Examples of com.google.dart.engine.index.Location

com.google.dart.engine.index.Location
Instances of the class Location represent a location related to an element. The location is expressed as an offset and length, but the offset is relative to the resource containing the element rather than the start of the element within that resource. @coverage dart.engine.index

  public Void visitVariableDeclaration(VariableDeclaration node) {
    VariableElement element = node.getElement();
    // record declaration
    {
      SimpleIdentifier name = node.getName();
      Location location = createLocationFromNode(name);
      location = getLocationWithExpressionType(location, node.getInitializer());
      recordRelationship(element, IndexConstants.IS_DEFINED_BY, location);
    }
    // visit
    enterScope(element);

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   * @return the {@link Location} representing the given offset and length within the inner-most
   *         {@link Element}.
   */
  private Location createLocationFromOffset(int offset, int length) {
    Element element = peekElement();
    return new Location(element, offset, length);
  }

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  /**
   * Records the {@link Element} definition in the library and universe.
   */
  private void recordElementDefinition(Element element, Relationship relationship) {
    Location location = createLocation(element);
    recordRelationship(libraryElement, relationship, location);
    recordRelationship(IndexConstants.UNIVERSE, relationship, location);
  }

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        libraryElement,
        null,
        element,
        importElementsMap);
    if (importElement != null) {
      Location location = createLocationFromOffset(node.getOffset(), 0);
      recordRelationship(importElement, IndexConstants.IS_REFERENCED_BY, location);
    }
  }

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  private void recordImportElementReferenceWithPrefix(SimpleIdentifier prefixNode) {
    ImportElementInfo info = getImportElementInfo(prefixNode);
    if (info != null) {
      int offset = prefixNode.getOffset();
      int length = info.periodEnd - offset;
      Location location = createLocationFromOffset(offset, length);
      recordRelationship(info.element, IndexConstants.IS_REFERENCED_BY, location);
    }
  }

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   * Records reference to defining {@link CompilationUnitElement} of the given
   * {@link LibraryElement}.
   */
  private void recordLibraryReference(UriBasedDirective node, LibraryElement library) {
    if (library != null) {
      Location location = createLocationFromNode(node.getUri());
      recordRelationship(
          library.getDefiningCompilationUnit(),
          IndexConstants.IS_REFERENCED_BY,
          location);
    }

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  /**
   * Record reference to the given operator {@link Element} and name.
   */
  private void recordOperatorReference(Token operator, Element element) {
    // prepare location
    Location location = createLocationFromToken(operator);
    // record name reference
    {
      String name = operator.getLexeme();
      if (name.equals("++")) {
        name = "+";

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  public Location getLocation(AnalysisContext context, ElementCodec elementCodec) {
    Element element = elementCodec.decode(context, elementId);
    if (element == null) {
      return null;
    }
    return new Location(element, offset, length);
  }

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      Element element = readElement();
      Relationship relationship = readRelationship();
      // read Location(s)
      int numLocations = dis.readInt();
      for (int j = 0; j < numLocations; j++) {
        Location location = readLocation();
        impl.recordRelationship(element, relationship, location);
      }
    }
  }

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  private Location readLocation() throws IOException {
    Element locationElement = readElement();
    int offset = dis.readInt();
    int length = dis.readInt();
    return new Location(locationElement, offset, length);
  }

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