Examples of com.google.dart.engine.element.Element

com.google.dart.engine.element.Element
The interface {@code Element} defines the behavior common to all of the elements in the elementmodel. Generally speaking, the element model is a semantic model of the program that represents things that are declared with a name and hence can be referenced elsewhere in the code.
There are two exceptions to the general case. First, there are elements in the element model that are created for the convenience of various kinds of analysis but that do not have any corresponding declaration within the source code. Such elements are marked as being synthetic. Examples of synthetic elements include
- default constructors in classes that do not define any explicit constructors,
- getters and setters that are induced by explicit field declarations,
- fields that are induced by explicit declarations of getters and setters, and
- functions representing the initialization expression for a variable.
Second, there are elements in the element model that do not have a name. These correspond to unnamed functions and exist in order to more accurately represent the semantic structure of the program. @coverage dart.engine.element

    return typeArguments;
  }


  @Override
  public TypeParameterElement[] getTypeParameters() {
    Element element = getElement();
    if (element instanceof FunctionTypeAliasElement) {
      return ((FunctionTypeAliasElement) element).getTypeParameters();
    }
    ClassElement definingClass = element.getAncestor(ClassElement.class);
    if (definingClass != null) {
      return definingClass.getTypeParameters();
    }
    return TypeParameterElementImpl.EMPTY_ARRAY;
  }

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          + ") != parameterTypes.length (" + parameterTypes.length + ")");
    }
    if (argumentTypes.length == 0) {
      return this;
    }
    Element element = getElement();
    FunctionTypeImpl newType = (element instanceof ExecutableElement) ? new FunctionTypeImpl(
        (ExecutableElement) element) : new FunctionTypeImpl((FunctionTypeAliasElement) element);
    newType.setTypeArguments(substitute(typeArguments, argumentTypes, parameterTypes));
    return newType;
  }

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  /**
   * @return the base parameter elements of this function element, not {@code null}.
   */
  protected ParameterElement[] getBaseParameters() {
    Element element = getElement();
    if (element instanceof ExecutableElement) {
      return ((ExecutableElement) element).getParameters();
    } else {
      return ((FunctionTypeAliasElement) element).getParameters();
    }

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   * Return the return type defined by this function's element.
   * 
   * @return the return type defined by this function's element
   */
  private Type getBaseReturnType() {
    Element element = getElement();
    if (element instanceof ExecutableElement) {
      return ((ExecutableElement) element).getReturnType();
    } else {
      return ((FunctionTypeAliasElement) element).getReturnType();
    }

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  @Override
  public Reference getReference(int offset) {
    AstNode node = new NodeLocator(offset).searchWithin(expression);
    if (node != null) {
      Element element = ElementLocator.locate(node);
      return new Reference(element, node.getOffset(), node.getLength());
    }
    return null;
  }

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  /**
   * Returns the {@link Element} to open when requested at the given {@link Expression}.
   */
  public static Element getElementToOpen(HtmlUnit htmlUnit, Expression expression) {
    Element element = getElement(expression);
    {
      AngularElement angularElement = AngularHtmlUnitResolver.getAngularElement(element);
      if (angularElement != null) {
        return angularElement;
      }

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  @Override
  public void visitExpression(Expression expression) {
    // Formatter
    if (expression instanceof SimpleIdentifier) {
      SimpleIdentifier identifier = (SimpleIdentifier) expression;
      Element element = identifier.getBestElement();
      if (element instanceof AngularElement) {
        store.recordRelationship(
            element,
            IndexConstants.ANGULAR_REFERENCE,
            createLocationForIdentifier(identifier));

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    return super.visitHtmlUnit(node);
  }


  @Override
  public Void visitXmlAttributeNode(XmlAttributeNode node) {
    Element element = node.getElement();
    if (element != null) {
      Token nameToken = node.getNameToken();
      Location location = createLocationForToken(nameToken);
      store.recordRelationship(element, IndexConstants.ANGULAR_REFERENCE, location);
    }

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    return valid(typeProvider.getMapType(), new MapState(map));
  }


  @Override
  public EvaluationResultImpl visitMethodInvocation(MethodInvocation node) {
    Element element = node.getMethodName().getStaticElement();
    if (element instanceof FunctionElement) {
      FunctionElement function = (FunctionElement) element;
      if (function.getName().equals("identical")) {
        NodeList<Expression> arguments = node.getArgumentList().getArguments();
        if (arguments.size() == 2) {
          Element enclosingElement = function.getEnclosingElement();
          if (enclosingElement instanceof CompilationUnitElement) {
            LibraryElement library = ((CompilationUnitElement) enclosingElement).getLibrary();
            if (library.isDartCore()) {
              EvaluationResultImpl leftArgument = arguments.get(0).accept(this);
              EvaluationResultImpl rightArgument = arguments.get(1).accept(this);

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//    if (isStringLength(element)) {
//      EvaluationResultImpl target = node.getPrefix().accept(this);
//      return target.stringLength(typeProvider, node);
//    }
    SimpleIdentifier prefixNode = node.getPrefix();
    Element prefixElement = prefixNode.getStaticElement();
    if (!(prefixElement instanceof PrefixElement)) {
      EvaluationResultImpl prefixResult = prefixNode.accept(this);
      if (!(prefixResult instanceof ValidResult)) {
        return error(node, null);
      }

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