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

com.google.dart.engine.element.ConstructorElement
The interface {@code ConstructorElement} defines the behavior of elements representing aconstructor or a factory method defined within a type. @coverage dart.engine.element

   * @see StaticWarningCode#NEW_WITH_ABSTRACT_CLASS
   */
  private boolean checkForConstOrNewWithAbstractClass(InstanceCreationExpression node,
      TypeName typeName, InterfaceType type) {
    if (type.getElement().isAbstract()) {
      ConstructorElement element = node.getStaticElement();
      if (element != null && !element.isFactory()) {
        if (((KeywordToken) node.getKeyword()).getKeyword() == Keyword.CONST) {
          errorReporter.reportErrorForNode(StaticWarningCode.CONST_WITH_ABSTRACT_CLASS, typeName);
        } else {
          errorReporter.reportErrorForNode(StaticWarningCode.NEW_WITH_ABSTRACT_CLASS, typeName);
        }

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   * @param node the instance creation expression to verify
   * @return {@code true} if and only if an error code is generated on the passed node
   * @see CompileTimeErrorCode#CONST_WITH_NON_CONST
   */
  private boolean checkForConstWithNonConst(InstanceCreationExpression node) {
    ConstructorElement constructorElement = node.getStaticElement();
    if (constructorElement != null && !constructorElement.isConst()) {
      errorReporter.reportErrorForNode(CompileTimeErrorCode.CONST_WITH_NON_CONST, node);
      return true;
    }
    return false;
  }

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    if (superType == null) {
      return false;
    }
    ClassElement superElement = superType.getElement();
    // try to find default generative super constructor
    ConstructorElement superUnnamedConstructor = superElement.getUnnamedConstructor();
    if (superUnnamedConstructor != null) {
      if (superUnnamedConstructor.isFactory()) {
        errorReporter.reportErrorForNode(
            CompileTimeErrorCode.NON_GENERATIVE_CONSTRUCTOR,
            node.getName(),
            superUnnamedConstructor);
        return true;
      }
      if (superUnnamedConstructor.isDefaultConstructor()) {
        return true;
      }
    }
    // report problem
    errorReporter.reportErrorForNode(

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              initializer);
          errorReported = true;
        }
        if (node.getFactoryKeyword() == null) {
          RedirectingConstructorInvocation invocation = (RedirectingConstructorInvocation) initializer;
          ConstructorElement redirectingElement = invocation.getStaticElement();
          if (redirectingElement == null) {
            String enclosingTypeName = enclosingClass.getDisplayName();
            String constructorStrName = enclosingTypeName;
            if (invocation.getConstructorName() != null) {
              constructorStrName += '.' + invocation.getConstructorName().getName();
            }
            errorReporter.reportErrorForNode(
                CompileTimeErrorCode.REDIRECT_GENERATIVE_TO_MISSING_CONSTRUCTOR,
                invocation,
                constructorStrName,
                enclosingTypeName);
          } else {
            if (redirectingElement.isFactory()) {
              errorReporter.reportErrorForNode(
                  CompileTimeErrorCode.REDIRECT_GENERATIVE_TO_NON_GENERATIVE_CONSTRUCTOR,
                  initializer);
            }
          }

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    // OK, it is not 'const'
    if (!constructorElement.isConst()) {
      return false;
    }
    // prepare redirected constructor
    ConstructorElement redirectedConstructor = constructorElement.getRedirectedConstructor();
    if (redirectedConstructor == null) {
      return false;
    }
    // OK, it is also 'const'
    if (redirectedConstructor.isConst()) {
      return false;
    }
    // report error
    errorReporter.reportErrorForNode(
        CompileTimeErrorCode.REDIRECT_TO_NON_CONST_CONSTRUCTOR,

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    InterfaceType superType = enclosingClass.getSupertype();
    if (superType == null) {
      return false;
    }
    ClassElement superElement = superType.getElement();
    ConstructorElement superUnnamedConstructor = superElement.getUnnamedConstructor();
    if (superUnnamedConstructor != null) {
      if (superUnnamedConstructor.isFactory()) {
        errorReporter.reportErrorForNode(
            CompileTimeErrorCode.NON_GENERATIVE_CONSTRUCTOR,
            node.getReturnType(),
            superUnnamedConstructor);
        return true;
      }
      if (!superUnnamedConstructor.isDefaultConstructor()) {
        int offset;
        int length;
        {
          Identifier returnType = node.getReturnType();
          SimpleIdentifier name = node.getName();

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  /**
   * @return {@code true} if the given constructor redirects to itself, directly or indirectly
   */
  private boolean hasRedirectingFactoryConstructorCycle(ConstructorElement element) {
    Set<ConstructorElement> constructors = new HashSet<ConstructorElement>();
    ConstructorElement current = element;
    while (current != null) {
      if (constructors.contains(current)) {
        return current == element;
      }
      constructors.add(current);
      current = current.getRedirectedConstructor();
      if (current instanceof ConstructorMember) {
        current = ((ConstructorMember) current).getBaseElement();
      }
    }
    return false;

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          // TODO(brianwilkerson) Report this error?
        }
        simpleIdentifier.setStaticElement(element);
        if (node.getNewKeyword() != null) {
          if (element instanceof ClassElement) {
            ConstructorElement constructor = ((ClassElement) element).getUnnamedConstructor();
            if (constructor == null) {
              // TODO(brianwilkerson) Report this error.
            } else {
              simpleIdentifier.setStaticElement(constructor);
            }
          } else {
            // TODO(brianwilkerson) Report this error.
          }
        }
      }
    } else if (identifier instanceof PrefixedIdentifier) {
      PrefixedIdentifier prefixedIdentifier = (PrefixedIdentifier) identifier;
      SimpleIdentifier prefix = prefixedIdentifier.getPrefix();
      SimpleIdentifier name = prefixedIdentifier.getIdentifier();
      Element element = resolveSimpleIdentifier(prefix);
      if (element == null) {
//        resolver.reportError(StaticWarningCode.UNDEFINED_IDENTIFIER, prefix, prefix.getName());
      } else {
        if (element instanceof PrefixElement) {
          prefix.setStaticElement(element);
          // TODO(brianwilkerson) The prefix needs to be resolved to the element for the import that
          // defines the prefix, not the prefix's element.


          // TODO(brianwilkerson) Report this error?
          element = resolver.getNameScope().lookup(identifier, definingLibrary);
          name.setStaticElement(element);
          return null;
        }
        LibraryElement library = element.getLibrary();
        if (library == null) {
          // TODO(brianwilkerson) We need to understand how the library could ever be null.
          AnalysisEngine.getInstance().getLogger().logError(
              "Found element with null library: " + element.getName());
        } else if (!library.equals(definingLibrary)) {
          // TODO(brianwilkerson) Report this error.
        }
        name.setStaticElement(element);
        if (node.getNewKeyword() == null) {
          if (element instanceof ClassElement) {
            Element memberElement = lookupGetterOrMethod(
                ((ClassElement) element).getType(),
                name.getName());
            if (memberElement == null) {
              memberElement = ((ClassElement) element).getNamedConstructor(name.getName());
              if (memberElement == null) {
                memberElement = lookUpSetter(
                    prefix,
                    ((ClassElement) element).getType(),
                    name.getName());
              }
            }
            if (memberElement == null) {
//              reportGetterOrSetterNotFound(prefixedIdentifier, name, element.getDisplayName());
            } else {
              name.setStaticElement(memberElement);
            }
          } else {
            // TODO(brianwilkerson) Report this error.
          }
        } else {
          if (element instanceof ClassElement) {
            ConstructorElement constructor = ((ClassElement) element).getNamedConstructor(name.getName());
            if (constructor == null) {
              // TODO(brianwilkerson) Report this error.
            } else {
              name.setStaticElement(constructor);
            }

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  }


  @Override
  public Void visitConstructorDeclaration(ConstructorDeclaration node) {
    super.visitConstructorDeclaration(node);
    ConstructorElement element = node.getElement();
    if (element instanceof ConstructorElementImpl) {
      ConstructorElementImpl constructorElement = (ConstructorElementImpl) element;
      ConstructorName redirectedNode = node.getRedirectedConstructor();
      if (redirectedNode != null) {
        // set redirected factory constructor
        ConstructorElement redirectedElement = redirectedNode.getStaticElement();
        constructorElement.setRedirectedConstructor(redirectedElement);
      } else {
        // set redirected generative constructor
        for (ConstructorInitializer initializer : node.getInitializers()) {
          if (initializer instanceof RedirectingConstructorInvocation) {
            ConstructorElement redirectedElement = ((RedirectingConstructorInvocation) initializer).getStaticElement();
            constructorElement.setRedirectedConstructor(redirectedElement);
          }
        }
      }
      setMetadata(constructorElement, node);

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//        // This is part of a redirecting factory constructor; not sure which error code to use
//      }
      return null;
    }
    // look up ConstructorElement
    ConstructorElement constructor;
    SimpleIdentifier name = node.getName();
    InterfaceType interfaceType = (InterfaceType) type;
    if (name == null) {
      constructor = interfaceType.lookUpConstructor(null, definingLibrary);
    } else {

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