Examples of com.google.dart.engine.source.Source

com.google.dart.engine.source.Source
The interface {@code Source} defines the behavior of objects representing source code that can beanalyzed by the analysis engine.
Implementations of this interface need to be aware of some assumptions made by the analysis engine concerning sources:
- Sources are not required to be unique. That is, there can be multiple instances representing the same source.
- Sources are long lived. That is, the engine is allowed to hold on to a source for an extended period of time and that source must continue to report accurate and up-to-date information.
Because of these assumptions, most implementations will not maintain any state but will delegate to an authoritative system of record in order to implement this API. For example, a source that represents files on disk would typically query the file system to determine the state of the file.
If the instances that implement this API are the system of record, then they will typically be unique. In that case, sources that are created that represent non-existent files must also be retained so that if those files are created at a later date the long-lived sources representing those files will know that they now exist. @coverage dart.engine.source

   * @return an entry containing the computed results
   * @throws AnalysisException if the results could not be recorded
   */
  private DartEntry recordGenerateDartErrorsTask(GenerateDartErrorsTask task)
      throws AnalysisException {
    Source source = task.getSource();
    Source librarySource = task.getLibraryElement().getSource();
    AnalysisException thrownException = task.getException();
    DartEntry dartEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {

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   * @return an entry containing the computed results
   * @throws AnalysisException if the results could not be recorded
   */
  private DartEntry recordGenerateDartHintsTask(GenerateDartHintsTask task)
      throws AnalysisException {
    Source librarySource = task.getLibraryElement().getSource();
    AnalysisException thrownException = task.getException();
    DartEntry libraryEntry = null;
    HashMap<Source, TimestampedData<AnalysisError[]>> hintMap = task.getHintMap();
    if (hintMap == null) {
      synchronized (cacheLock) {
        // We don't have any information about which sources to mark as invalid other than the library
        // source.
        SourceEntry sourceEntry = cache.get(librarySource);
        if (sourceEntry == null) {
          throw new ObsoleteSourceAnalysisException(librarySource);
        } else if (!(sourceEntry instanceof DartEntry)) {
          // This shouldn't be possible because we should never have performed the task if the source
          // didn't represent a Dart file, but check to be safe.
          throw new AnalysisException(
              "Internal error: attempting to generate hints for non-Dart file as a Dart file: "
                  + librarySource.getFullName());
        }
        if (thrownException == null) {
          thrownException = new AnalysisException(
              "GenerateDartHintsTask returned a null hint map without throwing an exception: "
                  + librarySource.getFullName());
        }
        DartEntryImpl dartCopy = ((DartEntry) sourceEntry).getWritableCopy();
        dartCopy.recordHintErrorInLibrary(librarySource, thrownException);
        cache.put(librarySource, dartCopy);
      }
      throw thrownException;
    }
    for (Map.Entry<Source, TimestampedData<AnalysisError[]>> entry : hintMap.entrySet()) {
      Source unitSource = entry.getKey();
      TimestampedData<AnalysisError[]> results = entry.getValue();
      synchronized (cacheLock) {
        SourceEntry sourceEntry = cache.get(unitSource);
        if (!(sourceEntry instanceof DartEntry)) {
          // This shouldn't be possible because we should never have performed the task if the source
          // didn't represent a Dart file, but check to be safe.
          throw new AnalysisException(
              "Internal error: attempting to parse non-Dart file as a Dart file: "
                  + unitSource.getFullName());
        }
        DartEntry dartEntry = (DartEntry) sourceEntry;
        if (unitSource.equals(librarySource)) {
          libraryEntry = dartEntry;
        }
        long sourceTime = getModificationStamp(unitSource);
        long resultTime = results.getModificationTime();
        if (sourceTime == resultTime) {
          if (dartEntry.getModificationTime() != sourceTime) {
            // The source has changed without the context being notified. Simulate notification.
            sourceChanged(unitSource);
            dartEntry = getReadableDartEntry(unitSource);
            if (dartEntry == null) {
              throw new AnalysisException("A Dart file became a non-Dart file: "
                  + unitSource.getFullName());
            }
          }
          DartEntryImpl dartCopy = dartEntry.getWritableCopy();
          if (thrownException == null) {
            dartCopy.setValueInLibrary(DartEntry.HINTS, librarySource, results.getData());

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   */
  private SourceEntry recordGetContentsTask(GetContentTask task) throws AnalysisException {
    if (!task.isComplete()) {
      return null;
    }
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    SourceEntry sourceEntry = null;
    synchronized (cacheLock) {
      sourceEntry = cache.get(source);
      if (sourceEntry == null) {

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   * @param task the task that was performed
   * @return an entry containing the computed results
   * @throws AnalysisException if the results could not be recorded
   */
  private DartEntry recordParseDartTaskResults(ParseDartTask task) throws AnalysisException {
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    DartEntry dartEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {
        throw new ObsoleteSourceAnalysisException(source);
      } else if (!(sourceEntry instanceof DartEntry)) {
        // This shouldn't be possible because we should never have performed the task if the source
        // didn't represent a Dart file, but check to be safe.
        throw new AnalysisException(
            "Internal error: attempting to parse non-Dart file as a Dart file: "
                + source.getFullName());
      }
      dartEntry = (DartEntry) sourceEntry;
      long sourceTime = getModificationStamp(source);
      long resultTime = task.getModificationTime();
      if (sourceTime == resultTime) {
        if (dartEntry.getModificationTime() != sourceTime) {
          // The source has changed without the context being notified. Simulate notification.
          sourceChanged(source);
          dartEntry = getReadableDartEntry(source);
          if (dartEntry == null) {
            throw new AnalysisException("A Dart file became a non-Dart file: "
                + source.getFullName());
          }
        }
        removeFromParts(source, dartEntry);
        DartEntryImpl dartCopy = dartEntry.getWritableCopy();
        if (thrownException == null) {
          if (task.hasNonPartOfDirective()) {
            dartCopy.setValue(DartEntry.SOURCE_KIND, SourceKind.LIBRARY);
            dartCopy.setContainingLibrary(source);
            workManager.add(source, SourcePriority.LIBRARY);
          } else if (task.hasPartOfDirective()) {
            dartCopy.setValue(DartEntry.SOURCE_KIND, SourceKind.PART);
            dartCopy.removeContainingLibrary(source);
            workManager.add(source, SourcePriority.NORMAL_PART);
          } else {
            // The file contains no directives.
            List<Source> containingLibraries = dartCopy.getContainingLibraries();
            if (containingLibraries.size() > 1
                || (containingLibraries.size() == 1 && !containingLibraries.get(0).equals(source))) {
              dartCopy.setValue(DartEntry.SOURCE_KIND, SourceKind.PART);
              dartCopy.removeContainingLibrary(source);
              workManager.add(source, SourcePriority.NORMAL_PART);
            } else {
              dartCopy.setValue(DartEntry.SOURCE_KIND, SourceKind.LIBRARY);
              dartCopy.setContainingLibrary(source);
              workManager.add(source, SourcePriority.LIBRARY);
            }
          }
          Source[] newParts = task.getIncludedSources();
          for (int i = 0; i < newParts.length; i++) {
            Source partSource = newParts[i];
            DartEntry partEntry = getReadableDartEntry(partSource);
            if (partEntry != null && partEntry != dartEntry) {
              DartEntryImpl partCopy = partEntry.getWritableCopy();
              // TODO(brianwilkerson) Change the kind of the "part" if it was marked as a library
              // and it has no directives.

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   * @param task the task that was performed
   * @return an entry containing the computed results
   * @throws AnalysisException if the results could not be recorded
   */
  private HtmlEntry recordParseHtmlTaskResults(ParseHtmlTask task) throws AnalysisException {
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    HtmlEntry htmlEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {
        throw new ObsoleteSourceAnalysisException(source);
      } else if (!(sourceEntry instanceof HtmlEntry)) {
        // This shouldn't be possible because we should never have performed the task if the source
        // didn't represent an HTML file, but check to be safe.
        throw new AnalysisException(
            "Internal error: attempting to parse non-HTML file as a HTML file: "
                + source.getFullName());
      }
      htmlEntry = (HtmlEntry) sourceEntry;
      long sourceTime = getModificationStamp(source);
      long resultTime = task.getModificationTime();
      if (sourceTime == resultTime) {
        if (htmlEntry.getModificationTime() != sourceTime) {
          // The source has changed without the context being notified. Simulate notification.
          sourceChanged(source);
          htmlEntry = getReadableHtmlEntry(source);
          if (htmlEntry == null) {
            throw new AnalysisException("An HTML file became a non-HTML file: "
                + source.getFullName());
          }
        }
        HtmlEntryImpl htmlCopy = ((HtmlEntry) sourceEntry).getWritableCopy();
        if (thrownException == null) {
          LineInfo lineInfo = task.getLineInfo();

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   * @param task the task that was performed
   * @throws AnalysisException if the results could not be recorded
   */
  private HtmlEntry recordPolymerBuildHtmlTaskResults(PolymerBuildHtmlTask task)
      throws AnalysisException {
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    HtmlEntry htmlEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {
        throw new ObsoleteSourceAnalysisException(source);
      } else if (!(sourceEntry instanceof HtmlEntry)) {
        // This shouldn't be possible because we should never have performed the task if the source
        // didn't represent an HTML file, but check to be safe.
        throw new AnalysisException(
            "Internal error: attempting to resolve non-HTML file as an HTML file: "
                + source.getFullName());
      }
      htmlEntry = (HtmlEntry) sourceEntry;
      long sourceTime = getModificationStamp(source);
      long resultTime = task.getModificationTime();
      if (sourceTime == resultTime) {
        if (htmlEntry.getModificationTime() != sourceTime) {
          // The source has changed without the context being notified. Simulate notification.
          sourceChanged(source);
          htmlEntry = getReadableHtmlEntry(source);
          if (htmlEntry == null) {
            throw new AnalysisException("An HTML file became a non-HTML file: "
                + source.getFullName());
          }
        }
        HtmlEntryImpl htmlCopy = htmlEntry.getWritableCopy();
        if (thrownException == null) {
          htmlCopy.setValue(HtmlEntry.POLYMER_BUILD_ERRORS, task.getErrors());

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   * @param task the task that was performed
   * @throws AnalysisException if the results could not be recorded
   */
  private HtmlEntry recordPolymerResolveHtmlTaskResults(PolymerResolveHtmlTask task)
      throws AnalysisException {
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    HtmlEntry htmlEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {
        throw new ObsoleteSourceAnalysisException(source);
      } else if (!(sourceEntry instanceof HtmlEntry)) {
        // This shouldn't be possible because we should never have performed the task if the source
        // didn't represent an HTML file, but check to be safe.
        throw new AnalysisException(
            "Internal error: attempting to resolve non-HTML file as an HTML file: "
                + source.getFullName());
      }
      htmlEntry = (HtmlEntry) sourceEntry;
      long sourceTime = getModificationStamp(source);
      long resultTime = task.getModificationTime();
      if (sourceTime == resultTime) {
        if (htmlEntry.getModificationTime() != sourceTime) {
          // The source has changed without the context being notified. Simulate notification.
          sourceChanged(source);
          htmlEntry = getReadableHtmlEntry(source);
          if (htmlEntry == null) {
            throw new AnalysisException("An HTML file became a non-HTML file: "
                + source.getFullName());
          }
        }
        HtmlEntryImpl htmlCopy = htmlEntry.getWritableCopy();
        if (thrownException == null) {
          htmlCopy.setValue(HtmlEntry.POLYMER_RESOLUTION_ERRORS, task.getErrors());

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   * @param task the task that was performed
   * @throws AnalysisException if the results could not be recorded
   */
  private HtmlEntry recordResolveAngularComponentTemplateTaskResults(
      ResolveAngularComponentTemplateTask task) throws AnalysisException {
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    HtmlEntry htmlEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {
        throw new ObsoleteSourceAnalysisException(source);
      } else if (!(sourceEntry instanceof HtmlEntry)) {
        // This shouldn't be possible because we should never have performed the task if the source
        // didn't represent an HTML file, but check to be safe.
        throw new AnalysisException(
            "Internal error: attempting to resolve non-HTML file as an HTML file: "
                + source.getFullName());
      }
      htmlEntry = (HtmlEntry) sourceEntry;
      long sourceTime = getModificationStamp(source);
      long resultTime = task.getModificationTime();
      if (sourceTime == resultTime) {
        if (htmlEntry.getModificationTime() != sourceTime) {
          // The source has changed without the context being notified. Simulate notification.
          sourceChanged(source);
          htmlEntry = getReadableHtmlEntry(source);
          if (htmlEntry == null) {
            throw new AnalysisException("An HTML file became a non-HTML file: "
                + source.getFullName());
          }
        }
        HtmlEntryImpl htmlCopy = htmlEntry.getWritableCopy();
        if (thrownException == null) {
          htmlCopy.setValue(HtmlEntry.ANGULAR_ERRORS, task.getResolutionErrors());

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   * @param task the task that was performed
   * @throws AnalysisException if the results could not be recorded
   */
  private HtmlEntry recordResolveAngularEntryHtmlTaskResults(ResolveAngularEntryHtmlTask task)
      throws AnalysisException {
    Source source = task.getSource();
    AnalysisException thrownException = task.getException();
    HtmlEntry htmlEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(source);
      if (sourceEntry == null) {
        throw new ObsoleteSourceAnalysisException(source);
      } else if (!(sourceEntry instanceof HtmlEntry)) {
        // This shouldn't be possible because we should never have performed the task if the source
        // didn't represent an HTML file, but check to be safe.
        throw new AnalysisException(
            "Internal error: attempting to resolve non-HTML file as an HTML file: "
                + source.getFullName());
      }
      htmlEntry = (HtmlEntry) sourceEntry;
      long sourceTime = getModificationStamp(source);
      long resultTime = task.getModificationTime();
      if (sourceTime == resultTime) {
        if (htmlEntry.getModificationTime() != sourceTime) {
          // The source has changed without the context being notified. Simulate notification.
          sourceChanged(source);
          htmlEntry = getReadableHtmlEntry(source);
          if (htmlEntry == null) {
            throw new AnalysisException("An HTML file became a non-HTML file: "
                + source.getFullName());
          }
        }
        HtmlEntryImpl htmlCopy = htmlEntry.getWritableCopy();
        if (thrownException == null) {
          htmlCopy.setValue(HtmlEntry.RESOLVED_UNIT, task.getResolvedUnit());

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   * @return an entry containing the computed results
   * @throws AnalysisException if the results could not be recorded
   */
  private DartEntry recordResolveDartUnitTaskResults(ResolveDartUnitTask task)
      throws AnalysisException {
    Source unitSource = task.getSource();
    Source librarySource = task.getLibrarySource();
    AnalysisException thrownException = task.getException();
    DartEntry dartEntry = null;
    synchronized (cacheLock) {
      SourceEntry sourceEntry = cache.get(unitSource);
      if (sourceEntry == null) {

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com.google.dart.engine.internal.builder.HtmlUnitBuilder

com.google.dart.engine.internal.cache.CachePartition

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com.google.dart.engine.internal.element.ElementImpl

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