) {
|
| + return task;
|
| + } else if (taskData.isBlocked) {
|
| + hasBlockedTask = true;
|
| + }
|
| + }
|
| + if (_neededForResolution != null) {
|
| + List<Source> sourcesToRemove = new List<Source>();
|
| + for (Source source in _neededForResolution) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + if (!dartEntry.hasResolvableCompilationUnit) {
|
| + if (dartEntry.getState(DartEntry.PARSED_UNIT) == CacheState.ERROR) {
|
| + sourcesToRemove.add(source);
|
| + } else {
|
| + AnalysisContextImpl_TaskData taskData =
|
| + _createParseDartTask(source, dartEntry);
|
| + AnalysisTask task = taskData.task;
|
| + if (task != null) {
|
| + return task;
|
| + } else if (taskData.isBlocked) {
|
| + hasBlockedTask = true;
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + int count = sourcesToRemove.length;
|
| + for (int i = 0; i < count; i++) {
|
| + _neededForResolution.remove(sourcesToRemove[i]);
|
| + }
|
| + }
|
| + //
|
| + // Look for a non-priority source that needs to be analyzed.
|
| + //
|
| + List<Source> sourcesToRemove = new List<Source>();
|
| + WorkManager_WorkIterator sources = _workManager.iterator();
|
| + try {
|
| + while (sources.hasNext) {
|
| + Source source = sources.next();
|
| + AnalysisContextImpl_TaskData taskData = _getNextAnalysisTaskForSource(
|
| + source, _cache.get(source), false, hintsEnabled, lintsEnabled);
|
| + AnalysisTask task = taskData.task;
|
| + if (task != null) {
|
| + return task;
|
| + } else if (taskData.isBlocked) {
|
| + hasBlockedTask = true;
|
| + } else {
|
| + sourcesToRemove.add(source);
|
| + }
|
| + }
|
| + } finally {
|
| + int count = sourcesToRemove.length;
|
| + for (int i = 0; i < count; i++) {
|
| + _workManager.remove(sourcesToRemove[i]);
|
| + }
|
| + }
|
| + if (hasBlockedTask) {
|
| + // All of the analysis work is blocked waiting for an asynchronous task
|
| + // to complete.
|
| + return WaitForAsyncTask.instance;
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + Stream<SourcesChangedEvent> get onSourcesChanged =>
|
| + _onSourcesChangedController.stream;
|
| +
|
| + /**
|
| + * Make _pendingFutureSources available to unit tests.
|
| + */
|
| + HashMap<Source, List<PendingFuture>> get pendingFutureSources_forTesting =>
|
| + _pendingFutureSources;
|
| +
|
| + @override
|
| + List<Source> get prioritySources => _priorityOrder;
|
| +
|
| + @override
|
| + List<AnalysisTarget> get priorityTargets => prioritySources;
|
| +
|
| + @override
|
| + CachePartition get privateAnalysisCachePartition => _privatePartition;
|
| +
|
| + @override
|
| + SourceFactory get sourceFactory => _sourceFactory;
|
| +
|
| + @override
|
| + void set sourceFactory(SourceFactory factory) {
|
| + if (identical(_sourceFactory, factory)) {
|
| + return;
|
| + } else if (factory.context != null) {
|
| + throw new IllegalStateException(
|
| + "Source factories cannot be shared between contexts");
|
| + }
|
| + if (_sourceFactory != null) {
|
| + _sourceFactory.context = null;
|
| + }
|
| + factory.context = this;
|
| + _sourceFactory = factory;
|
| + _coreLibrarySource = _sourceFactory.forUri(DartSdk.DART_CORE);
|
| + _asyncLibrarySource = _sourceFactory.forUri(DartSdk.DART_ASYNC);
|
| + _cache = createCacheFromSourceFactory(factory);
|
| + _invalidateAllLocalResolutionInformation(true);
|
| + }
|
| +
|
| + @override
|
| + List<Source> get sources {
|
| + List<Source> sources = new List<Source>();
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + sources.add(iterator.key);
|
| + }
|
| + return sources;
|
| + }
|
| +
|
| + /**
|
| + * Return a list of the sources that would be processed by
|
| + * [performAnalysisTask]. This method duplicates, and must therefore be kept
|
| + * in sync with, [getNextAnalysisTask]. This method is intended to be used for
|
| + * testing purposes only.
|
| + */
|
| + List<Source> get sourcesNeedingProcessing {
|
| + HashSet<Source> sources = new HashSet<Source>();
|
| + bool hintsEnabled = _options.hint;
|
| + bool lintsEnabled = _options.lint;
|
| +
|
| + //
|
| + // Look for priority sources that need to be analyzed.
|
| + //
|
| + for (Source source in _priorityOrder) {
|
| + _getSourcesNeedingProcessing(source, _cache.get(source), true,
|
| + hintsEnabled, lintsEnabled, sources);
|
| + }
|
| + //
|
| + // Look for non-priority sources that need to be analyzed.
|
| + //
|
| + WorkManager_WorkIterator iterator = _workManager.iterator();
|
| + while (iterator.hasNext) {
|
| + Source source = iterator.next();
|
| + _getSourcesNeedingProcessing(source, _cache.get(source), false,
|
| + hintsEnabled, lintsEnabled, sources);
|
| + }
|
| + return new List<Source>.from(sources);
|
| + }
|
| +
|
| + @override
|
| + AnalysisContextStatistics get statistics {
|
| + AnalysisContextStatisticsImpl statistics =
|
| + new AnalysisContextStatisticsImpl();
|
| + visitCacheItems(statistics._internalPutCacheItem);
|
| + statistics.partitionData = _cache.partitionData;
|
| + return statistics;
|
| + }
|
| +
|
| + IncrementalAnalysisCache get test_incrementalAnalysisCache {
|
| + return _incrementalAnalysisCache;
|
| + }
|
| +
|
| + set test_incrementalAnalysisCache(IncrementalAnalysisCache value) {
|
| + _incrementalAnalysisCache = value;
|
| + }
|
| +
|
| + List<Source> get test_priorityOrder => _priorityOrder;
|
| +
|
| + @override
|
| + TypeProvider get typeProvider {
|
| + if (_typeProvider != null) {
|
| + return _typeProvider;
|
| + }
|
| + Source coreSource = sourceFactory.forUri(DartSdk.DART_CORE);
|
| + if (coreSource == null) {
|
| + throw new AnalysisException("Could not create a source for dart:core");
|
| + }
|
| + LibraryElement coreElement = computeLibraryElement(coreSource);
|
| + if (coreElement == null) {
|
| + throw new AnalysisException("Could not create an element for dart:core");
|
| + }
|
| + Source asyncSource = sourceFactory.forUri(DartSdk.DART_ASYNC);
|
| + if (asyncSource == null) {
|
| + throw new AnalysisException("Could not create a source for dart:async");
|
| + }
|
| + LibraryElement asyncElement = computeLibraryElement(asyncSource);
|
| + if (asyncElement == null) {
|
| + throw new AnalysisException("Could not create an element for dart:async");
|
| + }
|
| + _typeProvider = new TypeProviderImpl(coreElement, asyncElement);
|
| + return _typeProvider;
|
| + }
|
| +
|
| + /**
|
| + * Sets the [TypeProvider] for this context.
|
| + */
|
| + void set typeProvider(TypeProvider typeProvider) {
|
| + _typeProvider = typeProvider;
|
| + }
|
| +
|
| + @override
|
| + void addListener(AnalysisListener listener) {
|
| + if (!_listeners.contains(listener)) {
|
| + _listeners.add(listener);
|
| + }
|
| + }
|
| +
|
| + @override
|
| + void applyAnalysisDelta(AnalysisDelta delta) {
|
| + ChangeSet changeSet = new ChangeSet();
|
| + delta.analysisLevels.forEach((Source source, AnalysisLevel level) {
|
| + if (level == AnalysisLevel.NONE) {
|
| + changeSet.removedSource(source);
|
| + } else {
|
| + changeSet.addedSource(source);
|
| + }
|
| + });
|
| + applyChanges(changeSet);
|
| + }
|
| +
|
| + @override
|
| + void applyChanges(ChangeSet changeSet) {
|
| + if (changeSet.isEmpty) {
|
| + return;
|
| + }
|
| + //
|
| + // First, compute the list of sources that have been removed.
|
| + //
|
| + List<Source> removedSources =
|
| + new List<Source>.from(changeSet.removedSources);
|
| + for (SourceContainer container in changeSet.removedContainers) {
|
| + _addSourcesInContainer(removedSources, container);
|
| + }
|
| + //
|
| + // Then determine which cached results are no longer valid.
|
| + //
|
| + for (Source source in changeSet.addedSources) {
|
| + _sourceAvailable(source);
|
| + }
|
| + for (Source source in changeSet.changedSources) {
|
| + if (_contentCache.getContents(source) != null) {
|
| + // This source is overridden in the content cache, so the change will
|
| + // have no effect. Just ignore it to avoid wasting time doing
|
| + // re-analysis.
|
| + continue;
|
| + }
|
| + _sourceChanged(source);
|
| + }
|
| + changeSet.changedContents.forEach((Source key, String value) {
|
| + _contentsChanged(key, value, false);
|
| + });
|
| + changeSet.changedRanges
|
| + .forEach((Source source, ChangeSet_ContentChange change) {
|
| + _contentRangeChanged(source, change.contents, change.offset,
|
| + change.oldLength, change.newLength);
|
| + });
|
| + for (Source source in changeSet.deletedSources) {
|
| + _sourceDeleted(source);
|
| + }
|
| + for (Source source in removedSources) {
|
| + _sourceRemoved(source);
|
| + }
|
| + _onSourcesChangedController.add(new SourcesChangedEvent(changeSet));
|
| + }
|
| +
|
| + @override
|
| + String computeDocumentationComment(Element element) {
|
| + if (element == null) {
|
| + return null;
|
| + }
|
| + Source source = element.source;
|
| + if (source == null) {
|
| + return null;
|
| + }
|
| + CompilationUnit unit = parseCompilationUnit(source);
|
| + if (unit == null) {
|
| + return null;
|
| + }
|
| + NodeLocator locator = new NodeLocator(element.nameOffset);
|
| + AstNode nameNode = locator.searchWithin(unit);
|
| + while (nameNode != null) {
|
| + if (nameNode is AnnotatedNode) {
|
| + Comment comment = nameNode.documentationComment;
|
| + if (comment == null) {
|
| + return null;
|
| + }
|
| + StringBuffer buffer = new StringBuffer();
|
| + List<Token> tokens = comment.tokens;
|
| + for (int i = 0; i < tokens.length; i++) {
|
| + if (i > 0) {
|
| + buffer.write("\n");
|
| + }
|
| + buffer.write(tokens[i].lexeme);
|
| + }
|
| + return buffer.toString();
|
| + }
|
| + nameNode = nameNode.parent;
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + List<AnalysisError> computeErrors(Source source) {
|
| + bool enableHints = _options.hint;
|
| + bool enableLints = _options.lint;
|
| +
|
| + SourceEntry sourceEntry = _getReadableSourceEntry(source);
|
| + if (sourceEntry is DartEntry) {
|
| + 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));
|
| + dartEntry = _getReadableDartEntry(source);
|
| + 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));
|
| + dartEntry = _getReadableDartEntry(source);
|
| + ListUtilities.addAll(
|
| + errors,
|
| + _getDartVerificationData(source, librarySource, dartEntry,
|
| + DartEntry.VERIFICATION_ERRORS));
|
| + if (enableHints) {
|
| + dartEntry = _getReadableDartEntry(source);
|
| + ListUtilities.addAll(
|
| + errors,
|
| + _getDartHintData(
|
| + source, librarySource, dartEntry, DartEntry.HINTS));
|
| + }
|
| + if (enableLints) {
|
| + dartEntry = _getReadableDartEntry(source);
|
| + 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;
|
| + }
|
| + return errors;
|
| + } else if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + try {
|
| + return _getHtmlResolutionData2(
|
| + source, htmlEntry, HtmlEntry.RESOLUTION_ERRORS);
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not compute errors",
|
| + new CaughtException(exception, stackTrace));
|
| + }
|
| + }
|
| + return AnalysisError.NO_ERRORS;
|
| + }
|
| +
|
| + @override
|
| + List<Source> computeExportedLibraries(Source source) => _getDartParseData2(
|
| + source, DartEntry.EXPORTED_LIBRARIES, Source.EMPTY_LIST);
|
| +
|
| + @override
|
| + @deprecated
|
| + HtmlElement computeHtmlElement(Source source) =>
|
| + _getHtmlResolutionData(source, HtmlEntry.ELEMENT, null);
|
| +
|
| + @override
|
| + List<Source> computeImportedLibraries(Source source) => _getDartParseData2(
|
| + source, DartEntry.IMPORTED_LIBRARIES, Source.EMPTY_LIST);
|
| +
|
| + @override
|
| + SourceKind computeKindOf(Source source) {
|
| + SourceEntry sourceEntry = _getReadableSourceEntry(source);
|
| + if (sourceEntry == null) {
|
| + return SourceKind.UNKNOWN;
|
| + } else if (sourceEntry is DartEntry) {
|
| + try {
|
| + return _getDartParseData(source, sourceEntry, DartEntry.SOURCE_KIND);
|
| + } on AnalysisException {
|
| + return SourceKind.UNKNOWN;
|
| + }
|
| + }
|
| + return sourceEntry.kind;
|
| + }
|
| +
|
| + @override
|
| + LibraryElement computeLibraryElement(Source source) =>
|
| + _getDartResolutionData2(source, source, DartEntry.ELEMENT, null);
|
| +
|
| + @override
|
| + LineInfo computeLineInfo(Source source) {
|
| + SourceEntry sourceEntry = _getReadableSourceEntry(source);
|
| + try {
|
| + if (sourceEntry is HtmlEntry) {
|
| + return _getHtmlParseData(source, SourceEntry.LINE_INFO, null);
|
| + } else if (sourceEntry is DartEntry) {
|
| + return _getDartScanData2(source, SourceEntry.LINE_INFO, null);
|
| + }
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not compute ${SourceEntry.LINE_INFO}",
|
| + new CaughtException(exception, stackTrace));
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + CompilationUnit computeResolvableCompilationUnit(Source source) {
|
| + DartEntry dartEntry = _getReadableDartEntry(source);
|
| + if (dartEntry == null) {
|
| + throw new AnalysisException(
|
| + "computeResolvableCompilationUnit for non-Dart: ${source.fullName}");
|
| + }
|
| + dartEntry = _cacheDartParseData(source, dartEntry, DartEntry.PARSED_UNIT);
|
| + CompilationUnit unit = dartEntry.resolvableCompilationUnit;
|
| + if (unit == null) {
|
| + 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) {
|
| + 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();
|
| + });
|
| + }
|
| +
|
| + @override
|
| + Object computeResult(AnalysisTarget target, ResultDescriptor result) {
|
| + return result.defaultValue;
|
| + }
|
| +
|
| + /**
|
| + * Create an analysis cache based on the given source [factory].
|
| + */
|
| + AnalysisCache createCacheFromSourceFactory(SourceFactory factory) {
|
| + if (factory == null) {
|
| + return new AnalysisCache(<CachePartition>[_privatePartition]);
|
| + }
|
| + DartSdk sdk = factory.dartSdk;
|
| + if (sdk == null) {
|
| + return new AnalysisCache(<CachePartition>[_privatePartition]);
|
| + }
|
| + return new AnalysisCache(<CachePartition>[
|
| + AnalysisEngine.instance.partitionManager.forSdk(sdk),
|
| + _privatePartition
|
| + ]);
|
| + }
|
| +
|
| + @override
|
| + void dispose() {
|
| + _disposed = true;
|
| + for (List<PendingFuture> pendingFutures in _pendingFutureSources.values) {
|
| + for (PendingFuture pendingFuture in pendingFutures) {
|
| + pendingFuture.forciblyComplete();
|
| + }
|
| + }
|
| + _pendingFutureSources.clear();
|
| + }
|
| +
|
| + @override
|
| + List<CompilationUnit> ensureResolvedDartUnits(Source unitSource) {
|
| + SourceEntry sourceEntry = _cache.get(unitSource);
|
| + if (sourceEntry is! DartEntry) {
|
| + return null;
|
| + }
|
| + DartEntry dartEntry = sourceEntry;
|
| + // Check every library.
|
| + List<CompilationUnit> units = <CompilationUnit>[];
|
| + List<Source> containingLibraries = dartEntry.containingLibraries;
|
| + for (Source librarySource in containingLibraries) {
|
| + CompilationUnit unit =
|
| + dartEntry.getValueInLibrary(DartEntry.RESOLVED_UNIT, librarySource);
|
| + if (unit == null) {
|
| + units = null;
|
| + break;
|
| + }
|
| + units.add(unit);
|
| + }
|
| + // Invalidate the flushed RESOLVED_UNIT to force it eventually.
|
| + if (units == null) {
|
| + bool shouldBeScheduled = false;
|
| + for (Source librarySource in containingLibraries) {
|
| + if (dartEntry.getStateInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource) ==
|
| + CacheState.FLUSHED) {
|
| + dartEntry.setStateInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource, CacheState.INVALID);
|
| + shouldBeScheduled = true;
|
| + }
|
| + }
|
| + if (shouldBeScheduled) {
|
| + _workManager.add(unitSource, SourcePriority.UNKNOWN);
|
| + }
|
| + // We cannot provide resolved units right now,
|
| + // but the future analysis will.
|
| + return null;
|
| + }
|
| + // done
|
| + return units;
|
| + }
|
| +
|
| + @override
|
| + bool exists(Source source) {
|
| + if (source == null) {
|
| + return false;
|
| + }
|
| + if (_contentCache.getContents(source) != null) {
|
| + return true;
|
| + }
|
| + return source.exists();
|
| + }
|
| +
|
| + @override
|
| + cache.CacheEntry getCacheEntry(AnalysisTarget target) {
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + CompilationUnitElement getCompilationUnitElement(
|
| + Source unitSource, Source librarySource) {
|
| + LibraryElement libraryElement = getLibraryElement(librarySource);
|
| + if (libraryElement != null) {
|
| + // try defining unit
|
| + CompilationUnitElement definingUnit =
|
| + libraryElement.definingCompilationUnit;
|
| + if (definingUnit.source == unitSource) {
|
| + return definingUnit;
|
| + }
|
| + // try parts
|
| + for (CompilationUnitElement partUnit in libraryElement.parts) {
|
| + if (partUnit.source == unitSource) {
|
| + return partUnit;
|
| + }
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @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
|
| + InternalAnalysisContext getContextFor(Source source) {
|
| + InternalAnalysisContext context = _cache.getContextFor(source);
|
| + return context == null ? this : context;
|
| + }
|
| +
|
| + @override
|
| + Element getElement(ElementLocation location) {
|
| + // TODO(brianwilkerson) This should not be a "get" method.
|
| + try {
|
| + List<String> components = location.components;
|
| + Source source = _computeSourceFromEncoding(components[0]);
|
| + String sourceName = source.shortName;
|
| + if (AnalysisEngine.isDartFileName(sourceName)) {
|
| + ElementImpl element = computeLibraryElement(source) as ElementImpl;
|
| + for (int i = 1; i < components.length; i++) {
|
| + if (element == null) {
|
| + return null;
|
| + }
|
| + element = element.getChild(components[i]);
|
| + }
|
| + return element;
|
| + }
|
| + if (AnalysisEngine.isHtmlFileName(sourceName)) {
|
| + return computeHtmlElement(source);
|
| + }
|
| + } catch (exception) {
|
| + // If the location cannot be decoded for some reason then the underlying
|
| + // cause should have been logged already and we can fall though to return
|
| + // null.
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + AnalysisErrorInfo getErrors(Source source) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + return new AnalysisErrorInfoImpl(
|
| + dartEntry.allErrors, dartEntry.getValue(SourceEntry.LINE_INFO));
|
| + } else if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + return new AnalysisErrorInfoImpl(
|
| + htmlEntry.allErrors, htmlEntry.getValue(SourceEntry.LINE_INFO));
|
| + }
|
| + return new AnalysisErrorInfoImpl(AnalysisError.NO_ERRORS, null);
|
| + }
|
| +
|
| + @override
|
| + @deprecated
|
| + HtmlElement getHtmlElement(Source source) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry is HtmlEntry) {
|
| + return sourceEntry.getValue(HtmlEntry.ELEMENT);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + List<Source> getHtmlFilesReferencing(Source source) {
|
| + SourceKind sourceKind = getKindOf(source);
|
| + if (sourceKind == null) {
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + List<Source> htmlSources = new List<Source>();
|
| + while (true) {
|
| + if (sourceKind == SourceKind.PART) {
|
| + List<Source> librarySources = getLibrariesContaining(source);
|
| + MapIterator<Source, SourceEntry> partIterator = _cache.iterator();
|
| + while (partIterator.moveNext()) {
|
| + SourceEntry sourceEntry = partIterator.value;
|
| + if (sourceEntry.kind == SourceKind.HTML) {
|
| + List<Source> referencedLibraries = (sourceEntry as HtmlEntry)
|
| + .getValue(HtmlEntry.REFERENCED_LIBRARIES);
|
| + if (_containsAny(referencedLibraries, librarySources)) {
|
| + htmlSources.add(partIterator.key);
|
| + }
|
| + }
|
| + }
|
| + } else {
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + SourceEntry sourceEntry = iterator.value;
|
| + if (sourceEntry.kind == SourceKind.HTML) {
|
| + List<Source> referencedLibraries = (sourceEntry as HtmlEntry)
|
| + .getValue(HtmlEntry.REFERENCED_LIBRARIES);
|
| + if (_contains(referencedLibraries, source)) {
|
| + htmlSources.add(iterator.key);
|
| + }
|
| + }
|
| + }
|
| + }
|
| + break;
|
| + }
|
| + if (htmlSources.isEmpty) {
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + return htmlSources;
|
| + }
|
| +
|
| + @override
|
| + SourceKind getKindOf(Source source) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry == null) {
|
| + return SourceKind.UNKNOWN;
|
| + }
|
| + return sourceEntry.kind;
|
| + }
|
| +
|
| + @override
|
| + List<Source> getLibrariesContaining(Source source) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry is DartEntry) {
|
| + return sourceEntry.containingLibraries;
|
| + }
|
| + return Source.EMPTY_LIST;
|
| + }
|
| +
|
| + @override
|
| + List<Source> getLibrariesDependingOn(Source librarySource) {
|
| + List<Source> dependentLibraries = new List<Source>();
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + SourceEntry sourceEntry = iterator.value;
|
| + if (sourceEntry.kind == SourceKind.LIBRARY) {
|
| + if (_contains(
|
| + (sourceEntry as DartEntry).getValue(DartEntry.EXPORTED_LIBRARIES),
|
| + librarySource)) {
|
| + dependentLibraries.add(iterator.key);
|
| + }
|
| + if (_contains(
|
| + (sourceEntry as DartEntry).getValue(DartEntry.IMPORTED_LIBRARIES),
|
| + librarySource)) {
|
| + dependentLibraries.add(iterator.key);
|
| + }
|
| + }
|
| + }
|
| + if (dependentLibraries.isEmpty) {
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + return dependentLibraries;
|
| + }
|
| +
|
| + @override
|
| + List<Source> getLibrariesReferencedFromHtml(Source htmlSource) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(htmlSource);
|
| + if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + return htmlEntry.getValue(HtmlEntry.REFERENCED_LIBRARIES);
|
| + }
|
| + return Source.EMPTY_LIST;
|
| + }
|
| +
|
| + @override
|
| + LibraryElement getLibraryElement(Source source) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry is DartEntry) {
|
| + return sourceEntry.getValue(DartEntry.ELEMENT);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + LineInfo getLineInfo(Source source) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry != null) {
|
| + return sourceEntry.getValue(SourceEntry.LINE_INFO);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + int getModificationStamp(Source source) {
|
| + int stamp = _contentCache.getModificationStamp(source);
|
| + if (stamp != null) {
|
| + return stamp;
|
| + }
|
| + return source.modificationStamp;
|
| + }
|
| +
|
| + @override
|
| + ChangeNoticeImpl getNotice(Source source) {
|
| + ChangeNoticeImpl notice = _pendingNotices[source];
|
| + if (notice == null) {
|
| + notice = new ChangeNoticeImpl(source);
|
| + _pendingNotices[source] = notice;
|
| + }
|
| + return notice;
|
| + }
|
| +
|
| + @override
|
| + Namespace getPublicNamespace(LibraryElement library) {
|
| + // TODO(brianwilkerson) Rename this to not start with 'get'.
|
| + // Note that this is not part of the API of the interface.
|
| + Source source = library.definingCompilationUnit.source;
|
| + DartEntry dartEntry = _getReadableDartEntry(source);
|
| + if (dartEntry == null) {
|
| + return null;
|
| + }
|
| + 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(
|
| + "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;
|
| + }
|
| +
|
| + /**
|
| + * Return the cache entry associated with the given [source], or `null` if
|
| + * there is no entry associated with the source.
|
| + */
|
| + SourceEntry getReadableSourceEntryOrNull(Source source) => _cache.get(source);
|
| +
|
| + @override
|
| + CompilationUnit getResolvedCompilationUnit(
|
| + Source unitSource, LibraryElement library) {
|
| + if (library == null) {
|
| + return null;
|
| + }
|
| + return getResolvedCompilationUnit2(unitSource, library.source);
|
| + }
|
| +
|
| + @override
|
| + CompilationUnit getResolvedCompilationUnit2(
|
| + Source unitSource, Source librarySource) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(unitSource);
|
| + if (sourceEntry is DartEntry) {
|
| + return sourceEntry.getValueInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + @deprecated
|
| + ht.HtmlUnit getResolvedHtmlUnit(Source htmlSource) {
|
| + SourceEntry sourceEntry = getReadableSourceEntryOrNull(htmlSource);
|
| + if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + return htmlEntry.getValue(HtmlEntry.RESOLVED_UNIT);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + Object getResult(AnalysisTarget target, ResultDescriptor result) {
|
| + return result.defaultValue;
|
| + }
|
| +
|
| + @override
|
| + List<Source> getSourcesWithFullName(String path) {
|
| + List<Source> sources = <Source>[];
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + if (iterator.key.fullName == path) {
|
| + sources.add(iterator.key);
|
| + }
|
| + }
|
| + return sources;
|
| + }
|
| +
|
| + @override
|
| + bool handleContentsChanged(
|
| + Source source, String originalContents, String newContents, bool notify) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry == null) {
|
| + return false;
|
| + }
|
| + bool changed = newContents != originalContents;
|
| + if (newContents != null) {
|
| + if (changed) {
|
| + _incrementalAnalysisCache =
|
| + IncrementalAnalysisCache.clear(_incrementalAnalysisCache, source);
|
| + if (!analysisOptions.incremental ||
|
| + !_tryPoorMansIncrementalResolution(source, newContents)) {
|
| + _sourceChanged(source);
|
| + }
|
| + sourceEntry.modificationTime =
|
| + _contentCache.getModificationStamp(source);
|
| + sourceEntry.setValue(SourceEntry.CONTENT, newContents);
|
| + } else {
|
| + sourceEntry.modificationTime =
|
| + _contentCache.getModificationStamp(source);
|
| + }
|
| + } else if (originalContents != null) {
|
| + _incrementalAnalysisCache =
|
| + IncrementalAnalysisCache.clear(_incrementalAnalysisCache, source);
|
| + // We are removing the overlay for the file, check if the file's
|
| + // contents is the same as it was in the overlay.
|
| + try {
|
| + TimestampedData<String> fileContents = getContents(source);
|
| + newContents = fileContents.data;
|
| + sourceEntry.modificationTime = fileContents.modificationTime;
|
| + if (newContents == originalContents) {
|
| + sourceEntry.setValue(SourceEntry.CONTENT, newContents);
|
| + changed = false;
|
| + }
|
| + } catch (e) {}
|
| + // If not the same content (e.g. the file is being closed without save),
|
| + // then force analysis.
|
| + if (changed) {
|
| + if (!analysisOptions.incremental ||
|
| + !_tryPoorMansIncrementalResolution(source, newContents)) {
|
| + _sourceChanged(source);
|
| + }
|
| + }
|
| + }
|
| + if (notify && changed) {
|
| + _onSourcesChangedController
|
| + .add(new SourcesChangedEvent.changedContent(source, newContents));
|
| + }
|
| + return changed;
|
| + }
|
| +
|
| + @override
|
| + void invalidateLibraryHints(Source librarySource) {
|
| + SourceEntry sourceEntry = _cache.get(librarySource);
|
| + if (sourceEntry is! DartEntry) {
|
| + return;
|
| + }
|
| + DartEntry dartEntry = sourceEntry;
|
| + // Prepare sources to invalidate hints in.
|
| + List<Source> sources = <Source>[librarySource];
|
| + sources.addAll(dartEntry.getValue(DartEntry.INCLUDED_PARTS));
|
| + // Invalidate hints and lints.
|
| + for (Source source in sources) {
|
| + DartEntry dartEntry = _cache.get(source);
|
| + if (dartEntry.getStateInLibrary(DartEntry.HINTS, librarySource) ==
|
| + CacheState.VALID) {
|
| + dartEntry.setStateInLibrary(
|
| + DartEntry.HINTS, librarySource, CacheState.INVALID);
|
| + }
|
| + if (dartEntry.getStateInLibrary(DartEntry.LINTS, librarySource) ==
|
| + CacheState.VALID) {
|
| + dartEntry.setStateInLibrary(
|
| + DartEntry.LINTS, librarySource, CacheState.INVALID);
|
| + }
|
| + }
|
| + }
|
| +
|
| + @override
|
| + bool isClientLibrary(Source librarySource) {
|
| + SourceEntry sourceEntry = _getReadableSourceEntry(librarySource);
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + return dartEntry.getValue(DartEntry.IS_CLIENT) &&
|
| + dartEntry.getValue(DartEntry.IS_LAUNCHABLE);
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + @override
|
| + bool isServerLibrary(Source librarySource) {
|
| + SourceEntry sourceEntry = _getReadableSourceEntry(librarySource);
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + return !dartEntry.getValue(DartEntry.IS_CLIENT) &&
|
| + dartEntry.getValue(DartEntry.IS_LAUNCHABLE);
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + @override
|
| + Stream<ComputedResult> onResultComputed(ResultDescriptor descriptor) {
|
| + throw new NotImplementedException('In not task-based AnalysisContext.');
|
| + }
|
| +
|
| + @override
|
| + CompilationUnit parseCompilationUnit(Source source) =>
|
| + _getDartParseData2(source, DartEntry.PARSED_UNIT, null);
|
| +
|
| + @override
|
| + Document parseHtmlDocument(Source source) {
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + @deprecated
|
| + ht.HtmlUnit parseHtmlUnit(Source source) =>
|
| + _getHtmlParseData(source, HtmlEntry.PARSED_UNIT, null);
|
| +
|
| + @override
|
| + AnalysisResult performAnalysisTask() {
|
| + if (_TRACE_PERFORM_TASK) {
|
| + print("----------------------------------------");
|
| + }
|
| + 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,
|
| + '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();
|
| + _notifyAboutToPerformTask(taskDescription);
|
| + if (_TRACE_PERFORM_TASK) {
|
| + print(taskDescription);
|
| + }
|
| + int performStart = JavaSystem.currentTimeMillis();
|
| + try {
|
| + task.perform(_resultRecorder);
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not perform analysis task: $taskDescription",
|
| + new CaughtException(exception, stackTrace));
|
| + } on AnalysisException catch (exception, stackTrace) {
|
| + if (exception.cause is! JavaIOException) {
|
| + AnalysisEngine.instance.logger.logError(
|
| + "Internal error while performing the task: $task",
|
| + new CaughtException(exception, stackTrace));
|
| + }
|
| + }
|
| + int performEnd = JavaSystem.currentTimeMillis();
|
| + List<ChangeNotice> notices = _getChangeNotices(false);
|
| + int noticeCount = notices.length;
|
| + for (int i = 0; i < noticeCount; i++) {
|
| + ChangeNotice notice = notices[i];
|
| + Source source = notice.source;
|
| + // TODO(brianwilkerson) Figure out whether the compilation unit is
|
| + // always resolved, or whether we need to decide whether to invoke the
|
| + // "parsed" or "resolved" method. This might be better done when
|
| + // recording task results in order to reduce the chance of errors.
|
| +// if (notice.getCompilationUnit() != null) {
|
| +// notifyResolvedDart(source, notice.getCompilationUnit());
|
| +// } else if (notice.getHtmlUnit() != null) {
|
| +// notifyResolvedHtml(source, notice.getHtmlUnit());
|
| +// }
|
| + _notifyErrors(source, notice.errors, notice.lineInfo);
|
| + }
|
| + return new AnalysisResult(notices, getEnd - getStart,
|
| + task.runtimeType.toString(), performEnd - performStart);
|
| + });
|
| + }
|
| +
|
| + @override
|
| + void recordLibraryElements(Map<Source, LibraryElement> elementMap) {
|
| + Source htmlSource = _sourceFactory.forUri(DartSdk.DART_HTML);
|
| + elementMap.forEach((Source librarySource, LibraryElement library) {
|
| + //
|
| + // Cache the element in the library's info.
|
| + //
|
| + DartEntry dartEntry = _getReadableDartEntry(librarySource);
|
| + if (dartEntry != null) {
|
| + _recordElementData(dartEntry, library, library.source, htmlSource);
|
| + dartEntry.setState(SourceEntry.CONTENT, CacheState.FLUSHED);
|
| + dartEntry.setValue(SourceEntry.LINE_INFO, new LineInfo(<int>[0]));
|
| + // DartEntry.ELEMENT - set in recordElementData
|
| + dartEntry.setValue(DartEntry.EXPORTED_LIBRARIES, Source.EMPTY_LIST);
|
| + dartEntry.setValue(DartEntry.IMPORTED_LIBRARIES, Source.EMPTY_LIST);
|
| + dartEntry.setValue(DartEntry.INCLUDED_PARTS, Source.EMPTY_LIST);
|
| + // DartEntry.IS_CLIENT - set in recordElementData
|
| + // DartEntry.IS_LAUNCHABLE - set in recordElementData
|
| + dartEntry.setValue(DartEntry.PARSE_ERRORS, AnalysisError.NO_ERRORS);
|
| + dartEntry.setState(DartEntry.PARSED_UNIT, CacheState.FLUSHED);
|
| + dartEntry.setState(DartEntry.PUBLIC_NAMESPACE, CacheState.FLUSHED);
|
| + dartEntry.setValue(DartEntry.SCAN_ERRORS, AnalysisError.NO_ERRORS);
|
| + dartEntry.setValue(DartEntry.SOURCE_KIND, SourceKind.LIBRARY);
|
| + dartEntry.setState(DartEntry.TOKEN_STREAM, CacheState.FLUSHED);
|
| + dartEntry.setValueInLibrary(DartEntry.RESOLUTION_ERRORS, librarySource,
|
| + AnalysisError.NO_ERRORS);
|
| + dartEntry.setStateInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource, CacheState.FLUSHED);
|
| + dartEntry.setValueInLibrary(DartEntry.VERIFICATION_ERRORS,
|
| + librarySource, AnalysisError.NO_ERRORS);
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.HINTS, librarySource, AnalysisError.NO_ERRORS);
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.LINTS, librarySource, AnalysisError.NO_ERRORS);
|
| + }
|
| + });
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry recordResolveDartLibraryCycleTaskResults(
|
| + ResolveDartLibraryCycleTask task) {
|
| + LibraryResolver2 resolver = task.libraryResolver;
|
| + CaughtException thrownException = task.exception;
|
| + Source unitSource = task.unitSource;
|
| + DartEntry unitEntry = _getReadableDartEntry(unitSource);
|
| + if (resolver != null) {
|
| + //
|
| + // The resolver should only be null if an exception was thrown before (or
|
| + // while) it was being created.
|
| + //
|
| + List<ResolvableLibrary> resolvedLibraries = resolver.resolvedLibraries;
|
| + if (resolvedLibraries == null) {
|
| + //
|
| + // The resolved libraries should only be null if an exception was thrown
|
| + // during resolution.
|
| + //
|
| + if (thrownException == null) {
|
| + var message = "In recordResolveDartLibraryCycleTaskResults, "
|
| + "resolvedLibraries was null and there was no thrown exception";
|
| + unitEntry.recordResolutionError(
|
| + new CaughtException(new AnalysisException(message), null));
|
| + } else {
|
| + unitEntry.recordResolutionError(thrownException);
|
| + }
|
| + _removeFromCache(unitSource);
|
| + if (thrownException != null) {
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + return unitEntry;
|
| + }
|
| + Source htmlSource = sourceFactory.forUri(DartSdk.DART_HTML);
|
| + RecordingErrorListener errorListener = resolver.errorListener;
|
| + for (ResolvableLibrary library in resolvedLibraries) {
|
| + Source librarySource = library.librarySource;
|
| + for (Source source in library.compilationUnitSources) {
|
| + CompilationUnit unit = library.getAST(source);
|
| + List<AnalysisError> errors = errorListener.getErrorsForSource(source);
|
| + LineInfo lineInfo = getLineInfo(source);
|
| + DartEntry dartEntry = _cache.get(source);
|
| + if (thrownException == null) {
|
| + dartEntry.setState(DartEntry.PARSED_UNIT, CacheState.FLUSHED);
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource, unit);
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.RESOLUTION_ERRORS, librarySource, errors);
|
| + if (source == librarySource) {
|
| + _recordElementData(
|
| + dartEntry, library.libraryElement, librarySource, htmlSource);
|
| + }
|
| + _cache.storedAst(source);
|
| + } else {
|
| + dartEntry.recordResolutionErrorInLibrary(
|
| + librarySource, thrownException);
|
| + }
|
| + if (source != librarySource) {
|
| + _workManager.add(source, SourcePriority.PRIORITY_PART);
|
| + }
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + notice.resolvedDartUnit = unit;
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + }
|
| + }
|
| + }
|
| + if (thrownException != null) {
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + return unitEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry recordResolveDartLibraryTaskResults(ResolveDartLibraryTask task) {
|
| + LibraryResolver resolver = task.libraryResolver;
|
| + CaughtException thrownException = task.exception;
|
| + Source unitSource = task.unitSource;
|
| + DartEntry unitEntry = _getReadableDartEntry(unitSource);
|
| + if (resolver != null) {
|
| + //
|
| + // The resolver should only be null if an exception was thrown before (or
|
| + // while) it was being created.
|
| + //
|
| + Set<Library> resolvedLibraries = resolver.resolvedLibraries;
|
| + if (resolvedLibraries == null) {
|
| + //
|
| + // The resolved libraries should only be null if an exception was thrown
|
| + // during resolution.
|
| + //
|
| + if (thrownException == null) {
|
| + String message = "In recordResolveDartLibraryTaskResults, "
|
| + "resolvedLibraries was null and there was no thrown exception";
|
| + unitEntry.recordResolutionError(
|
| + new CaughtException(new AnalysisException(message), null));
|
| + } else {
|
| + unitEntry.recordResolutionError(thrownException);
|
| + }
|
| + _removeFromCache(unitSource);
|
| + if (thrownException != null) {
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + return unitEntry;
|
| + }
|
| + Source htmlSource = sourceFactory.forUri(DartSdk.DART_HTML);
|
| + RecordingErrorListener errorListener = resolver.errorListener;
|
| + for (Library library in resolvedLibraries) {
|
| + Source librarySource = library.librarySource;
|
| + for (Source source in library.compilationUnitSources) {
|
| + CompilationUnit unit = library.getAST(source);
|
| + List<AnalysisError> errors = errorListener.getErrorsForSource(source);
|
| + LineInfo lineInfo = getLineInfo(source);
|
| + DartEntry dartEntry = _cache.get(source);
|
| + if (thrownException == null) {
|
| + dartEntry.setValue(SourceEntry.LINE_INFO, lineInfo);
|
| + dartEntry.setState(DartEntry.PARSED_UNIT, CacheState.FLUSHED);
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource, unit);
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.RESOLUTION_ERRORS, librarySource, errors);
|
| + if (source == librarySource) {
|
| + _recordElementData(
|
| + dartEntry, library.libraryElement, librarySource, htmlSource);
|
| + }
|
| + _cache.storedAst(source);
|
| + } else {
|
| + dartEntry.recordResolutionErrorInLibrary(
|
| + librarySource, thrownException);
|
| + _removeFromCache(source);
|
| + }
|
| + if (source != librarySource) {
|
| + _workManager.add(source, SourcePriority.PRIORITY_PART);
|
| + }
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + notice.resolvedDartUnit = unit;
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + }
|
| + }
|
| + }
|
| + if (thrownException != null) {
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + return unitEntry;
|
| + }
|
| +
|
| + @override
|
| + void removeListener(AnalysisListener listener) {
|
| + _listeners.remove(listener);
|
| + }
|
| +
|
| + @override
|
| + CompilationUnit resolveCompilationUnit(
|
| + Source unitSource, LibraryElement library) {
|
| + if (library == null) {
|
| + return null;
|
| + }
|
| + return resolveCompilationUnit2(unitSource, library.source);
|
| + }
|
| +
|
| + @override
|
| + CompilationUnit resolveCompilationUnit2(
|
| + Source unitSource, Source librarySource) =>
|
| + _getDartResolutionData2(
|
| + unitSource, librarySource, DartEntry.RESOLVED_UNIT, null);
|
| +
|
| + @override
|
| + @deprecated
|
| + ht.HtmlUnit resolveHtmlUnit(Source htmlSource) {
|
| + computeHtmlElement(htmlSource);
|
| + return parseHtmlUnit(htmlSource);
|
| + }
|
| +
|
| + @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 setContents(Source source, String contents) {
|
| + _contentsChanged(source, contents, true);
|
| + }
|
| +
|
| + @override
|
| + bool shouldErrorsBeAnalyzed(Source source, Object entry) {
|
| + DartEntry dartEntry = entry;
|
| + if (source.isInSystemLibrary) {
|
| + return _generateSdkErrors;
|
| + } else if (!dartEntry.explicitlyAdded) {
|
| + return _generateImplicitErrors;
|
| + } else {
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + @override
|
| + void test_flushAstStructures(Source source) {
|
| + DartEntry dartEntry = getReadableSourceEntryOrNull(source);
|
| + dartEntry.flushAstStructures();
|
| + }
|
| +
|
| + @override
|
| + bool validateCacheConsistency() {
|
| + int consistencyCheckStart = JavaSystem.nanoTime();
|
| + List<Source> changedSources = new List<Source>();
|
| + List<Source> missingSources = new List<Source>();
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + Source source = iterator.key;
|
| + SourceEntry sourceEntry = iterator.value;
|
| + int sourceTime = getModificationStamp(source);
|
| + if (sourceTime != sourceEntry.modificationTime) {
|
| + changedSources.add(source);
|
| + }
|
| + if (sourceEntry.exception != null) {
|
| + if (!exists(source)) {
|
| + missingSources.add(source);
|
| + }
|
| + }
|
| + }
|
| + int count = changedSources.length;
|
| + for (int i = 0; i < count; i++) {
|
| + _sourceChanged(changedSources[i]);
|
| + }
|
| + int removalCount = 0;
|
| + for (Source source in missingSources) {
|
| + if (getLibrariesContaining(source).isEmpty &&
|
| + getLibrariesDependingOn(source).isEmpty) {
|
| + _removeFromCache(source);
|
| + removalCount++;
|
| + }
|
| + }
|
| + int consistencyCheckEnd = JavaSystem.nanoTime();
|
| + if (changedSources.length > 0 || missingSources.length > 0) {
|
| + StringBuffer buffer = new StringBuffer();
|
| + buffer.write("Consistency check took ");
|
| + buffer.write((consistencyCheckEnd - consistencyCheckStart) / 1000000.0);
|
| + buffer.writeln(" ms and found");
|
| + buffer.write(" ");
|
| + buffer.write(changedSources.length);
|
| + buffer.writeln(" inconsistent entries");
|
| + buffer.write(" ");
|
| + buffer.write(missingSources.length);
|
| + buffer.write(" missing sources (");
|
| + buffer.write(removalCount);
|
| + buffer.writeln(" removed");
|
| + for (Source source in missingSources) {
|
| + buffer.write(" ");
|
| + buffer.writeln(source.fullName);
|
| + }
|
| + _logInformation(buffer.toString());
|
| + }
|
| + return changedSources.length > 0;
|
| + }
|
| +
|
| + @deprecated
|
| + @override
|
| + void visitCacheItems(void callback(Source source, SourceEntry dartEntry,
|
| + DataDescriptor rowDesc, CacheState state)) {
|
| + bool hintsEnabled = _options.hint;
|
| + bool lintsEnabled = _options.lint;
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + Source source = iterator.key;
|
| + SourceEntry sourceEntry = iterator.value;
|
| + for (DataDescriptor descriptor in sourceEntry.descriptors) {
|
| + if (descriptor == DartEntry.SOURCE_KIND) {
|
| + // The source kind is always valid, so the state isn't interesting.
|
| + continue;
|
| + } else if (descriptor == DartEntry.CONTAINING_LIBRARIES) {
|
| + // The list of containing libraries is always valid, so the state
|
| + // isn't interesting.
|
| + continue;
|
| + } else if (descriptor == DartEntry.PUBLIC_NAMESPACE) {
|
| + // The public namespace isn't computed by performAnalysisTask()
|
| + // and therefore isn't interesting.
|
| + continue;
|
| + } else if (descriptor == HtmlEntry.HINTS) {
|
| + // We are not currently recording any hints related to HTML.
|
| + continue;
|
| + }
|
| + callback(
|
| + source, sourceEntry, descriptor, sourceEntry.getState(descriptor));
|
| + }
|
| + if (sourceEntry is DartEntry) {
|
| + // get library-specific values
|
| + List<Source> librarySources = getLibrariesContaining(source);
|
| + for (Source librarySource in librarySources) {
|
| + for (DataDescriptor descriptor in sourceEntry.libraryDescriptors) {
|
| + if (descriptor == DartEntry.BUILT_ELEMENT ||
|
| + descriptor == DartEntry.BUILT_UNIT) {
|
| + // These values are not currently being computed, so their state
|
| + // is not interesting.
|
| + continue;
|
| + } else if (!sourceEntry.explicitlyAdded &&
|
| + !_generateImplicitErrors &&
|
| + (descriptor == DartEntry.VERIFICATION_ERRORS ||
|
| + descriptor == DartEntry.HINTS ||
|
| + descriptor == DartEntry.LINTS)) {
|
| + continue;
|
| + } else if (source.isInSystemLibrary &&
|
| + !_generateSdkErrors &&
|
| + (descriptor == DartEntry.VERIFICATION_ERRORS ||
|
| + descriptor == DartEntry.HINTS ||
|
| + descriptor == DartEntry.LINTS)) {
|
| + continue;
|
| + } else if (!hintsEnabled && descriptor == DartEntry.HINTS) {
|
| + continue;
|
| + } else if (!lintsEnabled && descriptor == DartEntry.LINTS) {
|
| + continue;
|
| + }
|
| + callback(librarySource, sourceEntry, descriptor,
|
| + sourceEntry.getStateInLibrary(descriptor, librarySource));
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + @override
|
| + void visitContentCache(ContentCacheVisitor visitor) {
|
| + _contentCache.accept(visitor);
|
| + }
|
| +
|
| + /**
|
| + * Record that we have accessed the AST structure associated with the given
|
| + * [source]. At the moment, there is no differentiation between the parsed and
|
| + * resolved forms of the AST.
|
| + */
|
| + void _accessedAst(Source source) {
|
| + _cache.accessedAst(source);
|
| + }
|
| +
|
| + /**
|
| + * Add all of the sources contained in the given source [container] to the
|
| + * given list of [sources].
|
| + */
|
| + void _addSourcesInContainer(List<Source> sources, SourceContainer container) {
|
| + MapIterator<Source, SourceEntry> iterator = _cache.iterator();
|
| + while (iterator.moveNext()) {
|
| + Source source = iterator.key;
|
| + if (container.contains(source)) {
|
| + sources.add(source);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given the [unitSource] of a Dart file and the [librarySource] of the
|
| + * library that contains it, return a cache entry in which the state of the
|
| + * data represented by the given [descriptor] is either [CacheState.VALID] or
|
| + * [CacheState.ERROR]. This method assumes that the data can be produced by
|
| + * generating hints for the library if the data is not already cached. The
|
| + * [dartEntry] is the cache entry associated with the Dart file.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be parsed.
|
| + */
|
| + DartEntry _cacheDartHintData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + //
|
| + // Check to see whether we already have the information being requested.
|
| + //
|
| + CacheState state = dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + 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 libraryEntry = _getReadableDartEntry(librarySource);
|
| + libraryEntry = _cacheDartResolutionData(
|
| + librarySource, librarySource, libraryEntry, DartEntry.ELEMENT);
|
| + LibraryElement libraryElement = libraryEntry.getValue(DartEntry.ELEMENT);
|
| + CompilationUnitElement definingUnit =
|
| + libraryElement.definingCompilationUnit;
|
| + List<CompilationUnitElement> parts = libraryElement.parts;
|
| + List<TimestampedData<CompilationUnit>> units =
|
| + new List<TimestampedData<CompilationUnit>>(parts.length + 1);
|
| + units[0] = _getResolvedUnit(definingUnit, librarySource);
|
| + if (units[0] == null) {
|
| + Source source = definingUnit.source;
|
| + units[0] = new TimestampedData<CompilationUnit>(
|
| + getModificationStamp(source),
|
| + resolveCompilationUnit(source, libraryElement));
|
| + }
|
| + for (int i = 0; i < parts.length; i++) {
|
| + units[i + 1] = _getResolvedUnit(parts[i], librarySource);
|
| + if (units[i + 1] == null) {
|
| + Source source = parts[i].source;
|
| + units[i + 1] = new TimestampedData<CompilationUnit>(
|
| + getModificationStamp(source),
|
| + resolveCompilationUnit(source, libraryElement));
|
| + }
|
| + }
|
| + dartEntry = new GenerateDartHintsTask(
|
| + this, units, getLibraryElement(librarySource))
|
| + .perform(_resultRecorder) as DartEntry;
|
| + state = dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + }
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return a
|
| + * cache entry in which the state of the data represented by the given
|
| + * descriptor is either [CacheState.VALID] or [CacheState.ERROR]. This method
|
| + * assumes that the data can be produced by generating lints for the library
|
| + * if the data is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + DartEntry _cacheDartLintData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + //
|
| + // Check to see whether we already have the information being requested.
|
| + //
|
| + CacheState state = dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + 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 libraryEntry = _getReadableDartEntry(librarySource);
|
| + libraryEntry = _cacheDartResolutionData(
|
| + librarySource, librarySource, libraryEntry, DartEntry.ELEMENT);
|
| + LibraryElement libraryElement = libraryEntry.getValue(DartEntry.ELEMENT);
|
| + CompilationUnitElement definingUnit =
|
| + libraryElement.definingCompilationUnit;
|
| + List<CompilationUnitElement> parts = libraryElement.parts;
|
| + List<TimestampedData<CompilationUnit>> units =
|
| + new List<TimestampedData<CompilationUnit>>(parts.length + 1);
|
| + units[0] = _getResolvedUnit(definingUnit, librarySource);
|
| + if (units[0] == null) {
|
| + Source source = definingUnit.source;
|
| + units[0] = new TimestampedData<CompilationUnit>(
|
| + getModificationStamp(source),
|
| + resolveCompilationUnit(source, libraryElement));
|
| + }
|
| + for (int i = 0; i < parts.length; i++) {
|
| + units[i + 1] = _getResolvedUnit(parts[i], librarySource);
|
| + if (units[i + 1] == null) {
|
| + Source source = parts[i].source;
|
| + units[i + 1] = new TimestampedData<CompilationUnit>(
|
| + getModificationStamp(source),
|
| + resolveCompilationUnit(source, libraryElement));
|
| + }
|
| + }
|
| + //TODO(pquitslund): revisit if we need all units or whether one will do
|
| + dartEntry = new GenerateDartLintsTask(
|
| + this, units, getLibraryElement(librarySource))
|
| + .perform(_resultRecorder) as DartEntry;
|
| + state = dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + }
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file, return a cache entry in which the state of
|
| + * the data represented by the given descriptor is either [CacheState.VALID]
|
| + * or [CacheState.ERROR]. This method assumes that the data can be produced by
|
| + * parsing the source if it is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + DartEntry _cacheDartParseData(
|
| + Source source, DartEntry dartEntry, DataDescriptor descriptor) {
|
| + if (identical(descriptor, DartEntry.PARSED_UNIT)) {
|
| + if (dartEntry.hasResolvableCompilationUnit) {
|
| + return dartEntry;
|
| + }
|
| + }
|
| + //
|
| + // 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.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
|
| + * cache entry in which the state of the data represented by the given
|
| + * descriptor is either [CacheState.VALID] or [CacheState.ERROR]. This method
|
| + * assumes that the data can be produced by resolving the source in the
|
| + * context of the library if it is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + DartEntry _cacheDartResolutionData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + //
|
| + // Check to see whether we already have the information being requested.
|
| + //
|
| + CacheState state = (identical(descriptor, DartEntry.ELEMENT))
|
| + ? dartEntry.getState(descriptor)
|
| + : dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + 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.
|
| + //
|
| + // TODO(brianwilkerson) As an optimization, if we already have the
|
| + // element model for the library we can use ResolveDartUnitTask to produce
|
| + // the resolved AST structure much faster.
|
| + dartEntry = new ResolveDartLibraryTask(this, unitSource, librarySource)
|
| + .perform(_resultRecorder) as DartEntry;
|
| + state = (identical(descriptor, DartEntry.ELEMENT))
|
| + ? dartEntry.getState(descriptor)
|
| + : dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + }
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file, return a cache entry in which the state of
|
| + * the data represented by the given descriptor is either [CacheState.VALID]
|
| + * or [CacheState.ERROR]. This method assumes that the data can be produced by
|
| + * scanning the source if it is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + DartEntry _cacheDartScanData(
|
| + Source source, DartEntry dartEntry, DataDescriptor descriptor) {
|
| + //
|
| + // 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 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));
|
| + }
|
| + state = dartEntry.getState(descriptor);
|
| + }
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return a
|
| + * cache entry in which the state of the data represented by the given
|
| + * descriptor is either [CacheState.VALID] or [CacheState.ERROR]. This method
|
| + * assumes that the data can be produced by verifying the source in the given
|
| + * library if the data is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + DartEntry _cacheDartVerificationData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + //
|
| + // Check to see whether we already have the information being requested.
|
| + //
|
| + CacheState state = dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + 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.
|
| + //
|
| + LibraryElement library = computeLibraryElement(librarySource);
|
| + CompilationUnit unit = resolveCompilationUnit(unitSource, library);
|
| + if (unit == null) {
|
| + throw new AnalysisException(
|
| + "Could not resolve compilation unit ${unitSource.fullName} in ${librarySource.fullName}");
|
| + }
|
| + dartEntry = new GenerateDartErrorsTask(this, unitSource, unit, library)
|
| + .perform(_resultRecorder) as DartEntry;
|
| + state = dartEntry.getStateInLibrary(descriptor, librarySource);
|
| + }
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for an HTML file, return a cache entry in which all of the
|
| + * data represented by the state of the given descriptors is either
|
| + * [CacheState.VALID] or [CacheState.ERROR]. This method assumes that the data
|
| + * can be produced by parsing the source if it is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + HtmlEntry _cacheHtmlParseData(
|
| + Source source, HtmlEntry htmlEntry, DataDescriptor descriptor) {
|
| + if (identical(descriptor, HtmlEntry.PARSED_UNIT)) {
|
| + ht.HtmlUnit unit = htmlEntry.anyParsedUnit;
|
| + if (unit != null) {
|
| + return htmlEntry;
|
| + }
|
| + }
|
| + //
|
| + // 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 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));
|
| + }
|
| + state = htmlEntry.getState(descriptor);
|
| + }
|
| + return htmlEntry;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for an HTML file, return a cache entry in which the state of
|
| + * the data represented by the given descriptor is either [CacheState.VALID]
|
| + * or [CacheState.ERROR]. This method assumes that the data can be produced by
|
| + * resolving the source if it is not already cached.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + HtmlEntry _cacheHtmlResolutionData(
|
| + Source source, HtmlEntry htmlEntry, DataDescriptor descriptor) {
|
| + //
|
| + // 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.
|
| + //
|
| + htmlEntry = _cacheHtmlParseData(source, htmlEntry, HtmlEntry.PARSED_UNIT);
|
| + htmlEntry = new ResolveHtmlTask(this, source, htmlEntry.modificationTime,
|
| + htmlEntry.getValue(HtmlEntry.PARSED_UNIT))
|
| + .perform(_resultRecorder) as HtmlEntry;
|
| + state = htmlEntry.getState(descriptor);
|
| + }
|
| + return htmlEntry;
|
| + }
|
| +
|
| + /**
|
| + * Remove the given [pendingFuture] from [_pendingFutureSources], since the
|
| + * client has indicated its computation is not needed anymore.
|
| + */
|
| + void _cancelFuture(PendingFuture pendingFuture) {
|
| + List<PendingFuture> pendingFutures =
|
| + _pendingFutureSources[pendingFuture.source];
|
| + if (pendingFutures != null) {
|
| + pendingFutures.remove(pendingFuture);
|
| + if (pendingFutures.isEmpty) {
|
| + _pendingFutureSources.remove(pendingFuture.source);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Compute the transitive closure of all libraries that depend on the given
|
| + * [library] by adding such libraries to the given collection of
|
| + * [librariesToInvalidate].
|
| + */
|
| + void _computeAllLibrariesDependingOn(
|
| + Source library, HashSet<Source> librariesToInvalidate) {
|
| + if (librariesToInvalidate.add(library)) {
|
| + for (Source dependentLibrary in getLibrariesDependingOn(library)) {
|
| + _computeAllLibrariesDependingOn(
|
| + dependentLibrary, librariesToInvalidate);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the priority that should be used when the source associated with
|
| + * the given [dartEntry] is added to the work manager.
|
| + */
|
| + SourcePriority _computePriority(DartEntry dartEntry) {
|
| + SourceKind kind = dartEntry.kind;
|
| + if (kind == SourceKind.LIBRARY) {
|
| + return SourcePriority.LIBRARY;
|
| + } else if (kind == SourceKind.PART) {
|
| + return SourcePriority.NORMAL_PART;
|
| + }
|
| + return SourcePriority.UNKNOWN;
|
| + }
|
| +
|
| + /**
|
| + * Given the encoded form of a source ([encoding]), use the source factory to
|
| + * reconstitute the original source.
|
| + */
|
| + Source _computeSourceFromEncoding(String encoding) =>
|
| + _sourceFactory.fromEncoding(encoding);
|
| +
|
| + /**
|
| + * Return `true` if the given list of [sources] contains the given
|
| + * [targetSource].
|
| + */
|
| + bool _contains(List<Source> sources, Source targetSource) {
|
| + for (Source source in sources) {
|
| + if (source == targetSource) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the given list of [sources] contains any of the given
|
| + * [targetSources].
|
| + */
|
| + bool _containsAny(List<Source> sources, List<Source> targetSources) {
|
| + for (Source targetSource in targetSources) {
|
| + if (_contains(sources, targetSource)) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + /**
|
| + * Set the contents of the given [source] to the given [contents] and mark the
|
| + * source as having changed. The additional [offset], [oldLength] and
|
| + * [newLength] information is used by the context to determine what reanalysis
|
| + * is necessary. The method [setChangedContents] triggers a source changed
|
| + * 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));
|
| + }
|
| + _sourceChanged(source);
|
| + changed = true;
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry != null) {
|
| + sourceEntry.modificationTime =
|
| + _contentCache.getModificationStamp(source);
|
| + sourceEntry.setValue(SourceEntry.CONTENT, contents);
|
| + }
|
| + }
|
| + } else if (originalContents != null) {
|
| + _incrementalAnalysisCache =
|
| + IncrementalAnalysisCache.clear(_incrementalAnalysisCache, source);
|
| + _sourceChanged(source);
|
| + changed = true;
|
| + }
|
| + return changed;
|
| + }
|
| +
|
| + /**
|
| + * Set the contents of the given [source] to the given [contents] and mark the
|
| + * source as having changed. This has the effect of overriding the default
|
| + * contents of the source. If the contents are `null` the override is removed
|
| + * so that the default contents will be returned. If [notify] is true, a
|
| + * source changed event is triggered.
|
| + */
|
| + void _contentsChanged(Source source, String contents, bool notify) {
|
| + String originalContents = _contentCache.setContents(source, contents);
|
| + handleContentsChanged(source, originalContents, contents, notify);
|
| + }
|
| +
|
| + /**
|
| + * Create a [GenerateDartErrorsTask] for the given [unitSource], marking the
|
| + * verification errors as being in-process. The compilation unit and the
|
| + * library can be the same if the compilation unit is the defining compilation
|
| + * unit of the library.
|
| + */
|
| + 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(
|
| + "Entry has VALID state for RESOLVED_UNIT but null value for ${unitSource.fullName} in ${librarySource.fullName}"),
|
| + null);
|
| + 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);
|
| + }
|
| +
|
| + /**
|
| + * Create a [GenerateDartHintsTask] for the given [source], marking the hints
|
| + * as being in-process.
|
| + */
|
| + AnalysisContextImpl_TaskData _createGenerateDartHintsTask(Source source,
|
| + DartEntry dartEntry, Source librarySource, DartEntry libraryEntry) {
|
| + if (libraryEntry.getState(DartEntry.ELEMENT) != CacheState.VALID) {
|
| + return _createResolveDartLibraryTask(librarySource, libraryEntry);
|
| + }
|
| + LibraryElement libraryElement = libraryEntry.getValue(DartEntry.ELEMENT);
|
| + CompilationUnitElement definingUnit =
|
| + libraryElement.definingCompilationUnit;
|
| + List<CompilationUnitElement> parts = libraryElement.parts;
|
| + List<TimestampedData<CompilationUnit>> units =
|
| + new List<TimestampedData<CompilationUnit>>(parts.length + 1);
|
| + units[0] = _getResolvedUnit(definingUnit, librarySource);
|
| + if (units[0] == null) {
|
| + // TODO(brianwilkerson) We should return a ResolveDartUnitTask
|
| + // (unless there are multiple ASTs that need to be resolved).
|
| + return _createResolveDartLibraryTask(librarySource, libraryEntry);
|
| + }
|
| + for (int i = 0; i < parts.length; i++) {
|
| + units[i + 1] = _getResolvedUnit(parts[i], librarySource);
|
| + if (units[i + 1] == null) {
|
| + // TODO(brianwilkerson) We should return a ResolveDartUnitTask
|
| + // (unless there are multiple ASTs that need to be resolved).
|
| + return _createResolveDartLibraryTask(librarySource, libraryEntry);
|
| + }
|
| + }
|
| + return new AnalysisContextImpl_TaskData(
|
| + new GenerateDartHintsTask(this, units, libraryElement), false);
|
| + }
|
| +
|
| + /**
|
| + * Create a [GenerateDartLintsTask] for the given [source], marking the lints
|
| + * as being in-process.
|
| + */
|
| + AnalysisContextImpl_TaskData _createGenerateDartLintsTask(Source source,
|
| + DartEntry dartEntry, Source librarySource, DartEntry libraryEntry) {
|
| + if (libraryEntry.getState(DartEntry.ELEMENT) != CacheState.VALID) {
|
| + return _createResolveDartLibraryTask(librarySource, libraryEntry);
|
| + }
|
| + LibraryElement libraryElement = libraryEntry.getValue(DartEntry.ELEMENT);
|
| + CompilationUnitElement definingUnit =
|
| + libraryElement.definingCompilationUnit;
|
| + List<CompilationUnitElement> parts = libraryElement.parts;
|
| + List<TimestampedData<CompilationUnit>> units =
|
| + new List<TimestampedData<CompilationUnit>>(parts.length + 1);
|
| + units[0] = _getResolvedUnit(definingUnit, librarySource);
|
| + if (units[0] == null) {
|
| + // TODO(brianwilkerson) We should return a ResolveDartUnitTask
|
| + // (unless there are multiple ASTs that need to be resolved).
|
| + return _createResolveDartLibraryTask(librarySource, libraryEntry);
|
| + }
|
| + for (int i = 0; i < parts.length; i++) {
|
| + units[i + 1] = _getResolvedUnit(parts[i], librarySource);
|
| + if (units[i + 1] == null) {
|
| + // TODO(brianwilkerson) We should return a ResolveDartUnitTask
|
| + // (unless there are multiple ASTs that need to be resolved).
|
| + return _createResolveDartLibraryTask(librarySource, libraryEntry);
|
| + }
|
| + }
|
| + //TODO(pquitslund): revisit if we need all units or whether one will do
|
| + return new AnalysisContextImpl_TaskData(
|
| + new GenerateDartLintsTask(this, units, libraryElement), false);
|
| + }
|
| +
|
| + /**
|
| + * Create a [GetContentTask] for the given [source], marking the content as
|
| + * being in-process.
|
| + */
|
| + AnalysisContextImpl_TaskData _createGetContentTask(
|
| + Source source, SourceEntry sourceEntry) {
|
| + return new AnalysisContextImpl_TaskData(
|
| + new GetContentTask(this, source), false);
|
| + }
|
| +
|
| + /**
|
| + * 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);
|
| + }
|
| +
|
| + /**
|
| + * 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);
|
| + }
|
| + String content = htmlEntry.getValue(SourceEntry.CONTENT);
|
| + htmlEntry.setState(SourceEntry.CONTENT, CacheState.FLUSHED);
|
| + return new AnalysisContextImpl_TaskData(
|
| + new ParseHtmlTask(this, source, content), false);
|
| + }
|
| +
|
| + /**
|
| + * Create a [ResolveDartLibraryTask] for the given [source], marking ? as
|
| + * being in-process.
|
| + */
|
| + AnalysisContextImpl_TaskData _createResolveDartLibraryTask(
|
| + Source source, DartEntry dartEntry) {
|
| + 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);
|
| + } 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);
|
| + }
|
| +
|
| + /**
|
| + * 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);
|
| + }
|
| + String content = dartEntry.getValue(SourceEntry.CONTENT);
|
| + dartEntry.setState(SourceEntry.CONTENT, CacheState.FLUSHED);
|
| + return new AnalysisContextImpl_TaskData(
|
| + new ScanDartTask(this, source, content), false);
|
| + }
|
| +
|
| + /**
|
| + * Create a source entry for the given [source]. Return the source entry that
|
| + * was created, or `null` if the source should not be tracked by this context.
|
| + */
|
| + SourceEntry _createSourceEntry(Source source, bool explicitlyAdded) {
|
| + String name = source.shortName;
|
| + if (AnalysisEngine.isHtmlFileName(name)) {
|
| + HtmlEntry htmlEntry = new HtmlEntry();
|
| + htmlEntry.modificationTime = getModificationStamp(source);
|
| + htmlEntry.explicitlyAdded = explicitlyAdded;
|
| + _cache.put(source, htmlEntry);
|
| + if (!explicitlyAdded) {
|
| + _implicitAnalysisEventsController
|
| + .add(new ImplicitAnalysisEvent(source, true));
|
| + }
|
| + return htmlEntry;
|
| + } else {
|
| + DartEntry dartEntry = new DartEntry();
|
| + dartEntry.modificationTime = getModificationStamp(source);
|
| + dartEntry.explicitlyAdded = explicitlyAdded;
|
| + _cache.put(source, dartEntry);
|
| + if (!explicitlyAdded) {
|
| + _implicitAnalysisEventsController
|
| + .add(new ImplicitAnalysisEvent(source, true));
|
| + }
|
| + return dartEntry;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return a list containing all of the change notices that are waiting to be
|
| + * returned. If there are no notices, then return either `null` or an empty
|
| + * list, depending on the value of [nullIfEmpty].
|
| + */
|
| + List<ChangeNotice> _getChangeNotices(bool nullIfEmpty) {
|
| + if (_pendingNotices.isEmpty) {
|
| + if (nullIfEmpty) {
|
| + return null;
|
| + }
|
| + return ChangeNoticeImpl.EMPTY_LIST;
|
| + }
|
| + List<ChangeNotice> notices = new List.from(_pendingNotices.values);
|
| + _pendingNotices.clear();
|
| + return notices;
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return the
|
| + * data represented by the given descriptor that is associated with that
|
| + * source. This method assumes that the data can be produced by generating
|
| + * hints for the library if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartHintData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + dartEntry =
|
| + _cacheDartHintData(unitSource, librarySource, dartEntry, descriptor);
|
| + if (identical(descriptor, DartEntry.ELEMENT)) {
|
| + return dartEntry.getValue(descriptor);
|
| + }
|
| + return dartEntry.getValueInLibrary(descriptor, librarySource);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return the
|
| + * data represented by the given descriptor that is associated with that
|
| + * source. This method assumes that the data can be produced by generating
|
| + * lints for the library if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartLintData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + dartEntry =
|
| + _cacheDartLintData(unitSource, librarySource, dartEntry, descriptor);
|
| + if (identical(descriptor, DartEntry.ELEMENT)) {
|
| + return dartEntry.getValue(descriptor);
|
| + }
|
| + return dartEntry.getValueInLibrary(descriptor, librarySource);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file, return the data represented by the given
|
| + * descriptor that is associated with that source. This method assumes that
|
| + * the data can be produced by parsing the source if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be parsed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartParseData(
|
| + Source source, DartEntry dartEntry, DataDescriptor descriptor) {
|
| + dartEntry = _cacheDartParseData(source, dartEntry, descriptor);
|
| + if (identical(descriptor, DartEntry.PARSED_UNIT)) {
|
| + _accessedAst(source);
|
| + return dartEntry.anyParsedCompilationUnit;
|
| + }
|
| + return dartEntry.getValue(descriptor);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file, return the data represented by the given
|
| + * descriptor that is associated with that source, or the given default value
|
| + * if the source is not a Dart file. This method assumes that the data can be
|
| + * produced by parsing the source if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be parsed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartParseData2(
|
| + Source source, DataDescriptor descriptor, Object defaultValue) {
|
| + DartEntry dartEntry = _getReadableDartEntry(source);
|
| + if (dartEntry == null) {
|
| + return defaultValue;
|
| + }
|
| + try {
|
| + return _getDartParseData(source, dartEntry, descriptor);
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not compute $descriptor",
|
| + new CaughtException(exception, stackTrace));
|
| + return defaultValue;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return the
|
| + * data represented by the given descriptor that is associated with that
|
| + * source. This method assumes that the data can be produced by resolving the
|
| + * source in the context of the library if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartResolutionData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + dartEntry = _cacheDartResolutionData(
|
| + unitSource, librarySource, dartEntry, descriptor);
|
| + if (identical(descriptor, DartEntry.ELEMENT)) {
|
| + return dartEntry.getValue(descriptor);
|
| + } else if (identical(descriptor, DartEntry.RESOLVED_UNIT)) {
|
| + _accessedAst(unitSource);
|
| + }
|
| + return dartEntry.getValueInLibrary(descriptor, librarySource);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return the
|
| + * data represented by the given descriptor that is associated with that
|
| + * source, or the given default value if the source is not a Dart file. This
|
| + * method assumes that the data can be produced by resolving the source in the
|
| + * context of the library if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartResolutionData2(Source unitSource, Source librarySource,
|
| + DataDescriptor descriptor, Object defaultValue) {
|
| + DartEntry dartEntry = _getReadableDartEntry(unitSource);
|
| + if (dartEntry == null) {
|
| + return defaultValue;
|
| + }
|
| + try {
|
| + return _getDartResolutionData(
|
| + unitSource, librarySource, dartEntry, descriptor);
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not compute $descriptor",
|
| + new CaughtException(exception, stackTrace));
|
| + return defaultValue;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file, return the data represented by the given
|
| + * descriptor that is associated with that source. This method assumes that
|
| + * the data can be produced by scanning the source if it is not already
|
| + * cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be scanned.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartScanData(
|
| + Source source, DartEntry dartEntry, DataDescriptor descriptor) {
|
| + dartEntry = _cacheDartScanData(source, dartEntry, descriptor);
|
| + return dartEntry.getValue(descriptor);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file, return the data represented by the given
|
| + * descriptor that is associated with that source, or the given default value
|
| + * if the source is not a Dart file. This method assumes that the data can be
|
| + * produced by scanning the source if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be scanned.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartScanData2(
|
| + Source source, DataDescriptor descriptor, Object defaultValue) {
|
| + DartEntry dartEntry = _getReadableDartEntry(source);
|
| + if (dartEntry == null) {
|
| + return defaultValue;
|
| + }
|
| + try {
|
| + return _getDartScanData(source, dartEntry, descriptor);
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not compute $descriptor",
|
| + new CaughtException(exception, stackTrace));
|
| + return defaultValue;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given a source for a Dart file and the library that contains it, return the
|
| + * data represented by the given descriptor that is associated with that
|
| + * source. This method assumes that the data can be produced by verifying the
|
| + * source within the given library if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getDartVerificationData(Source unitSource, Source librarySource,
|
| + DartEntry dartEntry, DataDescriptor descriptor) {
|
| + dartEntry = _cacheDartVerificationData(
|
| + unitSource, librarySource, dartEntry, descriptor);
|
| + return dartEntry.getValueInLibrary(descriptor, librarySource);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for an HTML file, return the data represented by the given
|
| + * descriptor that is associated with that source, or the given default value
|
| + * if the source is not an HTML file. This method assumes that the data can be
|
| + * produced by parsing the source if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be parsed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getHtmlParseData(
|
| + Source source, DataDescriptor descriptor, Object defaultValue) {
|
| + HtmlEntry htmlEntry = _getReadableHtmlEntry(source);
|
| + if (htmlEntry == null) {
|
| + return defaultValue;
|
| + }
|
| + htmlEntry = _cacheHtmlParseData(source, htmlEntry, descriptor);
|
| + if (identical(descriptor, HtmlEntry.PARSED_UNIT)) {
|
| + _accessedAst(source);
|
| + return htmlEntry.anyParsedUnit;
|
| + }
|
| + return htmlEntry.getValue(descriptor);
|
| + }
|
| +
|
| + /**
|
| + * Given a source for an HTML file, return the data represented by the given
|
| + * descriptor that is associated with that source, or the given default value
|
| + * if the source is not an HTML file. This method assumes that the data can be
|
| + * produced by resolving the source if it is not already cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getHtmlResolutionData(
|
| + Source source, DataDescriptor descriptor, Object defaultValue) {
|
| + HtmlEntry htmlEntry = _getReadableHtmlEntry(source);
|
| + if (htmlEntry == null) {
|
| + return defaultValue;
|
| + }
|
| + try {
|
| + return _getHtmlResolutionData2(source, htmlEntry, descriptor);
|
| + } on ObsoleteSourceAnalysisException catch (exception, stackTrace) {
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Could not compute $descriptor",
|
| + new CaughtException(exception, stackTrace));
|
| + return defaultValue;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given a source for an HTML file, return the data represented by the given
|
| + * descriptor that is associated with that source. This method assumes that
|
| + * the data can be produced by resolving the source if it is not already
|
| + * cached.
|
| + *
|
| + * Throws an [AnalysisException] if data could not be returned because the
|
| + * source could not be resolved.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment.
|
| + */
|
| + Object _getHtmlResolutionData2(
|
| + Source source, HtmlEntry htmlEntry, DataDescriptor descriptor) {
|
| + htmlEntry = _cacheHtmlResolutionData(source, htmlEntry, descriptor);
|
| + if (identical(descriptor, HtmlEntry.RESOLVED_UNIT)) {
|
| + _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,
|
| + 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);
|
| + }
|
| + CacheState contentState = sourceEntry.getState(SourceEntry.CONTENT);
|
| + if (contentState == CacheState.INVALID) {
|
| + return _createGetContentTask(source, sourceEntry);
|
| + } else if (contentState == CacheState.IN_PROCESS) {
|
| + // We are already in the process of getting the content.
|
| + // There's nothing else we can do with this source until that's complete.
|
| + return new AnalysisContextImpl_TaskData(null, true);
|
| + } else if (contentState == CacheState.ERROR) {
|
| + // We have done all of the analysis we can for this source because we
|
| + // cannot get its content.
|
| + return new AnalysisContextImpl_TaskData(null, false);
|
| + }
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + CacheState scanErrorsState = dartEntry.getState(DartEntry.SCAN_ERRORS);
|
| + if (scanErrorsState == CacheState.INVALID ||
|
| + (isPriority && scanErrorsState == CacheState.FLUSHED)) {
|
| + return _createScanDartTask(source, dartEntry);
|
| + }
|
| + CacheState parseErrorsState = dartEntry.getState(DartEntry.PARSE_ERRORS);
|
| + if (parseErrorsState == CacheState.INVALID ||
|
| + (isPriority && parseErrorsState == CacheState.FLUSHED)) {
|
| + return _createParseDartTask(source, dartEntry);
|
| + }
|
| + if (isPriority && parseErrorsState != CacheState.ERROR) {
|
| + if (!dartEntry.hasResolvableCompilationUnit) {
|
| + return _createParseDartTask(source, dartEntry);
|
| + }
|
| + }
|
| + SourceKind kind = dartEntry.getValue(DartEntry.SOURCE_KIND);
|
| + if (kind == SourceKind.UNKNOWN) {
|
| + return _createParseDartTask(source, dartEntry);
|
| + } else if (kind == SourceKind.LIBRARY) {
|
| + CacheState elementState = dartEntry.getState(DartEntry.ELEMENT);
|
| + if (elementState == CacheState.INVALID) {
|
| + return _createResolveDartLibraryTask(source, dartEntry);
|
| + }
|
| + }
|
| + List<Source> librariesContaining = dartEntry.containingLibraries;
|
| + for (Source librarySource in librariesContaining) {
|
| + SourceEntry librarySourceEntry = _cache.get(librarySource);
|
| + if (librarySourceEntry is DartEntry) {
|
| + DartEntry libraryEntry = librarySourceEntry;
|
| + CacheState elementState = libraryEntry.getState(DartEntry.ELEMENT);
|
| + if (elementState == CacheState.INVALID ||
|
| + (isPriority && elementState == CacheState.FLUSHED)) {
|
| +// return createResolveDartLibraryTask(librarySource, (DartEntry) libraryEntry);
|
| + return new AnalysisContextImpl_TaskData(
|
| + new ResolveDartLibraryTask(this, source, librarySource), false);
|
| + }
|
| + CacheState resolvedUnitState = dartEntry.getStateInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource);
|
| + if (resolvedUnitState == CacheState.INVALID ||
|
| + (isPriority && resolvedUnitState == CacheState.FLUSHED)) {
|
| + //
|
| + // The commented out lines below are an optimization that doesn't
|
| + // quite work yet. The problem is that if the source was not
|
| + // resolved because it wasn't part of any library, then there won't
|
| + // be any elements in the element model that we can use to resolve
|
| + // it.
|
| + //
|
| +// LibraryElement libraryElement = libraryEntry.getValue(DartEntry.ELEMENT);
|
| +// if (libraryElement != null) {
|
| +// return new ResolveDartUnitTask(this, source, libraryElement);
|
| +// }
|
| + // Possibly replace with:
|
| +// return createResolveDartLibraryTask(librarySource, (DartEntry) libraryEntry);
|
| + return new AnalysisContextImpl_TaskData(
|
| + new ResolveDartLibraryTask(this, source, librarySource), false);
|
| + }
|
| + if (shouldErrorsBeAnalyzed(source, dartEntry)) {
|
| + CacheState verificationErrorsState = dartEntry.getStateInLibrary(
|
| + DartEntry.VERIFICATION_ERRORS, librarySource);
|
| + if (verificationErrorsState == CacheState.INVALID ||
|
| + (isPriority && verificationErrorsState == CacheState.FLUSHED)) {
|
| + return _createGenerateDartErrorsTask(
|
| + source, dartEntry, librarySource, libraryEntry);
|
| + }
|
| + if (hintsEnabled) {
|
| + CacheState hintsState =
|
| + dartEntry.getStateInLibrary(DartEntry.HINTS, librarySource);
|
| + if (hintsState == CacheState.INVALID ||
|
| + (isPriority && hintsState == CacheState.FLUSHED)) {
|
| + return _createGenerateDartHintsTask(
|
| + source, dartEntry, librarySource, libraryEntry);
|
| + }
|
| + }
|
| + if (lintsEnabled) {
|
| + CacheState lintsState =
|
| + dartEntry.getStateInLibrary(DartEntry.LINTS, librarySource);
|
| + if (lintsState == CacheState.INVALID ||
|
| + (isPriority && lintsState == CacheState.FLUSHED)) {
|
| + return _createGenerateDartLintsTask(
|
| + source, dartEntry, librarySource, libraryEntry);
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + } else if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + CacheState parseErrorsState = htmlEntry.getState(HtmlEntry.PARSE_ERRORS);
|
| + if (parseErrorsState == CacheState.INVALID ||
|
| + (isPriority && parseErrorsState == CacheState.FLUSHED)) {
|
| + return _createParseHtmlTask(source, htmlEntry);
|
| + }
|
| + if (isPriority && parseErrorsState != CacheState.ERROR) {
|
| + ht.HtmlUnit parsedUnit = htmlEntry.anyParsedUnit;
|
| + if (parsedUnit == null) {
|
| + return _createParseHtmlTask(source, htmlEntry);
|
| + }
|
| + }
|
| + CacheState resolvedUnitState =
|
| + htmlEntry.getState(HtmlEntry.RESOLVED_UNIT);
|
| + if (resolvedUnitState == CacheState.INVALID ||
|
| + (isPriority && resolvedUnitState == CacheState.FLUSHED)) {
|
| + return _createResolveHtmlTask(source, htmlEntry);
|
| + }
|
| + }
|
| + return new AnalysisContextImpl_TaskData(null, false);
|
| + }
|
| +
|
| + /**
|
| + * Return the cache entry associated with the given [source], or `null` if the
|
| + * source is not a Dart file.
|
| + *
|
| + * @param source the source for which a cache entry is being sought
|
| + * @return the source cache entry associated with the given source
|
| + */
|
| + DartEntry _getReadableDartEntry(Source source) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry == null) {
|
| + sourceEntry = _createSourceEntry(source, false);
|
| + }
|
| + if (sourceEntry is DartEntry) {
|
| + return sourceEntry;
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Return the cache entry associated with the given [source], or `null` if the
|
| + * source is not an HTML file.
|
| + */
|
| + HtmlEntry _getReadableHtmlEntry(Source source) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry == null) {
|
| + sourceEntry = _createSourceEntry(source, false);
|
| + }
|
| + if (sourceEntry is HtmlEntry) {
|
| + return sourceEntry;
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Return the cache entry associated with the given [source], creating it if
|
| + * necessary.
|
| + */
|
| + SourceEntry _getReadableSourceEntry(Source source) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry == null) {
|
| + sourceEntry = _createSourceEntry(source, false);
|
| + }
|
| + return sourceEntry;
|
| + }
|
| +
|
| + /**
|
| + * Return a resolved compilation unit corresponding to the given [element] in
|
| + * 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,
|
| + 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,
|
| + 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);
|
| + if (parseErrorsState == CacheState.INVALID ||
|
| + (isPriority && parseErrorsState == CacheState.FLUSHED)) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + if (isPriority) {
|
| + if (!dartEntry.hasResolvableCompilationUnit) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + }
|
| + for (Source librarySource in getLibrariesContaining(source)) {
|
| + SourceEntry libraryEntry = _cache.get(librarySource);
|
| + if (libraryEntry is DartEntry) {
|
| + CacheState elementState = libraryEntry.getState(DartEntry.ELEMENT);
|
| + if (elementState == CacheState.INVALID ||
|
| + (isPriority && elementState == CacheState.FLUSHED)) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + CacheState resolvedUnitState = dartEntry.getStateInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource);
|
| + if (resolvedUnitState == CacheState.INVALID ||
|
| + (isPriority && resolvedUnitState == CacheState.FLUSHED)) {
|
| + LibraryElement libraryElement =
|
| + libraryEntry.getValue(DartEntry.ELEMENT);
|
| + if (libraryElement != null) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + }
|
| + if (shouldErrorsBeAnalyzed(source, dartEntry)) {
|
| + CacheState verificationErrorsState = dartEntry.getStateInLibrary(
|
| + DartEntry.VERIFICATION_ERRORS, librarySource);
|
| + if (verificationErrorsState == CacheState.INVALID ||
|
| + (isPriority && verificationErrorsState == CacheState.FLUSHED)) {
|
| + LibraryElement libraryElement =
|
| + libraryEntry.getValue(DartEntry.ELEMENT);
|
| + if (libraryElement != null) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + }
|
| + if (hintsEnabled) {
|
| + CacheState hintsState =
|
| + dartEntry.getStateInLibrary(DartEntry.HINTS, librarySource);
|
| + if (hintsState == CacheState.INVALID ||
|
| + (isPriority && hintsState == CacheState.FLUSHED)) {
|
| + LibraryElement libraryElement =
|
| + libraryEntry.getValue(DartEntry.ELEMENT);
|
| + if (libraryElement != null) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| + if (lintsEnabled) {
|
| + CacheState lintsState =
|
| + dartEntry.getStateInLibrary(DartEntry.LINTS, librarySource);
|
| + if (lintsState == CacheState.INVALID ||
|
| + (isPriority && lintsState == CacheState.FLUSHED)) {
|
| + LibraryElement libraryElement =
|
| + libraryEntry.getValue(DartEntry.ELEMENT);
|
| + if (libraryElement != null) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + } else if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + CacheState parsedUnitState = htmlEntry.getState(HtmlEntry.PARSED_UNIT);
|
| + if (parsedUnitState == CacheState.INVALID ||
|
| + (isPriority && parsedUnitState == CacheState.FLUSHED)) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + CacheState resolvedUnitState =
|
| + htmlEntry.getState(HtmlEntry.RESOLVED_UNIT);
|
| + if (resolvedUnitState == CacheState.INVALID ||
|
| + (isPriority && resolvedUnitState == CacheState.FLUSHED)) {
|
| + sources.add(source);
|
| + return;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * 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.
|
| + */
|
| + void _invalidateAllLocalResolutionInformation(bool invalidateUris) {
|
| + HashMap<Source, List<Source>> oldPartMap =
|
| + new HashMap<Source, List<Source>>();
|
| + MapIterator<Source, SourceEntry> iterator = _privatePartition.iterator();
|
| + while (iterator.moveNext()) {
|
| + Source source = iterator.key;
|
| + SourceEntry sourceEntry = iterator.value;
|
| + if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + htmlEntry.invalidateAllResolutionInformation(invalidateUris);
|
| + iterator.value = htmlEntry;
|
| + _workManager.add(source, SourcePriority.HTML);
|
| + } else if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + oldPartMap[source] = dartEntry.getValue(DartEntry.INCLUDED_PARTS);
|
| + dartEntry.invalidateAllResolutionInformation(invalidateUris);
|
| + iterator.value = dartEntry;
|
| + _workManager.add(source, _computePriority(dartEntry));
|
| + }
|
| + }
|
| + _removeFromPartsUsingMap(oldPartMap);
|
| + }
|
| +
|
| + /**
|
| + * In response to a change to at least one of the compilation units in the
|
| + * library defined by the given [librarySource], invalidate any results that
|
| + * are dependent on the result of resolving that library.
|
| + *
|
| + * <b>Note:</b> Any cache entries that were accessed before this method was
|
| + * invoked must be re-accessed after this method returns.
|
| + */
|
| + void _invalidateLibraryResolution(Source librarySource) {
|
| + // TODO(brianwilkerson) This could be optimized. There's no need to flush
|
| + // all of these entries if the public namespace hasn't changed, which will
|
| + // be a fairly common case. The question is whether we can afford the time
|
| + // to compute the namespace to look for differences.
|
| + DartEntry libraryEntry = _getReadableDartEntry(librarySource);
|
| + if (libraryEntry != null) {
|
| + List<Source> includedParts =
|
| + libraryEntry.getValue(DartEntry.INCLUDED_PARTS);
|
| + libraryEntry.invalidateAllResolutionInformation(false);
|
| + _workManager.add(librarySource, SourcePriority.LIBRARY);
|
| + for (Source partSource in includedParts) {
|
| + SourceEntry partEntry = _cache.get(partSource);
|
| + if (partEntry is DartEntry) {
|
| + partEntry.invalidateAllResolutionInformation(false);
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the given [library] is, or depends on, 'dart:html'. The
|
| + * [visitedLibraries] is a collection of the libraries that have been visited,
|
| + * used to prevent infinite recursion.
|
| + */
|
| + bool _isClient(LibraryElement library, Source htmlSource,
|
| + HashSet<LibraryElement> visitedLibraries) {
|
| + if (visitedLibraries.contains(library)) {
|
| + return false;
|
| + }
|
| + if (library.source == htmlSource) {
|
| + return true;
|
| + }
|
| + visitedLibraries.add(library);
|
| + for (LibraryElement imported in library.importedLibraries) {
|
| + if (_isClient(imported, htmlSource, visitedLibraries)) {
|
| + return true;
|
| + }
|
| + }
|
| + for (LibraryElement exported in library.exportedLibraries) {
|
| + if (_isClient(exported, htmlSource, visitedLibraries)) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + bool _isTooBigHtmlSourceEntry(Source source, SourceEntry sourceEntry) =>
|
| + false;
|
| +
|
| +// /**
|
| +// * Notify all of the analysis listeners that the given source is no longer included in the set of
|
| +// * sources that are being analyzed.
|
| +// *
|
| +// * @param source the source that is no longer being analyzed
|
| +// */
|
| +// void _notifyExcludedSource(Source source) {
|
| +// int count = _listeners.length;
|
| +// for (int i = 0; i < count; i++) {
|
| +// _listeners[i].excludedSource(this, source);
|
| +// }
|
| +// }
|
| +
|
| +// /**
|
| +// * Notify all of the analysis listeners that the given source is now included in the set of
|
| +// * sources that are being analyzed.
|
| +// *
|
| +// * @param source the source that is now being analyzed
|
| +// */
|
| +// void _notifyIncludedSource(Source source) {
|
| +// int count = _listeners.length;
|
| +// for (int i = 0; i < count; i++) {
|
| +// _listeners[i].includedSource(this, source);
|
| +// }
|
| +// }
|
| +
|
| +// /**
|
| +// * Notify all of the analysis listeners that the given Dart source was parsed.
|
| +// *
|
| +// * @param source the source that was parsed
|
| +// * @param unit the result of parsing the source
|
| +// */
|
| +// void _notifyParsedDart(Source source, CompilationUnit unit) {
|
| +// int count = _listeners.length;
|
| +// for (int i = 0; i < count; i++) {
|
| +// _listeners[i].parsedDart(this, source, unit);
|
| +// }
|
| +// }
|
| +
|
| +// /**
|
| +// * Notify all of the analysis listeners that the given HTML source was parsed.
|
| +// *
|
| +// * @param source the source that was parsed
|
| +// * @param unit the result of parsing the source
|
| +// */
|
| +// void _notifyParsedHtml(Source source, ht.HtmlUnit unit) {
|
| +// int count = _listeners.length;
|
| +// for (int i = 0; i < count; i++) {
|
| +// _listeners[i].parsedHtml(this, source, unit);
|
| +// }
|
| +// }
|
| +
|
| +// /**
|
| +// * Notify all of the analysis listeners that the given Dart source was resolved.
|
| +// *
|
| +// * @param source the source that was resolved
|
| +// * @param unit the result of resolving the source
|
| +// */
|
| +// void _notifyResolvedDart(Source source, CompilationUnit unit) {
|
| +// int count = _listeners.length;
|
| +// for (int i = 0; i < count; i++) {
|
| +// _listeners[i].resolvedDart(this, source, unit);
|
| +// }
|
| +// }
|
| +
|
| +// /**
|
| +// * Notify all of the analysis listeners that the given HTML source was resolved.
|
| +// *
|
| +// * @param source the source that was resolved
|
| +// * @param unit the result of resolving the source
|
| +// */
|
| +// void _notifyResolvedHtml(Source source, ht.HtmlUnit unit) {
|
| +// int count = _listeners.length;
|
| +// for (int i = 0; i < count; i++) {
|
| +// _listeners[i].resolvedHtml(this, source, unit);
|
| +// }
|
| +// }
|
| +
|
| + /**
|
| + * Log the given debugging [message].
|
| + */
|
| + void _logInformation(String message) {
|
| + AnalysisEngine.instance.logger.logInformation(message);
|
| + }
|
| +
|
| + /**
|
| + * Notify all of the analysis listeners that a task is about to be performed.
|
| + */
|
| + void _notifyAboutToPerformTask(String taskDescription) {
|
| + int count = _listeners.length;
|
| + for (int i = 0; i < count; i++) {
|
| + _listeners[i].aboutToPerformTask(this, taskDescription);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Notify all of the analysis listeners that the errors associated with the
|
| + * given [source] has been updated to the given [errors].
|
| + */
|
| + void _notifyErrors(
|
| + Source source, List<AnalysisError> errors, LineInfo lineInfo) {
|
| + int count = _listeners.length;
|
| + for (int i = 0; i < count; i++) {
|
| + _listeners[i].computedErrors(this, source, errors, lineInfo);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given that the given [source] (with the corresponding [sourceEntry]) has
|
| + * been invalidated, invalidate all of the libraries that depend on it.
|
| + */
|
| + void _propagateInvalidation(Source source, SourceEntry sourceEntry) {
|
| + if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + htmlEntry.modificationTime = getModificationStamp(source);
|
| + htmlEntry.invalidateAllInformation();
|
| + _cache.removedAst(source);
|
| + _workManager.add(source, SourcePriority.HTML);
|
| + } else if (sourceEntry is DartEntry) {
|
| + List<Source> containingLibraries = getLibrariesContaining(source);
|
| + List<Source> dependentLibraries = getLibrariesDependingOn(source);
|
| + HashSet<Source> librariesToInvalidate = new HashSet<Source>();
|
| + for (Source containingLibrary in containingLibraries) {
|
| + _computeAllLibrariesDependingOn(
|
| + containingLibrary, librariesToInvalidate);
|
| + }
|
| + for (Source dependentLibrary in dependentLibraries) {
|
| + _computeAllLibrariesDependingOn(
|
| + dependentLibrary, librariesToInvalidate);
|
| + }
|
| + for (Source library in librariesToInvalidate) {
|
| + _invalidateLibraryResolution(library);
|
| + }
|
| + DartEntry dartEntry = _cache.get(source);
|
| + _removeFromParts(source, dartEntry);
|
| + dartEntry.modificationTime = getModificationStamp(source);
|
| + dartEntry.invalidateAllInformation();
|
| + _cache.removedAst(source);
|
| + _workManager.add(source, SourcePriority.UNKNOWN);
|
| + }
|
| + // reset unit in the notification, it is out of date now
|
| + ChangeNoticeImpl notice = _pendingNotices[source];
|
| + if (notice != null) {
|
| + notice.resolvedDartUnit = null;
|
| + notice.resolvedHtmlUnit = null;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Given a [dartEntry] and a [library] element, record the library element and
|
| + * other information gleaned from the element in the cache entry.
|
| + */
|
| + void _recordElementData(DartEntry dartEntry, LibraryElement library,
|
| + Source librarySource, Source htmlSource) {
|
| + dartEntry.setValue(DartEntry.ELEMENT, library);
|
| + dartEntry.setValue(DartEntry.IS_LAUNCHABLE, library.entryPoint != null);
|
| + dartEntry.setValue(DartEntry.IS_CLIENT,
|
| + _isClient(library, htmlSource, new HashSet<LibraryElement>()));
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordGenerateDartErrorsTask(GenerateDartErrorsTask task) {
|
| + Source source = task.source;
|
| + DartEntry dartEntry = _cache.get(source);
|
| + Source librarySource = task.libraryElement.source;
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + dartEntry.recordVerificationErrorInLibrary(
|
| + librarySource, thrownException);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.VERIFICATION_ERRORS, librarySource, task.errors);
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + LineInfo lineInfo = dartEntry.getValue(SourceEntry.LINE_INFO);
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordGenerateDartHintsTask(GenerateDartHintsTask task) {
|
| + Source librarySource = task.libraryElement.source;
|
| + CaughtException thrownException = task.exception;
|
| + DartEntry libraryEntry = null;
|
| + HashMap<Source, List<AnalysisError>> hintMap = task.hintMap;
|
| + if (hintMap == null) {
|
| + // We don't have any information about which sources to mark as invalid
|
| + // other than the library source.
|
| + DartEntry libraryEntry = _cache.get(librarySource);
|
| + if (thrownException == null) {
|
| + String message = "GenerateDartHintsTask returned a null hint map "
|
| + "without throwing an exception: ${librarySource.fullName}";
|
| + thrownException =
|
| + new CaughtException(new AnalysisException(message), null);
|
| + }
|
| + libraryEntry.recordHintErrorInLibrary(librarySource, thrownException);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + hintMap.forEach((Source unitSource, List<AnalysisError> hints) {
|
| + DartEntry dartEntry = _cache.get(unitSource);
|
| + if (unitSource == librarySource) {
|
| + libraryEntry = dartEntry;
|
| + }
|
| + if (thrownException == null) {
|
| + dartEntry.setValueInLibrary(DartEntry.HINTS, librarySource, hints);
|
| + ChangeNoticeImpl notice = getNotice(unitSource);
|
| + LineInfo lineInfo = dartEntry.getValue(SourceEntry.LINE_INFO);
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + } else {
|
| + dartEntry.recordHintErrorInLibrary(librarySource, thrownException);
|
| + }
|
| + });
|
| + if (thrownException != null) {
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + return libraryEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordGenerateDartLintsTask(GenerateDartLintsTask task) {
|
| + Source librarySource = task.libraryElement.source;
|
| + CaughtException thrownException = task.exception;
|
| + DartEntry libraryEntry = null;
|
| + HashMap<Source, List<AnalysisError>> lintMap = task.lintMap;
|
| + if (lintMap == null) {
|
| + // We don't have any information about which sources to mark as invalid
|
| + // other than the library source.
|
| + DartEntry libraryEntry = _cache.get(librarySource);
|
| + if (thrownException == null) {
|
| + String message = "GenerateDartLintsTask returned a null lint map "
|
| + "without throwing an exception: ${librarySource.fullName}";
|
| + thrownException =
|
| + new CaughtException(new AnalysisException(message), null);
|
| + }
|
| + libraryEntry.recordLintErrorInLibrary(librarySource, thrownException);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + lintMap.forEach((Source unitSource, List<AnalysisError> lints) {
|
| + DartEntry dartEntry = _cache.get(unitSource);
|
| + if (unitSource == librarySource) {
|
| + libraryEntry = dartEntry;
|
| + }
|
| + if (thrownException == null) {
|
| + dartEntry.setValueInLibrary(DartEntry.LINTS, librarySource, lints);
|
| + ChangeNoticeImpl notice = getNotice(unitSource);
|
| + LineInfo lineInfo = dartEntry.getValue(SourceEntry.LINE_INFO);
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + } else {
|
| + dartEntry.recordLintErrorInLibrary(librarySource, thrownException);
|
| + }
|
| + });
|
| + if (thrownException != null) {
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + return libraryEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + SourceEntry _recordGetContentsTask(GetContentTask task) {
|
| + if (!task.isComplete) {
|
| + return null;
|
| + }
|
| + Source source = task.source;
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + sourceEntry.recordContentError(thrownException);
|
| + {
|
| + sourceEntry.setValue(SourceEntry.CONTENT_ERRORS, task.errors);
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + notice.setErrors(sourceEntry.allErrors, null);
|
| + }
|
| + _workManager.remove(source);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + sourceEntry.modificationTime = task.modificationTime;
|
| + sourceEntry.setValue(SourceEntry.CONTENT, task.content);
|
| + return sourceEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordIncrementalAnalysisTaskResults(
|
| + IncrementalAnalysisTask task) {
|
| + CompilationUnit unit = task.compilationUnit;
|
| + if (unit != null) {
|
| + ChangeNoticeImpl notice = getNotice(task.source);
|
| + notice.resolvedDartUnit = unit;
|
| + _incrementalAnalysisCache =
|
| + IncrementalAnalysisCache.cacheResult(task.cache, unit);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordParseDartTaskResults(ParseDartTask task) {
|
| + Source source = task.source;
|
| + DartEntry dartEntry = _cache.get(source);
|
| + _removeFromParts(source, dartEntry);
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + _removeFromParts(source, dartEntry);
|
| + dartEntry.recordParseError(thrownException);
|
| + _cache.removedAst(source);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + if (task.hasNonPartOfDirective) {
|
| + dartEntry.setValue(DartEntry.SOURCE_KIND, SourceKind.LIBRARY);
|
| + dartEntry.containingLibrary = source;
|
| + _workManager.add(source, SourcePriority.LIBRARY);
|
| + } else if (task.hasPartOfDirective) {
|
| + dartEntry.setValue(DartEntry.SOURCE_KIND, SourceKind.PART);
|
| + dartEntry.removeContainingLibrary(source);
|
| + _workManager.add(source, SourcePriority.NORMAL_PART);
|
| + } else {
|
| + // The file contains no directives.
|
| + List<Source> containingLibraries = dartEntry.containingLibraries;
|
| + if (containingLibraries.length > 1 ||
|
| + (containingLibraries.length == 1 &&
|
| + containingLibraries[0] != source)) {
|
| + dartEntry.setValue(DartEntry.SOURCE_KIND, SourceKind.PART);
|
| + dartEntry.removeContainingLibrary(source);
|
| + _workManager.add(source, SourcePriority.NORMAL_PART);
|
| + } else {
|
| + dartEntry.setValue(DartEntry.SOURCE_KIND, SourceKind.LIBRARY);
|
| + dartEntry.containingLibrary = source;
|
| + _workManager.add(source, SourcePriority.LIBRARY);
|
| + }
|
| + }
|
| + List<Source> newParts = task.includedSources;
|
| + for (int i = 0; i < newParts.length; i++) {
|
| + Source partSource = newParts[i];
|
| + DartEntry partEntry = _getReadableDartEntry(partSource);
|
| + if (partEntry != null && !identical(partEntry, dartEntry)) {
|
| + // TODO(brianwilkerson) Change the kind of the "part" if it was marked
|
| + // as a library and it has no directives.
|
| + partEntry.addContainingLibrary(source);
|
| + }
|
| + }
|
| + dartEntry.setValue(DartEntry.PARSED_UNIT, task.compilationUnit);
|
| + dartEntry.setValue(DartEntry.PARSE_ERRORS, task.errors);
|
| + dartEntry.setValue(DartEntry.EXPORTED_LIBRARIES, task.exportedSources);
|
| + dartEntry.setValue(DartEntry.IMPORTED_LIBRARIES, task.importedSources);
|
| + dartEntry.setValue(DartEntry.INCLUDED_PARTS, newParts);
|
| + _cache.storedAst(source);
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + if (notice.resolvedDartUnit == null) {
|
| + notice.parsedDartUnit = task.compilationUnit;
|
| + }
|
| + notice.setErrors(dartEntry.allErrors, task.lineInfo);
|
| + // Verify that the incrementally parsed and resolved unit in the incremental
|
| + // cache is structurally equivalent to the fully parsed unit
|
| + _incrementalAnalysisCache = IncrementalAnalysisCache.verifyStructure(
|
| + _incrementalAnalysisCache, source, task.compilationUnit);
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + HtmlEntry _recordParseHtmlTaskResults(ParseHtmlTask task) {
|
| + Source source = task.source;
|
| + HtmlEntry htmlEntry = _cache.get(source);
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + htmlEntry.recordParseError(thrownException);
|
| + _cache.removedAst(source);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + LineInfo lineInfo = task.lineInfo;
|
| + htmlEntry.setValue(SourceEntry.LINE_INFO, lineInfo);
|
| + htmlEntry.setValue(HtmlEntry.PARSED_UNIT, task.htmlUnit);
|
| + htmlEntry.setValue(HtmlEntry.PARSE_ERRORS, task.errors);
|
| + htmlEntry.setValue(
|
| + HtmlEntry.REFERENCED_LIBRARIES, task.referencedLibraries);
|
| + _cache.storedAst(source);
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + notice.setErrors(htmlEntry.allErrors, lineInfo);
|
| + return htmlEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordResolveDartUnitTaskResults(ResolveDartUnitTask task) {
|
| + Source unitSource = task.source;
|
| + DartEntry dartEntry = _cache.get(unitSource);
|
| + Source librarySource = task.librarySource;
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + dartEntry.recordResolutionErrorInLibrary(librarySource, thrownException);
|
| + _cache.removedAst(unitSource);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + dartEntry.setValueInLibrary(
|
| + DartEntry.RESOLVED_UNIT, librarySource, task.resolvedUnit);
|
| + _cache.storedAst(unitSource);
|
| + return dartEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + HtmlEntry _recordResolveHtmlTaskResults(ResolveHtmlTask task) {
|
| + Source source = task.source;
|
| + HtmlEntry htmlEntry = _cache.get(source);
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + htmlEntry.recordResolutionError(thrownException);
|
| + _cache.removedAst(source);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + htmlEntry.setState(HtmlEntry.PARSED_UNIT, CacheState.FLUSHED);
|
| + htmlEntry.setValue(HtmlEntry.RESOLVED_UNIT, task.resolvedUnit);
|
| + htmlEntry.setValue(HtmlEntry.ELEMENT, task.element);
|
| + htmlEntry.setValue(HtmlEntry.RESOLUTION_ERRORS, task.resolutionErrors);
|
| + _cache.storedAst(source);
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + notice.resolvedHtmlUnit = task.resolvedUnit;
|
| + LineInfo lineInfo = htmlEntry.getValue(SourceEntry.LINE_INFO);
|
| + notice.setErrors(htmlEntry.allErrors, lineInfo);
|
| + return htmlEntry;
|
| + }
|
| +
|
| + /**
|
| + * Record the results produced by performing a [task] and return the cache
|
| + * entry associated with the results.
|
| + */
|
| + DartEntry _recordScanDartTaskResults(ScanDartTask task) {
|
| + Source source = task.source;
|
| + DartEntry dartEntry = _cache.get(source);
|
| + CaughtException thrownException = task.exception;
|
| + if (thrownException != null) {
|
| + _removeFromParts(source, dartEntry);
|
| + dartEntry.recordScanError(thrownException);
|
| + _cache.removedAst(source);
|
| + throw new AnalysisException('<rethrow>', thrownException);
|
| + }
|
| + LineInfo lineInfo = task.lineInfo;
|
| + dartEntry.setValue(SourceEntry.LINE_INFO, lineInfo);
|
| + dartEntry.setValue(DartEntry.TOKEN_STREAM, task.tokenStream);
|
| + dartEntry.setValue(DartEntry.SCAN_ERRORS, task.errors);
|
| + _cache.storedAst(source);
|
| + ChangeNoticeImpl notice = getNotice(source);
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + return dartEntry;
|
| + }
|
| +
|
| + void _removeFromCache(Source source) {
|
| + SourceEntry entry = _cache.remove(source);
|
| + if (entry != null && !entry.explicitlyAdded) {
|
| + _implicitAnalysisEventsController
|
| + .add(new ImplicitAnalysisEvent(source, false));
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Remove the given [librarySource] from the list of containing libraries for
|
| + * all of the parts referenced by the given [dartEntry].
|
| + */
|
| + void _removeFromParts(Source librarySource, DartEntry dartEntry) {
|
| + List<Source> oldParts = dartEntry.getValue(DartEntry.INCLUDED_PARTS);
|
| + for (int i = 0; i < oldParts.length; i++) {
|
| + Source partSource = oldParts[i];
|
| + DartEntry partEntry = _getReadableDartEntry(partSource);
|
| + if (partEntry != null && !identical(partEntry, dartEntry)) {
|
| + partEntry.removeContainingLibrary(librarySource);
|
| + if (partEntry.containingLibraries.length == 0 && !exists(partSource)) {
|
| + _removeFromCache(partSource);
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Remove the given libraries that are keys in the given map from the list of
|
| + * containing libraries for each of the parts in the corresponding value.
|
| + */
|
| + void _removeFromPartsUsingMap(HashMap<Source, List<Source>> oldPartMap) {
|
| + oldPartMap.forEach((Source librarySource, List<Source> oldParts) {
|
| + for (int i = 0; i < oldParts.length; i++) {
|
| + Source partSource = oldParts[i];
|
| + if (partSource != librarySource) {
|
| + DartEntry partEntry = _getReadableDartEntry(partSource);
|
| + if (partEntry != null) {
|
| + partEntry.removeContainingLibrary(librarySource);
|
| + if (partEntry.containingLibraries.length == 0 &&
|
| + !exists(partSource)) {
|
| + _removeFromCache(partSource);
|
| + }
|
| + }
|
| + }
|
| + }
|
| + });
|
| + }
|
| +
|
| + /**
|
| + * Remove the given [source] from the priority order if it is in the list.
|
| + */
|
| + void _removeFromPriorityOrder(Source source) {
|
| + int count = _priorityOrder.length;
|
| + List<Source> newOrder = new List<Source>();
|
| + for (int i = 0; i < count; i++) {
|
| + if (_priorityOrder[i] != source) {
|
| + newOrder.add(_priorityOrder[i]);
|
| + }
|
| + }
|
| + if (newOrder.length < count) {
|
| + analysisPriorityOrder = newOrder;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Create an entry for the newly added [source] and invalidate any sources
|
| + * that referenced the source before it existed.
|
| + */
|
| + void _sourceAvailable(Source source) {
|
| + // TODO(brianwilkerson) This method needs to check whether the source was
|
| + // previously being implicitly analyzed. If so, the cache entry needs to be
|
| + // update to reflect the new status and an event needs to be generated to
|
| + // inform clients that it is no longer being implicitly analyzed.
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry == null) {
|
| + sourceEntry = _createSourceEntry(source, true);
|
| + } else {
|
| + _propagateInvalidation(source, sourceEntry);
|
| + sourceEntry = _cache.get(source);
|
| + }
|
| + if (sourceEntry is HtmlEntry) {
|
| + _workManager.add(source, SourcePriority.HTML);
|
| + } else if (sourceEntry is DartEntry) {
|
| + _workManager.add(source, _computePriority(sourceEntry));
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Invalidate the [source] that was changed and any sources that referenced
|
| + * the source before it existed.
|
| + */
|
| + void _sourceChanged(Source source) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + // If the source is removed, we don't care about it.
|
| + if (sourceEntry == null) {
|
| + return;
|
| + }
|
| + // Check if the content of the source is the same as it was the last time.
|
| + String sourceContent = sourceEntry.getValue(SourceEntry.CONTENT);
|
| + if (sourceContent != null) {
|
| + sourceEntry.setState(SourceEntry.CONTENT, CacheState.FLUSHED);
|
| + try {
|
| + TimestampedData<String> fileContents = getContents(source);
|
| + if (fileContents.data == sourceContent) {
|
| + return;
|
| + }
|
| + } catch (e) {}
|
| + }
|
| + // We have to invalidate the cache.
|
| + _propagateInvalidation(source, sourceEntry);
|
| + }
|
| +
|
| + /**
|
| + * Record that the give [source] has been deleted.
|
| + */
|
| + void _sourceDeleted(Source source) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + htmlEntry.recordContentError(new CaughtException(
|
| + new AnalysisException("This source was marked as being deleted"),
|
| + null));
|
| + } else if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + HashSet<Source> libraries = new HashSet<Source>();
|
| + for (Source librarySource in getLibrariesContaining(source)) {
|
| + libraries.add(librarySource);
|
| + for (Source dependentLibrary
|
| + in getLibrariesDependingOn(librarySource)) {
|
| + libraries.add(dependentLibrary);
|
| + }
|
| + }
|
| + for (Source librarySource in libraries) {
|
| + _invalidateLibraryResolution(librarySource);
|
| + }
|
| + dartEntry.recordContentError(new CaughtException(
|
| + new AnalysisException("This source was marked as being deleted"),
|
| + null));
|
| + }
|
| + _workManager.remove(source);
|
| + _removeFromPriorityOrder(source);
|
| + }
|
| +
|
| + /**
|
| + * Record that the given [source] has been removed.
|
| + */
|
| + void _sourceRemoved(Source source) {
|
| + SourceEntry sourceEntry = _cache.get(source);
|
| + if (sourceEntry is HtmlEntry) {} else if (sourceEntry is DartEntry) {
|
| + HashSet<Source> libraries = new HashSet<Source>();
|
| + for (Source librarySource in getLibrariesContaining(source)) {
|
| + libraries.add(librarySource);
|
| + for (Source dependentLibrary
|
| + in getLibrariesDependingOn(librarySource)) {
|
| + libraries.add(dependentLibrary);
|
| + }
|
| + }
|
| + for (Source librarySource in libraries) {
|
| + _invalidateLibraryResolution(librarySource);
|
| + }
|
| + }
|
| + _removeFromCache(source);
|
| + _workManager.remove(source);
|
| + _removeFromPriorityOrder(source);
|
| + }
|
| +
|
| + /**
|
| + * TODO(scheglov) A hackish, limited incremental resolution implementation.
|
| + */
|
| + bool _tryPoorMansIncrementalResolution(Source unitSource, String newCode) {
|
| + return PerformanceStatistics.incrementalAnalysis.makeCurrentWhile(() {
|
| + incrementalResolutionValidation_lastUnitSource = null;
|
| + incrementalResolutionValidation_lastLibrarySource = null;
|
| + incrementalResolutionValidation_lastUnit = null;
|
| + // prepare the entry
|
| + DartEntry dartEntry = _cache.get(unitSource);
|
| + if (dartEntry == null) {
|
| + return false;
|
| + }
|
| + // prepare the (only) library source
|
| + List<Source> librarySources = getLibrariesContaining(unitSource);
|
| + if (librarySources.length != 1) {
|
| + return false;
|
| + }
|
| + Source librarySource = librarySources[0];
|
| + // prepare the library element
|
| + LibraryElement libraryElement = getLibraryElement(librarySource);
|
| + if (libraryElement == null) {
|
| + return false;
|
| + }
|
| + // 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);
|
| + bool success = resolver.resolve(newCode);
|
| + AnalysisEngine.instance.instrumentationService.logPerformance(
|
| + 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;
|
| + return false;
|
| + }
|
| + // prepare notice
|
| + {
|
| + LineInfo lineInfo = getLineInfo(unitSource);
|
| + ChangeNoticeImpl notice = getNotice(unitSource);
|
| + notice.resolvedDartUnit = oldUnit;
|
| + notice.setErrors(dartEntry.allErrors, lineInfo);
|
| + }
|
| + // OK
|
| + return true;
|
| + });
|
| + }
|
| +
|
| + void _validateLastIncrementalResolutionResult() {
|
| + if (incrementalResolutionValidation_lastUnitSource == null ||
|
| + incrementalResolutionValidation_lastLibrarySource == null ||
|
| + incrementalResolutionValidation_lastUnit == null) {
|
| + return;
|
| + }
|
| + CompilationUnit fullUnit = getResolvedCompilationUnit2(
|
| + incrementalResolutionValidation_lastUnitSource,
|
| + incrementalResolutionValidation_lastLibrarySource);
|
| + if (fullUnit != null) {
|
| + try {
|
| + assertSameResolution(
|
| + incrementalResolutionValidation_lastUnit, fullUnit);
|
| + } on IncrementalResolutionMismatch catch (mismatch, stack) {
|
| + String failure = mismatch.message;
|
| + String message =
|
| + 'Incremental resolution mismatch:\n$failure\nat\n$stack';
|
| + AnalysisEngine.instance.logger.logError(message);
|
| + }
|
| + }
|
| + incrementalResolutionValidation_lastUnitSource = null;
|
| + incrementalResolutionValidation_lastLibrarySource = null;
|
| + incrementalResolutionValidation_lastUnit = null;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An object used by an analysis context to record the results of a task.
|
| + */
|
| +class AnalysisContextImpl_AnalysisTaskResultRecorder
|
| + implements AnalysisTaskVisitor<SourceEntry> {
|
| + final AnalysisContextImpl AnalysisContextImpl_this;
|
| +
|
| + AnalysisContextImpl_AnalysisTaskResultRecorder(this.AnalysisContextImpl_this);
|
| +
|
| + @override
|
| + DartEntry visitGenerateDartErrorsTask(GenerateDartErrorsTask task) =>
|
| + AnalysisContextImpl_this._recordGenerateDartErrorsTask(task);
|
| +
|
| + @override
|
| + DartEntry visitGenerateDartHintsTask(GenerateDartHintsTask task) =>
|
| + AnalysisContextImpl_this._recordGenerateDartHintsTask(task);
|
| +
|
| + @override
|
| + DartEntry visitGenerateDartLintsTask(GenerateDartLintsTask task) =>
|
| + AnalysisContextImpl_this._recordGenerateDartLintsTask(task);
|
| +
|
| + @override
|
| + SourceEntry visitGetContentTask(GetContentTask task) =>
|
| + AnalysisContextImpl_this._recordGetContentsTask(task);
|
| +
|
| + @override
|
| + DartEntry visitIncrementalAnalysisTask(IncrementalAnalysisTask task) =>
|
| + AnalysisContextImpl_this._recordIncrementalAnalysisTaskResults(task);
|
| +
|
| + @override
|
| + DartEntry visitParseDartTask(ParseDartTask task) =>
|
| + AnalysisContextImpl_this._recordParseDartTaskResults(task);
|
| +
|
| + @override
|
| + HtmlEntry visitParseHtmlTask(ParseHtmlTask task) =>
|
| + AnalysisContextImpl_this._recordParseHtmlTaskResults(task);
|
| +
|
| + @override
|
| + DartEntry visitResolveDartLibraryCycleTask(
|
| + ResolveDartLibraryCycleTask task) =>
|
| + AnalysisContextImpl_this.recordResolveDartLibraryCycleTaskResults(task);
|
| +
|
| + @override
|
| + DartEntry visitResolveDartLibraryTask(ResolveDartLibraryTask task) =>
|
| + AnalysisContextImpl_this.recordResolveDartLibraryTaskResults(task);
|
| +
|
| + @override
|
| + DartEntry visitResolveDartUnitTask(ResolveDartUnitTask task) =>
|
| + AnalysisContextImpl_this._recordResolveDartUnitTaskResults(task);
|
| +
|
| + @override
|
| + HtmlEntry visitResolveHtmlTask(ResolveHtmlTask task) =>
|
| + AnalysisContextImpl_this._recordResolveHtmlTaskResults(task);
|
| +
|
| + @override
|
| + DartEntry visitScanDartTask(ScanDartTask task) =>
|
| + AnalysisContextImpl_this._recordScanDartTaskResults(task);
|
| +}
|
| +
|
| +class AnalysisContextImpl_ContextRetentionPolicy
|
| + implements CacheRetentionPolicy {
|
| + final AnalysisContextImpl AnalysisContextImpl_this;
|
| +
|
| + AnalysisContextImpl_ContextRetentionPolicy(this.AnalysisContextImpl_this);
|
| +
|
| + @override
|
| + RetentionPriority getAstPriority(Source source, SourceEntry sourceEntry) {
|
| + int priorityCount = AnalysisContextImpl_this._priorityOrder.length;
|
| + for (int i = 0; i < priorityCount; i++) {
|
| + if (source == AnalysisContextImpl_this._priorityOrder[i]) {
|
| + return RetentionPriority.HIGH;
|
| + }
|
| + }
|
| + if (AnalysisContextImpl_this._neededForResolution != null &&
|
| + AnalysisContextImpl_this._neededForResolution.contains(source)) {
|
| + return RetentionPriority.HIGH;
|
| + }
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + if (_astIsNeeded(dartEntry)) {
|
| + return RetentionPriority.MEDIUM;
|
| + }
|
| + }
|
| + return RetentionPriority.LOW;
|
| + }
|
| +
|
| + bool _astIsNeeded(DartEntry dartEntry) =>
|
| + dartEntry.hasInvalidData(DartEntry.HINTS) ||
|
| + dartEntry.hasInvalidData(DartEntry.LINTS) ||
|
| + dartEntry.hasInvalidData(DartEntry.VERIFICATION_ERRORS) ||
|
| + dartEntry.hasInvalidData(DartEntry.RESOLUTION_ERRORS);
|
| +}
|
| +
|
| +/**
|
| + * An object used to construct a list of the libraries that must be resolved
|
| + * together in order to resolve any one of the libraries.
|
| + */
|
| +class AnalysisContextImpl_CycleBuilder {
|
| + final AnalysisContextImpl AnalysisContextImpl_this;
|
| +
|
| + /**
|
| + * A table mapping the sources of the defining compilation units of libraries
|
| + * to the representation of the library that has the information needed to
|
| + * resolve the library.
|
| + */
|
| + HashMap<Source, ResolvableLibrary> _libraryMap =
|
| + new HashMap<Source, ResolvableLibrary>();
|
| +
|
| + /**
|
| + * The dependency graph used to compute the libraries in the cycle.
|
| + */
|
| + DirectedGraph<ResolvableLibrary> _dependencyGraph;
|
| +
|
| + /**
|
| + * A list containing the libraries that are ready to be resolved.
|
| + */
|
| + List<ResolvableLibrary> _librariesInCycle;
|
| +
|
| + /**
|
| + * The analysis task that needs to be performed before the cycle of libraries
|
| + * can be resolved, or `null` if the libraries are ready to be resolved.
|
| + */
|
| + AnalysisContextImpl_TaskData _taskData;
|
| +
|
| + /**
|
| + * Initialize a newly created cycle builder.
|
| + */
|
| + AnalysisContextImpl_CycleBuilder(this.AnalysisContextImpl_this) : super();
|
| +
|
| + /**
|
| + * Return a list containing the libraries that are ready to be resolved
|
| + * (assuming that [getTaskData] returns `null`).
|
| + */
|
| + List<ResolvableLibrary> get librariesInCycle => _librariesInCycle;
|
| +
|
| + /**
|
| + * Return a representation of an analysis task that needs to be performed
|
| + * before the cycle of libraries can be resolved, or `null` if the libraries
|
| + * are ready to be resolved.
|
| + */
|
| + AnalysisContextImpl_TaskData get taskData => _taskData;
|
| +
|
| + /**
|
| + * Compute a list of the libraries that need to be resolved together in orde
|
| + * to resolve the given [librarySource].
|
| + */
|
| + void computeCycleContaining(Source librarySource) {
|
| + //
|
| + // Create the object representing the library being resolved.
|
| + //
|
| + ResolvableLibrary targetLibrary = _createLibrary(librarySource);
|
| + //
|
| + // Compute the set of libraries that need to be resolved together.
|
| + //
|
| + _dependencyGraph = new DirectedGraph<ResolvableLibrary>();
|
| + _computeLibraryDependencies(targetLibrary);
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + _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);
|
| + }
|
| + 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
|
| + // cache.
|
| + AnalysisContextImpl_this._neededForResolution = null;
|
| + }
|
| +
|
| + bool _addDependency(ResolvableLibrary dependant, Source dependency,
|
| + List<ResolvableLibrary> dependencyList) {
|
| + if (dependant.librarySource == dependency) {
|
| + // Don't add a dependency of a library on itself; there's no point.
|
| + return true;
|
| + }
|
| + ResolvableLibrary importedLibrary = _libraryMap[dependency];
|
| + if (importedLibrary == null) {
|
| + importedLibrary = _createLibraryOrNull(dependency);
|
| + if (importedLibrary != null) {
|
| + _computeLibraryDependencies(importedLibrary);
|
| + if (_taskData != null) {
|
| + return false;
|
| + }
|
| + }
|
| + }
|
| + if (importedLibrary != null) {
|
| + if (dependencyList != null) {
|
| + dependencyList.add(importedLibrary);
|
| + }
|
| + _dependencyGraph.addEdge(dependant, importedLibrary);
|
| + }
|
| + return true;
|
| + }
|
| +
|
| + /**
|
| + * Recursively traverse the libraries reachable from the given [library],
|
| + * creating instances of the class [Library] to represent them, and record the
|
| + * references in the library objects.
|
| + *
|
| + * Throws an [AnalysisException] if some portion of the library graph could
|
| + * not be traversed.
|
| + */
|
| + void _computeLibraryDependencies(ResolvableLibrary library) {
|
| + Source librarySource = library.librarySource;
|
| + DartEntry dartEntry =
|
| + AnalysisContextImpl_this._getReadableDartEntry(librarySource);
|
| + List<Source> importedSources =
|
| + _getSources(librarySource, dartEntry, DartEntry.IMPORTED_LIBRARIES);
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + List<Source> exportedSources =
|
| + _getSources(librarySource, dartEntry, DartEntry.EXPORTED_LIBRARIES);
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + _computeLibraryDependenciesFromDirectives(
|
| + library, importedSources, exportedSources);
|
| + }
|
| +
|
| + /**
|
| + * Recursively traverse the libraries reachable from the given [library],
|
| + * creating instances of the class [Library] to represent them, and record the
|
| + * references in the library objects. The [importedSources] is a list
|
| + * containing the sources that are imported into the given library. The
|
| + * [exportedSources] is a list containing the sources that are exported from
|
| + * the given library.
|
| + */
|
| + void _computeLibraryDependenciesFromDirectives(ResolvableLibrary library,
|
| + List<Source> importedSources, List<Source> exportedSources) {
|
| + int importCount = importedSources.length;
|
| + List<ResolvableLibrary> importedLibraries = new List<ResolvableLibrary>();
|
| + bool explicitlyImportsCore = false;
|
| + bool importsAsync = false;
|
| + for (int i = 0; i < importCount; i++) {
|
| + Source importedSource = importedSources[i];
|
| + if (importedSource == AnalysisContextImpl_this._coreLibrarySource) {
|
| + explicitlyImportsCore = true;
|
| + } else if (importedSource ==
|
| + AnalysisContextImpl_this._asyncLibrarySource) {
|
| + importsAsync = true;
|
| + }
|
| + if (!_addDependency(library, importedSource, importedLibraries)) {
|
| + return;
|
| + }
|
| + }
|
| + library.explicitlyImportsCore = explicitlyImportsCore;
|
| + if (!explicitlyImportsCore) {
|
| + if (!_addDependency(library, AnalysisContextImpl_this._coreLibrarySource,
|
| + importedLibraries)) {
|
| + return;
|
| + }
|
| + }
|
| + if (!importsAsync) {
|
| + // Add a dependency on async to ensure that the Future element will be
|
| + // built before we generate errors and warnings for async methods. Also
|
| + // include it in importedLibraries, so that it will be picked up by
|
| + // LibraryResolver2._buildLibraryMap().
|
| + // TODO(paulberry): this is a bit of a hack, since the async library
|
| + // isn't actually being imported. Also, it's not clear whether it should
|
| + // be necessary: in theory, dart:core already (indirectly) imports
|
| + // dart:async, so if core has been built, async should have been built
|
| + // too. However, removing this code causes unit test failures.
|
| + if (!_addDependency(library, AnalysisContextImpl_this._asyncLibrarySource,
|
| + importedLibraries)) {
|
| + return;
|
| + }
|
| + }
|
| + library.importedLibraries = importedLibraries;
|
| + int exportCount = exportedSources.length;
|
| + if (exportCount > 0) {
|
| + List<ResolvableLibrary> exportedLibraries = new List<ResolvableLibrary>();
|
| + for (int i = 0; i < exportCount; i++) {
|
| + Source exportedSource = exportedSources[i];
|
| + if (!_addDependency(library, exportedSource, exportedLibraries)) {
|
| + return;
|
| + }
|
| + }
|
| + library.exportedLibraries = exportedLibraries;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Gather the resolvable AST structures for each of the compilation units in
|
| + * each of the libraries in the cycle. This is done in two phases: first we
|
| + * ensure that we have cached an AST structure for each compilation unit, then
|
| + * we gather them. We split the work this way because getting the AST
|
| + * structures can change the state of the cache in such a way that we would
|
| + * have more work to do if any compilation unit didn't have a resolvable AST
|
| + * structure.
|
| + */
|
| + void _computePartsInCycle(Source librarySource) {
|
| + int count = _librariesInCycle.length;
|
| + List<CycleBuilder_LibraryPair> libraryData =
|
| + new List<CycleBuilder_LibraryPair>();
|
| + for (int i = 0; i < count; i++) {
|
| + ResolvableLibrary library = _librariesInCycle[i];
|
| + libraryData.add(new CycleBuilder_LibraryPair(
|
| + library, _ensurePartsInLibrary(library)));
|
| + }
|
| + AnalysisContextImpl_this._neededForResolution = _gatherSources(libraryData);
|
| + if (AnalysisContextImpl._TRACE_PERFORM_TASK) {
|
| + print(
|
| + " preserve resolution data for ${AnalysisContextImpl_this._neededForResolution.length} sources while resolving ${librarySource.fullName}");
|
| + }
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + for (int i = 0; i < count; i++) {
|
| + _computePartsInLibrary(libraryData[i]);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Gather the resolvable compilation units for each of the compilation units
|
| + * in the library represented by the [libraryPair].
|
| + */
|
| + void _computePartsInLibrary(CycleBuilder_LibraryPair libraryPair) {
|
| + ResolvableLibrary library = libraryPair.library;
|
| + List<CycleBuilder_SourceEntryPair> entryPairs = libraryPair.entryPairs;
|
| + int count = entryPairs.length;
|
| + List<ResolvableCompilationUnit> units =
|
| + new List<ResolvableCompilationUnit>(count);
|
| + for (int i = 0; i < count; i++) {
|
| + CycleBuilder_SourceEntryPair entryPair = entryPairs[i];
|
| + Source source = entryPair.source;
|
| + DartEntry dartEntry = entryPair.entry;
|
| + units[i] = new ResolvableCompilationUnit(
|
| + source, dartEntry.resolvableCompilationUnit);
|
| + }
|
| + library.resolvableCompilationUnits = units;
|
| + }
|
| +
|
| + /**
|
| + * Create an object to represent the information about the library defined by
|
| + * the compilation unit with the given [librarySource].
|
| + */
|
| + ResolvableLibrary _createLibrary(Source librarySource) {
|
| + ResolvableLibrary library = new ResolvableLibrary(librarySource);
|
| + SourceEntry sourceEntry =
|
| + AnalysisContextImpl_this._cache.get(librarySource);
|
| + if (sourceEntry is DartEntry) {
|
| + LibraryElementImpl libraryElement =
|
| + sourceEntry.getValue(DartEntry.ELEMENT) as LibraryElementImpl;
|
| + if (libraryElement != null) {
|
| + library.libraryElement = libraryElement;
|
| + }
|
| + }
|
| + _libraryMap[librarySource] = library;
|
| + return library;
|
| + }
|
| +
|
| + /**
|
| + * Create an object to represent the information about the library defined by
|
| + * the compilation unit with the given [librarySource].
|
| + */
|
| + ResolvableLibrary _createLibraryOrNull(Source librarySource) {
|
| + ResolvableLibrary library = new ResolvableLibrary(librarySource);
|
| + SourceEntry sourceEntry =
|
| + AnalysisContextImpl_this._cache.get(librarySource);
|
| + if (sourceEntry is DartEntry) {
|
| + LibraryElementImpl libraryElement =
|
| + sourceEntry.getValue(DartEntry.ELEMENT) as LibraryElementImpl;
|
| + if (libraryElement != null) {
|
| + library.libraryElement = libraryElement;
|
| + }
|
| + }
|
| + _libraryMap[librarySource] = library;
|
| + return library;
|
| + }
|
| +
|
| + /**
|
| + * 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);
|
| + 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.
|
| + * If another task needs to be executed first in order to build the element
|
| + * model, that task is placed in [taskData].
|
| + */
|
| + void _ensureExports(
|
| + ResolvableLibrary library, HashSet<Source> visitedLibraries) {
|
| + List<ResolvableLibrary> dependencies = library.exports;
|
| + int dependencyCount = dependencies.length;
|
| + for (int i = 0; i < dependencyCount; i++) {
|
| + ResolvableLibrary dependency = dependencies[i];
|
| + if (!_librariesInCycle.contains(dependency) &&
|
| + visitedLibraries.add(dependency.librarySource)) {
|
| + if (dependency.libraryElement == null) {
|
| + _ensureElementModel(dependency);
|
| + } else {
|
| + _ensureExports(dependency, visitedLibraries);
|
| + }
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * 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.
|
| + * If another task needs to be executed first in order to build the element
|
| + * model, that task is placed in [taskData].
|
| + */
|
| + void _ensureImports(ResolvableLibrary library) {
|
| + List<ResolvableLibrary> dependencies = library.imports;
|
| + int dependencyCount = dependencies.length;
|
| + for (int i = 0; i < dependencyCount; i++) {
|
| + ResolvableLibrary dependency = dependencies[i];
|
| + if (!_librariesInCycle.contains(dependency) &&
|
| + dependency.libraryElement == null) {
|
| + _ensureElementModel(dependency);
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Ensure that all of the libraries that are either imported or exported by
|
| + * libraries in the cycle (but are not themselves in the cycle) have element
|
| + * models built for them.
|
| + */
|
| + void _ensureImportsAndExports() {
|
| + HashSet<Source> visitedLibraries = new HashSet<Source>();
|
| + int libraryCount = _librariesInCycle.length;
|
| + for (int i = 0; i < libraryCount; i++) {
|
| + ResolvableLibrary library = _librariesInCycle[i];
|
| + _ensureImports(library);
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + _ensureExports(library, visitedLibraries);
|
| + if (_taskData != null) {
|
| + return;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Ensure that there is a resolvable compilation unit available for all of the
|
| + * compilation units in the given [library].
|
| + */
|
| + List<CycleBuilder_SourceEntryPair> _ensurePartsInLibrary(
|
| + ResolvableLibrary library) {
|
| + List<CycleBuilder_SourceEntryPair> pairs =
|
| + new List<CycleBuilder_SourceEntryPair>();
|
| + Source librarySource = library.librarySource;
|
| + DartEntry libraryEntry =
|
| + AnalysisContextImpl_this._getReadableDartEntry(librarySource);
|
| + if (libraryEntry == null) {
|
| + throw new AnalysisException(
|
| + "Cannot find entry for ${librarySource.fullName}");
|
| + } else if (libraryEntry.getState(DartEntry.PARSED_UNIT) ==
|
| + CacheState.ERROR) {
|
| + String message =
|
| + "Cannot compute parsed unit for ${librarySource.fullName}";
|
| + CaughtException exception = libraryEntry.exception;
|
| + if (exception == null) {
|
| + throw new AnalysisException(message);
|
| + }
|
| + throw new AnalysisException(
|
| + message, new CaughtException(exception, null));
|
| + }
|
| + _ensureResolvableCompilationUnit(librarySource, libraryEntry);
|
| + pairs.add(new CycleBuilder_SourceEntryPair(librarySource, libraryEntry));
|
| + List<Source> partSources =
|
| + _getSources(librarySource, libraryEntry, DartEntry.INCLUDED_PARTS);
|
| + int count = partSources.length;
|
| + for (int i = 0; i < count; i++) {
|
| + Source partSource = partSources[i];
|
| + DartEntry partEntry =
|
| + AnalysisContextImpl_this._getReadableDartEntry(partSource);
|
| + if (partEntry != null &&
|
| + partEntry.getState(DartEntry.PARSED_UNIT) != CacheState.ERROR) {
|
| + _ensureResolvableCompilationUnit(partSource, partEntry);
|
| + pairs.add(new CycleBuilder_SourceEntryPair(partSource, partEntry));
|
| + }
|
| + }
|
| + return pairs;
|
| + }
|
| +
|
| + /**
|
| + * Ensure that there is a resolvable compilation unit available for the given
|
| + * [source].
|
| + */
|
| + void _ensureResolvableCompilationUnit(Source source, DartEntry dartEntry) {
|
| + // The entry will be null if the source represents a non-Dart file.
|
| + if (dartEntry != null && !dartEntry.hasResolvableCompilationUnit) {
|
| + if (_taskData == null) {
|
| + _taskData =
|
| + AnalysisContextImpl_this._createParseDartTask(source, dartEntry);
|
| + }
|
| + }
|
| + }
|
| +
|
| + HashSet<Source> _gatherSources(List<CycleBuilder_LibraryPair> libraryData) {
|
| + int libraryCount = libraryData.length;
|
| + HashSet<Source> sources = new HashSet<Source>();
|
| + for (int i = 0; i < libraryCount; i++) {
|
| + List<CycleBuilder_SourceEntryPair> entryPairs = libraryData[i].entryPairs;
|
| + int entryCount = entryPairs.length;
|
| + for (int j = 0; j < entryCount; j++) {
|
| + sources.add(entryPairs[j].source);
|
| + }
|
| + }
|
| + return sources;
|
| + }
|
| +
|
| + /**
|
| + * Return the sources described by the given [descriptor].
|
| + */
|
| + List<Source> _getSources(Source source, DartEntry dartEntry,
|
| + DataDescriptor<List<Source>> descriptor) {
|
| + if (dartEntry == null) {
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + CacheState exportState = dartEntry.getState(descriptor);
|
| + if (exportState == CacheState.ERROR) {
|
| + return Source.EMPTY_LIST;
|
| + } else if (exportState != CacheState.VALID) {
|
| + if (_taskData == null) {
|
| + _taskData =
|
| + AnalysisContextImpl_this._createParseDartTask(source, dartEntry);
|
| + }
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + return dartEntry.getValue(descriptor);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Information about the next task to be performed. Each data has an implicit
|
| + * associated source: the source that might need to be analyzed. There are
|
| + * essentially three states that can be represented:
|
| + *
|
| + * * If [getTask] returns a non-`null` value, then that is the task that should
|
| + * be executed to further analyze the associated source.
|
| + * * Otherwise, if [isBlocked] returns `true`, then there is no work that can be
|
| + * done, but analysis for the associated source is not complete.
|
| + * * Otherwise, [getDependentSource] should return a source that needs to be
|
| + * analyzed before the analysis of the associated source can be completed.
|
| + */
|
| +class AnalysisContextImpl_TaskData {
|
| + /**
|
| + * The task that is to be performed.
|
| + */
|
| + final AnalysisTask task;
|
| +
|
| + /**
|
| + * A flag indicating whether the associated source is blocked waiting for its
|
| + * contents to be loaded.
|
| + */
|
| + final bool _blocked;
|
| +
|
| + /**
|
| + * Initialize a newly created data holder.
|
| + */
|
| + AnalysisContextImpl_TaskData(this.task, this._blocked);
|
| +
|
| + /**
|
| + * Return `true` if the associated source is blocked waiting for its contents
|
| + * to be loaded.
|
| + */
|
| + bool get isBlocked => _blocked;
|
| +
|
| + @override
|
| + String toString() {
|
| + if (task == null) {
|
| + return "blocked: $_blocked";
|
| + }
|
| + return task.toString();
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Statistics and information about a single [AnalysisContext].
|
| + */
|
| +abstract class AnalysisContextStatistics {
|
| + /**
|
| + * Return the statistics for each kind of cached data.
|
| + */
|
| + List<AnalysisContextStatistics_CacheRow> get cacheRows;
|
| +
|
| + /**
|
| + * Return the exceptions that caused some entries to have a state of
|
| + * [CacheState.ERROR].
|
| + */
|
| + List<CaughtException> get exceptions;
|
| +
|
| + /**
|
| + * Return information about each of the partitions in the cache.
|
| + */
|
| + List<AnalysisContextStatistics_PartitionData> get partitionData;
|
| +
|
| + /**
|
| + * Return a list containing all of the sources in the cache.
|
| + */
|
| + List<Source> get sources;
|
| +}
|
| +
|
| +/**
|
| + * Information about single piece of data in the cache.
|
| + */
|
| +abstract class AnalysisContextStatistics_CacheRow {
|
| + /**
|
| + * List of possible states which can be queried.
|
| + */
|
| + static const List<CacheState> STATES = const <CacheState>[
|
| + CacheState.ERROR,
|
| + CacheState.FLUSHED,
|
| + CacheState.IN_PROCESS,
|
| + CacheState.INVALID,
|
| + CacheState.VALID
|
| + ];
|
| +
|
| + /**
|
| + * Return the number of entries whose state is [CacheState.ERROR].
|
| + */
|
| + int get errorCount;
|
| +
|
| + /**
|
| + * Return the number of entries whose state is [CacheState.FLUSHED].
|
| + */
|
| + int get flushedCount;
|
| +
|
| + /**
|
| + * Return the number of entries whose state is [CacheState.IN_PROCESS].
|
| + */
|
| + int get inProcessCount;
|
| +
|
| + /**
|
| + * Return the number of entries whose state is [CacheState.INVALID].
|
| + */
|
| + int get invalidCount;
|
| +
|
| + /**
|
| + * Return the name of the data represented by this object.
|
| + */
|
| + String get name;
|
| +
|
| + /**
|
| + * Return the number of entries whose state is [CacheState.VALID].
|
| + */
|
| + int get validCount;
|
| +
|
| + /**
|
| + * Return the number of entries whose state is [state].
|
| + */
|
| + int getCount(CacheState state);
|
| +}
|
| +
|
| +/**
|
| + * Information about a single partition in the cache.
|
| + */
|
| +abstract class AnalysisContextStatistics_PartitionData {
|
| + /**
|
| + * Return the number of entries in the partition that have an AST structure in
|
| + * one state or another.
|
| + */
|
| + int get astCount;
|
| +
|
| + /**
|
| + * Return the total number of entries in the partition.
|
| + */
|
| + int get totalCount;
|
| +}
|
| +
|
| +/**
|
| + * Implementation of the [AnalysisContextStatistics].
|
| + */
|
| +class AnalysisContextStatisticsImpl implements AnalysisContextStatistics {
|
| + Map<String, AnalysisContextStatistics_CacheRow> _dataMap =
|
| + new HashMap<String, AnalysisContextStatistics_CacheRow>();
|
| +
|
| + List<Source> _sources = new List<Source>();
|
| +
|
| + HashSet<CaughtException> _exceptions = new HashSet<CaughtException>();
|
| +
|
| + List<AnalysisContextStatistics_PartitionData> _partitionData;
|
| +
|
| + @override
|
| + List<AnalysisContextStatistics_CacheRow> get cacheRows =>
|
| + _dataMap.values.toList();
|
| +
|
| + @override
|
| + List<CaughtException> get exceptions => new List.from(_exceptions);
|
| +
|
| + @override
|
| + List<AnalysisContextStatistics_PartitionData> get partitionData =>
|
| + _partitionData;
|
| +
|
| + /**
|
| + * Set the partition data returned by this object to the given data.
|
| + */
|
| + void set partitionData(List<AnalysisContextStatistics_PartitionData> data) {
|
| + _partitionData = data;
|
| + }
|
| +
|
| + @override
|
| + List<Source> get sources => _sources;
|
| +
|
| + void addSource(Source source) {
|
| + _sources.add(source);
|
| + }
|
| +
|
| + void _internalPutCacheItem(Source source, SourceEntry dartEntry,
|
| + DataDescriptor rowDesc, CacheState state) {
|
| + String rowName = rowDesc.toString();
|
| + AnalysisContextStatisticsImpl_CacheRowImpl row =
|
| + _dataMap[rowName] as AnalysisContextStatisticsImpl_CacheRowImpl;
|
| + if (row == null) {
|
| + row = new AnalysisContextStatisticsImpl_CacheRowImpl(rowName);
|
| + _dataMap[rowName] = row;
|
| + }
|
| + row._incState(state);
|
| + if (state == CacheState.ERROR) {
|
| + CaughtException exception = dartEntry.exception;
|
| + if (exception != null) {
|
| + _exceptions.add(exception);
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +class AnalysisContextStatisticsImpl_CacheRowImpl
|
| + implements AnalysisContextStatistics_CacheRow {
|
| + final String name;
|
| +
|
| + Map<CacheState, int> _counts = <CacheState, int>{};
|
| +
|
| + AnalysisContextStatisticsImpl_CacheRowImpl(this.name);
|
| +
|
| + @override
|
| + int get errorCount => getCount(CacheState.ERROR);
|
| +
|
| + @override
|
| + int get flushedCount => getCount(CacheState.FLUSHED);
|
| +
|
| + @override
|
| + int get hashCode => name.hashCode;
|
| +
|
| + @override
|
| + int get inProcessCount => getCount(CacheState.IN_PROCESS);
|
| +
|
| + @override
|
| + int get invalidCount => getCount(CacheState.INVALID);
|
| +
|
| + @override
|
| + int get validCount => getCount(CacheState.VALID);
|
| +
|
| + @override
|
| + bool operator ==(Object obj) =>
|
| + obj is AnalysisContextStatisticsImpl_CacheRowImpl && obj.name == name;
|
| +
|
| + @override
|
| + int getCount(CacheState state) {
|
| + int count = _counts[state];
|
| + if (count != null) {
|
| + return count;
|
| + } else {
|
| + return 0;
|
| + }
|
| + }
|
| +
|
| + void _incState(CacheState state) {
|
| + if (_counts[state] == null) {
|
| + _counts[state] = 1;
|
| + } else {
|
| + _counts[state]++;
|
| + }
|
| + }
|
| +}
|
| +
|
| +class AnalysisContextStatisticsImpl_PartitionDataImpl
|
| + implements AnalysisContextStatistics_PartitionData {
|
| + final int astCount;
|
| +
|
| + final int totalCount;
|
| +
|
| + AnalysisContextStatisticsImpl_PartitionDataImpl(
|
| + this.astCount, this.totalCount);
|
| +}
|
| +
|
| +/**
|
| + * A representation of changes to the types of analysis that should be
|
| + * performed.
|
| + */
|
| +class AnalysisDelta {
|
| + /**
|
| + * A mapping from source to what type of analysis should be performed on that
|
| + * source.
|
| + */
|
| + HashMap<Source, AnalysisLevel> _analysisMap =
|
| + new HashMap<Source, AnalysisLevel>();
|
| +
|
| + /**
|
| + * Return a collection of the sources that have been added. This is equivalent
|
| + * to calling [getAnalysisLevels] and collecting all sources that do not have
|
| + * an analysis level of [AnalysisLevel.NONE].
|
| + */
|
| + List<Source> get addedSources {
|
| + List<Source> result = new List<Source>();
|
| + _analysisMap.forEach((Source source, AnalysisLevel level) {
|
| + if (level != AnalysisLevel.NONE) {
|
| + result.add(source);
|
| + }
|
| + });
|
| + return result;
|
| + }
|
| +
|
| + /**
|
| + * Return a mapping of sources to the level of analysis that should be
|
| + * performed.
|
| + */
|
| + Map<Source, AnalysisLevel> get analysisLevels => _analysisMap;
|
| +
|
| + /**
|
| + * Record that the given [source] should be analyzed at the given [level].
|
| + */
|
| + void setAnalysisLevel(Source source, AnalysisLevel level) {
|
| + _analysisMap[source] = level;
|
| + }
|
| +
|
| + @override
|
| + String toString() {
|
| + StringBuffer buffer = new StringBuffer();
|
| + bool needsSeparator = _appendSources(buffer, false, AnalysisLevel.ALL);
|
| + needsSeparator =
|
| + _appendSources(buffer, needsSeparator, AnalysisLevel.RESOLVED);
|
| + _appendSources(buffer, needsSeparator, AnalysisLevel.NONE);
|
| + return buffer.toString();
|
| + }
|
| +
|
| + /**
|
| + * Appendto the given [buffer] all sources with the given analysis [level],
|
| + * prefixed with a label and a separator if [needsSeparator] is `true`.
|
| + */
|
| + bool _appendSources(
|
| + StringBuffer buffer, bool needsSeparator, AnalysisLevel level) {
|
| + bool first = true;
|
| + _analysisMap.forEach((Source source, AnalysisLevel sourceLevel) {
|
| + if (sourceLevel == level) {
|
| + if (first) {
|
| + first = false;
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write(level);
|
| + buffer.write(" ");
|
| + } else {
|
| + buffer.write(", ");
|
| + }
|
| + buffer.write(source.fullName);
|
| + }
|
| + });
|
| + return needsSeparator || !first;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The entry point for the functionality provided by the analysis engine. There
|
| + * is a single instance of this class.
|
| + */
|
| +class AnalysisEngine {
|
| + /**
|
| + * The suffix used for Dart source files.
|
| + */
|
| + static const String SUFFIX_DART = "dart";
|
| +
|
| + /**
|
| + * The short suffix used for HTML files.
|
| + */
|
| + static const String SUFFIX_HTM = "htm";
|
| +
|
| + /**
|
| + * The long suffix used for HTML files.
|
| + */
|
| + static const String SUFFIX_HTML = "html";
|
| +
|
| + /**
|
| + * The unique instance of this class.
|
| + */
|
| + static final AnalysisEngine instance = new AnalysisEngine._();
|
| +
|
| + /**
|
| + * The logger that should receive information about errors within the analysis
|
| + * engine.
|
| + */
|
| + Logger _logger = Logger.NULL;
|
| +
|
| + /**
|
| + * The plugin that defines the extension points and extensions that are defined by
|
| + * command-line applications using the analysis engine.
|
| + */
|
| + final CommandLinePlugin commandLinePlugin = new CommandLinePlugin();
|
| +
|
| + /**
|
| + * The plugin that defines the extension points and extensions that are
|
| + * inherently defined by the analysis engine.
|
| + */
|
| + final EnginePlugin enginePlugin = new EnginePlugin();
|
| +
|
| + /***
|
| + * The plugin that defines the extension points and extensions that are defined
|
| + * by applications that want to consume options defined in the analysis
|
| + * options file.
|
| + */
|
| + final OptionsPlugin optionsPlugin = new OptionsPlugin();
|
| +
|
| + /**
|
| + * The instrumentation service that is to be used by this analysis engine.
|
| + */
|
| + InstrumentationService _instrumentationService =
|
| + InstrumentationService.NULL_SERVICE;
|
| +
|
| + /**
|
| + * The list of supported plugins for processing by clients.
|
| + */
|
| + List<Plugin> _supportedPlugins;
|
| +
|
| + /**
|
| + * The partition manager being used to manage the shared partitions.
|
| + */
|
| + final PartitionManager partitionManager = new PartitionManager();
|
| +
|
| + /**
|
| + * The partition manager being used to manage the shared partitions.
|
| + */
|
| + final newContext.PartitionManager partitionManager_new =
|
| + new newContext.PartitionManager();
|
| +
|
| + /**
|
| + * A flag indicating whether the (new) task model should be used to perform
|
| + * analysis.
|
| + */
|
| + bool useTaskModel = false;
|
| +
|
| + /**
|
| + * A flag indicating whether the task model should attempt to limit
|
| + * invalidation after a change.
|
| + */
|
| + bool limitInvalidationInTaskModel = false;
|
| +
|
| + /**
|
| + * The task manager used to manage the tasks used to analyze code.
|
| + */
|
| + TaskManager _taskManager;
|
| +
|
| + AnalysisEngine._();
|
| +
|
| + /**
|
| + * Return the instrumentation service that is to be used by this analysis
|
| + * engine.
|
| + */
|
| + InstrumentationService get instrumentationService => _instrumentationService;
|
| +
|
| + /**
|
| + * Set the instrumentation service that is to be used by this analysis engine
|
| + * to the given [service].
|
| + */
|
| + void set instrumentationService(InstrumentationService service) {
|
| + if (service == null) {
|
| + _instrumentationService = InstrumentationService.NULL_SERVICE;
|
| + } else {
|
| + _instrumentationService = service;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the logger that should receive information about errors within the
|
| + * analysis engine.
|
| + */
|
| + Logger get logger => _logger;
|
| +
|
| + /**
|
| + * Set the logger that should receive information about errors within the
|
| + * analysis engine to the given [logger].
|
| + */
|
| + void set logger(Logger logger) {
|
| + this._logger = logger == null ? Logger.NULL : logger;
|
| + }
|
| +
|
| + /**
|
| + * Return the list of supported plugins for processing by clients.
|
| + */
|
| + List<Plugin> get supportedPlugins {
|
| + if (_supportedPlugins == null) {
|
| + _supportedPlugins = <Plugin>[
|
| + enginePlugin,
|
| + commandLinePlugin,
|
| + optionsPlugin
|
| + ];
|
| + }
|
| + return _supportedPlugins;
|
| + }
|
| +
|
| + /**
|
| + * Return the task manager used to manage the tasks used to analyze code.
|
| + */
|
| + TaskManager get taskManager {
|
| + if (_taskManager == null) {
|
| + if (enginePlugin.taskExtensionPoint == null) {
|
| + // The plugin wasn't used, so tasks are not registered.
|
| + new ExtensionManager().processPlugins([enginePlugin]);
|
| + }
|
| + _taskManager = new TaskManager();
|
| + _taskManager.addTaskDescriptors(enginePlugin.taskDescriptors);
|
| + // TODO(brianwilkerson) Create a way to associate different results with
|
| + // different file suffixes, then make this pluggable.
|
| + _taskManager.addGeneralResult(DART_ERRORS);
|
| + }
|
| + return _taskManager;
|
| + }
|
| +
|
| + /**
|
| + * Clear any caches holding on to analysis results so that a full re-analysis
|
| + * will be performed the next time an analysis context is created.
|
| + */
|
| + void clearCaches() {
|
| + partitionManager.clearCache();
|
| + }
|
| +
|
| + /**
|
| + * Create and return a new context in which analysis can be performed.
|
| + */
|
| + AnalysisContext createAnalysisContext() {
|
| + if (useTaskModel) {
|
| + return new newContext.AnalysisContextImpl();
|
| + }
|
| + return new AnalysisContextImpl();
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the given [fileName] is assumed to contain Dart source
|
| + * code.
|
| + */
|
| + static bool isDartFileName(String fileName) {
|
| + if (fileName == null) {
|
| + return false;
|
| + }
|
| + return javaStringEqualsIgnoreCase(
|
| + FileNameUtilities.getExtension(fileName), SUFFIX_DART);
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the given [fileName] is assumed to contain HTML.
|
| + */
|
| + static bool isHtmlFileName(String fileName) {
|
| + if (fileName == null) {
|
| + return false;
|
| + }
|
| + String extension = FileNameUtilities.getExtension(fileName);
|
| + return javaStringEqualsIgnoreCase(extension, SUFFIX_HTML) ||
|
| + javaStringEqualsIgnoreCase(extension, SUFFIX_HTM);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The analysis errors and line information for the errors.
|
| + */
|
| +abstract class AnalysisErrorInfo {
|
| + /**
|
| + * Return the errors that as a result of the analysis, or `null` if there were
|
| + * no errors.
|
| + */
|
| + List<AnalysisError> get errors;
|
| +
|
| + /**
|
| + * Return the line information associated with the errors, or `null` if there
|
| + * were no errors.
|
| + */
|
| + LineInfo get lineInfo;
|
| +}
|
| +
|
| +/**
|
| + * The analysis errors and line info associated with a source.
|
| + */
|
| +class AnalysisErrorInfoImpl implements AnalysisErrorInfo {
|
| + /**
|
| + * The analysis errors associated with a source, or `null` if there are no
|
| + * errors.
|
| + */
|
| + final List<AnalysisError> errors;
|
| +
|
| + /**
|
| + * The line information associated with the errors, or `null` if there are no
|
| + * errors.
|
| + */
|
| + final LineInfo lineInfo;
|
| +
|
| + /**
|
| + * Initialize an newly created error info with the given [errors] and
|
| + * [lineInfo].
|
| + */
|
| + AnalysisErrorInfoImpl(this.errors, this.lineInfo);
|
| +}
|
| +
|
| +/**
|
| + * The levels at which a source can be analyzed.
|
| + */
|
| +class AnalysisLevel extends Enum<AnalysisLevel> {
|
| + /**
|
| + * Indicates a source should be fully analyzed.
|
| + */
|
| + static const AnalysisLevel ALL = const AnalysisLevel('ALL', 0);
|
| +
|
| + /**
|
| + * Indicates a source should be resolved and that errors, warnings and hints are needed.
|
| + */
|
| + static const AnalysisLevel ERRORS = const AnalysisLevel('ERRORS', 1);
|
| +
|
| + /**
|
| + * Indicates a source should be resolved, but that errors, warnings and hints are not needed.
|
| + */
|
| + static const AnalysisLevel RESOLVED = const AnalysisLevel('RESOLVED', 2);
|
| +
|
| + /**
|
| + * Indicates a source is not of interest to the client.
|
| + */
|
| + static const AnalysisLevel NONE = const AnalysisLevel('NONE', 3);
|
| +
|
| + static const List<AnalysisLevel> values = const [ALL, ERRORS, RESOLVED, NONE];
|
| +
|
| + const AnalysisLevel(String name, int ordinal) : super(name, ordinal);
|
| +}
|
| +
|
| +/**
|
| + * An object that is listening for results being produced by an analysis
|
| + * context.
|
| + */
|
| +abstract class AnalysisListener {
|
| + /**
|
| + * Reports that a task, described by the given [taskDescription] is about to
|
| + * be performed by the given [context].
|
| + */
|
| + void aboutToPerformTask(AnalysisContext context, String taskDescription);
|
| +
|
| + /**
|
| + * Reports that the [errors] associated with the given [source] in the given
|
| + * [context] has been updated to the given errors. The [lineInfo] is the line
|
| + * information associated with the source.
|
| + */
|
| + void computedErrors(AnalysisContext context, Source source,
|
| + List<AnalysisError> errors, LineInfo lineInfo);
|
| +
|
| + /**
|
| + * Reports that the given [source] is no longer included in the set of sources
|
| + * that are being analyzed by the given analysis [context].
|
| + */
|
| + void excludedSource(AnalysisContext context, Source source);
|
| +
|
| + /**
|
| + * Reports that the given [source] is now included in the set of sources that
|
| + * are being analyzed by the given analysis [context].
|
| + */
|
| + void includedSource(AnalysisContext context, Source source);
|
| +
|
| + /**
|
| + * Reports that the given Dart [source] was parsed in the given [context],
|
| + * producing the given [unit].
|
| + */
|
| + void parsedDart(AnalysisContext context, Source source, CompilationUnit unit);
|
| +
|
| + /**
|
| + * Reports that the given HTML [source] was parsed in the given [context].
|
| + */
|
| + @deprecated
|
| + void parsedHtml(AnalysisContext context, Source source, ht.HtmlUnit unit);
|
| +
|
| + /**
|
| + * Reports that the given Dart [source] was resolved in the given [context].
|
| + */
|
| + void resolvedDart(
|
| + AnalysisContext context, Source source, CompilationUnit unit);
|
| +
|
| + /**
|
| + * Reports that the given HTML [source] was resolved in the given [context].
|
| + */
|
| + @deprecated
|
| + void resolvedHtml(AnalysisContext context, Source source, ht.HtmlUnit unit);
|
| +}
|
| +
|
| +/**
|
| + * Futures returned by [AnalysisContext] for pending analysis results will
|
| + * complete with this error if it is determined that analysis results will
|
| + * never become available (e.g. because the requested source is not subject to
|
| + * analysis, or because the requested source is a part file which is not a part
|
| + * of any known library).
|
| + */
|
| +class AnalysisNotScheduledError implements Exception {}
|
| +
|
| +/**
|
| + * A set of analysis options used to control the behavior of an analysis
|
| + * context.
|
| + */
|
| +abstract class AnalysisOptions {
|
| + /**
|
| + * If analysis is to parse and analyze all function bodies, return `true`.
|
| + * If analysis is to skip all function bodies, return `false`. If analysis
|
| + * is to parse and analyze function bodies in some sources and not in others,
|
| + * throw an exception.
|
| + *
|
| + * This getter is deprecated; consider using [analyzeFunctionBodiesPredicate]
|
| + * instead.
|
| + */
|
| + @deprecated // Use this.analyzeFunctionBodiesPredicate
|
| + bool get analyzeFunctionBodies;
|
| +
|
| + /**
|
| + * Function that returns `true` if analysis is to parse and analyze function
|
| + * bodies for a given source.
|
| + */
|
| + AnalyzeFunctionBodiesPredicate get analyzeFunctionBodiesPredicate;
|
| +
|
| + /**
|
| + * Return the maximum number of sources for which AST structures should be
|
| + * kept in the cache.
|
| + */
|
| + int get cacheSize;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to generate dart2js related hint results.
|
| + */
|
| + bool get dart2jsHint;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to include the new async support.
|
| + */
|
| + @deprecated // Always true
|
| + bool get enableAsync;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to include the new deferred loading support.
|
| + */
|
| + @deprecated // Always true
|
| + bool get enableDeferredLoading;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to include the new enum support.
|
| + */
|
| + @deprecated // Always true
|
| + bool get enableEnum;
|
| +
|
| + /**
|
| + * Return `true` to enable generic methods (DEP 22).
|
| + */
|
| + bool get enableGenericMethods => null;
|
| +
|
| + /**
|
| + * Return `true` to enable null-aware operators (DEP 9).
|
| + */
|
| + @deprecated // Always true
|
| + bool get enableNullAwareOperators;
|
| +
|
| + /**
|
| + * Return `true` to strictly follow the specification when generating
|
| + * warnings on "call" methods (fixes dartbug.com/21938).
|
| + */
|
| + bool get enableStrictCallChecks;
|
| +
|
| + /**
|
| + * Return `true` if mixins are allowed to inherit from types other than
|
| + * Object, and are allowed to reference `super`.
|
| + */
|
| + bool get enableSuperMixins;
|
| +
|
| + /**
|
| + * Return `true` if errors, warnings and hints should be generated for sources
|
| + * that are implicitly being analyzed. The default value is `true`.
|
| + */
|
| + bool get generateImplicitErrors;
|
| +
|
| + /**
|
| + * Return `true` if errors, warnings and hints should be generated for sources
|
| + * in the SDK. The default value is `false`.
|
| + */
|
| + bool get generateSdkErrors;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to generate hint results (e.g. type inference
|
| + * based information and pub best practices).
|
| + */
|
| + bool get hint;
|
| +
|
| + /**
|
| + * Return `true` if incremental analysis should be used.
|
| + */
|
| + bool get incremental;
|
| +
|
| + /**
|
| + * A flag indicating whether incremental analysis should be used for API
|
| + * changes.
|
| + */
|
| + bool get incrementalApi;
|
| +
|
| + /**
|
| + * A flag indicating whether validation should be performed after incremental
|
| + * analysis.
|
| + */
|
| + bool get incrementalValidation;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to generate lint warnings.
|
| + */
|
| + bool get lint;
|
| +
|
| + /**
|
| + * Return `true` if analysis is to parse comments.
|
| + */
|
| + bool get preserveComments;
|
| +
|
| + /**
|
| + * Return `true` if strong mode analysis should be used.
|
| + */
|
| + bool get strongMode;
|
| +}
|
| +
|
| +/**
|
| + * A set of analysis options used to control the behavior of an analysis
|
| + * context.
|
| + */
|
| +class AnalysisOptionsImpl implements AnalysisOptions {
|
| + /**
|
| + * The maximum number of sources for which data should be kept in the cache.
|
| + */
|
| + static const int DEFAULT_CACHE_SIZE = 64;
|
| +
|
| + /**
|
| + * The default value for enabling deferred loading.
|
| + */
|
| + @deprecated
|
| + static bool DEFAULT_ENABLE_DEFERRED_LOADING = true;
|
| +
|
| + /**
|
| + * The default value for enabling enum support.
|
| + */
|
| + @deprecated
|
| + static bool DEFAULT_ENABLE_ENUM = true;
|
| +
|
| + /**
|
| + * A predicate indicating whether analysis is to parse and analyze function
|
| + * bodies.
|
| + */
|
| + AnalyzeFunctionBodiesPredicate _analyzeFunctionBodiesPredicate =
|
| + _analyzeAllFunctionBodies;
|
| +
|
| + /**
|
| + * The maximum number of sources for which AST structures should be kept in
|
| + * the cache.
|
| + */
|
| + int cacheSize = DEFAULT_CACHE_SIZE;
|
| +
|
| + /**
|
| + * A flag indicating whether analysis is to generate dart2js related hint
|
| + * results.
|
| + */
|
| + bool dart2jsHint = false;
|
| +
|
| + /**
|
| + * A flag indicating whether generic methods are to be supported (DEP 22).
|
| + */
|
| + bool enableGenericMethods = false;
|
| +
|
| + /**
|
| + * A flag indicating whether analysis is to strictly follow the specification
|
| + * when generating warnings on "call" methods (fixes dartbug.com/21938).
|
| + */
|
| + bool enableStrictCallChecks = false;
|
| +
|
| + /**
|
| + * A flag indicating whether mixins are allowed to inherit from types other
|
| + * than Object, and are allowed to reference `super`.
|
| + */
|
| + bool enableSuperMixins = false;
|
| +
|
| + /**
|
| + * A flag indicating whether errors, warnings and hints should be generated
|
| + * for sources that are implicitly being analyzed.
|
| + */
|
| + bool generateImplicitErrors = true;
|
| +
|
| + /**
|
| + * A flag indicating whether errors, warnings and hints should be generated
|
| + * for sources in the SDK.
|
| + */
|
| + bool generateSdkErrors = false;
|
| +
|
| + /**
|
| + * A flag indicating whether analysis is to generate hint results (e.g. type
|
| + * inference based information and pub best practices).
|
| + */
|
| + bool hint = true;
|
| +
|
| + /**
|
| + * A flag indicating whether incremental analysis should be used.
|
| + */
|
| + bool incremental = false;
|
| +
|
| + /**
|
| + * A flag indicating whether incremental analysis should be used for API
|
| + * changes.
|
| + */
|
| + bool incrementalApi = false;
|
| +
|
| + /**
|
| + * A flag indicating whether validation should be performed after incremental
|
| + * analysis.
|
| + */
|
| + bool incrementalValidation = false;
|
| +
|
| + /**
|
| + * A flag indicating whether analysis is to generate lint warnings.
|
| + */
|
| + bool lint = false;
|
| +
|
| + /**
|
| + * A flag indicating whether analysis is to parse comments.
|
| + */
|
| + bool preserveComments = true;
|
| +
|
| + /**
|
| + * A flag indicating whether strong-mode analysis should be used.
|
| + */
|
| + bool strongMode = false;
|
| +
|
| + /**
|
| + * Initialize a newly created set of analysis options to have their default
|
| + * values.
|
| + */
|
| + AnalysisOptionsImpl();
|
| +
|
| + /**
|
| + * Initialize a newly created set of analysis options to have the same values
|
| + * as those in the given set of analysis [options].
|
| + */
|
| + @deprecated // Use new AnalysisOptionsImpl.from(options)
|
| + AnalysisOptionsImpl.con1(AnalysisOptions options) {
|
| + analyzeFunctionBodiesPredicate = options.analyzeFunctionBodiesPredicate;
|
| + cacheSize = options.cacheSize;
|
| + dart2jsHint = options.dart2jsHint;
|
| + enableStrictCallChecks = options.enableStrictCallChecks;
|
| + enableSuperMixins = options.enableSuperMixins;
|
| + generateImplicitErrors = options.generateImplicitErrors;
|
| + generateSdkErrors = options.generateSdkErrors;
|
| + hint = options.hint;
|
| + incremental = options.incremental;
|
| + incrementalApi = options.incrementalApi;
|
| + incrementalValidation = options.incrementalValidation;
|
| + lint = options.lint;
|
| + preserveComments = options.preserveComments;
|
| + strongMode = options.strongMode;
|
| + }
|
| +
|
| + /**
|
| + * Initialize a newly created set of analysis options to have the same values
|
| + * as those in the given set of analysis [options].
|
| + */
|
| + AnalysisOptionsImpl.from(AnalysisOptions options) {
|
| + analyzeFunctionBodiesPredicate = options.analyzeFunctionBodiesPredicate;
|
| + cacheSize = options.cacheSize;
|
| + dart2jsHint = options.dart2jsHint;
|
| + enableStrictCallChecks = options.enableStrictCallChecks;
|
| + enableSuperMixins = options.enableSuperMixins;
|
| + generateImplicitErrors = options.generateImplicitErrors;
|
| + generateSdkErrors = options.generateSdkErrors;
|
| + hint = options.hint;
|
| + incremental = options.incremental;
|
| + incrementalApi = options.incrementalApi;
|
| + incrementalValidation = options.incrementalValidation;
|
| + lint = options.lint;
|
| + preserveComments = options.preserveComments;
|
| + strongMode = options.strongMode;
|
| + }
|
| +
|
| + bool get analyzeFunctionBodies {
|
| + if (identical(analyzeFunctionBodiesPredicate, _analyzeAllFunctionBodies)) {
|
| + return true;
|
| + } else if (identical(
|
| + analyzeFunctionBodiesPredicate, _analyzeNoFunctionBodies)) {
|
| + return false;
|
| + } else {
|
| + throw new StateError('analyzeFunctionBodiesPredicate in use');
|
| + }
|
| + }
|
| +
|
| + set analyzeFunctionBodies(bool value) {
|
| + if (value) {
|
| + analyzeFunctionBodiesPredicate = _analyzeAllFunctionBodies;
|
| + } else {
|
| + analyzeFunctionBodiesPredicate = _analyzeNoFunctionBodies;
|
| + }
|
| + }
|
| +
|
| + @override
|
| + AnalyzeFunctionBodiesPredicate get analyzeFunctionBodiesPredicate =>
|
| + _analyzeFunctionBodiesPredicate;
|
| +
|
| + set analyzeFunctionBodiesPredicate(AnalyzeFunctionBodiesPredicate value) {
|
| + if (value == null) {
|
| + throw new ArgumentError.notNull('analyzeFunctionBodiesPredicate');
|
| + }
|
| + _analyzeFunctionBodiesPredicate = value;
|
| + }
|
| +
|
| + @deprecated
|
| + @override
|
| + bool get enableAsync => true;
|
| +
|
| + @deprecated
|
| + void set enableAsync(bool enable) {
|
| + // Async support cannot be disabled
|
| + }
|
| +
|
| + @deprecated
|
| + @override
|
| + bool get enableDeferredLoading => true;
|
| +
|
| + @deprecated
|
| + void set enableDeferredLoading(bool enable) {
|
| + // Deferred loading support cannot be disabled
|
| + }
|
| +
|
| + @deprecated
|
| + @override
|
| + bool get enableEnum => true;
|
| +
|
| + @deprecated
|
| + void set enableEnum(bool enable) {
|
| + // Enum support cannot be disabled
|
| + }
|
| +
|
| + @deprecated
|
| + @override
|
| + bool get enableNullAwareOperators => true;
|
| +
|
| + @deprecated
|
| + void set enableNullAwareOperators(bool enable) {
|
| + // Null-aware operator support cannot be disabled
|
| + }
|
| +
|
| + /**
|
| + * Predicate used for [analyzeFunctionBodiesPredicate] when
|
| + * [analyzeFunctionBodies] is set to `true`.
|
| + */
|
| + static bool _analyzeAllFunctionBodies(Source _) => true;
|
| +
|
| + /**
|
| + * Predicate used for [analyzeFunctionBodiesPredicate] when
|
| + * [analyzeFunctionBodies] is set to `false`.
|
| + */
|
| + static bool _analyzeNoFunctionBodies(Source _) => false;
|
| +}
|
| +
|
| +/**
|
| + *
|
| + */
|
| +class AnalysisResult {
|
| + /**
|
| + * The change notices associated with this result, or `null` if there were no
|
| + * changes and there is no more work to be done.
|
| + */
|
| + final List<ChangeNotice> _notices;
|
| +
|
| + /**
|
| + * The number of milliseconds required to determine which task was to be
|
| + * performed.
|
| + */
|
| + final int getTime;
|
| +
|
| + /**
|
| + * The name of the class of the task that was performed.
|
| + */
|
| + final String taskClassName;
|
| +
|
| + /**
|
| + * The number of milliseconds required to perform the task.
|
| + */
|
| + final int performTime;
|
| +
|
| + /**
|
| + * Initialize a newly created analysis result to have the given values. The
|
| + * [notices] is the change notices associated with this result. The [getTime]
|
| + * is the number of milliseconds required to determine which task was to be
|
| + * performed. The [taskClassName] is the name of the class of the task that
|
| + * was performed. The [performTime] is the number of milliseconds required to
|
| + * perform the task.
|
| + */
|
| + AnalysisResult(
|
| + this._notices, this.getTime, this.taskClassName, this.performTime);
|
| +
|
| + /**
|
| + * Return the change notices associated with this result, or `null` if there
|
| + * were no changes and there is no more work to be done.
|
| + */
|
| + List<ChangeNotice> get changeNotices => _notices;
|
| +
|
| + /**
|
| + * Return `true` if there is more to be performed after the task that was
|
| + * performed.
|
| + */
|
| + bool get hasMoreWork => _notices != null;
|
| +}
|
| +
|
| +/**
|
| + * An analysis task.
|
| + */
|
| +abstract class AnalysisTask {
|
| + /**
|
| + * The context in which the task is to be performed.
|
| + */
|
| + final InternalAnalysisContext context;
|
| +
|
| + /**
|
| + * The exception that was thrown while performing this task, or `null` if the
|
| + * task completed successfully.
|
| + */
|
| + CaughtException _thrownException;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given
|
| + * [context].
|
| + */
|
| + AnalysisTask(this.context);
|
| +
|
| + /**
|
| + * Return the exception that was thrown while performing this task, or `null`
|
| + * if the task completed successfully.
|
| + */
|
| + CaughtException get exception => _thrownException;
|
| +
|
| + /**
|
| + * Return a textual description of this task.
|
| + */
|
| + String get taskDescription;
|
| +
|
| + /**
|
| + * Use the given [visitor] to visit this task. Throws an [AnalysisException]
|
| + * if the visitor throws the exception.
|
| + */
|
| + accept(AnalysisTaskVisitor visitor);
|
| +
|
| + /**
|
| + * Perform this analysis task, protected by an exception handler. Throws an
|
| + * [AnalysisException] if an exception occurs while performing the task.
|
| + */
|
| + void internalPerform();
|
| +
|
| + /**
|
| + * Perform this analysis task and use the given [visitor] to visit this task
|
| + * after it has completed. Throws an [AnalysisException] if the visitor throws
|
| + * the exception.
|
| + */
|
| + Object perform(AnalysisTaskVisitor visitor) {
|
| + try {
|
| + _safelyPerform();
|
| + } on AnalysisException catch (exception, stackTrace) {
|
| + _thrownException = new CaughtException(exception, stackTrace);
|
| + AnalysisEngine.instance.logger.logInformation(
|
| + "Task failed: $taskDescription",
|
| + new CaughtException(exception, stackTrace));
|
| + }
|
| + return PerformanceStatistics.analysisTaskVisitor
|
| + .makeCurrentWhile(() => accept(visitor));
|
| + }
|
| +
|
| + @override
|
| + String toString() => taskDescription;
|
| +
|
| + /**
|
| + * 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);
|
| + internalPerform();
|
| + } on AnalysisException {
|
| + rethrow;
|
| + } catch (exception, stackTrace) {
|
| + throw new AnalysisException(
|
| + exception.toString(), new CaughtException(exception, stackTrace));
|
| + }
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An object used to visit tasks. While tasks are not structured in any
|
| + * interesting way, this class provides the ability to dispatch to an
|
| + * appropriate method.
|
| + */
|
| +abstract class AnalysisTaskVisitor<E> {
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitGenerateDartErrorsTask(GenerateDartErrorsTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitGenerateDartHintsTask(GenerateDartHintsTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitGenerateDartLintsTask(GenerateDartLintsTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitGetContentTask(GetContentTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitIncrementalAnalysisTask(
|
| + IncrementalAnalysisTask incrementalAnalysisTask);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitParseDartTask(ParseDartTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitParseHtmlTask(ParseHtmlTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitResolveDartLibraryCycleTask(ResolveDartLibraryCycleTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitResolveDartLibraryTask(ResolveDartLibraryTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitResolveDartUnitTask(ResolveDartUnitTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitResolveHtmlTask(ResolveHtmlTask task);
|
| +
|
| + /**
|
| + * Visit the given [task], returning the result of the visit. This method will
|
| + * throw an AnalysisException if the visitor throws an exception.
|
| + */
|
| + E visitScanDartTask(ScanDartTask task);
|
| +}
|
| +
|
| +/**
|
| + * A `CachedResult` is a single analysis result that is stored in a
|
| + * [SourceEntry].
|
| + */
|
| +class CachedResult<E> {
|
| + /**
|
| + * The state of the cached value.
|
| + */
|
| + CacheState state;
|
| +
|
| + /**
|
| + * The value being cached, or `null` if there is no value (for example, when
|
| + * the [state] is [CacheState.INVALID].
|
| + */
|
| + E value;
|
| +
|
| + /**
|
| + * Initialize a newly created result holder to represent the value of data
|
| + * described by the given [descriptor].
|
| + */
|
| + CachedResult(DataDescriptor descriptor) {
|
| + state = CacheState.INVALID;
|
| + value = descriptor.defaultValue;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * A single partition in an LRU cache of information related to analysis.
|
| + */
|
| +abstract class CachePartition {
|
| + /**
|
| + * The context that owns this partition. Multiple contexts can reference a
|
| + * partition, but only one context can own it.
|
| + */
|
| + final InternalAnalysisContext context;
|
| +
|
| + /**
|
| + * The maximum number of sources for which AST structures should be kept in
|
| + * the cache.
|
| + */
|
| + int _maxCacheSize = 0;
|
| +
|
| + /**
|
| + * The policy used to determine which pieces of data to remove from the cache.
|
| + */
|
| + final CacheRetentionPolicy _retentionPolicy;
|
| +
|
| + /**
|
| + * A table mapping the sources belonging to this partition to the information
|
| + * known about those sources.
|
| + */
|
| + HashMap<Source, SourceEntry> _sourceMap = new HashMap<Source, SourceEntry>();
|
| +
|
| + /**
|
| + * A list containing the most recently accessed sources with the most recently
|
| + * used at the end of the list. When more sources are added than the maximum
|
| + * allowed then the least recently used source will be removed and will have
|
| + * it's cached AST structure flushed.
|
| + */
|
| + List<Source> _recentlyUsed;
|
| +
|
| + /**
|
| + * Initialize a newly created cache to maintain at most [maxCacheSize] AST
|
| + * structures in the cache. The cache is owned by the give [context], and the
|
| + * [retentionPolicy] will be used to determine which pieces of data to remove
|
| + * from the cache.
|
| + */
|
| + CachePartition(this.context, this._maxCacheSize, this._retentionPolicy) {
|
| + _recentlyUsed = new List<Source>();
|
| + }
|
| +
|
| + /**
|
| + * Return the number of entries in this partition that have an AST associated
|
| + * with them.
|
| + */
|
| + int get astSize {
|
| + int astSize = 0;
|
| + int count = _recentlyUsed.length;
|
| + for (int i = 0; i < count; i++) {
|
| + Source source = _recentlyUsed[i];
|
| + SourceEntry sourceEntry = _sourceMap[source];
|
| + if (sourceEntry is DartEntry) {
|
| + if (sourceEntry.anyParsedCompilationUnit != null) {
|
| + astSize++;
|
| + }
|
| + } else if (sourceEntry is HtmlEntry) {
|
| + if (sourceEntry.anyParsedUnit != null) {
|
| + astSize++;
|
| + }
|
| + }
|
| + }
|
| + return astSize;
|
| + }
|
| +
|
| + /**
|
| + * Return a table mapping the sources known to the context to the information
|
| + * known about the source.
|
| + *
|
| + * <b>Note:</b> This method is only visible for use by [AnalysisCache] and
|
| + * should not be used for any other purpose.
|
| + */
|
| + Map<Source, SourceEntry> get map => _sourceMap;
|
| +
|
| + /**
|
| + * Set the maximum size of the cache to the given [size].
|
| + */
|
| + void set maxCacheSize(int size) {
|
| + _maxCacheSize = size;
|
| + while (_recentlyUsed.length > _maxCacheSize) {
|
| + if (!_flushAstFromCache()) {
|
| + break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Record that the AST associated with the given source was just read from the
|
| + * cache.
|
| + */
|
| + void accessedAst(Source source) {
|
| + if (_recentlyUsed.remove(source)) {
|
| + _recentlyUsed.add(source);
|
| + return;
|
| + }
|
| + while (_recentlyUsed.length >= _maxCacheSize) {
|
| + if (!_flushAstFromCache()) {
|
| + break;
|
| + }
|
| + }
|
| + _recentlyUsed.add(source);
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the given [source] is contained in this partition.
|
| + */
|
| + bool contains(Source source);
|
| +
|
| + /**
|
| + * Return the entry associated with the given [source].
|
| + */
|
| + SourceEntry get(Source source) => _sourceMap[source];
|
| +
|
| + /**
|
| + * Return an iterator returning all of the map entries mapping sources to
|
| + * cache entries.
|
| + */
|
| + MapIterator<Source, SourceEntry> iterator() =>
|
| + new SingleMapIterator<Source, SourceEntry>(_sourceMap);
|
| +
|
| + /**
|
| + * Associate the given [entry] with the given [source].
|
| + */
|
| + void put(Source source, SourceEntry entry) {
|
| + entry.fixExceptionState();
|
| + _sourceMap[source] = entry;
|
| + }
|
| +
|
| + /**
|
| + * Remove all information related to the given [source] from this partition.
|
| + * Return the entry associated with the source, or `null` if there was cache
|
| + * entry for the source.
|
| + */
|
| + SourceEntry remove(Source source) {
|
| + _recentlyUsed.remove(source);
|
| + return _sourceMap.remove(source);
|
| + }
|
| +
|
| + /**
|
| + * Record that the AST associated with the given [source] was just removed
|
| + * from the cache.
|
| + */
|
| + void removedAst(Source source) {
|
| + _recentlyUsed.remove(source);
|
| + }
|
| +
|
| + /**
|
| + * Return the number of sources that are mapped to cache entries.
|
| + */
|
| + int size() => _sourceMap.length;
|
| +
|
| + /**
|
| + * Record that the AST associated with the given [source] was just stored to
|
| + * the cache.
|
| + */
|
| + void storedAst(Source source) {
|
| + if (_recentlyUsed.contains(source)) {
|
| + return;
|
| + }
|
| + while (_recentlyUsed.length >= _maxCacheSize) {
|
| + if (!_flushAstFromCache()) {
|
| + break;
|
| + }
|
| + }
|
| + _recentlyUsed.add(source);
|
| + }
|
| +
|
| + /**
|
| + * Attempt to flush one AST structure from the cache. Return `true` if a
|
| + * structure was flushed.
|
| + */
|
| + bool _flushAstFromCache() {
|
| + Source removedSource = _removeAstToFlush();
|
| + if (removedSource == null) {
|
| + return false;
|
| + }
|
| + SourceEntry sourceEntry = _sourceMap[removedSource];
|
| + if (sourceEntry is HtmlEntry) {
|
| + HtmlEntry htmlEntry = sourceEntry;
|
| + htmlEntry.flushAstStructures();
|
| + } else if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + dartEntry.flushAstStructures();
|
| + }
|
| + return true;
|
| + }
|
| +
|
| + /**
|
| + * Remove and return one source from the list of recently used sources whose
|
| + * AST structure can be flushed from the cache. The source that will be
|
| + * returned will be the source that has been unreferenced for the longest
|
| + * period of time but that is not a priority for analysis.
|
| + */
|
| + Source _removeAstToFlush() {
|
| + int sourceToRemove = -1;
|
| + for (int i = 0; i < _recentlyUsed.length; i++) {
|
| + Source source = _recentlyUsed[i];
|
| + RetentionPriority priority =
|
| + _retentionPolicy.getAstPriority(source, _sourceMap[source]);
|
| + if (priority == RetentionPriority.LOW) {
|
| + return _recentlyUsed.removeAt(i);
|
| + } else if (priority == RetentionPriority.MEDIUM && sourceToRemove < 0) {
|
| + sourceToRemove = i;
|
| + }
|
| + }
|
| + if (sourceToRemove < 0) {
|
| + // This happens if the retention policy returns a priority of HIGH for all
|
| + // of the sources that have been recently used. This is the case, for
|
| + // example, when the list of priority sources is bigger than the current
|
| + // cache size.
|
| + return null;
|
| + }
|
| + return _recentlyUsed.removeAt(sourceToRemove);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An object used to determine how important it is for data to be retained in
|
| + * the analysis cache.
|
| + */
|
| +abstract class CacheRetentionPolicy {
|
| + /**
|
| + * Return the priority of retaining the AST structure for the given [source].
|
| + */
|
| + RetentionPriority getAstPriority(Source source, SourceEntry sourceEntry);
|
| +}
|
| +
|
| +/**
|
| + * The possible states of cached data.
|
| + */
|
| +class CacheState extends Enum<CacheState> {
|
| + /**
|
| + * The data is not in the cache and the last time an attempt was made to
|
| + * compute the data an exception occurred, making it pointless to attempt to
|
| + * compute the data again.
|
| + *
|
| + * Valid Transitions:
|
| + * * [INVALID] if a source was modified that might cause the data to be
|
| + * computable
|
| + */
|
| + static const CacheState ERROR = const CacheState('ERROR', 0);
|
| +
|
| + /**
|
| + * The data is not in the cache because it was flushed from the cache in order
|
| + * to control memory usage. If the data is recomputed, results do not need to
|
| + * be reported.
|
| + *
|
| + * Valid Transitions:
|
| + * * [IN_PROCESS] if the data is being recomputed
|
| + * * [INVALID] if a source was modified that causes the data to need to be
|
| + * recomputed
|
| + */
|
| + static const CacheState FLUSHED = const CacheState('FLUSHED', 1);
|
| +
|
| + /**
|
| + * The data might or might not be in the cache but is in the process of being
|
| + * recomputed.
|
| + *
|
| + * Valid Transitions:
|
| + * * [ERROR] if an exception occurred while trying to compute the data
|
| + * * [VALID] if the data was successfully computed and stored in the cache
|
| + */
|
| + static const CacheState IN_PROCESS = const CacheState('IN_PROCESS', 2);
|
| +
|
| + /**
|
| + * The data is not in the cache and needs to be recomputed so that results can
|
| + * be reported.
|
| + *
|
| + * Valid Transitions:
|
| + * * [IN_PROCESS] if an attempt is being made to recompute the data
|
| + */
|
| + static const CacheState INVALID = const CacheState('INVALID', 3);
|
| +
|
| + /**
|
| + * The data is in the cache and up-to-date.
|
| + *
|
| + * Valid Transitions:
|
| + * * [FLUSHED] if the data is removed in order to manage memory usage
|
| + * * [INVALID] if a source was modified in such a way as to invalidate the
|
| + * previous data
|
| + */
|
| + static const CacheState VALID = const CacheState('VALID', 4);
|
| +
|
| + static const List<CacheState> values = const [
|
| + ERROR,
|
| + FLUSHED,
|
| + IN_PROCESS,
|
| + INVALID,
|
| + VALID
|
| + ];
|
| +
|
| + const CacheState(String name, int ordinal) : super(name, ordinal);
|
| +}
|
| +
|
| +/**
|
| + * An object that represents a change to the analysis results associated with a
|
| + * given source.
|
| + */
|
| +abstract class ChangeNotice implements AnalysisErrorInfo {
|
| + /**
|
| + * The parsed, but maybe not resolved Dart AST that changed as a result of
|
| + * the analysis, or `null` if the AST was not changed.
|
| + */
|
| + CompilationUnit get parsedDartUnit;
|
| +
|
| + /**
|
| + * The fully resolved Dart AST that changed as a result of the analysis, or
|
| + * `null` if the AST was not changed.
|
| + */
|
| + CompilationUnit get resolvedDartUnit;
|
| +
|
| + /**
|
| + * The fully resolved HTML AST that changed as a result of the analysis, or
|
| + * `null` if the AST was not changed.
|
| + */
|
| + @deprecated
|
| + ht.HtmlUnit get resolvedHtmlUnit;
|
| +
|
| + /**
|
| + * Return the source for which the result is being reported.
|
| + */
|
| + Source get source;
|
| +}
|
| +
|
| +/**
|
| + * An implementation of a [ChangeNotice].
|
| + */
|
| +class ChangeNoticeImpl implements ChangeNotice {
|
| + /**
|
| + * An empty list of change notices.
|
| + */
|
| + static const List<ChangeNoticeImpl> EMPTY_LIST = const <ChangeNoticeImpl>[];
|
| +
|
| + /**
|
| + * The source for which the result is being reported.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The parsed, but maybe not resolved Dart AST that changed as a result of
|
| + * the analysis, or `null` if the AST was not changed.
|
| + */
|
| + CompilationUnit parsedDartUnit;
|
| +
|
| + /**
|
| + * The fully resolved Dart AST that changed as a result of the analysis, or
|
| + * `null` if the AST was not changed.
|
| + */
|
| + CompilationUnit resolvedDartUnit;
|
| +
|
| + /**
|
| + * The fully resolved HTML AST that changed as a result of the analysis, or
|
| + * `null` if the AST was not changed.
|
| + */
|
| + @deprecated
|
| + ht.HtmlUnit resolvedHtmlUnit;
|
| +
|
| + /**
|
| + * The errors that changed as a result of the analysis, or `null` if errors
|
| + * were not changed.
|
| + */
|
| + List<AnalysisError> _errors;
|
| +
|
| + /**
|
| + * The line information associated with the source, or `null` if errors were
|
| + * not changed.
|
| + */
|
| + LineInfo _lineInfo;
|
| +
|
| + /**
|
| + * Initialize a newly created notice associated with the given source.
|
| + *
|
| + * @param source the source for which the change is being reported
|
| + */
|
| + ChangeNoticeImpl(this.source);
|
| +
|
| + @override
|
| + List<AnalysisError> get errors => _errors;
|
| +
|
| + @override
|
| + LineInfo get lineInfo => _lineInfo;
|
| +
|
| + /**
|
| + * Set the errors that changed as a result of the analysis to the given
|
| + * [errors] and set the line information to the given [lineInfo].
|
| + */
|
| + void setErrors(List<AnalysisError> errors, LineInfo lineInfo) {
|
| + this._errors = errors;
|
| + this._lineInfo = lineInfo;
|
| + if (lineInfo == null) {
|
| + AnalysisEngine.instance.logger.logInformation("No line info: $source",
|
| + new CaughtException(new AnalysisException(), null));
|
| + }
|
| + }
|
| +
|
| + @override
|
| + String toString() => "Changes for ${source.fullName}";
|
| +}
|
| +
|
| +/**
|
| + * An indication of which sources have been added, changed, removed, or deleted.
|
| + * In the case of a changed source, there are multiple ways of indicating the
|
| + * nature of the change.
|
| + *
|
| + * No source should be added to the change set more than once, either with the
|
| + * same or a different kind of change. It does not make sense, for example, for
|
| + * a source to be both added and removed, and it is redundant for a source to be
|
| + * marked as changed in its entirety and changed in some specific range.
|
| + */
|
| +class ChangeSet {
|
| + /**
|
| + * A list containing the sources that have been added.
|
| + */
|
| + final List<Source> addedSources = new List<Source>();
|
| +
|
| + /**
|
| + * A list containing the sources that have been changed.
|
| + */
|
| + final List<Source> changedSources = new List<Source>();
|
| +
|
| + /**
|
| + * A table mapping the sources whose content has been changed to the current
|
| + * content of those sources.
|
| + */
|
| + HashMap<Source, String> _changedContent = new HashMap<Source, String>();
|
| +
|
| + /**
|
| + * A table mapping the sources whose content has been changed within a single
|
| + * range to the current content of those sources and information about the
|
| + * affected range.
|
| + */
|
| + final HashMap<Source, ChangeSet_ContentChange> changedRanges =
|
| + new HashMap<Source, ChangeSet_ContentChange>();
|
| +
|
| + /**
|
| + * A list containing the sources that have been removed.
|
| + */
|
| + final List<Source> removedSources = new List<Source>();
|
| +
|
| + /**
|
| + * A list containing the source containers specifying additional sources that
|
| + * have been removed.
|
| + */
|
| + final List<SourceContainer> removedContainers = new List<SourceContainer>();
|
| +
|
| + /**
|
| + * A list containing the sources that have been deleted.
|
| + */
|
| + final List<Source> deletedSources = new List<Source>();
|
| +
|
| + /**
|
| + * Return a table mapping the sources whose content has been changed to the
|
| + * current content of those sources.
|
| + */
|
| + Map<Source, String> get changedContents => _changedContent;
|
| +
|
| + /**
|
| + * Return `true` if this change set does not contain any changes.
|
| + */
|
| + bool get isEmpty => addedSources.isEmpty &&
|
| + changedSources.isEmpty &&
|
| + _changedContent.isEmpty &&
|
| + changedRanges.isEmpty &&
|
| + removedSources.isEmpty &&
|
| + removedContainers.isEmpty &&
|
| + deletedSources.isEmpty;
|
| +
|
| + /**
|
| + * Record that the specified [source] has been added and that its content is
|
| + * the default contents of the source.
|
| + */
|
| + void addedSource(Source source) {
|
| + addedSources.add(source);
|
| + }
|
| +
|
| + /**
|
| + * Record that the specified [source] has been changed and that its content is
|
| + * the given [contents].
|
| + */
|
| + void changedContent(Source source, String contents) {
|
| + _changedContent[source] = contents;
|
| + }
|
| +
|
| + /**
|
| + * Record that the specified [source] has been changed and that its content is
|
| + * the given [contents]. The [offset] is the offset into the current contents.
|
| + * The [oldLength] is the number of characters in the original contents that
|
| + * were replaced. The [newLength] is the number of characters in the
|
| + * replacement text.
|
| + */
|
| + void changedRange(Source source, String contents, int offset, int oldLength,
|
| + int newLength) {
|
| + changedRanges[source] =
|
| + new ChangeSet_ContentChange(contents, offset, oldLength, newLength);
|
| + }
|
| +
|
| + /**
|
| + * Record that the specified [source] has been changed. If the content of the
|
| + * source was previously overridden, this has no effect (the content remains
|
| + * overridden). To cancel (or change) the override, use [changedContent]
|
| + * instead.
|
| + */
|
| + void changedSource(Source source) {
|
| + changedSources.add(source);
|
| + }
|
| +
|
| + /**
|
| + * Record that the specified [source] has been deleted.
|
| + */
|
| + void deletedSource(Source source) {
|
| + deletedSources.add(source);
|
| + }
|
| +
|
| + /**
|
| + * Record that the specified source [container] has been removed.
|
| + */
|
| + void removedContainer(SourceContainer container) {
|
| + if (container != null) {
|
| + removedContainers.add(container);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Record that the specified [source] has been removed.
|
| + */
|
| + void removedSource(Source source) {
|
| + if (source != null) {
|
| + removedSources.add(source);
|
| + }
|
| + }
|
| +
|
| + @override
|
| + String toString() {
|
| + StringBuffer buffer = new StringBuffer();
|
| + bool needsSeparator =
|
| + _appendSources(buffer, addedSources, false, "addedSources");
|
| + needsSeparator = _appendSources(
|
| + buffer, changedSources, needsSeparator, "changedSources");
|
| + needsSeparator = _appendSources2(
|
| + buffer, _changedContent, needsSeparator, "changedContent");
|
| + needsSeparator =
|
| + _appendSources2(buffer, changedRanges, needsSeparator, "changedRanges");
|
| + needsSeparator = _appendSources(
|
| + buffer, deletedSources, needsSeparator, "deletedSources");
|
| + needsSeparator = _appendSources(
|
| + buffer, removedSources, needsSeparator, "removedSources");
|
| + int count = removedContainers.length;
|
| + if (count > 0) {
|
| + if (removedSources.isEmpty) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("removed: from ");
|
| + buffer.write(count);
|
| + buffer.write(" containers");
|
| + } else {
|
| + buffer.write(", and more from ");
|
| + buffer.write(count);
|
| + buffer.write(" containers");
|
| + }
|
| + }
|
| + return buffer.toString();
|
| + }
|
| +
|
| + /**
|
| + * Append the given [sources] to the given [buffer], prefixed with the given
|
| + * [label] and a separator if [needsSeparator] is `true`. Return `true` if
|
| + * future lists of sources will need a separator.
|
| + */
|
| + bool _appendSources(StringBuffer buffer, List<Source> sources,
|
| + bool needsSeparator, String label) {
|
| + if (sources.isEmpty) {
|
| + return needsSeparator;
|
| + }
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write(label);
|
| + String prefix = " ";
|
| + for (Source source in sources) {
|
| + buffer.write(prefix);
|
| + buffer.write(source.fullName);
|
| + prefix = ", ";
|
| + }
|
| + return true;
|
| + }
|
| +
|
| + /**
|
| + * Append the given [sources] to the given [builder], prefixed with the given
|
| + * [label] and a separator if [needsSeparator] is `true`. Return `true` if
|
| + * future lists of sources will need a separator.
|
| + */
|
| + bool _appendSources2(StringBuffer buffer, HashMap<Source, dynamic> sources,
|
| + bool needsSeparator, String label) {
|
| + if (sources.isEmpty) {
|
| + return needsSeparator;
|
| + }
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write(label);
|
| + String prefix = " ";
|
| + for (Source source in sources.keys.toSet()) {
|
| + buffer.write(prefix);
|
| + buffer.write(source.fullName);
|
| + prefix = ", ";
|
| + }
|
| + return true;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * A change to the content of a source.
|
| + */
|
| +class ChangeSet_ContentChange {
|
| + /**
|
| + * The new contents of the source.
|
| + */
|
| + final String contents;
|
| +
|
| + /**
|
| + * The offset into the current contents.
|
| + */
|
| + final int offset;
|
| +
|
| + /**
|
| + * The number of characters in the original contents that were replaced
|
| + */
|
| + final int oldLength;
|
| +
|
| + /**
|
| + * The number of characters in the replacement text.
|
| + */
|
| + final int newLength;
|
| +
|
| + /**
|
| + * Initialize a newly created change object to represent a change to the
|
| + * content of a source. The [contents] is the new contents of the source. The
|
| + * [offse] ist the offset into the current contents. The [oldLength] is the
|
| + * number of characters in the original contents that were replaced. The
|
| + * [newLength] is the number of characters in the replacement text.
|
| + */
|
| + ChangeSet_ContentChange(
|
| + this.contents, this.offset, this.oldLength, this.newLength);
|
| +}
|
| +
|
| +/**
|
| + * [ComputedResult] describes a value computed for a [ResultDescriptor].
|
| + */
|
| +class ComputedResult<V> {
|
| + /**
|
| + * The context in which the value was computed.
|
| + */
|
| + final AnalysisContext context;
|
| +
|
| + /**
|
| + * The descriptor of the result which was computed.
|
| + */
|
| + final ResultDescriptor<V> descriptor;
|
| +
|
| + /**
|
| + * The target for which the result was computed.
|
| + */
|
| + final AnalysisTarget target;
|
| +
|
| + /**
|
| + * The computed value.
|
| + */
|
| + final V value;
|
| +
|
| + ComputedResult(this.context, this.descriptor, this.target, this.value);
|
| +
|
| + @override
|
| + String toString() => '$descriptor of $target in $context';
|
| +}
|
| +
|
| +/**
|
| + * A pair containing a library and a list of the (source, entry) pairs for
|
| + * compilation units in the library.
|
| + */
|
| +class CycleBuilder_LibraryPair {
|
| + /**
|
| + * The library containing the compilation units.
|
| + */
|
| + ResolvableLibrary library;
|
| +
|
| + /**
|
| + * The (source, entry) pairs representing the compilation units in the
|
| + * library.
|
| + */
|
| + List<CycleBuilder_SourceEntryPair> entryPairs;
|
| +
|
| + /**
|
| + * Initialize a newly created pair from the given [library] and [entryPairs].
|
| + */
|
| + CycleBuilder_LibraryPair(this.library, this.entryPairs);
|
| +}
|
| +
|
| +/**
|
| + * A pair containing a source and the cache entry associated with that source.
|
| + * They are used to reduce the number of times an entry must be looked up in the
|
| + * cache.
|
| + */
|
| +class CycleBuilder_SourceEntryPair {
|
| + /**
|
| + * The source associated with the entry.
|
| + */
|
| + Source source;
|
| +
|
| + /**
|
| + * The entry associated with the source.
|
| + */
|
| + DartEntry entry;
|
| +
|
| + /**
|
| + * Initialize a newly created pair from the given [source] and [entry].
|
| + */
|
| + CycleBuilder_SourceEntryPair(this.source, this.entry);
|
| +}
|
| +
|
| +/**
|
| + * The information cached by an analysis context about an individual Dart file.
|
| + */
|
| +class DartEntry extends SourceEntry {
|
| + /**
|
| + * The data descriptor representing the element model representing a single
|
| + * compilation unit. This model is incomplete and should not be used except as
|
| + * input to another task.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> BUILT_ELEMENT =
|
| + new DataDescriptor<List<AnalysisError>>("DartEntry.BUILT_ELEMENT");
|
| +
|
| + /**
|
| + * The data descriptor representing the AST structure after the element model
|
| + * has been built (and declarations are resolved) but before other resolution
|
| + * has been performed.
|
| + */
|
| + static final DataDescriptor<CompilationUnit> BUILT_UNIT =
|
| + new DataDescriptor<CompilationUnit>("DartEntry.BUILT_UNIT");
|
| +
|
| + /**
|
| + * The data descriptor representing the list of libraries that contain this
|
| + * compilation unit.
|
| + */
|
| + static final DataDescriptor<List<Source>> CONTAINING_LIBRARIES =
|
| + new DataDescriptor<List<Source>>(
|
| + "DartEntry.CONTAINING_LIBRARIES", Source.EMPTY_LIST);
|
| +
|
| + /**
|
| + * The data descriptor representing the library element for the library. This
|
| + * data is only available for Dart files that are the defining compilation
|
| + * unit of a library.
|
| + */
|
| + static final DataDescriptor<LibraryElement> ELEMENT =
|
| + new DataDescriptor<LibraryElement>("DartEntry.ELEMENT");
|
| +
|
| + /**
|
| + * The data descriptor representing the list of exported libraries. This data
|
| + * is only available for Dart files that are the defining compilation unit of
|
| + * a library.
|
| + */
|
| + static final DataDescriptor<List<Source>> EXPORTED_LIBRARIES =
|
| + new DataDescriptor<List<Source>>(
|
| + "DartEntry.EXPORTED_LIBRARIES", Source.EMPTY_LIST);
|
| +
|
| + /**
|
| + * The data descriptor representing the hints resulting from auditing the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> HINTS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "DartEntry.HINTS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the list of imported libraries. This data
|
| + * is only available for Dart files that are the defining compilation unit of
|
| + * a library.
|
| + */
|
| + static final DataDescriptor<List<Source>> IMPORTED_LIBRARIES =
|
| + new DataDescriptor<List<Source>>(
|
| + "DartEntry.IMPORTED_LIBRARIES", Source.EMPTY_LIST);
|
| +
|
| + /**
|
| + * The data descriptor representing the list of included parts. This data is
|
| + * only available for Dart files that are the defining compilation unit of a
|
| + * library.
|
| + */
|
| + static final DataDescriptor<List<Source>> INCLUDED_PARTS =
|
| + new DataDescriptor<List<Source>>(
|
| + "DartEntry.INCLUDED_PARTS", Source.EMPTY_LIST);
|
| +
|
| + /**
|
| + * The data descriptor representing the client flag. This data is only
|
| + * available for Dart files that are the defining compilation unit of a
|
| + * library.
|
| + */
|
| + static final DataDescriptor<bool> IS_CLIENT =
|
| + new DataDescriptor<bool>("DartEntry.IS_CLIENT", false);
|
| +
|
| + /**
|
| + * The data descriptor representing the launchable flag. This data is only
|
| + * available for Dart files that are the defining compilation unit of a
|
| + * library.
|
| + */
|
| + static final DataDescriptor<bool> IS_LAUNCHABLE =
|
| + new DataDescriptor<bool>("DartEntry.IS_LAUNCHABLE", false);
|
| +
|
| + /**
|
| + * The data descriptor representing lint warnings resulting from auditing the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> LINTS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "DartEntry.LINTS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from parsing the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> PARSE_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "DartEntry.PARSE_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the parsed AST structure.
|
| + */
|
| + static final DataDescriptor<CompilationUnit> PARSED_UNIT =
|
| + new DataDescriptor<CompilationUnit>("DartEntry.PARSED_UNIT");
|
| +
|
| + /**
|
| + * The data descriptor representing the public namespace of the library. This
|
| + * data is only available for Dart files that are the defining compilation
|
| + * unit of a library.
|
| + */
|
| + static final DataDescriptor<Namespace> PUBLIC_NAMESPACE =
|
| + new DataDescriptor<Namespace>("DartEntry.PUBLIC_NAMESPACE");
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from resolving the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> RESOLUTION_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "DartEntry.RESOLUTION_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the resolved AST structure.
|
| + */
|
| + static final DataDescriptor<CompilationUnit> RESOLVED_UNIT =
|
| + new DataDescriptor<CompilationUnit>("DartEntry.RESOLVED_UNIT");
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from scanning the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> SCAN_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "DartEntry.SCAN_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the source kind.
|
| + */
|
| + static final DataDescriptor<SourceKind> SOURCE_KIND =
|
| + new DataDescriptor<SourceKind>(
|
| + "DartEntry.SOURCE_KIND", SourceKind.UNKNOWN);
|
| +
|
| + /**
|
| + * The data descriptor representing the token stream.
|
| + */
|
| + static final DataDescriptor<Token> TOKEN_STREAM =
|
| + new DataDescriptor<Token>("DartEntry.TOKEN_STREAM");
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from verifying the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> VERIFICATION_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "DartEntry.VERIFICATION_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The list of libraries that contain this compilation unit. The list will be
|
| + * empty if there are no known libraries that contain this compilation unit.
|
| + */
|
| + List<Source> _containingLibraries = new List<Source>();
|
| +
|
| + /**
|
| + * The information known as a result of resolving this compilation unit as
|
| + * part of the library that contains this unit. This field will never be
|
| + * `null`.
|
| + */
|
| + ResolutionState _resolutionState = new ResolutionState();
|
| +
|
| + /**
|
| + * Return all of the errors associated with the compilation unit that are
|
| + * currently cached.
|
| + */
|
| + List<AnalysisError> get allErrors {
|
| + List<AnalysisError> errors = new List<AnalysisError>();
|
| + errors.addAll(super.allErrors);
|
| + errors.addAll(getValue(SCAN_ERRORS));
|
| + errors.addAll(getValue(PARSE_ERRORS));
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + errors.addAll(state.getValue(RESOLUTION_ERRORS));
|
| + errors.addAll(state.getValue(VERIFICATION_ERRORS));
|
| + errors.addAll(state.getValue(HINTS));
|
| + errors.addAll(state.getValue(LINTS));
|
| + state = state._nextState;
|
| + }
|
| + if (errors.length == 0) {
|
| + return AnalysisError.NO_ERRORS;
|
| + }
|
| + return errors;
|
| + }
|
| +
|
| + /**
|
| + * Return a valid parsed compilation unit, either an unresolved AST structure
|
| + * or the result of resolving the AST structure in the context of some
|
| + * library, or `null` if there is no parsed compilation unit available.
|
| + */
|
| + CompilationUnit get anyParsedCompilationUnit {
|
| + if (getState(PARSED_UNIT) == CacheState.VALID) {
|
| + return getValue(PARSED_UNIT);
|
| + }
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (state.getState(BUILT_UNIT) == CacheState.VALID) {
|
| + return state.getValue(BUILT_UNIT);
|
| + }
|
| + state = state._nextState;
|
| + }
|
| +
|
| + return anyResolvedCompilationUnit;
|
| + }
|
| +
|
| + /**
|
| + * Return the result of resolving the compilation unit as part of any library,
|
| + * or `null` if there is no cached resolved compilation unit.
|
| + */
|
| + CompilationUnit get anyResolvedCompilationUnit {
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (state.getState(RESOLVED_UNIT) == CacheState.VALID) {
|
| + return state.getValue(RESOLVED_UNIT);
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * The libraries that are known to contain this part.
|
| + */
|
| + List<Source> get containingLibraries => _containingLibraries;
|
| +
|
| + /**
|
| + * Set the list of libraries that contain this compilation unit to contain
|
| + * only the given [librarySource]. This method should only be invoked on
|
| + * entries that represent a library.
|
| + */
|
| + void set containingLibrary(Source librarySource) {
|
| + _containingLibraries.clear();
|
| + _containingLibraries.add(librarySource);
|
| + }
|
| +
|
| + @override
|
| + List<DataDescriptor> get descriptors {
|
| + List<DataDescriptor> result = super.descriptors;
|
| + result.addAll(<DataDescriptor>[
|
| + DartEntry.SOURCE_KIND,
|
| + DartEntry.CONTAINING_LIBRARIES,
|
| + DartEntry.PARSE_ERRORS,
|
| + DartEntry.PARSED_UNIT,
|
| + DartEntry.SCAN_ERRORS,
|
| + DartEntry.SOURCE_KIND,
|
| + DartEntry.TOKEN_STREAM
|
| + ]);
|
| + SourceKind kind = getValue(DartEntry.SOURCE_KIND);
|
| + if (kind == SourceKind.LIBRARY) {
|
| + result.addAll(<DataDescriptor>[
|
| + DartEntry.ELEMENT,
|
| + DartEntry.EXPORTED_LIBRARIES,
|
| + DartEntry.IMPORTED_LIBRARIES,
|
| + DartEntry.INCLUDED_PARTS,
|
| + DartEntry.IS_CLIENT,
|
| + DartEntry.IS_LAUNCHABLE,
|
| + DartEntry.PUBLIC_NAMESPACE
|
| + ]);
|
| + }
|
| + return result;
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if this entry has an AST structure that can be resolved, even
|
| + * if it needs to be copied. Returning `true` implies that the method
|
| + * [resolvableCompilationUnit] will return a non-`null` result.
|
| + */
|
| + bool get hasResolvableCompilationUnit {
|
| + if (getState(PARSED_UNIT) == CacheState.VALID) {
|
| + return true;
|
| + }
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (state.getState(BUILT_UNIT) == CacheState.VALID ||
|
| + state.getState(RESOLVED_UNIT) == CacheState.VALID) {
|
| + return true;
|
| + }
|
| + state = state._nextState;
|
| + }
|
| +
|
| + return false;
|
| + }
|
| +
|
| + @override
|
| + SourceKind get kind => getValue(SOURCE_KIND);
|
| +
|
| + /**
|
| + * The library sources containing the receiver's source.
|
| + */
|
| + List<Source> get librariesContaining {
|
| + ResolutionState state = _resolutionState;
|
| + List<Source> result = new List<Source>();
|
| + while (state != null) {
|
| + if (state._librarySource != null) {
|
| + result.add(state._librarySource);
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + return result;
|
| + }
|
| +
|
| + /**
|
| + * Get a list of all the library-dependent descriptors for which values may
|
| + * be stored in this SourceEntry.
|
| + */
|
| + List<DataDescriptor> get libraryDescriptors {
|
| + return <DataDescriptor>[
|
| + DartEntry.BUILT_ELEMENT,
|
| + DartEntry.BUILT_UNIT,
|
| + DartEntry.RESOLUTION_ERRORS,
|
| + DartEntry.RESOLVED_UNIT,
|
| + DartEntry.VERIFICATION_ERRORS,
|
| + DartEntry.HINTS,
|
| + DartEntry.LINTS
|
| + ];
|
| + }
|
| +
|
| + /**
|
| + * A compilation unit that has not been accessed by any other client and can
|
| + * therefore safely be modified by the reconciler, or `null` if the source has
|
| + * not been parsed.
|
| + */
|
| + CompilationUnit get resolvableCompilationUnit {
|
| + if (getState(PARSED_UNIT) == CacheState.VALID) {
|
| + CompilationUnit unit = getValue(PARSED_UNIT);
|
| + setState(PARSED_UNIT, CacheState.FLUSHED);
|
| + return unit;
|
| + }
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (state.getState(BUILT_UNIT) == CacheState.VALID) {
|
| + // TODO(brianwilkerson) We're cloning the structure to remove any
|
| + // previous resolution data, but I'm not sure that's necessary.
|
| + return state.getValue(BUILT_UNIT).accept(new AstCloner());
|
| + }
|
| + if (state.getState(RESOLVED_UNIT) == CacheState.VALID) {
|
| + return state.getValue(RESOLVED_UNIT).accept(new AstCloner());
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Add the given [librarySource] to the list of libraries that contain this
|
| + * part. This method should only be invoked on entries that represent a part.
|
| + */
|
| + void addContainingLibrary(Source librarySource) {
|
| + _containingLibraries.add(librarySource);
|
| + }
|
| +
|
| + /**
|
| + * Flush any AST structures being maintained by this entry.
|
| + */
|
| + void flushAstStructures() {
|
| + _flush(TOKEN_STREAM);
|
| + _flush(PARSED_UNIT);
|
| + _resolutionState.flushAstStructures();
|
| + }
|
| +
|
| + /**
|
| + * Return the state of the data represented by the given [descriptor] in the
|
| + * context of the given [librarySource].
|
| + */
|
| + CacheState getStateInLibrary(
|
| + DataDescriptor descriptor, Source librarySource) {
|
| + if (!_isValidLibraryDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (librarySource == state._librarySource) {
|
| + return state.getState(descriptor);
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + return CacheState.INVALID;
|
| + }
|
| +
|
| + /**
|
| + * Return the value of the data represented by the given [descriptor] in the
|
| + * context of the given [librarySource], or `null` if the data represented by
|
| + * the descriptor is not in the cache.
|
| + */
|
| + Object getValueInLibrary(DataDescriptor descriptor, Source librarySource) {
|
| + if (!_isValidLibraryDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (librarySource == state._librarySource) {
|
| + return state.getValue(descriptor);
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + return descriptor.defaultValue;
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the data represented by the given [descriptor] is marked
|
| + * as being invalid. If the descriptor represents library-specific data then
|
| + * this method will return `true` if the data associated with any library it
|
| + * marked as invalid.
|
| + */
|
| + bool hasInvalidData(DataDescriptor descriptor) {
|
| + if (_isValidDescriptor(descriptor)) {
|
| + return getState(descriptor) == CacheState.INVALID;
|
| + } else if (_isValidLibraryDescriptor(descriptor)) {
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (state.getState(descriptor) == CacheState.INVALID) {
|
| + return true;
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + @override
|
| + void invalidateAllInformation() {
|
| + super.invalidateAllInformation();
|
| + setState(SCAN_ERRORS, CacheState.INVALID);
|
| + setState(TOKEN_STREAM, CacheState.INVALID);
|
| + setState(SOURCE_KIND, CacheState.INVALID);
|
| + setState(PARSE_ERRORS, CacheState.INVALID);
|
| + setState(PARSED_UNIT, CacheState.INVALID);
|
| + _discardCachedResolutionInformation(true);
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the resolution information associated with the
|
| + * compilation unit. The flag [invalidateUris] should be `true` if the cached
|
| + * results of converting URIs to source files should also be invalidated.
|
| + */
|
| + void invalidateAllResolutionInformation(bool invalidateUris) {
|
| + if (getState(PARSED_UNIT) == CacheState.FLUSHED) {
|
| + ResolutionState state = _resolutionState;
|
| + while (state != null) {
|
| + if (state.getState(BUILT_UNIT) == CacheState.VALID) {
|
| + CompilationUnit unit = state.getValue(BUILT_UNIT);
|
| + setValue(PARSED_UNIT, unit.accept(new AstCloner()));
|
| + break;
|
| + } else if (state.getState(RESOLVED_UNIT) == CacheState.VALID) {
|
| + CompilationUnit unit = state.getValue(RESOLVED_UNIT);
|
| + setValue(PARSED_UNIT, unit.accept(new AstCloner()));
|
| + break;
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + }
|
| + _discardCachedResolutionInformation(invalidateUris);
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the parse and resolution information associated with
|
| + * this source.
|
| + */
|
| + void invalidateParseInformation() {
|
| + setState(SOURCE_KIND, CacheState.INVALID);
|
| + setState(PARSE_ERRORS, CacheState.INVALID);
|
| + setState(PARSED_UNIT, CacheState.INVALID);
|
| + _containingLibraries.clear();
|
| + _discardCachedResolutionInformation(true);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to build the element
|
| + * model for the source represented by this entry in the context of the given
|
| + * [library]. This will set the state of all resolution-based information as
|
| + * being in error, but will not change the state of any parse results.
|
| + */
|
| + void recordBuildElementErrorInLibrary(
|
| + Source librarySource, CaughtException exception) {
|
| + setStateInLibrary(BUILT_ELEMENT, librarySource, CacheState.ERROR);
|
| + setStateInLibrary(BUILT_UNIT, librarySource, CacheState.ERROR);
|
| + recordResolutionErrorInLibrary(librarySource, exception);
|
| + }
|
| +
|
| + @override
|
| + void recordContentError(CaughtException exception) {
|
| + super.recordContentError(exception);
|
| + recordScanError(exception);
|
| + }
|
| +
|
| + /**
|
| + * Record that an error occurred while attempting to generate hints for the
|
| + * source represented by this entry. This will set the state of all
|
| + * verification information as being in error. The [librarySource] is the
|
| + * source of the library in which hints were being generated. The [exception]
|
| + * is the exception that shows where the error occurred.
|
| + */
|
| + void recordHintErrorInLibrary(
|
| + Source librarySource, CaughtException exception) {
|
| + this.exception = exception;
|
| + ResolutionState state = _getOrCreateResolutionState(librarySource);
|
| + state.recordHintError();
|
| + }
|
| +
|
| + /**
|
| + * Record that an error occurred while attempting to generate lints for the
|
| + * source represented by this entry. This will set the state of all
|
| + * verification information as being in error. The [librarySource] is the
|
| + * source of the library in which lints were being generated. The [exception]
|
| + * is the exception that shows where the error occurred.
|
| + */
|
| + void recordLintErrorInLibrary(
|
| + Source librarySource, CaughtException exception) {
|
| + this.exception = exception;
|
| + ResolutionState state = _getOrCreateResolutionState(librarySource);
|
| + state.recordLintError();
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to scan or parse the
|
| + * entry represented by this entry. This will set the state of all information,
|
| + * including any resolution-based information, as being in error.
|
| + */
|
| + void recordParseError(CaughtException exception) {
|
| + setState(SOURCE_KIND, CacheState.ERROR);
|
| + setState(PARSE_ERRORS, CacheState.ERROR);
|
| + setState(PARSED_UNIT, CacheState.ERROR);
|
| + setState(EXPORTED_LIBRARIES, CacheState.ERROR);
|
| + setState(IMPORTED_LIBRARIES, CacheState.ERROR);
|
| + setState(INCLUDED_PARTS, CacheState.ERROR);
|
| + recordResolutionError(exception);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to resolve the source
|
| + * represented by this entry. This will set the state of all resolution-based
|
| + * information as being in error, but will not change the state of any parse
|
| + * results.
|
| + */
|
| + void recordResolutionError(CaughtException exception) {
|
| + this.exception = exception;
|
| + setState(ELEMENT, CacheState.ERROR);
|
| + setState(IS_CLIENT, CacheState.ERROR);
|
| + setState(IS_LAUNCHABLE, CacheState.ERROR);
|
| + setState(PUBLIC_NAMESPACE, CacheState.ERROR);
|
| + _resolutionState.recordResolutionErrorsInAllLibraries();
|
| + }
|
| +
|
| + /**
|
| + * Record that an error occurred while attempting to resolve the source
|
| + * represented by this entry. This will set the state of all resolution-based
|
| + * information as being in error, but will not change the state of any parse
|
| + * results. The [librarySource] is the source of the library in which
|
| + * resolution was being performed. The [exception] is the exception that shows
|
| + * where the error occurred.
|
| + */
|
| + void recordResolutionErrorInLibrary(
|
| + Source librarySource, CaughtException exception) {
|
| + this.exception = exception;
|
| + setState(ELEMENT, CacheState.ERROR);
|
| + setState(IS_CLIENT, CacheState.ERROR);
|
| + setState(IS_LAUNCHABLE, CacheState.ERROR);
|
| + setState(PUBLIC_NAMESPACE, CacheState.ERROR);
|
| + ResolutionState state = _getOrCreateResolutionState(librarySource);
|
| + state.recordResolutionError();
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to scan or parse the
|
| + * entry represented by this entry. This will set the state of all
|
| + * information, including any resolution-based information, as being in error.
|
| + */
|
| + @override
|
| + void recordScanError(CaughtException exception) {
|
| + super.recordScanError(exception);
|
| + setState(SCAN_ERRORS, CacheState.ERROR);
|
| + setState(TOKEN_STREAM, CacheState.ERROR);
|
| + recordParseError(exception);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to generate errors and
|
| + * warnings for the source represented by this entry. This will set the state
|
| + * of all verification information as being in error. The [librarySource] is
|
| + * the source of the library in which verification was being performed. The
|
| + * [exception] is the exception that shows where the error occurred.
|
| + */
|
| + void recordVerificationErrorInLibrary(
|
| + Source librarySource, CaughtException exception) {
|
| + this.exception = exception;
|
| + ResolutionState state = _getOrCreateResolutionState(librarySource);
|
| + state.recordVerificationError();
|
| + }
|
| +
|
| + /**
|
| + * Remove the given [library] from the list of libraries that contain this
|
| + * part. This method should only be invoked on entries that represent a part.
|
| + */
|
| + void removeContainingLibrary(Source library) {
|
| + _containingLibraries.remove(library);
|
| + }
|
| +
|
| + /**
|
| + * Remove any resolution information associated with this compilation unit
|
| + * being part of the given [library], presumably because it is no longer part
|
| + * of the library.
|
| + */
|
| + void removeResolution(Source library) {
|
| + if (library != null) {
|
| + if (library == _resolutionState._librarySource) {
|
| + if (_resolutionState._nextState == null) {
|
| + _resolutionState.invalidateAllResolutionInformation();
|
| + } else {
|
| + _resolutionState = _resolutionState._nextState;
|
| + }
|
| + } else {
|
| + ResolutionState priorState = _resolutionState;
|
| + ResolutionState state = _resolutionState._nextState;
|
| + while (state != null) {
|
| + if (library == state._librarySource) {
|
| + priorState._nextState = state._nextState;
|
| + break;
|
| + }
|
| + priorState = state;
|
| + state = state._nextState;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Set the state of the data represented by the given [descriptor] in the
|
| + * context of the given [library] to the given [state].
|
| + */
|
| + void setStateInLibrary(
|
| + DataDescriptor descriptor, Source library, CacheState state) {
|
| + if (!_isValidLibraryDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + ResolutionState resolutionState = _getOrCreateResolutionState(library);
|
| + resolutionState.setState(descriptor, state);
|
| + }
|
| +
|
| + /**
|
| + * Set the value of the data represented by the given [descriptor] in the
|
| + * context of the given [library] to the given [value], and set the state of
|
| + * that data to [CacheState.VALID].
|
| + */
|
| + void setValueInLibrary(
|
| + DataDescriptor descriptor, Source library, Object value) {
|
| + if (!_isValidLibraryDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + ResolutionState state = _getOrCreateResolutionState(library);
|
| + state.setValue(descriptor, value);
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the resolution information associated with the
|
| + * compilation unit. The flag [invalidateUris] should be `true` if the cached
|
| + * results of converting URIs to source files should also be invalidated.
|
| + */
|
| + void _discardCachedResolutionInformation(bool invalidateUris) {
|
| + setState(ELEMENT, CacheState.INVALID);
|
| + setState(IS_CLIENT, CacheState.INVALID);
|
| + setState(IS_LAUNCHABLE, CacheState.INVALID);
|
| + setState(PUBLIC_NAMESPACE, CacheState.INVALID);
|
| + _resolutionState.invalidateAllResolutionInformation();
|
| + if (invalidateUris) {
|
| + setState(EXPORTED_LIBRARIES, CacheState.INVALID);
|
| + setState(IMPORTED_LIBRARIES, CacheState.INVALID);
|
| + setState(INCLUDED_PARTS, CacheState.INVALID);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return a resolution state for the specified [library], creating one as
|
| + * necessary.
|
| + */
|
| + ResolutionState _getOrCreateResolutionState(Source library) {
|
| + ResolutionState state = _resolutionState;
|
| + if (state._librarySource == null) {
|
| + state._librarySource = library;
|
| + return state;
|
| + }
|
| + while (state._librarySource != library) {
|
| + if (state._nextState == null) {
|
| + ResolutionState newState = new ResolutionState();
|
| + newState._librarySource = library;
|
| + state._nextState = newState;
|
| + return newState;
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + return state;
|
| + }
|
| +
|
| + @override
|
| + bool _isValidDescriptor(DataDescriptor descriptor) {
|
| + return descriptor == CONTAINING_LIBRARIES ||
|
| + descriptor == ELEMENT ||
|
| + descriptor == EXPORTED_LIBRARIES ||
|
| + descriptor == IMPORTED_LIBRARIES ||
|
| + descriptor == INCLUDED_PARTS ||
|
| + descriptor == IS_CLIENT ||
|
| + descriptor == IS_LAUNCHABLE ||
|
| + descriptor == PARSED_UNIT ||
|
| + descriptor == PARSE_ERRORS ||
|
| + descriptor == PUBLIC_NAMESPACE ||
|
| + descriptor == SCAN_ERRORS ||
|
| + descriptor == SOURCE_KIND ||
|
| + descriptor == TOKEN_STREAM ||
|
| + super._isValidDescriptor(descriptor);
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the [descriptor] is valid for this entry when the data is
|
| + * relative to a library.
|
| + */
|
| + bool _isValidLibraryDescriptor(DataDescriptor descriptor) {
|
| + return descriptor == BUILT_ELEMENT ||
|
| + descriptor == BUILT_UNIT ||
|
| + descriptor == HINTS ||
|
| + descriptor == LINTS ||
|
| + descriptor == RESOLUTION_ERRORS ||
|
| + descriptor == RESOLVED_UNIT ||
|
| + descriptor == VERIFICATION_ERRORS;
|
| + }
|
| +
|
| + @override
|
| + bool _writeDiffOn(StringBuffer buffer, SourceEntry oldEntry) {
|
| + bool needsSeparator = super._writeDiffOn(buffer, oldEntry);
|
| + if (oldEntry is! DartEntry) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("entry type changed; was ");
|
| + buffer.write(oldEntry.runtimeType.toString());
|
| + return true;
|
| + }
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "tokenStream",
|
| + DartEntry.TOKEN_STREAM, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "scanErrors", DartEntry.SCAN_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "sourceKind", DartEntry.SOURCE_KIND, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "parsedUnit", DartEntry.PARSED_UNIT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "parseErrors",
|
| + DartEntry.PARSE_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "importedLibraries", DartEntry.IMPORTED_LIBRARIES, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "exportedLibraries", DartEntry.EXPORTED_LIBRARIES, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "includedParts",
|
| + DartEntry.INCLUDED_PARTS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "element", DartEntry.ELEMENT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "publicNamespace", DartEntry.PUBLIC_NAMESPACE, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "clientServer", DartEntry.IS_CLIENT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "launchable",
|
| + DartEntry.IS_LAUNCHABLE, oldEntry);
|
| + // TODO(brianwilkerson) Add better support for containingLibraries.
|
| + // It would be nice to be able to report on size-preserving changes.
|
| + int oldLibraryCount = (oldEntry as DartEntry)._containingLibraries.length;
|
| + int libraryCount = _containingLibraries.length;
|
| + if (oldLibraryCount != libraryCount) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("containingLibraryCount = ");
|
| + buffer.write(oldLibraryCount);
|
| + buffer.write(" -> ");
|
| + buffer.write(libraryCount);
|
| + needsSeparator = true;
|
| + }
|
| + //
|
| + // Report change to the per-library state.
|
| + //
|
| + HashMap<Source, ResolutionState> oldStateMap =
|
| + new HashMap<Source, ResolutionState>();
|
| + ResolutionState state = (oldEntry as DartEntry)._resolutionState;
|
| + while (state != null) {
|
| + Source librarySource = state._librarySource;
|
| + if (librarySource != null) {
|
| + oldStateMap[librarySource] = state;
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + state = _resolutionState;
|
| + while (state != null) {
|
| + Source librarySource = state._librarySource;
|
| + if (librarySource != null) {
|
| + ResolutionState oldState = oldStateMap.remove(librarySource);
|
| + if (oldState == null) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("added resolution for ");
|
| + buffer.write(librarySource.fullName);
|
| + needsSeparator = true;
|
| + } else {
|
| + needsSeparator = oldState._writeDiffOn(
|
| + buffer, needsSeparator, oldEntry as DartEntry);
|
| + }
|
| + }
|
| + state = state._nextState;
|
| + }
|
| + for (Source librarySource in oldStateMap.keys.toSet()) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("removed resolution for ");
|
| + buffer.write(librarySource.fullName);
|
| + needsSeparator = true;
|
| + }
|
| + return needsSeparator;
|
| + }
|
| +
|
| + @override
|
| + void _writeOn(StringBuffer buffer) {
|
| + buffer.write("Dart: ");
|
| + super._writeOn(buffer);
|
| + _writeStateOn(buffer, "tokenStream", TOKEN_STREAM);
|
| + _writeStateOn(buffer, "scanErrors", SCAN_ERRORS);
|
| + _writeStateOn(buffer, "sourceKind", SOURCE_KIND);
|
| + _writeStateOn(buffer, "parsedUnit", PARSED_UNIT);
|
| + _writeStateOn(buffer, "parseErrors", PARSE_ERRORS);
|
| + _writeStateOn(buffer, "exportedLibraries", EXPORTED_LIBRARIES);
|
| + _writeStateOn(buffer, "importedLibraries", IMPORTED_LIBRARIES);
|
| + _writeStateOn(buffer, "includedParts", INCLUDED_PARTS);
|
| + _writeStateOn(buffer, "element", ELEMENT);
|
| + _writeStateOn(buffer, "publicNamespace", PUBLIC_NAMESPACE);
|
| + _writeStateOn(buffer, "clientServer", IS_CLIENT);
|
| + _writeStateOn(buffer, "launchable", IS_LAUNCHABLE);
|
| + _resolutionState._writeOn(buffer);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An immutable constant representing data that can be stored in the cache.
|
| + */
|
| +class DataDescriptor<E> {
|
| + /**
|
| + * The next artificial hash code.
|
| + */
|
| + static int _NEXT_HASH_CODE = 0;
|
| +
|
| + /**
|
| + * The artifitial hash code for this object.
|
| + */
|
| + final int _hashCode = _NEXT_HASH_CODE++;
|
| +
|
| + /**
|
| + * The name of the descriptor, used for debugging purposes.
|
| + */
|
| + final String _name;
|
| +
|
| + /**
|
| + * The default value used when the data does not exist.
|
| + */
|
| + final E defaultValue;
|
| +
|
| + /**
|
| + * Initialize a newly created descriptor to have the given [name] and
|
| + * [defaultValue].
|
| + */
|
| + DataDescriptor(this._name, [this.defaultValue = null]);
|
| +
|
| + @override
|
| + int get hashCode => _hashCode;
|
| +
|
| + @override
|
| + String toString() => _name;
|
| +}
|
| +
|
| +/**
|
| + * A retention policy that will keep AST's in the cache if there is analysis
|
| + * information that needs to be computed for a source, where the computation is
|
| + * dependent on having the AST.
|
| + */
|
| +class DefaultRetentionPolicy implements CacheRetentionPolicy {
|
| + /**
|
| + * An instance of this class that can be shared.
|
| + */
|
| + static DefaultRetentionPolicy POLICY = new DefaultRetentionPolicy();
|
| +
|
| + /**
|
| + * Return `true` if there is analysis information in the given [dartEntry]
|
| + * that needs to be computed, where the computation is dependent on having the
|
| + * AST.
|
| + */
|
| + bool astIsNeeded(DartEntry dartEntry) =>
|
| + dartEntry.hasInvalidData(DartEntry.HINTS) ||
|
| + dartEntry.hasInvalidData(DartEntry.LINTS) ||
|
| + dartEntry.hasInvalidData(DartEntry.VERIFICATION_ERRORS) ||
|
| + dartEntry.hasInvalidData(DartEntry.RESOLUTION_ERRORS);
|
| +
|
| + @override
|
| + RetentionPriority getAstPriority(Source source, SourceEntry sourceEntry) {
|
| + if (sourceEntry is DartEntry) {
|
| + DartEntry dartEntry = sourceEntry;
|
| + if (astIsNeeded(dartEntry)) {
|
| + return RetentionPriority.MEDIUM;
|
| + }
|
| + }
|
| + return RetentionPriority.LOW;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `GenerateDartErrorsTask` generate errors and warnings for a single
|
| + * Dart source.
|
| + */
|
| +class GenerateDartErrorsTask extends AnalysisTask {
|
| + /**
|
| + * The source for which errors and warnings are to be produced.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The compilation unit used to resolve the dependencies.
|
| + */
|
| + final CompilationUnit _unit;
|
| +
|
| + /**
|
| + * The element model for the library containing the source.
|
| + */
|
| + final LibraryElement libraryElement;
|
| +
|
| + /**
|
| + * The errors that were generated for the source.
|
| + */
|
| + List<AnalysisError> _errors;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source for which errors and warnings are to be produced
|
| + * @param unit the compilation unit used to resolve the dependencies
|
| + * @param libraryElement the element model for the library containing the source
|
| + */
|
| + GenerateDartErrorsTask(InternalAnalysisContext context, this.source,
|
| + this._unit, this.libraryElement)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the errors that were generated for the source.
|
| + *
|
| + * @return the errors that were generated for the source
|
| + */
|
| + List<AnalysisError> get errors => _errors;
|
| +
|
| + @override
|
| + String get taskDescription =>
|
| + "generate errors and warnings for ${source.fullName}";
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) =>
|
| + visitor.visitGenerateDartErrorsTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + PerformanceStatistics.errors.makeCurrentWhile(() {
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + ErrorReporter errorReporter = new ErrorReporter(errorListener, source);
|
| + TypeProvider typeProvider = context.typeProvider;
|
| + //
|
| + // Validate the directives
|
| + //
|
| + validateDirectives(context, source, _unit, errorListener);
|
| + //
|
| + // Use the ConstantVerifier to verify the use of constants.
|
| + // This needs to happen before using the ErrorVerifier because some error
|
| + // codes need the computed constant values.
|
| + //
|
| + // 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),
|
| + 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.
|
| + *
|
| + * @param context the context in which the library exists
|
| + * @param librarySource the source representing the library containing the directives
|
| + * @param unit the compilation unit containing the directives to be validated
|
| + * @param errorListener the error listener to which errors should be reported
|
| + */
|
| + static void validateDirectives(AnalysisContext context, Source librarySource,
|
| + CompilationUnit unit, AnalysisErrorListener errorListener) {
|
| + for (Directive directive in unit.directives) {
|
| + if (directive is UriBasedDirective) {
|
| + validateReferencedSource(
|
| + context, librarySource, directive, errorListener);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * 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,
|
| + 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,
|
| + [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
|
| + * first in the list.
|
| + */
|
| + final List<TimestampedData<CompilationUnit>> _units;
|
| +
|
| + /**
|
| + * The element model for the library being analyzed.
|
| + */
|
| + final LibraryElement libraryElement;
|
| +
|
| + /**
|
| + * A table mapping the sources that were analyzed to the hints that were
|
| + * generated for the sources.
|
| + */
|
| + HashMap<Source, List<AnalysisError>> _hintMap;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param units the compilation units that comprise the library, with the defining compilation
|
| + * unit appearing first in the list
|
| + * @param libraryElement the element model for the library being analyzed
|
| + */
|
| + GenerateDartHintsTask(
|
| + InternalAnalysisContext context, this._units, this.libraryElement)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return a table mapping the sources that were analyzed to the hints that were generated for the
|
| + * sources, or `null` if the task has not been performed or if the analysis did not complete
|
| + * normally.
|
| + *
|
| + * @return a table mapping the sources that were analyzed to the hints that were generated for the
|
| + * sources
|
| + */
|
| + HashMap<Source, List<AnalysisError>> get hintMap => _hintMap;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + Source librarySource = libraryElement.source;
|
| + if (librarySource == null) {
|
| + return "generate Dart hints for library without source";
|
| + }
|
| + return "generate Dart hints for ${librarySource.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) =>
|
| + visitor.visitGenerateDartHintsTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + //
|
| + // Gather the compilation units.
|
| + //
|
| + int unitCount = _units.length;
|
| + List<CompilationUnit> compilationUnits =
|
| + new List<CompilationUnit>(unitCount);
|
| + for (int i = 0; i < unitCount; i++) {
|
| + compilationUnits[i] = _units[i].data;
|
| + }
|
| + //
|
| + // Analyze all of the units.
|
| + //
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + HintGenerator hintGenerator =
|
| + new HintGenerator(compilationUnits, context, errorListener);
|
| + hintGenerator.generateForLibrary();
|
| + //
|
| + // Store the results.
|
| + //
|
| + _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.
|
| + HashMap<Source, List<AnalysisError>> lintMap;
|
| +
|
| + /// Initialize a newly created task to perform lint checking over these
|
| + /// [_units] belonging to this [libraryElement] within the given [context].
|
| + GenerateDartLintsTask(context, this._units, this.libraryElement)
|
| + : super(context);
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + Source librarySource = libraryElement.source;
|
| + return (librarySource == null)
|
| + ? "generate Dart lints for library without source"
|
| + : "generate Dart lints for ${librarySource.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) =>
|
| + visitor.visitGenerateDartLintsTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + Iterable<CompilationUnit> compilationUnits =
|
| + _units.map((TimestampedData<CompilationUnit> unit) => unit.data);
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + LintGenerator lintGenerator =
|
| + new LintGenerator(compilationUnits, errorListener);
|
| + lintGenerator.generate();
|
| +
|
| + lintMap = new HashMap<Source, List<AnalysisError>>();
|
| + compilationUnits.forEach((CompilationUnit unit) {
|
| + Source source = unit.element.source;
|
| + lintMap[source] = errorListener.getErrorsForSource(source);
|
| + });
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `GetContentTask` get the contents of a source.
|
| + */
|
| +class GetContentTask extends AnalysisTask {
|
| + /**
|
| + * The source to be read.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * A flag indicating whether this task is complete.
|
| + */
|
| + bool _complete = false;
|
| +
|
| + /**
|
| + * The contents of the source.
|
| + */
|
| + String _content;
|
| +
|
| + /**
|
| + * The errors that were produced by getting the source content.
|
| + */
|
| + final List<AnalysisError> errors = <AnalysisError>[];
|
| +
|
| + /**
|
| + * The time at which the contents of the source were last modified.
|
| + */
|
| + int _modificationTime = -1;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source to be parsed
|
| + * @param contentData the time-stamped contents of the source
|
| + */
|
| + GetContentTask(InternalAnalysisContext context, this.source)
|
| + : super(context) {
|
| + if (source == null) {
|
| + throw new IllegalArgumentException("Cannot get contents of null source");
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the contents of the source, or `null` if the task has not completed or if there
|
| + * was an exception while getting the contents.
|
| + *
|
| + * @return the contents of the source
|
| + */
|
| + String get content => _content;
|
| +
|
| + /**
|
| + * Return `true` if this task is complete. Unlike most tasks, this task is allowed to be
|
| + * visited more than once in order to support asynchronous IO. If the task is not complete when it
|
| + * is visited synchronously as part of the [AnalysisTask.perform]
|
| + * method, it will be visited again, using the same visitor, when the IO operation has been
|
| + * performed.
|
| + *
|
| + * @return `true` if this task is complete
|
| + */
|
| + bool get isComplete => _complete;
|
| +
|
| + /**
|
| + * Return the time at which the contents of the source that was parsed were last modified, or a
|
| + * negative value if the task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return the time at which the contents of the source that was parsed were last modified
|
| + */
|
| + int get modificationTime => _modificationTime;
|
| +
|
| + @override
|
| + String get taskDescription => "get contents of ${source.fullName}";
|
| +
|
| + @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);
|
| + } 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));
|
| + }
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The information cached by an analysis context about an individual HTML file.
|
| + */
|
| +class HtmlEntry extends SourceEntry {
|
| + /**
|
| + * The data descriptor representing the HTML element.
|
| + */
|
| + static final DataDescriptor<HtmlElement> ELEMENT =
|
| + new DataDescriptor<HtmlElement>("HtmlEntry.ELEMENT");
|
| +
|
| + /**
|
| + * The data descriptor representing the hints resulting from auditing the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> HINTS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "HtmlEntry.HINTS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from parsing the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> PARSE_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "HtmlEntry.PARSE_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the parsed AST structure.
|
| + */
|
| + static final DataDescriptor<ht.HtmlUnit> PARSED_UNIT =
|
| + new DataDescriptor<ht.HtmlUnit>("HtmlEntry.PARSED_UNIT");
|
| +
|
| + /**
|
| + * The data descriptor representing the resolved AST structure.
|
| + */
|
| + static final DataDescriptor<ht.HtmlUnit> RESOLVED_UNIT =
|
| + new DataDescriptor<ht.HtmlUnit>("HtmlEntry.RESOLVED_UNIT");
|
| +
|
| + /**
|
| + * The data descriptor representing the list of referenced libraries.
|
| + */
|
| + static final DataDescriptor<List<Source>> REFERENCED_LIBRARIES =
|
| + new DataDescriptor<List<Source>>(
|
| + "HtmlEntry.REFERENCED_LIBRARIES", Source.EMPTY_LIST);
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from resolving the
|
| + * source.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> RESOLUTION_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "HtmlEntry.RESOLUTION_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * Return all of the errors associated with the HTML file that are currently
|
| + * cached.
|
| + */
|
| + List<AnalysisError> get allErrors {
|
| + List<AnalysisError> errors = new List<AnalysisError>();
|
| + errors.addAll(super.allErrors);
|
| + errors.addAll(getValue(PARSE_ERRORS));
|
| + errors.addAll(getValue(RESOLUTION_ERRORS));
|
| + errors.addAll(getValue(HINTS));
|
| + if (errors.length == 0) {
|
| + return AnalysisError.NO_ERRORS;
|
| + }
|
| + return errors;
|
| + }
|
| +
|
| + /**
|
| + * Return a valid parsed unit, either an unresolved AST structure or the
|
| + * result of resolving the AST structure, or `null` if there is no parsed unit
|
| + * available.
|
| + */
|
| + ht.HtmlUnit get anyParsedUnit {
|
| + if (getState(PARSED_UNIT) == CacheState.VALID) {
|
| + return getValue(PARSED_UNIT);
|
| + }
|
| + if (getState(RESOLVED_UNIT) == CacheState.VALID) {
|
| + return getValue(RESOLVED_UNIT);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + @override
|
| + List<DataDescriptor> get descriptors {
|
| + List<DataDescriptor> result = super.descriptors;
|
| + result.addAll([
|
| + HtmlEntry.ELEMENT,
|
| + HtmlEntry.PARSE_ERRORS,
|
| + HtmlEntry.PARSED_UNIT,
|
| + HtmlEntry.RESOLUTION_ERRORS,
|
| + HtmlEntry.RESOLVED_UNIT,
|
| + HtmlEntry.HINTS
|
| + ]);
|
| + return result;
|
| + }
|
| +
|
| + @override
|
| + SourceKind get kind => SourceKind.HTML;
|
| +
|
| + /**
|
| + * Flush any AST structures being maintained by this entry.
|
| + */
|
| + void flushAstStructures() {
|
| + _flush(PARSED_UNIT);
|
| + _flush(RESOLVED_UNIT);
|
| + }
|
| +
|
| + @override
|
| + void invalidateAllInformation() {
|
| + super.invalidateAllInformation();
|
| + setState(PARSE_ERRORS, CacheState.INVALID);
|
| + setState(PARSED_UNIT, CacheState.INVALID);
|
| + setState(RESOLVED_UNIT, CacheState.INVALID);
|
| + invalidateAllResolutionInformation(true);
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the resolution information associated with the HTML file.
|
| + * If [invalidateUris] is `true`, the cached results of converting URIs to
|
| + * source files should also be invalidated.
|
| + */
|
| + void invalidateAllResolutionInformation(bool invalidateUris) {
|
| + setState(RESOLVED_UNIT, CacheState.INVALID);
|
| + setState(ELEMENT, CacheState.INVALID);
|
| + setState(RESOLUTION_ERRORS, CacheState.INVALID);
|
| + setState(HINTS, CacheState.INVALID);
|
| + if (invalidateUris) {
|
| + setState(REFERENCED_LIBRARIES, CacheState.INVALID);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the parse and resolution information associated with
|
| + * this source.
|
| + */
|
| + void invalidateParseInformation() {
|
| + setState(PARSE_ERRORS, CacheState.INVALID);
|
| + setState(PARSED_UNIT, CacheState.INVALID);
|
| + invalidateAllResolutionInformation(true);
|
| + }
|
| +
|
| + @override
|
| + void recordContentError(CaughtException exception) {
|
| + super.recordContentError(exception);
|
| + recordParseError(exception);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] was encountered while attempting to parse the
|
| + * source associated with this entry.
|
| + */
|
| + void recordParseError(CaughtException exception) {
|
| + // If the scanning and parsing of HTML are separated,
|
| + // the following line can be removed.
|
| + recordScanError(exception);
|
| + setState(PARSE_ERRORS, CacheState.ERROR);
|
| + setState(PARSED_UNIT, CacheState.ERROR);
|
| + setState(REFERENCED_LIBRARIES, CacheState.ERROR);
|
| + recordResolutionError(exception);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] was encountered while attempting to resolve the
|
| + * source associated with this entry.
|
| + */
|
| + void recordResolutionError(CaughtException exception) {
|
| + this.exception = exception;
|
| + setState(RESOLVED_UNIT, CacheState.ERROR);
|
| + setState(ELEMENT, CacheState.ERROR);
|
| + setState(RESOLUTION_ERRORS, CacheState.ERROR);
|
| + setState(HINTS, CacheState.ERROR);
|
| + }
|
| +
|
| + @override
|
| + bool _isValidDescriptor(DataDescriptor descriptor) {
|
| + return descriptor == ELEMENT ||
|
| + descriptor == HINTS ||
|
| + descriptor == PARSED_UNIT ||
|
| + descriptor == PARSE_ERRORS ||
|
| + descriptor == REFERENCED_LIBRARIES ||
|
| + descriptor == RESOLUTION_ERRORS ||
|
| + descriptor == RESOLVED_UNIT ||
|
| + super._isValidDescriptor(descriptor);
|
| + }
|
| +
|
| + @override
|
| + bool _writeDiffOn(StringBuffer buffer, SourceEntry oldEntry) {
|
| + bool needsSeparator = super._writeDiffOn(buffer, oldEntry);
|
| + if (oldEntry is! HtmlEntry) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("entry type changed; was ");
|
| + buffer.write(oldEntry.runtimeType);
|
| + return true;
|
| + }
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "parseErrors",
|
| + HtmlEntry.PARSE_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "parsedUnit", HtmlEntry.PARSED_UNIT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "resolvedUnit",
|
| + HtmlEntry.RESOLVED_UNIT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "resolutionErrors", HtmlEntry.RESOLUTION_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "referencedLibraries", HtmlEntry.REFERENCED_LIBRARIES, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "element", HtmlEntry.ELEMENT, oldEntry);
|
| + return needsSeparator;
|
| + }
|
| +
|
| + @override
|
| + void _writeOn(StringBuffer buffer) {
|
| + buffer.write("Html: ");
|
| + super._writeOn(buffer);
|
| + _writeStateOn(buffer, "parseErrors", PARSE_ERRORS);
|
| + _writeStateOn(buffer, "parsedUnit", PARSED_UNIT);
|
| + _writeStateOn(buffer, "resolvedUnit", RESOLVED_UNIT);
|
| + _writeStateOn(buffer, "resolutionErrors", RESOLUTION_ERRORS);
|
| + _writeStateOn(buffer, "referencedLibraries", REFERENCED_LIBRARIES);
|
| + _writeStateOn(buffer, "element", ELEMENT);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An event indicating when a source either starts or stops being implicitly
|
| + * analyzed.
|
| + */
|
| +class ImplicitAnalysisEvent {
|
| + /**
|
| + * The source whose status has changed.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * A flag indicating whether the source is now being analyzed.
|
| + */
|
| + final bool isAnalyzed;
|
| +
|
| + /**
|
| + * Initialize a newly created event to indicate that the given [source] has
|
| + * changed it status to match the [isAnalyzed] flag.
|
| + */
|
| + ImplicitAnalysisEvent(this.source, this.isAnalyzed);
|
| +
|
| + @override
|
| + String toString() =>
|
| + '${isAnalyzed ? '' : 'not '}analyzing ${source.fullName}';
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `IncrementalAnalysisCache` hold information used to perform
|
| + * incremental analysis.
|
| + *
|
| + * See [AnalysisContextImpl.setChangedContents].
|
| + */
|
| +class IncrementalAnalysisCache {
|
| + final Source librarySource;
|
| +
|
| + final Source source;
|
| +
|
| + final String oldContents;
|
| +
|
| + 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,
|
| + 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;
|
| +
|
| + /**
|
| + * Return the current contents for the receiver's source.
|
| + *
|
| + * @return the contents (not `null`)
|
| + */
|
| + String get newContents => _newContents;
|
| +
|
| + /**
|
| + * Return the number of characters in the replacement text.
|
| + *
|
| + * @return the replacement length (zero or greater)
|
| + */
|
| + int get newLength => _newLength;
|
| +
|
| + /**
|
| + * Return the character position of the first changed character.
|
| + *
|
| + * @return the offset (zero or greater)
|
| + */
|
| + int get offset => _offset;
|
| +
|
| + /**
|
| + * Return the number of characters that were replaced.
|
| + *
|
| + * @return the replaced length (zero or greater)
|
| + */
|
| + int get oldLength => _oldLength;
|
| +
|
| + /**
|
| + * Determine if the incremental analysis result can be cached for the next incremental analysis.
|
| + *
|
| + * @param cache the prior incremental analysis cache
|
| + * @param unit the incrementally updated compilation unit
|
| + * @return the cache used for incremental analysis or `null` if incremental analysis results
|
| + * cannot be cached for the next incremental analysis
|
| + */
|
| + static IncrementalAnalysisCache cacheResult(
|
| + IncrementalAnalysisCache cache, CompilationUnit unit) {
|
| + if (cache != null && unit != null) {
|
| + return new IncrementalAnalysisCache(cache.librarySource, cache.source,
|
| + unit, cache._newContents, cache._newContents, 0, 0, 0);
|
| + }
|
| + return null;
|
| + }
|
| +
|
| + /**
|
| + * Determine if the cache should be cleared.
|
| + *
|
| + * @param cache the prior cache or `null` if none
|
| + * @param source the source being updated (not `null`)
|
| + * @return the cache used for incremental analysis or `null` if incremental analysis cannot
|
| + * be performed
|
| + */
|
| + static IncrementalAnalysisCache clear(
|
| + IncrementalAnalysisCache cache, Source source) {
|
| + if (cache == null || cache.source == source) {
|
| + return null;
|
| + }
|
| + return cache;
|
| + }
|
| +
|
| + /**
|
| + * Determine if incremental analysis can be performed from the given information.
|
| + *
|
| + * @param cache the prior cache or `null` if none
|
| + * @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) {
|
| + // 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(
|
| + DartEntry.RESOLVED_UNIT, librarySource);
|
| + }
|
| + }
|
| + }
|
| + // Create a new cache if there is not an existing cache or the source is
|
| + // different or a new resolved compilation unit is available.
|
| + if (cache == null || cache.source != source || unit != null) {
|
| + if (unit == null) {
|
| + return null;
|
| + }
|
| + if (oldContents == null) {
|
| + if (oldLength != 0) {
|
| + return null;
|
| + }
|
| + oldContents =
|
| + "${newContents.substring(0, offset)}${newContents.substring(offset + newLength)}";
|
| + }
|
| + return new IncrementalAnalysisCache(librarySource, source, unit,
|
| + oldContents, newContents, offset, oldLength, newLength);
|
| + }
|
| + // Update the existing cache if the change is contiguous
|
| + if (cache._oldLength == 0 && cache._newLength == 0) {
|
| + cache._offset = offset;
|
| + cache._oldLength = oldLength;
|
| + cache._newLength = newLength;
|
| + } else {
|
| + if (cache._offset > offset || offset > cache._offset + cache._newLength) {
|
| + return null;
|
| + }
|
| + cache._newLength += newLength - oldLength;
|
| + }
|
| + cache._newContents = newContents;
|
| + return cache;
|
| + }
|
| +
|
| + /**
|
| + * Verify that the incrementally parsed and resolved unit in the incremental cache is structurally
|
| + * equivalent to the fully parsed unit.
|
| + *
|
| + * @param cache the prior cache or `null` if none
|
| + * @param source the source of the compilation unit that was parsed (not `null`)
|
| + * @param unit the compilation unit that was just parsed
|
| + * @return the cache used for incremental analysis or `null` if incremental analysis results
|
| + * cannot be cached for the next incremental analysis
|
| + */
|
| + static IncrementalAnalysisCache verifyStructure(
|
| + IncrementalAnalysisCache cache, Source source, CompilationUnit unit) {
|
| + if (cache != null && unit != null && cache.source == source) {
|
| + if (!AstComparator.equalNodes(cache.resolvedUnit, unit)) {
|
| + return null;
|
| + }
|
| + }
|
| + return cache;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `IncrementalAnalysisTask` incrementally update existing analysis.
|
| + */
|
| +class IncrementalAnalysisTask extends AnalysisTask {
|
| + /**
|
| + * The information used to perform incremental analysis.
|
| + */
|
| + final IncrementalAnalysisCache cache;
|
| +
|
| + /**
|
| + * The compilation unit that was produced by incrementally updating the existing unit.
|
| + */
|
| + CompilationUnit _updatedUnit;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param cache the incremental analysis cache used to perform the analysis
|
| + */
|
| + IncrementalAnalysisTask(InternalAnalysisContext context, this.cache)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the compilation unit that was produced by incrementally updating the existing
|
| + * compilation unit, or `null` if the task has not yet been performed, could not be
|
| + * performed, or if an exception occurred.
|
| + *
|
| + * @return the compilation unit
|
| + */
|
| + CompilationUnit get compilationUnit => _updatedUnit;
|
| +
|
| + /**
|
| + * Return the source that is to be incrementally analyzed.
|
| + *
|
| + * @return the source
|
| + */
|
| + Source get source => cache != null ? cache.source : null;
|
| +
|
| + @override
|
| + String get taskDescription =>
|
| + "incremental analysis ${cache != null ? cache.source : "null"}";
|
| +
|
| + /**
|
| + * Return the type provider used for incremental resolution.
|
| + *
|
| + * @return the type provider (or `null` if an exception occurs)
|
| + */
|
| + TypeProvider get typeProvider {
|
| + try {
|
| + return context.typeProvider;
|
| + } on AnalysisException {
|
| + return null;
|
| + }
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) =>
|
| + visitor.visitIncrementalAnalysisTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + if (cache == null) {
|
| + return;
|
| + }
|
| + // Only handle small changes
|
| + if (cache.oldLength > 0 || cache.newLength > 30) {
|
| + return;
|
| + }
|
| + // Produce an updated token stream
|
| + CharacterReader reader = new CharSequenceReader(cache.newContents);
|
| + BooleanErrorListener errorListener = new BooleanErrorListener();
|
| + IncrementalScanner scanner = new IncrementalScanner(
|
| + cache.source, reader, errorListener, context.analysisOptions);
|
| + scanner.rescan(cache.resolvedUnit.beginToken, cache.offset, cache.oldLength,
|
| + cache.newLength);
|
| + if (errorListener.errorReported) {
|
| + return;
|
| + }
|
| + // Produce an updated AST
|
| + IncrementalParser parser = new IncrementalParser(
|
| + cache.source, scanner.tokenMap, AnalysisErrorListener.NULL_LISTENER);
|
| + _updatedUnit = parser.reparse(cache.resolvedUnit, scanner.leftToken,
|
| + scanner.rightToken, cache.offset, cache.offset + cache.oldLength);
|
| + // Update the resolution
|
| + TypeProvider typeProvider = this.typeProvider;
|
| + if (_updatedUnit != null && typeProvider != null) {
|
| + CompilationUnitElement element = _updatedUnit.element;
|
| + if (element != null) {
|
| + LibraryElement library = element.library;
|
| + if (library != null) {
|
| + IncrementalResolver resolver = new IncrementalResolver(null, null,
|
| + null, element, cache.offset, cache.oldLength, cache.newLength);
|
| + resolver.resolve(parser.updatedNode);
|
| + }
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Additional behavior for an analysis context that is required by internal
|
| + * users of the context.
|
| + */
|
| +abstract class InternalAnalysisContext implements AnalysisContext {
|
| + /**
|
| + * A table mapping the sources known to the context to the information known
|
| + * about the source.
|
| + *
|
| + * TODO(scheglov) add the type, once we have only one cache.
|
| + */
|
| + dynamic get analysisCache;
|
| +
|
| + /**
|
| + * Allow the client to supply its own content cache. This will take the
|
| + * place of the content cache created by default, allowing clients to share
|
| + * the content cache between contexts.
|
| + */
|
| + set contentCache(ContentCache value);
|
| +
|
| + /**
|
| + * Return a list of the explicit targets being analyzed by this context.
|
| + */
|
| + List<AnalysisTarget> get explicitTargets;
|
| +
|
| + /**
|
| + * A factory to override how [LibraryResolver] is created.
|
| + */
|
| + LibraryResolverFactory get libraryResolverFactory;
|
| +
|
| + /**
|
| + * Return a list containing all of the sources that have been marked as
|
| + * priority sources. Clients must not modify the returned list.
|
| + */
|
| + List<Source> get prioritySources;
|
| +
|
| + /**
|
| + * Return a list of the priority targets being analyzed by this context.
|
| + */
|
| + List<AnalysisTarget> get priorityTargets;
|
| +
|
| + /**
|
| + * The partition that contains analysis results that are not shared with other
|
| + * contexts.
|
| + *
|
| + * TODO(scheglov) add the type, once we have only one cache.
|
| + */
|
| + dynamic get privateAnalysisCachePartition;
|
| +
|
| + /**
|
| + * A factory to override how [ResolverVisitor] is created.
|
| + */
|
| + ResolverVisitorFactory get resolverVisitorFactory;
|
| +
|
| + /**
|
| + * Returns a statistics about this context.
|
| + */
|
| + AnalysisContextStatistics get statistics;
|
| +
|
| + /**
|
| + * Sets the [TypeProvider] for this context.
|
| + */
|
| + void set typeProvider(TypeProvider typeProvider);
|
| +
|
| + /**
|
| + * A factory to override how [TypeResolverVisitor] is created.
|
| + */
|
| + TypeResolverVisitorFactory get typeResolverVisitorFactory;
|
| +
|
| + /**
|
| + * Return a list containing the sources of the libraries that are exported by
|
| + * the library with the given [source]. The list will be empty if the given
|
| + * source is invalid, if the given source does not represent a library, or if
|
| + * the library does not export any other libraries.
|
| + *
|
| + * Throws an [AnalysisException] if the exported libraries could not be
|
| + * computed.
|
| + */
|
| + List<Source> computeExportedLibraries(Source source);
|
| +
|
| + /**
|
| + * Return a list containing the sources of the libraries that are imported by
|
| + * the library with the given [source]. The list will be empty if the given
|
| + * source is invalid, if the given source does not represent a library, or if
|
| + * the library does not import any other libraries.
|
| + *
|
| + * Throws an [AnalysisException] if the imported libraries could not be
|
| + * computed.
|
| + */
|
| + List<Source> computeImportedLibraries(Source source);
|
| +
|
| + /**
|
| + * Return an AST structure corresponding to the given [source], but ensure
|
| + * that the structure has not already been resolved and will not be resolved
|
| + * by any other threads or in any other library.
|
| + *
|
| + * Throws an [AnalysisException] if the analysis could not be performed.
|
| + *
|
| + * <b>Note:</b> This method cannot be used in an async environment
|
| + */
|
| + CompilationUnit computeResolvableCompilationUnit(Source source);
|
| +
|
| + /**
|
| + * Return all the resolved [CompilationUnit]s for the given [source] if not
|
| + * flushed, otherwise return `null` and ensures that the [CompilationUnit]s
|
| + * will be eventually returned to the client from [performAnalysisTask].
|
| + */
|
| + List<CompilationUnit> ensureResolvedDartUnits(Source source);
|
| +
|
| + /**
|
| + * Return the cache entry associated with the given [target].
|
| + */
|
| + cache.CacheEntry getCacheEntry(AnalysisTarget target);
|
| +
|
| + /**
|
| + * Return context that owns the given [source].
|
| + */
|
| + InternalAnalysisContext getContextFor(Source source);
|
| +
|
| + /**
|
| + * Return a change notice for the given [source], creating one if one does not
|
| + * already exist.
|
| + */
|
| + ChangeNoticeImpl getNotice(Source source);
|
| +
|
| + /**
|
| + * Return a namespace containing mappings for all of the public names defined
|
| + * by the given [library].
|
| + */
|
| + Namespace getPublicNamespace(LibraryElement library);
|
| +
|
| + /**
|
| + * Respond to a change which has been made to the given [source] file.
|
| + * [originalContents] is the former contents of the file, and [newContents]
|
| + * is the updated contents. If [notify] is true, a source changed event is
|
| + * triggered.
|
| + *
|
| + * Normally it should not be necessary for clients to call this function,
|
| + * since it will be automatically invoked in response to a call to
|
| + * [applyChanges] or [setContents]. However, if this analysis context is
|
| + * sharing its content cache with other contexts, then the client must
|
| + * manually update the content cache and call this function for each context.
|
| + *
|
| + * Return `true` if the change was significant to this context (i.e. [source]
|
| + * is either implicitly or explicitly analyzed by this context, and a change
|
| + * actually occurred).
|
| + */
|
| + bool handleContentsChanged(
|
| + Source source, String originalContents, String newContents, bool notify);
|
| +
|
| + /**
|
| + * Given an [elementMap] mapping the source for the libraries represented by
|
| + * the corresponding elements to the elements representing the libraries,
|
| + * record those mappings.
|
| + */
|
| + void recordLibraryElements(Map<Source, LibraryElement> elementMap);
|
| +
|
| + /**
|
| + * Return `true` if errors should be produced for the given [source].
|
| + * The [entry] associated with the source is passed in for efficiency.
|
| + *
|
| + * TODO(scheglov) remove [entry] after migration to the new task model.
|
| + * It is not used there anyway.
|
| + */
|
| + bool shouldErrorsBeAnalyzed(Source source, Object entry);
|
| +
|
| + /**
|
| + * For testing only: flush all representations of the AST (both resolved and
|
| + * unresolved) for the given [source] out of the cache.
|
| + */
|
| + void test_flushAstStructures(Source source);
|
| +
|
| + /**
|
| + * Call the given callback function for eache cache item in the context.
|
| + */
|
| + @deprecated
|
| + void visitCacheItems(void callback(Source source, SourceEntry dartEntry,
|
| + DataDescriptor rowDesc, CacheState state));
|
| +
|
| + /**
|
| + * Visit all entries of the content cache.
|
| + */
|
| + void visitContentCache(ContentCacheVisitor visitor);
|
| +}
|
| +
|
| +/**
|
| + * An object that can be used to receive information about errors within the
|
| + * analysis engine. Implementations usually write this information to a file,
|
| + * but can also record the information for later use (such as during testing) or
|
| + * even ignore the information.
|
| + */
|
| +abstract class Logger {
|
| + /**
|
| + * A logger that ignores all logging.
|
| + */
|
| + static final Logger NULL = new NullLogger();
|
| +
|
| + /**
|
| + * Log the given message as an error. The [message] is expected to be an
|
| + * explanation of why the error occurred or what it means. The [exception] is
|
| + * expected to be the reason for the error. At least one argument must be
|
| + * provided.
|
| + */
|
| + void logError(String message, [CaughtException exception]);
|
| +
|
| + /**
|
| + * Log the given [exception] as one representing an error. The [message] is an
|
| + * explanation of why the error occurred or what it means.
|
| + */
|
| + @deprecated // Use logError(message, exception)
|
| + void logError2(String message, Object exception);
|
| +
|
| + /**
|
| + * Log the given informational message. The [message] is expected to be an
|
| + * explanation of why the error occurred or what it means. The [exception] is
|
| + * expected to be the reason for the error.
|
| + */
|
| + void logInformation(String message, [CaughtException exception]);
|
| +
|
| + /**
|
| + * Log the given [exception] as one representing an informational message. The
|
| + * [message] is an explanation of why the error occurred or what it means.
|
| + */
|
| + @deprecated // Use logInformation(message, exception)
|
| + void logInformation2(String message, Object exception);
|
| +}
|
| +
|
| +/**
|
| + * An implementation of [Logger] that does nothing.
|
| + */
|
| +class NullLogger implements Logger {
|
| + @override
|
| + void logError(String message, [CaughtException exception]) {}
|
| +
|
| + @override
|
| + void logError2(String message, Object exception) {}
|
| +
|
| + @override
|
| + void logInformation(String message, [CaughtException exception]) {}
|
| +
|
| + @override
|
| + void logInformation2(String message, Object exception) {}
|
| +}
|
| +
|
| +/**
|
| + * An exception created when an analysis attempt fails because a source was
|
| + * deleted between the time the analysis started and the time the results of the
|
| + * analysis were ready to be recorded.
|
| + */
|
| +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") {
|
| + this._source = source;
|
| + }
|
| +
|
| + /**
|
| + * Return the source that was removed while it was being analyzed.
|
| + */
|
| + Source get source => _source;
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ParseDartTask` parse a specific source as a Dart file.
|
| + */
|
| +class ParseDartTask extends AnalysisTask {
|
| + /**
|
| + * The source to be parsed.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The head of the token stream used for parsing.
|
| + */
|
| + final Token _tokenStream;
|
| +
|
| + /**
|
| + * The line information associated with the source.
|
| + */
|
| + final LineInfo lineInfo;
|
| +
|
| + /**
|
| + * The compilation unit that was produced by parsing the source.
|
| + */
|
| + CompilationUnit _unit;
|
| +
|
| + /**
|
| + * A flag indicating whether the source contains a 'part of' directive.
|
| + */
|
| + bool _containsPartOfDirective = false;
|
| +
|
| + /**
|
| + * A flag indicating whether the source contains any directive other than a 'part of' directive.
|
| + */
|
| + bool _containsNonPartOfDirective = false;
|
| +
|
| + /**
|
| + * A set containing the sources referenced by 'export' directives.
|
| + */
|
| + HashSet<Source> _exportedSources = new HashSet<Source>();
|
| +
|
| + /**
|
| + * A set containing the sources referenced by 'import' directives.
|
| + */
|
| + HashSet<Source> _importedSources = new HashSet<Source>();
|
| +
|
| + /**
|
| + * A set containing the sources referenced by 'part' directives.
|
| + */
|
| + HashSet<Source> _includedSources = new HashSet<Source>();
|
| +
|
| + /**
|
| + * The errors that were produced by scanning and parsing the source.
|
| + */
|
| + List<AnalysisError> _errors = AnalysisError.NO_ERRORS;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source to be parsed
|
| + * @param tokenStream the head of the token stream used for parsing
|
| + * @param lineInfo the line information associated with the source
|
| + */
|
| + ParseDartTask(InternalAnalysisContext context, this.source, this._tokenStream,
|
| + this.lineInfo)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the compilation unit that was produced by parsing the source, or `null` if the
|
| + * task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return the compilation unit that was produced by parsing the source
|
| + */
|
| + CompilationUnit get compilationUnit => _unit;
|
| +
|
| + /**
|
| + * Return the errors that were produced by scanning and parsing the source, or an empty list if
|
| + * the task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return the errors that were produced by scanning and parsing the source
|
| + */
|
| + List<AnalysisError> get errors => _errors;
|
| +
|
| + /**
|
| + * Return a list containing the sources referenced by 'export' directives, or an empty list if
|
| + * the task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return an list containing the sources referenced by 'export' directives
|
| + */
|
| + List<Source> get exportedSources => _toArray(_exportedSources);
|
| +
|
| + /**
|
| + * Return `true` if the source contains any directive other than a 'part of' directive, or
|
| + * `false` if the task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return `true` if the source contains any directive other than a 'part of' directive
|
| + */
|
| + bool get hasNonPartOfDirective => _containsNonPartOfDirective;
|
| +
|
| + /**
|
| + * Return `true` if the source contains a 'part of' directive, or `false` if the task
|
| + * has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return `true` if the source contains a 'part of' directive
|
| + */
|
| + bool get hasPartOfDirective => _containsPartOfDirective;
|
| +
|
| + /**
|
| + * Return a list containing the sources referenced by 'import' directives, or an empty list if
|
| + * the task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return a list containing the sources referenced by 'import' directives
|
| + */
|
| + List<Source> get importedSources => _toArray(_importedSources);
|
| +
|
| + /**
|
| + * Return a list containing the sources referenced by 'part' directives, or an empty list if
|
| + * the task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return a list containing the sources referenced by 'part' directives
|
| + */
|
| + List<Source> get includedSources => _toArray(_includedSources);
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + if (source == null) {
|
| + return "parse as dart null source";
|
| + }
|
| + return "parse as dart ${source.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) => visitor.visitParseDartTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + //
|
| + // Then parse the token stream.
|
| + //
|
| + PerformanceStatistics.parse.makeCurrentWhile(() {
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + Parser parser = new Parser(source, errorListener);
|
| + AnalysisOptions options = context.analysisOptions;
|
| + parser.parseFunctionBodies =
|
| + options.analyzeFunctionBodiesPredicate(source);
|
| + parser.parseGenericMethods = options.enableGenericMethods;
|
| + _unit = parser.parseCompilationUnit(_tokenStream);
|
| + _unit.lineInfo = lineInfo;
|
| + AnalysisContext analysisContext = context;
|
| + for (Directive directive in _unit.directives) {
|
| + if (directive is PartOfDirective) {
|
| + _containsPartOfDirective = true;
|
| + } else {
|
| + _containsNonPartOfDirective = true;
|
| + if (directive is UriBasedDirective) {
|
| + Source referencedSource = resolveDirective(
|
| + analysisContext, source, directive, errorListener);
|
| + if (referencedSource != null) {
|
| + if (directive is ExportDirective) {
|
| + _exportedSources.add(referencedSource);
|
| + } else if (directive is ImportDirective) {
|
| + _importedSources.add(referencedSource);
|
| + } else if (directive is PartDirective) {
|
| + if (referencedSource != source) {
|
| + _includedSources.add(referencedSource);
|
| + }
|
| + } else {
|
| + throw new AnalysisException(
|
| + "$runtimeType failed to handle a ${directive.runtimeType}");
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + _errors = errorListener.getErrorsForSource(source);
|
| + });
|
| + }
|
| +
|
| + /**
|
| + * Efficiently convert the given set of [sources] to a list.
|
| + */
|
| + List<Source> _toArray(HashSet<Source> sources) {
|
| + int size = sources.length;
|
| + if (size == 0) {
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + return new List.from(sources);
|
| + }
|
| +
|
| + /**
|
| + * Return the result of resolving the URI of the given URI-based directive against the URI of the
|
| + * given library, or `null` if the URI is not valid.
|
| + *
|
| + * @param context the context in which the resolution is to be performed
|
| + * @param librarySource the source representing the library containing the directive
|
| + * @param directive the directive which URI should be resolved
|
| + * @param errorListener the error listener to which errors should be reported
|
| + * @return the result of resolving the URI against the URI of the library
|
| + */
|
| + static Source resolveDirective(AnalysisContext context, Source librarySource,
|
| + UriBasedDirective directive, AnalysisErrorListener errorListener) {
|
| + StringLiteral uriLiteral = directive.uri;
|
| + String uriContent = uriLiteral.stringValue;
|
| + if (uriContent != null) {
|
| + uriContent = uriContent.trim();
|
| + directive.uriContent = uriContent;
|
| + }
|
| + UriValidationCode code = directive.validate();
|
| + if (code == null) {
|
| + String encodedUriContent = Uri.encodeFull(uriContent);
|
| + try {
|
| + Source source =
|
| + context.sourceFactory.resolveUri(librarySource, encodedUriContent);
|
| + directive.source = source;
|
| + return source;
|
| + } on JavaIOException {
|
| + code = UriValidationCode.INVALID_URI;
|
| + }
|
| + }
|
| + if (code == UriValidationCode.URI_WITH_DART_EXT_SCHEME) {
|
| + return null;
|
| + }
|
| + if (code == UriValidationCode.URI_WITH_INTERPOLATION) {
|
| + errorListener.onError(new AnalysisError(librarySource, uriLiteral.offset,
|
| + uriLiteral.length, CompileTimeErrorCode.URI_WITH_INTERPOLATION));
|
| + return null;
|
| + }
|
| + if (code == UriValidationCode.INVALID_URI) {
|
| + errorListener.onError(new AnalysisError(librarySource, uriLiteral.offset,
|
| + uriLiteral.length, CompileTimeErrorCode.INVALID_URI, [uriContent]));
|
| + return null;
|
| + }
|
| + throw new RuntimeException(
|
| + message: "Failed to handle validation code: $code");
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ParseHtmlTask` parse a specific source as an HTML file.
|
| + */
|
| +class ParseHtmlTask extends AnalysisTask {
|
| + /**
|
| + * The name of the 'src' attribute in a HTML tag.
|
| + */
|
| + static String _ATTRIBUTE_SRC = "src";
|
| +
|
| + /**
|
| + * The name of the 'script' tag in an HTML file.
|
| + */
|
| + static String _TAG_SCRIPT = "script";
|
| +
|
| + /**
|
| + * The source to be parsed.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The contents of the source.
|
| + */
|
| + final String _content;
|
| +
|
| + /**
|
| + * The line information that was produced.
|
| + */
|
| + LineInfo _lineInfo;
|
| +
|
| + /**
|
| + * The HTML unit that was produced by parsing the source.
|
| + */
|
| + ht.HtmlUnit _unit;
|
| +
|
| + /**
|
| + * The errors that were produced by scanning and parsing the source.
|
| + */
|
| + List<AnalysisError> _errors = AnalysisError.NO_ERRORS;
|
| +
|
| + /**
|
| + * A list containing the sources of the libraries that are referenced within the HTML.
|
| + */
|
| + List<Source> _referencedLibraries = Source.EMPTY_LIST;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source to be parsed
|
| + * @param content the contents of the source
|
| + */
|
| + ParseHtmlTask(InternalAnalysisContext context, this.source, this._content)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the errors that were produced by scanning and parsing the source, or `null` if the
|
| + * task has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return the errors that were produced by scanning and parsing the source
|
| + */
|
| + List<AnalysisError> get errors => _errors;
|
| +
|
| + /**
|
| + * Return the HTML unit that was produced by parsing the source.
|
| + *
|
| + * @return the HTML unit that was produced by parsing the source
|
| + */
|
| + ht.HtmlUnit get htmlUnit => _unit;
|
| +
|
| + /**
|
| + * Return the sources of libraries that are referenced in the specified HTML file.
|
| + *
|
| + * @return the sources of libraries that are referenced in the HTML file
|
| + */
|
| + List<Source> get librarySources {
|
| + List<Source> libraries = new List<Source>();
|
| + _unit.accept(new ParseHtmlTask_getLibrarySources(this, libraries));
|
| + if (libraries.isEmpty) {
|
| + return Source.EMPTY_LIST;
|
| + }
|
| + return libraries;
|
| + }
|
| +
|
| + /**
|
| + * Return the line information that was produced, or `null` if the task has not yet been
|
| + * performed or if an exception occurred.
|
| + *
|
| + * @return the line information that was produced
|
| + */
|
| + LineInfo get lineInfo => _lineInfo;
|
| +
|
| + /**
|
| + * Return a list containing the sources of the libraries that are referenced within the HTML.
|
| + *
|
| + * @return the sources of the libraries that are referenced within the HTML
|
| + */
|
| + List<Source> get referencedLibraries => _referencedLibraries;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + if (source == null) {
|
| + return "parse as html null source";
|
| + }
|
| + return "parse as html ${source.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) => visitor.visitParseHtmlTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + try {
|
| + ht.AbstractScanner scanner = new ht.StringScanner(source, _content);
|
| + scanner.passThroughElements = <String>[_TAG_SCRIPT];
|
| + ht.Token token = scanner.tokenize();
|
| + _lineInfo = new LineInfo(scanner.lineStarts);
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + _unit = new ht.HtmlParser(source, errorListener, context.analysisOptions)
|
| + .parse(token, _lineInfo);
|
| + _unit.accept(new RecursiveXmlVisitor_ParseHtmlTask_internalPerform(
|
| + this, errorListener));
|
| + _errors = errorListener.getErrorsForSource(source);
|
| + _referencedLibraries = librarySources;
|
| + } catch (exception, stackTrace) {
|
| + throw new AnalysisException(
|
| + "Exception", new CaughtException(exception, stackTrace));
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Resolves directives in the given [CompilationUnit].
|
| + */
|
| + void _resolveScriptDirectives(
|
| + CompilationUnit script, AnalysisErrorListener errorListener) {
|
| + if (script == null) {
|
| + return;
|
| + }
|
| + AnalysisContext analysisContext = context;
|
| + for (Directive directive in script.directives) {
|
| + if (directive is UriBasedDirective) {
|
| + ParseDartTask.resolveDirective(
|
| + analysisContext, source, directive, errorListener);
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +class ParseHtmlTask_getLibrarySources extends ht.RecursiveXmlVisitor<Object> {
|
| + final ParseHtmlTask _task;
|
| +
|
| + List<Source> libraries;
|
| +
|
| + ParseHtmlTask_getLibrarySources(this._task, this.libraries) : super();
|
| +
|
| + @override
|
| + Object visitHtmlScriptTagNode(ht.HtmlScriptTagNode node) {
|
| + ht.XmlAttributeNode scriptAttribute = null;
|
| + for (ht.XmlAttributeNode attribute in node.attributes) {
|
| + if (javaStringEqualsIgnoreCase(
|
| + attribute.name, ParseHtmlTask._ATTRIBUTE_SRC)) {
|
| + scriptAttribute = attribute;
|
| + }
|
| + }
|
| + if (scriptAttribute != null) {
|
| + try {
|
| + Uri uri = Uri.parse(scriptAttribute.text);
|
| + String fileName = uri.path;
|
| + Source librarySource =
|
| + _task.context.sourceFactory.resolveUri(_task.source, fileName);
|
| + if (_task.context.exists(librarySource)) {
|
| + libraries.add(librarySource);
|
| + }
|
| + } on FormatException {
|
| + // ignored - invalid URI reported during resolution phase
|
| + }
|
| + }
|
| + return super.visitHtmlScriptTagNode(node);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An object that manages the partitions that can be shared between analysis
|
| + * contexts.
|
| + */
|
| +class PartitionManager {
|
| + /**
|
| + * The default cache size for a Dart SDK partition.
|
| + */
|
| + static int _DEFAULT_SDK_CACHE_SIZE = 256;
|
| +
|
| + /**
|
| + * A table mapping SDK's to the partitions used for those SDK's.
|
| + */
|
| + HashMap<DartSdk, SdkCachePartition> _sdkPartitions =
|
| + new HashMap<DartSdk, SdkCachePartition>();
|
| +
|
| + /**
|
| + * Clear any cached data being maintained by this manager.
|
| + */
|
| + void clearCache() {
|
| + _sdkPartitions.clear();
|
| + }
|
| +
|
| + /**
|
| + * Return the partition being used for the given [sdk], creating the partition
|
| + * if necessary.
|
| + */
|
| + SdkCachePartition forSdk(DartSdk sdk) {
|
| + // Call sdk.context now, because when it creates a new
|
| + // InternalAnalysisContext instance, it calls forSdk() again, so creates an
|
| + // SdkCachePartition instance.
|
| + // So, if we initialize context after "partition == null", we end up
|
| + // with two SdkCachePartition instances.
|
| + InternalAnalysisContext sdkContext = sdk.context;
|
| + // Check cache for an existing partition.
|
| + SdkCachePartition partition = _sdkPartitions[sdk];
|
| + if (partition == null) {
|
| + partition = new SdkCachePartition(sdkContext, _DEFAULT_SDK_CACHE_SIZE);
|
| + _sdkPartitions[sdk] = partition;
|
| + }
|
| + return partition;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Representation of a pending computation which is based on the results of
|
| + * analysis that may or may not have been completed.
|
| + */
|
| +class PendingFuture<T> {
|
| + /**
|
| + * The context in which this computation runs.
|
| + */
|
| + final AnalysisContextImpl _context;
|
| +
|
| + /**
|
| + * The source used by this computation to compute its value.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The function which implements the computation.
|
| + */
|
| + final PendingFutureComputer<T> _computeValue;
|
| +
|
| + /**
|
| + * The completer that should be completed once the computation has succeeded.
|
| + */
|
| + CancelableCompleter<T> _completer;
|
| +
|
| + PendingFuture(this._context, this.source, this._computeValue) {
|
| + _completer = new CancelableCompleter<T>(_onCancel);
|
| + }
|
| +
|
| + /**
|
| + * Retrieve the future which will be completed when this object is
|
| + * successfully evaluated.
|
| + */
|
| + CancelableFuture<T> get future => _completer.future;
|
| +
|
| + /**
|
| + * Execute [_computeValue], passing it the given [sourceEntry], and complete
|
| + * the pending future if it's appropriate to do so. If the pending future is
|
| + * completed by this call, true is returned; otherwise false is returned.
|
| + *
|
| + * Once this function has returned true, it should not be called again.
|
| + *
|
| + * Other than completing the future, this method is free of side effects.
|
| + * Note that any code the client has attached to the future will be executed
|
| + * in a microtask, so there is no danger of side effects occurring due to
|
| + * client callbacks.
|
| + */
|
| + bool evaluate(SourceEntry sourceEntry) {
|
| + assert(!_completer.isCompleted);
|
| + try {
|
| + T result = _computeValue(sourceEntry);
|
| + if (result == null) {
|
| + return false;
|
| + } else {
|
| + _completer.complete(result);
|
| + return true;
|
| + }
|
| + } catch (exception, stackTrace) {
|
| + _completer.completeError(exception, stackTrace);
|
| + return true;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * No further analysis updates are expected which affect this future, so
|
| + * complete it with an AnalysisNotScheduledError in order to avoid
|
| + * deadlocking the client.
|
| + */
|
| + void forciblyComplete() {
|
| + try {
|
| + throw new AnalysisNotScheduledError();
|
| + } catch (exception, stackTrace) {
|
| + _completer.completeError(exception, stackTrace);
|
| + }
|
| + }
|
| +
|
| + void _onCancel() {
|
| + _context._cancelFuture(this);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Container with global [AnalysisContext] performance statistics.
|
| + */
|
| +class PerformanceStatistics {
|
| + /**
|
| + * The [PerformanceTag] for time spent in reading files.
|
| + */
|
| + static PerformanceTag io = new PerformanceTag('io');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in scanning.
|
| + */
|
| + static PerformanceTag scan = new PerformanceTag('scan');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in parsing.
|
| + */
|
| + static PerformanceTag parse = new PerformanceTag('parse');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in resolving.
|
| + */
|
| + static PerformanceTag resolve = new PerformanceTag('resolve');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in error verifier.
|
| + */
|
| + static PerformanceTag errors = new PerformanceTag('errors');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in hints generator.
|
| + */
|
| + static PerformanceTag hints = new PerformanceTag('hints');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in linting.
|
| + */
|
| + static PerformanceTag lint = new PerformanceTag('lint');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent computing cycles.
|
| + */
|
| + static PerformanceTag cycles = new PerformanceTag('cycles');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in other phases of analysis.
|
| + */
|
| + static PerformanceTag performAnaysis = new PerformanceTag('performAnaysis');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in the analysis task visitor after
|
| + * tasks are complete.
|
| + */
|
| + static PerformanceTag analysisTaskVisitor =
|
| + new PerformanceTag('analysisTaskVisitor');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent in the getter
|
| + * AnalysisContextImpl.nextAnalysisTask.
|
| + */
|
| + static var nextTask = new PerformanceTag('nextAnalysisTask');
|
| +
|
| + /**
|
| + * The [PerformanceTag] for time spent during otherwise not accounted parts
|
| + * incremental of analysis.
|
| + */
|
| + static PerformanceTag incrementalAnalysis =
|
| + new PerformanceTag('incrementalAnalysis');
|
| +}
|
| +
|
| +/**
|
| + * An error listener that will record the errors that are reported to it in a
|
| + * way that is appropriate for caching those errors within an analysis context.
|
| + */
|
| +class RecordingErrorListener implements AnalysisErrorListener {
|
| + /**
|
| + * A map of sets containing the errors that were collected, keyed by each
|
| + * source.
|
| + */
|
| + Map<Source, HashSet<AnalysisError>> _errors =
|
| + new HashMap<Source, HashSet<AnalysisError>>();
|
| +
|
| + /**
|
| + * Return the errors collected by the listener.
|
| + */
|
| + List<AnalysisError> get errors {
|
| + int numEntries = _errors.length;
|
| + if (numEntries == 0) {
|
| + return AnalysisError.NO_ERRORS;
|
| + }
|
| + List<AnalysisError> resultList = new List<AnalysisError>();
|
| + for (HashSet<AnalysisError> errors in _errors.values) {
|
| + resultList.addAll(errors);
|
| + }
|
| + return resultList;
|
| + }
|
| +
|
| + /**
|
| + * Add all of the errors recorded by the given [listener] to this listener.
|
| + */
|
| + void addAll(RecordingErrorListener listener) {
|
| + for (AnalysisError error in listener.errors) {
|
| + onError(error);
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the errors collected by the listener for the given [source].
|
| + */
|
| + List<AnalysisError> getErrorsForSource(Source source) {
|
| + HashSet<AnalysisError> errorsForSource = _errors[source];
|
| + if (errorsForSource == null) {
|
| + return AnalysisError.NO_ERRORS;
|
| + } else {
|
| + return new List.from(errorsForSource);
|
| + }
|
| + }
|
| +
|
| + @override
|
| + void onError(AnalysisError error) {
|
| + Source source = error.source;
|
| + HashSet<AnalysisError> errorsForSource = _errors[source];
|
| + if (_errors[source] == null) {
|
| + errorsForSource = new HashSet<AnalysisError>();
|
| + _errors[source] = errorsForSource;
|
| + }
|
| + errorsForSource.add(error);
|
| + }
|
| +}
|
| +
|
| +class RecursiveXmlVisitor_ParseHtmlTask_internalPerform
|
| + extends ht.RecursiveXmlVisitor<Object> {
|
| + final ParseHtmlTask ParseHtmlTask_this;
|
| +
|
| + RecordingErrorListener errorListener;
|
| +
|
| + RecursiveXmlVisitor_ParseHtmlTask_internalPerform(
|
| + this.ParseHtmlTask_this, this.errorListener)
|
| + : super();
|
| +
|
| + @override
|
| + Object visitHtmlScriptTagNode(ht.HtmlScriptTagNode node) {
|
| + ParseHtmlTask_this._resolveScriptDirectives(node.script, errorListener);
|
| + return null;
|
| + }
|
| +}
|
| +
|
| +class RecursiveXmlVisitor_ResolveHtmlTask_internalPerform
|
| + extends ht.RecursiveXmlVisitor<Object> {
|
| + final ResolveHtmlTask ResolveHtmlTask_this;
|
| +
|
| + RecordingErrorListener errorListener;
|
| +
|
| + RecursiveXmlVisitor_ResolveHtmlTask_internalPerform(
|
| + this.ResolveHtmlTask_this, this.errorListener)
|
| + : super();
|
| +
|
| + @override
|
| + Object visitHtmlScriptTagNode(ht.HtmlScriptTagNode node) {
|
| + CompilationUnit script = node.script;
|
| + if (script != null) {
|
| + GenerateDartErrorsTask.validateDirectives(ResolveHtmlTask_this.context,
|
| + ResolveHtmlTask_this.source, script, errorListener);
|
| + }
|
| + return null;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An visitor that removes any resolution information from an AST structure when
|
| + * used to visit that structure.
|
| + */
|
| +class ResolutionEraser extends GeneralizingAstVisitor<Object> {
|
| + @override
|
| + Object visitAssignmentExpression(AssignmentExpression node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitAssignmentExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitBinaryExpression(BinaryExpression node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitBinaryExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitBreakStatement(BreakStatement node) {
|
| + node.target = null;
|
| + return super.visitBreakStatement(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitCompilationUnit(CompilationUnit node) {
|
| + node.element = null;
|
| + return super.visitCompilationUnit(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitConstructorDeclaration(ConstructorDeclaration node) {
|
| + node.element = null;
|
| + return super.visitConstructorDeclaration(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitConstructorName(ConstructorName node) {
|
| + node.staticElement = null;
|
| + return super.visitConstructorName(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitContinueStatement(ContinueStatement node) {
|
| + node.target = null;
|
| + return super.visitContinueStatement(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitDirective(Directive node) {
|
| + node.element = null;
|
| + return super.visitDirective(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitExpression(Expression node) {
|
| + node.staticType = null;
|
| + node.propagatedType = null;
|
| + return super.visitExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitFunctionExpression(FunctionExpression node) {
|
| + node.element = null;
|
| + return super.visitFunctionExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitFunctionExpressionInvocation(FunctionExpressionInvocation node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitFunctionExpressionInvocation(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitIndexExpression(IndexExpression node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitIndexExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitInstanceCreationExpression(InstanceCreationExpression node) {
|
| + node.staticElement = null;
|
| + return super.visitInstanceCreationExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitPostfixExpression(PostfixExpression node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitPostfixExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitPrefixExpression(PrefixExpression node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitPrefixExpression(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitRedirectingConstructorInvocation(
|
| + RedirectingConstructorInvocation node) {
|
| + node.staticElement = null;
|
| + return super.visitRedirectingConstructorInvocation(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitSimpleIdentifier(SimpleIdentifier node) {
|
| + node.staticElement = null;
|
| + node.propagatedElement = null;
|
| + return super.visitSimpleIdentifier(node);
|
| + }
|
| +
|
| + @override
|
| + Object visitSuperConstructorInvocation(SuperConstructorInvocation node) {
|
| + node.staticElement = null;
|
| + return super.visitSuperConstructorInvocation(node);
|
| + }
|
| +
|
| + /**
|
| + * Remove any resolution information from the given AST structure.
|
| + */
|
| + static void erase(AstNode node) {
|
| + node.accept(new ResolutionEraser());
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The information produced by resolving a compilation unit as part of a
|
| + * specific library.
|
| + */
|
| +class ResolutionState {
|
| + /**
|
| + * The next resolution state or `null` if none.
|
| + */
|
| + ResolutionState _nextState;
|
| +
|
| + /**
|
| + * The source for the defining compilation unit of the library that contains
|
| + * this unit. If this unit is the defining compilation unit for it's library,
|
| + * then this will be the source for this unit.
|
| + */
|
| + Source _librarySource;
|
| +
|
| + /**
|
| + * A table mapping descriptors to the cached results for those descriptors.
|
| + * If there is no entry for a given descriptor then the state is implicitly
|
| + * [CacheState.INVALID] and the value is implicitly the default value.
|
| + */
|
| + Map<DataDescriptor, CachedResult> resultMap =
|
| + new HashMap<DataDescriptor, CachedResult>();
|
| +
|
| + /**
|
| + * Flush any AST structures being maintained by this state.
|
| + */
|
| + void flushAstStructures() {
|
| + _flush(DartEntry.BUILT_UNIT);
|
| + _flush(DartEntry.RESOLVED_UNIT);
|
| + if (_nextState != null) {
|
| + _nextState.flushAstStructures();
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the state of the data represented by the given [descriptor].
|
| + */
|
| + CacheState getState(DataDescriptor descriptor) {
|
| + CachedResult result = resultMap[descriptor];
|
| + if (result == null) {
|
| + return CacheState.INVALID;
|
| + }
|
| + return result.state;
|
| + }
|
| +
|
| + /**
|
| + * Return the value of the data represented by the given [descriptor], or
|
| + * `null` if the data represented by the descriptor is not valid.
|
| + */
|
| + /*<V>*/ dynamic /*V*/ getValue(DataDescriptor /*<V>*/ descriptor) {
|
| + CachedResult result = resultMap[descriptor];
|
| + if (result == null) {
|
| + return descriptor.defaultValue;
|
| + }
|
| + return result.value;
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the state of any data value is [CacheState.ERROR].
|
| + */
|
| + bool hasErrorState() {
|
| + for (CachedResult result in resultMap.values) {
|
| + if (result.state == CacheState.ERROR) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the resolution information associated with the compilation unit.
|
| + */
|
| + void invalidateAllResolutionInformation() {
|
| + _nextState = null;
|
| + _librarySource = null;
|
| + setState(DartEntry.BUILT_UNIT, CacheState.INVALID);
|
| + setState(DartEntry.BUILT_ELEMENT, CacheState.INVALID);
|
| + setState(DartEntry.HINTS, CacheState.INVALID);
|
| + setState(DartEntry.LINTS, CacheState.INVALID);
|
| + setState(DartEntry.RESOLVED_UNIT, CacheState.INVALID);
|
| + setState(DartEntry.RESOLUTION_ERRORS, CacheState.INVALID);
|
| + setState(DartEntry.VERIFICATION_ERRORS, CacheState.INVALID);
|
| + }
|
| +
|
| + /**
|
| + * Record that an exception occurred while attempting to build the element
|
| + * model for the source associated with this state.
|
| + */
|
| + void recordBuildElementError() {
|
| + setState(DartEntry.BUILT_UNIT, CacheState.ERROR);
|
| + setState(DartEntry.BUILT_ELEMENT, CacheState.ERROR);
|
| + recordResolutionError();
|
| + }
|
| +
|
| + /**
|
| + * Record that an exception occurred while attempting to generate hints for
|
| + * the source associated with this entry. This will set the state of all
|
| + * verification information as being in error.
|
| + */
|
| + void recordHintError() {
|
| + setState(DartEntry.HINTS, CacheState.ERROR);
|
| + }
|
| +
|
| + /**
|
| + * Record that an exception occurred while attempting to generate lints for
|
| + * the source associated with this entry. This will set the state of all
|
| + * verification information as being in error.
|
| + */
|
| + void recordLintError() {
|
| + setState(DartEntry.LINTS, CacheState.ERROR);
|
| + }
|
| +
|
| + /**
|
| + * Record that an exception occurred while attempting to resolve the source
|
| + * associated with this state.
|
| + */
|
| + void recordResolutionError() {
|
| + setState(DartEntry.RESOLVED_UNIT, CacheState.ERROR);
|
| + setState(DartEntry.RESOLUTION_ERRORS, CacheState.ERROR);
|
| + recordVerificationError();
|
| + }
|
| +
|
| + /**
|
| + * Record that an exception occurred while attempting to scan or parse the
|
| + * source associated with this entry. This will set the state of all
|
| + * resolution-based information as being in error.
|
| + */
|
| + void recordResolutionErrorsInAllLibraries() {
|
| + recordBuildElementError();
|
| + if (_nextState != null) {
|
| + _nextState.recordResolutionErrorsInAllLibraries();
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Record that an exception occurred while attempting to generate errors and
|
| + * warnings for the source associated with this entry. This will set the state
|
| + * of all verification information as being in error.
|
| + */
|
| + void recordVerificationError() {
|
| + setState(DartEntry.VERIFICATION_ERRORS, CacheState.ERROR);
|
| + recordHintError();
|
| + }
|
| +
|
| + /**
|
| + * Set the state of the data represented by the given [descriptor] to the
|
| + * given [state].
|
| + */
|
| + void setState(DataDescriptor descriptor, CacheState state) {
|
| + if (state == CacheState.VALID) {
|
| + throw new ArgumentError("use setValue() to set the state to VALID");
|
| + }
|
| + if (state == CacheState.INVALID) {
|
| + resultMap.remove(descriptor);
|
| + } else {
|
| + CachedResult result =
|
| + resultMap.putIfAbsent(descriptor, () => new CachedResult(descriptor));
|
| + result.state = state;
|
| + if (state != CacheState.IN_PROCESS) {
|
| + //
|
| + // If the state is in-process, we can leave the current value in the
|
| + // cache for any 'get' methods to access.
|
| + //
|
| + result.value = descriptor.defaultValue;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Set the value of the data represented by the given [descriptor] to the
|
| + * given [value].
|
| + */
|
| + void setValue(DataDescriptor /*<V>*/ descriptor, dynamic /*V*/ value) {
|
| + CachedResult result =
|
| + resultMap.putIfAbsent(descriptor, () => new CachedResult(descriptor));
|
| + SourceEntry.countTransition(descriptor, result);
|
| + result.state = CacheState.VALID;
|
| + result.value = value == null ? descriptor.defaultValue : value;
|
| + }
|
| +
|
| + /**
|
| + * Flush the value of the data described by the [descriptor].
|
| + */
|
| + void _flush(DataDescriptor descriptor) {
|
| + CachedResult result = resultMap[descriptor];
|
| + if (result != null && result.state == CacheState.VALID) {
|
| + result.state = CacheState.FLUSHED;
|
| + result.value = descriptor.defaultValue;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of the difference between the old entry and
|
| + * this entry to the given string [buffer]. A separator will be written before
|
| + * the first difference if [needsSeparator] is `true`. The [oldEntry] is the
|
| + * entry that was replaced by this entry. Return `true` is a separator is
|
| + * needed before writing any subsequent differences.
|
| + */
|
| + bool _writeDiffOn(
|
| + StringBuffer buffer, bool needsSeparator, DartEntry oldEntry) {
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator, "resolvedUnit",
|
| + DartEntry.RESOLVED_UNIT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "resolutionErrors", DartEntry.RESOLUTION_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(buffer, needsSeparator,
|
| + "verificationErrors", DartEntry.VERIFICATION_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "hints", DartEntry.HINTS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "lints", DartEntry.LINTS, oldEntry);
|
| + return needsSeparator;
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of this state to the given [buffer]. The
|
| + * result will only be used for debugging purposes.
|
| + */
|
| + void _writeOn(StringBuffer buffer) {
|
| + if (_librarySource != null) {
|
| + _writeStateOn(buffer, "builtElement", DartEntry.BUILT_ELEMENT);
|
| + _writeStateOn(buffer, "builtUnit", DartEntry.BUILT_UNIT);
|
| + _writeStateOn(buffer, "resolvedUnit", DartEntry.RESOLVED_UNIT);
|
| + _writeStateOn(buffer, "resolutionErrors", DartEntry.RESOLUTION_ERRORS);
|
| + _writeStateOn(
|
| + buffer, "verificationErrors", DartEntry.VERIFICATION_ERRORS);
|
| + _writeStateOn(buffer, "hints", DartEntry.HINTS);
|
| + _writeStateOn(buffer, "lints", DartEntry.LINTS);
|
| + if (_nextState != null) {
|
| + _nextState._writeOn(buffer);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of the difference between the state of the
|
| + * value described by the given [descriptor] between the [oldEntry] and this
|
| + * entry to the given [buffer]. Return `true` if some difference was written.
|
| + */
|
| + bool _writeStateDiffOn(StringBuffer buffer, bool needsSeparator, String label,
|
| + DataDescriptor descriptor, SourceEntry oldEntry) {
|
| + CacheState oldState = oldEntry.getState(descriptor);
|
| + CacheState newState = getState(descriptor);
|
| + if (oldState != newState) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write(label);
|
| + buffer.write(" = ");
|
| + buffer.write(oldState);
|
| + buffer.write(" -> ");
|
| + buffer.write(newState);
|
| + return true;
|
| + }
|
| + return needsSeparator;
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of the state of the value described by the
|
| + * given [descriptor] to the given bugger, prefixed by the given [label] to
|
| + * the given [buffer].
|
| + */
|
| + void _writeStateOn(
|
| + StringBuffer buffer, String label, DataDescriptor descriptor) {
|
| + CachedResult result = resultMap[descriptor];
|
| + buffer.write("; ");
|
| + buffer.write(label);
|
| + buffer.write(" = ");
|
| + buffer.write(result == null ? CacheState.INVALID : result.state);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * A compilation unit that is not referenced by any other objects. It is used by
|
| + * the [LibraryResolver] to resolve a library.
|
| + */
|
| +class ResolvableCompilationUnit {
|
| + /**
|
| + * The source of the compilation unit.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The compilation unit.
|
| + */
|
| + final CompilationUnit compilationUnit;
|
| +
|
| + /**
|
| + * Initialize a newly created holder to hold the given [source] and
|
| + * [compilationUnit].
|
| + */
|
| + ResolvableCompilationUnit(this.source, this.compilationUnit);
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ResolveDartLibraryTask` resolve a specific Dart library.
|
| + */
|
| +class ResolveDartLibraryCycleTask extends AnalysisTask {
|
| + /**
|
| + * The source representing the file whose compilation unit is to be returned. TODO(brianwilkerson)
|
| + * This should probably be removed, but is being left in for now to ease the transition.
|
| + */
|
| + final Source unitSource;
|
| +
|
| + /**
|
| + * The source representing the library to be resolved.
|
| + */
|
| + final Source librarySource;
|
| +
|
| + /**
|
| + * The libraries that are part of the cycle containing the library to be resolved.
|
| + */
|
| + final List<ResolvableLibrary> _librariesInCycle;
|
| +
|
| + /**
|
| + * The library resolver holding information about the libraries that were resolved.
|
| + */
|
| + LibraryResolver2 _resolver;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param unitSource the source representing the file whose compilation unit is to be returned
|
| + * @param librarySource the source representing the library to be resolved
|
| + * @param librariesInCycle the libraries that are part of the cycle containing the library to be
|
| + * resolved
|
| + */
|
| + ResolveDartLibraryCycleTask(InternalAnalysisContext context, this.unitSource,
|
| + this.librarySource, this._librariesInCycle)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the library resolver holding information about the libraries that were resolved.
|
| + *
|
| + * @return the library resolver holding information about the libraries that were resolved
|
| + */
|
| + LibraryResolver2 get libraryResolver => _resolver;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + if (librarySource == null) {
|
| + return "resolve library null source";
|
| + }
|
| + return "resolve library ${librarySource.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) =>
|
| + visitor.visitResolveDartLibraryCycleTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + _resolver = new LibraryResolver2(context);
|
| + _resolver.resolveLibrary(librarySource, _librariesInCycle);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ResolveDartLibraryTask` resolve a specific Dart library.
|
| + */
|
| +class ResolveDartLibraryTask extends AnalysisTask {
|
| + /**
|
| + * The source representing the file whose compilation unit is to be returned.
|
| + */
|
| + final Source unitSource;
|
| +
|
| + /**
|
| + * The source representing the library to be resolved.
|
| + */
|
| + final Source librarySource;
|
| +
|
| + /**
|
| + * The library resolver holding information about the libraries that were resolved.
|
| + */
|
| + LibraryResolver _resolver;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param unitSource the source representing the file whose compilation unit is to be returned
|
| + * @param librarySource the source representing the library to be resolved
|
| + */
|
| + ResolveDartLibraryTask(
|
| + InternalAnalysisContext context, this.unitSource, this.librarySource)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the library resolver holding information about the libraries that were resolved.
|
| + *
|
| + * @return the library resolver holding information about the libraries that were resolved
|
| + */
|
| + LibraryResolver get libraryResolver => _resolver;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + if (librarySource == null) {
|
| + return "resolve library null source";
|
| + }
|
| + return "resolve library ${librarySource.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) =>
|
| + visitor.visitResolveDartLibraryTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + LibraryResolverFactory resolverFactory = context.libraryResolverFactory;
|
| + _resolver = resolverFactory == null
|
| + ? new LibraryResolver(context)
|
| + : resolverFactory(context);
|
| + _resolver.resolveLibrary(librarySource, true);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ResolveDartUnitTask` resolve a single Dart file based on a existing
|
| + * element model.
|
| + */
|
| +class ResolveDartUnitTask extends AnalysisTask {
|
| + /**
|
| + * The source that is to be resolved.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The element model for the library containing the source.
|
| + */
|
| + final LibraryElement _libraryElement;
|
| +
|
| + /**
|
| + * The compilation unit that was resolved by this task.
|
| + */
|
| + CompilationUnit _resolvedUnit;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source to be parsed
|
| + * @param libraryElement the element model for the library containing the source
|
| + */
|
| + ResolveDartUnitTask(
|
| + InternalAnalysisContext context, this.source, this._libraryElement)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the source for the library containing the source that is to be resolved.
|
| + *
|
| + * @return the source for the library containing the source that is to be resolved
|
| + */
|
| + Source get librarySource => _libraryElement.source;
|
| +
|
| + /**
|
| + * Return the compilation unit that was resolved by this task.
|
| + *
|
| + * @return the compilation unit that was resolved by this task
|
| + */
|
| + CompilationUnit get resolvedUnit => _resolvedUnit;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + Source librarySource = _libraryElement.source;
|
| + if (librarySource == null) {
|
| + return "resolve unit null source";
|
| + }
|
| + return "resolve unit ${librarySource.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) => visitor.visitResolveDartUnitTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + TypeProvider typeProvider = _libraryElement.context.typeProvider;
|
| + CompilationUnit unit = context.computeResolvableCompilationUnit(source);
|
| + if (unit == null) {
|
| + throw new AnalysisException(
|
| + "Internal error: computeResolvableCompilationUnit returned a value without a parsed Dart unit");
|
| + }
|
| + //
|
| + // Resolve names in declarations.
|
| + //
|
| + new DeclarationResolver().resolve(unit, _find(_libraryElement, source));
|
| + //
|
| + // Resolve the type names.
|
| + //
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + TypeResolverVisitor typeResolverVisitor = new TypeResolverVisitor(
|
| + _libraryElement, source, typeProvider, errorListener);
|
| + unit.accept(typeResolverVisitor);
|
| + //
|
| + // Resolve the rest of the structure
|
| + //
|
| + InheritanceManager inheritanceManager =
|
| + 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,
|
| + 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);
|
| + });
|
| + //
|
| + // Capture the results.
|
| + //
|
| + _resolvedUnit = unit;
|
| + }
|
| +
|
| + /**
|
| + * Search the compilation units that are part of the given library and return the element
|
| + * representing the compilation unit with the given source. Return `null` if there is no
|
| + * such compilation unit.
|
| + *
|
| + * @param libraryElement the element representing the library being searched through
|
| + * @param unitSource the source for the compilation unit whose element is to be returned
|
| + * @return the element representing the compilation unit
|
| + */
|
| + CompilationUnitElement _find(
|
| + LibraryElement libraryElement, Source unitSource) {
|
| + CompilationUnitElement element = libraryElement.definingCompilationUnit;
|
| + if (element.source == unitSource) {
|
| + return element;
|
| + }
|
| + for (CompilationUnitElement partElement in libraryElement.parts) {
|
| + if (partElement.source == unitSource) {
|
| + return partElement;
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ResolveHtmlTask` resolve a specific source as an HTML file.
|
| + */
|
| +class ResolveHtmlTask extends AnalysisTask {
|
| + /**
|
| + * The source to be resolved.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The time at which the contents of the source were last modified.
|
| + */
|
| + final int modificationTime;
|
| +
|
| + /**
|
| + * The HTML unit to be resolved.
|
| + */
|
| + final ht.HtmlUnit _unit;
|
| +
|
| + /**
|
| + * The [HtmlUnit] that was resolved by this task.
|
| + */
|
| + ht.HtmlUnit _resolvedUnit;
|
| +
|
| + /**
|
| + * The element produced by resolving the source.
|
| + */
|
| + HtmlElement _element = null;
|
| +
|
| + /**
|
| + * The resolution errors that were discovered while resolving the source.
|
| + */
|
| + List<AnalysisError> _resolutionErrors = AnalysisError.NO_ERRORS;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source to be resolved
|
| + * @param modificationTime the time at which the contents of the source were last modified
|
| + * @param unit the HTML unit to be resolved
|
| + */
|
| + ResolveHtmlTask(InternalAnalysisContext context, this.source,
|
| + this.modificationTime, this._unit)
|
| + : super(context);
|
| +
|
| + HtmlElement get element => _element;
|
| +
|
| + List<AnalysisError> get resolutionErrors => _resolutionErrors;
|
| +
|
| + /**
|
| + * Return the [HtmlUnit] that was resolved by this task.
|
| + *
|
| + * @return the [HtmlUnit] that was resolved by this task
|
| + */
|
| + ht.HtmlUnit get resolvedUnit => _resolvedUnit;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + if (source == null) {
|
| + return "resolve as html null source";
|
| + }
|
| + return "resolve as html ${source.fullName}";
|
| + }
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) => visitor.visitResolveHtmlTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + //
|
| + // Build the standard HTML element.
|
| + //
|
| + HtmlUnitBuilder builder = new HtmlUnitBuilder(context);
|
| + _element = builder.buildHtmlElement(source, _unit);
|
| + RecordingErrorListener errorListener = builder.errorListener;
|
| + //
|
| + // Validate the directives
|
| + //
|
| + _unit.accept(new RecursiveXmlVisitor_ResolveHtmlTask_internalPerform(
|
| + this, errorListener));
|
| + //
|
| + // Record all resolution errors.
|
| + //
|
| + _resolutionErrors = errorListener.getErrorsForSource(source);
|
| + //
|
| + // Remember the resolved unit.
|
| + //
|
| + _resolvedUnit = _unit;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The priority of data in the cache in terms of the desirability of retaining
|
| + * some specified data about a specified source.
|
| + */
|
| +class RetentionPriority extends Enum<RetentionPriority> {
|
| + /**
|
| + * A priority indicating that a given piece of data can be removed from the
|
| + * cache without reservation.
|
| + */
|
| + static const RetentionPriority LOW = const RetentionPriority('LOW', 0);
|
| +
|
| + /**
|
| + * A priority indicating that a given piece of data should not be removed from
|
| + * the cache unless there are no sources for which the corresponding data has
|
| + * a lower priority. Currently used for data that is needed in order to finish
|
| + * some outstanding analysis task.
|
| + */
|
| + static const RetentionPriority MEDIUM = const RetentionPriority('MEDIUM', 1);
|
| +
|
| + /**
|
| + * A priority indicating that a given piece of data should not be removed from
|
| + * the cache. Currently used for data related to a priority source.
|
| + */
|
| + static const RetentionPriority HIGH = const RetentionPriority('HIGH', 2);
|
| +
|
| + static const List<RetentionPriority> values = const [LOW, MEDIUM, HIGH];
|
| +
|
| + const RetentionPriority(String name, int ordinal) : super(name, ordinal);
|
| +}
|
| +
|
| +/**
|
| + * Instances of the class `ScanDartTask` scan a specific source as a Dart file.
|
| + */
|
| +class ScanDartTask extends AnalysisTask {
|
| + /**
|
| + * The source to be scanned.
|
| + */
|
| + final Source source;
|
| +
|
| + /**
|
| + * The contents of the source.
|
| + */
|
| + final String _content;
|
| +
|
| + /**
|
| + * The token stream that was produced by scanning the source.
|
| + */
|
| + Token _tokenStream;
|
| +
|
| + /**
|
| + * The line information that was produced.
|
| + */
|
| + LineInfo _lineInfo;
|
| +
|
| + /**
|
| + * The errors that were produced by scanning the source.
|
| + */
|
| + List<AnalysisError> _errors = AnalysisError.NO_ERRORS;
|
| +
|
| + /**
|
| + * Initialize a newly created task to perform analysis within the given context.
|
| + *
|
| + * @param context the context in which the task is to be performed
|
| + * @param source the source to be parsed
|
| + * @param content the contents of the source
|
| + */
|
| + ScanDartTask(InternalAnalysisContext context, this.source, this._content)
|
| + : super(context);
|
| +
|
| + /**
|
| + * Return the errors that were produced by scanning the source, or `null` if the task has
|
| + * not yet been performed or if an exception occurred.
|
| + *
|
| + * @return the errors that were produced by scanning the source
|
| + */
|
| + List<AnalysisError> get errors => _errors;
|
| +
|
| + /**
|
| + * Return the line information that was produced, or `null` if the task has not yet been
|
| + * performed or if an exception occurred.
|
| + *
|
| + * @return the line information that was produced
|
| + */
|
| + LineInfo get lineInfo => _lineInfo;
|
| +
|
| + @override
|
| + String get taskDescription {
|
| + if (source == null) {
|
| + return "scan as dart null source";
|
| + }
|
| + return "scan as dart ${source.fullName}";
|
| + }
|
| +
|
| + /**
|
| + * Return the token stream that was produced by scanning the source, or `null` if the task
|
| + * has not yet been performed or if an exception occurred.
|
| + *
|
| + * @return the token stream that was produced by scanning the source
|
| + */
|
| + Token get tokenStream => _tokenStream;
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) => visitor.visitScanDartTask(this);
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + PerformanceStatistics.scan.makeCurrentWhile(() {
|
| + RecordingErrorListener errorListener = new RecordingErrorListener();
|
| + try {
|
| + Scanner scanner = new Scanner(
|
| + source, new CharSequenceReader(_content), errorListener);
|
| + scanner.preserveComments = context.analysisOptions.preserveComments;
|
| + _tokenStream = scanner.tokenize();
|
| + _lineInfo = new LineInfo(scanner.lineStarts);
|
| + _errors = errorListener.getErrorsForSource(source);
|
| + } catch (exception, stackTrace) {
|
| + throw new AnalysisException(
|
| + "Exception", new CaughtException(exception, stackTrace));
|
| + }
|
| + });
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An [AnalysisContext] that only contains sources for a Dart SDK.
|
| + */
|
| +class SdkAnalysisContext extends AnalysisContextImpl {
|
| + @override
|
| + AnalysisCache createCacheFromSourceFactory(SourceFactory factory) {
|
| + if (factory == null) {
|
| + return super.createCacheFromSourceFactory(factory);
|
| + }
|
| + DartSdk sdk = factory.dartSdk;
|
| + if (sdk == null) {
|
| + throw new IllegalArgumentException(
|
| + "The source factory for an SDK analysis context must have a DartUriResolver");
|
| + }
|
| + return new AnalysisCache(
|
| + <CachePartition>[AnalysisEngine.instance.partitionManager.forSdk(sdk)]);
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * A cache partition that contains all of the sources in the SDK.
|
| + */
|
| +class SdkCachePartition extends CachePartition {
|
| + /**
|
| + * Initialize a newly created partition. The [context] is the context that
|
| + * owns this partition. The [maxCacheSize] is the maximum number of sources
|
| + * for which AST structures should be kept in the cache.
|
| + */
|
| + SdkCachePartition(InternalAnalysisContext context, int maxCacheSize)
|
| + : super(context, maxCacheSize, DefaultRetentionPolicy.POLICY);
|
| +
|
| + @override
|
| + bool contains(Source source) => source.isInSystemLibrary;
|
| +}
|
| +
|
| +/**
|
| + * The information cached by an analysis context about an individual source, no
|
| + * matter what kind of source it is.
|
| + */
|
| +abstract class SourceEntry {
|
| + /**
|
| + * The data descriptor representing the contents of the source.
|
| + */
|
| + static final DataDescriptor<String> CONTENT =
|
| + new DataDescriptor<String>("SourceEntry.CONTENT");
|
| +
|
| + /**
|
| + * The data descriptor representing the errors resulting from reading the
|
| + * source content.
|
| + */
|
| + static final DataDescriptor<List<AnalysisError>> CONTENT_ERRORS =
|
| + new DataDescriptor<List<AnalysisError>>(
|
| + "SourceEntry.CONTENT_ERRORS", AnalysisError.NO_ERRORS);
|
| +
|
| + /**
|
| + * The data descriptor representing the line information.
|
| + */
|
| + static final DataDescriptor<LineInfo> LINE_INFO =
|
| + new DataDescriptor<LineInfo>("SourceEntry.LINE_INFO");
|
| +
|
| + /**
|
| + * The index of the flag indicating whether the source was explicitly added to
|
| + * the context or whether the source was implicitly added because it was
|
| + * referenced by another source.
|
| + */
|
| + static int _EXPLICITLY_ADDED_FLAG = 0;
|
| +
|
| + /**
|
| + * A table mapping data descriptors to a count of the number of times a value
|
| + * was set when in a given state.
|
| + */
|
| + static final Map<DataDescriptor, Map<CacheState, int>> transitionMap =
|
| + new HashMap<DataDescriptor, Map<CacheState, int>>();
|
| +
|
| + /**
|
| + * The most recent time at which the state of the source matched the state
|
| + * represented by this entry.
|
| + */
|
| + int modificationTime = 0;
|
| +
|
| + /**
|
| + * The exception that caused one or more values to have a state of
|
| + * [CacheState.ERROR].
|
| + */
|
| + CaughtException exception;
|
| +
|
| + /**
|
| + * A bit-encoding of boolean flags associated with this element.
|
| + */
|
| + int _flags = 0;
|
| +
|
| + /**
|
| + * A table mapping data descriptors to the cached results for those
|
| + * descriptors.
|
| + */
|
| + Map<DataDescriptor, CachedResult> resultMap =
|
| + new HashMap<DataDescriptor, CachedResult>();
|
| +
|
| + /**
|
| + * Return all of the errors associated with this entry.
|
| + */
|
| + List<AnalysisError> get allErrors {
|
| + return getValue(CONTENT_ERRORS);
|
| + }
|
| +
|
| + /**
|
| + * Get a list of all the library-independent descriptors for which values may
|
| + * be stored in this SourceEntry.
|
| + */
|
| + List<DataDescriptor> get descriptors {
|
| + return <DataDescriptor>[CONTENT, CONTENT_ERRORS, LINE_INFO];
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the source was explicitly added to the context or `false`
|
| + * if the source was implicitly added because it was referenced by another
|
| + * source.
|
| + */
|
| + bool get explicitlyAdded => _getFlag(_EXPLICITLY_ADDED_FLAG);
|
| +
|
| + /**
|
| + * Set whether the source was explicitly added to the context to match the
|
| + * [explicitlyAdded] flag.
|
| + */
|
| + void set explicitlyAdded(bool explicitlyAdded) {
|
| + _setFlag(_EXPLICITLY_ADDED_FLAG, explicitlyAdded);
|
| + }
|
| +
|
| + /**
|
| + * Return the kind of the source, or `null` if the kind is not currently
|
| + * cached.
|
| + */
|
| + SourceKind get kind;
|
| +
|
| + /**
|
| + * Fix the state of the [exception] to match the current state of the entry.
|
| + */
|
| + void fixExceptionState() {
|
| + if (hasErrorState()) {
|
| + if (exception == null) {
|
| + //
|
| + // This code should never be reached, but is a fail-safe in case an
|
| + // exception is not recorded when it should be.
|
| + //
|
| + String message = "State set to ERROR without setting an exception";
|
| + exception = new CaughtException(new AnalysisException(message), null);
|
| + }
|
| + } else {
|
| + exception = null;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return a textual representation of the difference between the [oldEntry]
|
| + * and this entry. The difference is represented as a sequence of fields whose
|
| + * value would change if the old entry were converted into the new entry.
|
| + */
|
| + String getDiff(SourceEntry oldEntry) {
|
| + StringBuffer buffer = new StringBuffer();
|
| + _writeDiffOn(buffer, oldEntry);
|
| + return buffer.toString();
|
| + }
|
| +
|
| + /**
|
| + * Return the state of the data represented by the given [descriptor].
|
| + */
|
| + CacheState getState(DataDescriptor descriptor) {
|
| + if (!_isValidDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + CachedResult result = resultMap[descriptor];
|
| + if (result == null) {
|
| + return CacheState.INVALID;
|
| + }
|
| + return result.state;
|
| + }
|
| +
|
| + /**
|
| + * Return the value of the data represented by the given [descriptor], or
|
| + * `null` if the data represented by the descriptor is not valid.
|
| + */
|
| + /*<V>*/ dynamic /*V*/ getValue(DataDescriptor /*<V>*/ descriptor) {
|
| + if (!_isValidDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + CachedResult result = resultMap[descriptor];
|
| + if (result == null) {
|
| + return descriptor.defaultValue;
|
| + }
|
| + return result.value;
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if the state of any data value is [CacheState.ERROR].
|
| + */
|
| + bool hasErrorState() {
|
| + for (CachedResult result in resultMap.values) {
|
| + if (result.state == CacheState.ERROR) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + /**
|
| + * Invalidate all of the information associated with this source.
|
| + */
|
| + void invalidateAllInformation() {
|
| + setState(CONTENT, CacheState.INVALID);
|
| + setState(CONTENT_ERRORS, CacheState.INVALID);
|
| + setState(LINE_INFO, CacheState.INVALID);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to get the contents of
|
| + * the source represented by this entry. This will set the state of all
|
| + * information, including any resolution-based information, as being in error.
|
| + */
|
| + void recordContentError(CaughtException exception) {
|
| + setState(CONTENT, CacheState.ERROR);
|
| + recordScanError(exception);
|
| + }
|
| +
|
| + /**
|
| + * Record that an [exception] occurred while attempting to scan or parse the
|
| + * entry represented by this entry. This will set the state of all
|
| + * information, including any resolution-based information, as being in error.
|
| + */
|
| + void recordScanError(CaughtException exception) {
|
| + this.exception = exception;
|
| + setState(LINE_INFO, CacheState.ERROR);
|
| + }
|
| +
|
| + /**
|
| + * Set the state of the data represented by the given [descriptor] to the
|
| + * given [state].
|
| + */
|
| + void setState(DataDescriptor descriptor, CacheState state) {
|
| + if (!_isValidDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + if (state == CacheState.VALID) {
|
| + throw new ArgumentError("use setValue() to set the state to VALID");
|
| + }
|
| + _validateStateChange(descriptor, state);
|
| + if (state == CacheState.INVALID) {
|
| + resultMap.remove(descriptor);
|
| + } else {
|
| + CachedResult result =
|
| + resultMap.putIfAbsent(descriptor, () => new CachedResult(descriptor));
|
| + result.state = state;
|
| + if (state != CacheState.IN_PROCESS) {
|
| + //
|
| + // If the state is in-process, we can leave the current value in the
|
| + // cache for any 'get' methods to access.
|
| + //
|
| + result.value = descriptor.defaultValue;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Set the value of the data represented by the given [descriptor] to the
|
| + * given [value].
|
| + */
|
| + void setValue(DataDescriptor /*<V>*/ descriptor, dynamic /*V*/ value) {
|
| + if (!_isValidDescriptor(descriptor)) {
|
| + throw new ArgumentError("Invalid descriptor: $descriptor");
|
| + }
|
| + _validateStateChange(descriptor, CacheState.VALID);
|
| + CachedResult result =
|
| + resultMap.putIfAbsent(descriptor, () => new CachedResult(descriptor));
|
| + countTransition(descriptor, result);
|
| + result.state = CacheState.VALID;
|
| + result.value = value == null ? descriptor.defaultValue : value;
|
| + }
|
| +
|
| + @override
|
| + String toString() {
|
| + StringBuffer buffer = new StringBuffer();
|
| + _writeOn(buffer);
|
| + return buffer.toString();
|
| + }
|
| +
|
| + /**
|
| + * Flush the value of the data described by the [descriptor].
|
| + */
|
| + void _flush(DataDescriptor descriptor) {
|
| + CachedResult result = resultMap[descriptor];
|
| + if (result != null && result.state == CacheState.VALID) {
|
| + _validateStateChange(descriptor, CacheState.FLUSHED);
|
| + result.state = CacheState.FLUSHED;
|
| + result.value = descriptor.defaultValue;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return the value of the flag with the given [index].
|
| + */
|
| + bool _getFlag(int index) => BooleanArray.get(_flags, index);
|
| +
|
| + /**
|
| + * Return `true` if the [descriptor] is valid for this entry.
|
| + */
|
| + bool _isValidDescriptor(DataDescriptor descriptor) {
|
| + return descriptor == CONTENT ||
|
| + descriptor == CONTENT_ERRORS ||
|
| + descriptor == LINE_INFO;
|
| + }
|
| +
|
| + /**
|
| + * Set the value of the flag with the given [index] to the given [value].
|
| + */
|
| + void _setFlag(int index, bool value) {
|
| + _flags = BooleanArray.set(_flags, index, value);
|
| + }
|
| +
|
| + /**
|
| + * If the state of the value described by the given [descriptor] is changing
|
| + * from ERROR to anything else, capture the information. This is an attempt to
|
| + * discover the underlying cause of a long-standing bug.
|
| + */
|
| + void _validateStateChange(DataDescriptor descriptor, CacheState newState) {
|
| + // TODO(brianwilkerson) Decide whether we still want to capture this data.
|
| +// if (descriptor != CONTENT) {
|
| +// return;
|
| +// }
|
| +// CachedResult result = resultMap[CONTENT];
|
| +// if (result != null && result.state == CacheState.ERROR) {
|
| +// String message =
|
| +// "contentState changing from ${result.state} to $newState";
|
| +// InstrumentationBuilder builder =
|
| +// Instrumentation.builder2("SourceEntry-validateStateChange");
|
| +// builder.data3("message", message);
|
| +// //builder.data("source", source.getFullName());
|
| +// builder.record(new CaughtException(new AnalysisException(message), null));
|
| +// builder.log();
|
| +// }
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of the difference between the [oldEntry] and
|
| + * this entry to the given string [buffer]. Return `true` if some difference
|
| + * was written.
|
| + */
|
| + bool _writeDiffOn(StringBuffer buffer, SourceEntry oldEntry) {
|
| + bool needsSeparator = false;
|
| + CaughtException oldException = oldEntry.exception;
|
| + if (!identical(oldException, exception)) {
|
| + buffer.write("exception = ");
|
| + buffer.write(oldException.runtimeType);
|
| + buffer.write(" -> ");
|
| + buffer.write(exception.runtimeType);
|
| + needsSeparator = true;
|
| + }
|
| + int oldModificationTime = oldEntry.modificationTime;
|
| + if (oldModificationTime != modificationTime) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write("time = ");
|
| + buffer.write(oldModificationTime);
|
| + buffer.write(" -> ");
|
| + buffer.write(modificationTime);
|
| + needsSeparator = true;
|
| + }
|
| + needsSeparator =
|
| + _writeStateDiffOn(buffer, needsSeparator, "content", CONTENT, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "contentErrors", CONTENT_ERRORS, oldEntry);
|
| + needsSeparator = _writeStateDiffOn(
|
| + buffer, needsSeparator, "lineInfo", LINE_INFO, oldEntry);
|
| + return needsSeparator;
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of this entry to the given [buffer]. The
|
| + * result should only be used for debugging purposes.
|
| + */
|
| + void _writeOn(StringBuffer buffer) {
|
| + buffer.write("time = ");
|
| + buffer.write(modificationTime);
|
| + _writeStateOn(buffer, "content", CONTENT);
|
| + _writeStateOn(buffer, "contentErrors", CONTENT_ERRORS);
|
| + _writeStateOn(buffer, "lineInfo", LINE_INFO);
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of the difference between the state of the
|
| + * value described by the given [descriptor] between the [oldEntry] and this
|
| + * entry to the given [buffer]. Return `true` if some difference was written.
|
| + */
|
| + bool _writeStateDiffOn(StringBuffer buffer, bool needsSeparator, String label,
|
| + DataDescriptor descriptor, SourceEntry oldEntry) {
|
| + CacheState oldState = oldEntry.getState(descriptor);
|
| + CacheState newState = getState(descriptor);
|
| + if (oldState != newState) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write(label);
|
| + buffer.write(" = ");
|
| + buffer.write(oldState);
|
| + buffer.write(" -> ");
|
| + buffer.write(newState);
|
| + return true;
|
| + }
|
| + return needsSeparator;
|
| + }
|
| +
|
| + /**
|
| + * Write a textual representation of the state of the value described by the
|
| + * given [descriptor] to the given bugger, prefixed by the given [label] to
|
| + * the given [buffer].
|
| + */
|
| + void _writeStateOn(
|
| + StringBuffer buffer, String label, DataDescriptor descriptor) {
|
| + CachedResult result = resultMap[descriptor];
|
| + buffer.write("; ");
|
| + buffer.write(label);
|
| + buffer.write(" = ");
|
| + buffer.write(result == null ? CacheState.INVALID : result.state);
|
| + }
|
| +
|
| + /**
|
| + * Increment the count of the number of times that data represented by the
|
| + * given [descriptor] was transitioned from the current state (as found in the
|
| + * given [result] to a valid state.
|
| + */
|
| + static void countTransition(DataDescriptor descriptor, CachedResult result) {
|
| + Map<CacheState, int> countMap = transitionMap.putIfAbsent(
|
| + descriptor, () => new HashMap<CacheState, int>());
|
| + int count = countMap[result.state];
|
| + countMap[result.state] = count == null ? 1 : count + 1;
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * The priority levels used to return sources in an optimal order. A smaller
|
| + * ordinal value equates to a higher priority.
|
| + */
|
| +class SourcePriority extends Enum<SourcePriority> {
|
| + /**
|
| + * Used for a Dart source that is known to be a part contained in a library
|
| + * that was recently resolved. These parts are given a higher priority because
|
| + * there is a high probability that their AST structure is still in the cache
|
| + * and therefore would not need to be re-created.
|
| + */
|
| + static const SourcePriority PRIORITY_PART =
|
| + const SourcePriority('PRIORITY_PART', 0);
|
| +
|
| + /**
|
| + * Used for a Dart source that is known to be a library.
|
| + */
|
| + static const SourcePriority LIBRARY = const SourcePriority('LIBRARY', 1);
|
| +
|
| + /**
|
| + * Used for a Dart source whose kind is unknown.
|
| + */
|
| + static const SourcePriority UNKNOWN = const SourcePriority('UNKNOWN', 2);
|
| +
|
| + /**
|
| + * Used for a Dart source that is known to be a part but whose library has not
|
| + * yet been resolved.
|
| + */
|
| + static const SourcePriority NORMAL_PART =
|
| + const SourcePriority('NORMAL_PART', 3);
|
| +
|
| + /**
|
| + * Used for an HTML source.
|
| + */
|
| + static const SourcePriority HTML = const SourcePriority('HTML', 4);
|
| +
|
| + static const List<SourcePriority> values = const [
|
| + PRIORITY_PART,
|
| + LIBRARY,
|
| + UNKNOWN,
|
| + NORMAL_PART,
|
| + HTML
|
| + ];
|
| +
|
| + const SourcePriority(String name, int ordinal) : super(name, ordinal);
|
| +}
|
| +
|
| +/**
|
| + * [SourcesChangedEvent] indicates which sources have been added, removed,
|
| + * or whose contents have changed.
|
| + */
|
| +class SourcesChangedEvent {
|
| + /**
|
| + * The internal representation of what has changed. Clients should not access
|
| + * this field directly.
|
| + */
|
| + final ChangeSet _changeSet;
|
| +
|
| + /**
|
| + * Construct an instance representing the given changes.
|
| + */
|
| + SourcesChangedEvent(ChangeSet changeSet) : _changeSet = changeSet;
|
| +
|
| + /**
|
| + * Construct an instance representing a source content change.
|
| + */
|
| + factory SourcesChangedEvent.changedContent(Source source, String contents) {
|
| + ChangeSet changeSet = new ChangeSet();
|
| + changeSet.changedContent(source, contents);
|
| + return new SourcesChangedEvent(changeSet);
|
| + }
|
| +
|
| + /**
|
| + * Construct an instance representing a source content change.
|
| + */
|
| + factory SourcesChangedEvent.changedRange(Source source, String contents,
|
| + int offset, int oldLength, int newLength) {
|
| + ChangeSet changeSet = new ChangeSet();
|
| + changeSet.changedRange(source, contents, offset, oldLength, newLength);
|
| + return new SourcesChangedEvent(changeSet);
|
| + }
|
| +
|
| + /**
|
| + * Return the collection of sources for which content has changed.
|
| + */
|
| + Iterable<Source> get changedSources {
|
| + List<Source> changedSources = new List.from(_changeSet.changedSources);
|
| + changedSources.addAll(_changeSet.changedContents.keys);
|
| + changedSources.addAll(_changeSet.changedRanges.keys);
|
| + return changedSources;
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if any sources were added.
|
| + */
|
| + bool get wereSourcesAdded => _changeSet.addedSources.length > 0;
|
| +
|
| + /**
|
| + * Return `true` if any sources were removed or deleted.
|
| + */
|
| + bool get wereSourcesRemovedOrDeleted =>
|
| + _changeSet.removedSources.length > 0 ||
|
| + _changeSet.removedContainers.length > 0 ||
|
| + _changeSet.deletedSources.length > 0;
|
| +}
|
| +
|
| +/**
|
| + * Analysis data for which we have a modification time.
|
| + */
|
| +class TimestampedData<E> {
|
| + /**
|
| + * The modification time of the source from which the data was created.
|
| + */
|
| + final int modificationTime;
|
| +
|
| + /**
|
| + * The data that was created from the source.
|
| + */
|
| + final E data;
|
| +
|
| + /**
|
| + * Initialize a newly created holder to associate the given [data] with the
|
| + * given [modificationTime].
|
| + */
|
| + TimestampedData(this.modificationTime, this.data);
|
| +}
|
| +
|
| +/**
|
| + * A cache partition that contains all sources not contained in other
|
| + * partitions.
|
| + */
|
| +class UniversalCachePartition extends CachePartition {
|
| + /**
|
| + * Initialize a newly created partition. The [context] is the context that
|
| + * owns this partition. The [maxCacheSize] is the maximum number of sources
|
| + * for which AST structures should be kept in the cache. The [retentionPolicy]
|
| + * is the policy used to determine which pieces of data to remove from the
|
| + * cache.
|
| + */
|
| + UniversalCachePartition(InternalAnalysisContext context, int maxCacheSize,
|
| + CacheRetentionPolicy retentionPolicy)
|
| + : super(context, maxCacheSize, retentionPolicy);
|
| +
|
| + @override
|
| + bool contains(Source source) => true;
|
| +}
|
| +
|
| +/**
|
| + * The unique instances of the class `WaitForAsyncTask` represents a state in which there is
|
| + * no analysis work that can be done until some asynchronous task (such as IO) has completed, but
|
| + * where analysis is not yet complete.
|
| + */
|
| +class WaitForAsyncTask extends AnalysisTask {
|
| + /**
|
| + * The unique instance of this class.
|
| + */
|
| + static WaitForAsyncTask _UniqueInstance = new WaitForAsyncTask();
|
| +
|
| + /**
|
| + * Return the unique instance of this class.
|
| + *
|
| + * @return the unique instance of this class
|
| + */
|
| + static WaitForAsyncTask get instance => _UniqueInstance;
|
| +
|
| + /**
|
| + * Prevent the creation of instances of this class.
|
| + */
|
| + WaitForAsyncTask() : super(null);
|
| +
|
| + @override
|
| + String get taskDescription => "Waiting for async analysis";
|
| +
|
| + @override
|
| + accept(AnalysisTaskVisitor visitor) => null;
|
| +
|
| + @override
|
| + void internalPerform() {
|
| + // There is no work to be done.
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An object that manages a list of sources that need to have analysis work
|
| + * performed on them.
|
| + */
|
| +class WorkManager {
|
| + /**
|
| + * A list containing the various queues is priority order.
|
| + */
|
| + List<List<Source>> _workQueues;
|
| +
|
| + /**
|
| + * Initialize a newly created manager to have no work queued up.
|
| + */
|
| + WorkManager() {
|
| + int queueCount = SourcePriority.values.length;
|
| + _workQueues = new List<List<Source>>(queueCount);
|
| + for (int i = 0; i < queueCount; i++) {
|
| + _workQueues[i] = new List<Source>();
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Record that the given [source] needs to be analyzed. The [priority] level
|
| + * is used to control when the source will be analyzed with respect to other
|
| + * sources. If the source was previously added then it's priority is updated.
|
| + * If it was previously added with the same priority then it's position in the
|
| + * queue is unchanged.
|
| + */
|
| + void add(Source source, SourcePriority priority) {
|
| + int queueCount = _workQueues.length;
|
| + int ordinal = priority.ordinal;
|
| + for (int i = 0; i < queueCount; i++) {
|
| + List<Source> queue = _workQueues[i];
|
| + if (i == ordinal) {
|
| + if (!queue.contains(source)) {
|
| + queue.add(source);
|
| + }
|
| + } else {
|
| + queue.remove(source);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Record that the given [source] needs to be analyzed. The [priority] level
|
| + * is used to control when the source will be analyzed with respect to other
|
| + * sources. If the source was previously added then it's priority is updated.
|
| + * In either case, it will be analyzed before other sources of the same
|
| + * priority.
|
| + */
|
| + void addFirst(Source source, SourcePriority priority) {
|
| + int queueCount = _workQueues.length;
|
| + int ordinal = priority.ordinal;
|
| + for (int i = 0; i < queueCount; i++) {
|
| + List<Source> queue = _workQueues[i];
|
| + if (i == ordinal) {
|
| + queue.remove(source);
|
| + queue.insert(0, source);
|
| + } else {
|
| + queue.remove(source);
|
| + }
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Return an iterator that can be used to access the sources to be analyzed in
|
| + * the order in which they should be analyzed.
|
| + *
|
| + * <b>Note:</b> As with other iterators, no sources can be added or removed
|
| + * from this work manager while the iterator is being used. Unlike some
|
| + * implementations, however, the iterator will not detect when this
|
| + * requirement has been violated; it might work correctly, it might return the
|
| + * wrong source, or it might throw an exception.
|
| + */
|
| + WorkManager_WorkIterator iterator() => new WorkManager_WorkIterator(this);
|
| +
|
| + /**
|
| + * Record that the given source is fully analyzed.
|
| + */
|
| + void remove(Source source) {
|
| + int queueCount = _workQueues.length;
|
| + for (int i = 0; i < queueCount; i++) {
|
| + _workQueues[i].remove(source);
|
| + }
|
| + }
|
| +
|
| + @override
|
| + String toString() {
|
| + StringBuffer buffer = new StringBuffer();
|
| + List<SourcePriority> priorities = SourcePriority.values;
|
| + bool needsSeparator = false;
|
| + int queueCount = _workQueues.length;
|
| + for (int i = 0; i < queueCount; i++) {
|
| + List<Source> queue = _workQueues[i];
|
| + if (!queue.isEmpty) {
|
| + if (needsSeparator) {
|
| + buffer.write("; ");
|
| + }
|
| + buffer.write(priorities[i]);
|
| + buffer.write(": ");
|
| + int queueSize = queue.length;
|
| + for (int j = 0; j < queueSize; j++) {
|
| + if (j > 0) {
|
| + buffer.write(", ");
|
| + }
|
| + buffer.write(queue[j].fullName);
|
| + }
|
| + needsSeparator = true;
|
| + }
|
| + }
|
| + return buffer.toString();
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * An iterator that returns the sources in a work manager in the order in which
|
| + * they are to be analyzed.
|
| + */
|
| +class WorkManager_WorkIterator {
|
| + final WorkManager _manager;
|
| +
|
| + /**
|
| + * The index of the work queue through which we are currently iterating.
|
| + */
|
| + int _queueIndex = 0;
|
| +
|
| + /**
|
| + * The index of the next element of the work queue to be returned.
|
| + */
|
| + int _index = -1;
|
| +
|
| + /**
|
| + * Initialize a newly created iterator to be ready to return the first element
|
| + * in the iteration.
|
| + */
|
| + WorkManager_WorkIterator(this._manager) {
|
| + _advance();
|
| + }
|
| +
|
| + /**
|
| + * Return `true` if there is another [Source] available for processing.
|
| + */
|
| + bool get hasNext => _queueIndex < _manager._workQueues.length;
|
| +
|
| + /**
|
| + * Return the next [Source] available for processing and advance so that the
|
| + * returned source will not be returned again.
|
| + */
|
| + Source next() {
|
| + if (!hasNext) {
|
| + throw new NoSuchElementException();
|
| + }
|
| + Source source = _manager._workQueues[_queueIndex][_index];
|
| + _advance();
|
| + return source;
|
| + }
|
| +
|
| + /**
|
| + * Increment the [index] and [queueIndex] so that they are either indicating
|
| + * the next source to be returned or are indicating that there are no more
|
| + * sources to be returned.
|
| + */
|
| + void _advance() {
|
| + _index++;
|
| + if (_index >= _manager._workQueues[_queueIndex].length) {
|
| + _index = 0;
|
| + _queueIndex++;
|
| + while (_queueIndex < _manager._workQueues.length &&
|
| + _manager._workQueues[_queueIndex].isEmpty) {
|
| + _queueIndex++;
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +/**
|
| + * A helper class used to create futures for AnalysisContextImpl. Using a helper
|
| + * class allows us to preserve the generic parameter T.
|
| + */
|
| +class _AnalysisFutureHelper<T> {
|
| + final AnalysisContextImpl _context;
|
| +
|
| + _AnalysisFutureHelper(this._context);
|
| +
|
| + /**
|
| + * Return a future that will be completed with the result of calling
|
| + * [computeValue]. If [computeValue] returns non-null, the future will be
|
| + * completed immediately with the resulting value. If it returns null, then
|
| + * it will be re-executed in the future, after the next time the cached
|
| + * information for [source] has changed. If [computeValue] throws an
|
| + * exception, the future will fail with that exception.
|
| + *
|
| + * If the [computeValue] still returns null after there is no further
|
| + * analysis to be done for [source], then the future will be completed with
|
| + * the error AnalysisNotScheduledError.
|
| + *
|
| + * Since [computeValue] will be called while the state of analysis is being
|
| + * updated, it should be free of side effects so that it doesn't cause
|
| + * reentrant changes to the analysis state.
|
| + */
|
| + CancelableFuture<T> computeAsync(
|
| + Source source, T computeValue(SourceEntry sourceEntry)) {
|
| + if (_context.isDisposed) {
|
| + // No further analysis is expected, so return a future that completes
|
| + // immediately with AnalysisNotScheduledError.
|
| + return new CancelableFuture.error(new AnalysisNotScheduledError());
|
| + }
|
| + SourceEntry sourceEntry = _context.getReadableSourceEntryOrNull(source);
|
| + if (sourceEntry == null) {
|
| + return new CancelableFuture.error(new AnalysisNotScheduledError());
|
| + }
|
| + PendingFuture pendingFuture =
|
| + new PendingFuture<T>(_context, source, computeValue);
|
| + if (!pendingFuture.evaluate(sourceEntry)) {
|
| + _context._pendingFutureSources
|
| + .putIfAbsent(source, () => <PendingFuture>[])
|
| + .add(pendingFuture);
|
| + }
|
| + return pendingFuture.future;
|
| + }
|
| +}
|
|
|
Chromium Code Reviews
Issue 1346773002:
Stop running pub get at gclient sync time and fix build bugs (Closed)
Base URL: git@github.com:domokit/mojo.git@master