| /* |
| * Copyright (c) 2012, the Dart project authors. |
| * |
| * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.dart.engine.internal.element; |
| |
| import com.google.dart.engine.ast.Identifier; |
| import com.google.dart.engine.element.ElementKind; |
| import com.google.dart.engine.element.ElementVisitor; |
| import com.google.dart.engine.element.LibraryElement; |
| import com.google.dart.engine.element.PrefixElement; |
| import com.google.dart.engine.utilities.translation.DartName; |
| |
| /** |
| * Instances of the class {@code PrefixElementImpl} implement a {@code PrefixElement}. |
| * |
| * @coverage dart.engine.element |
| */ |
| public class PrefixElementImpl extends ElementImpl implements PrefixElement { |
| /** |
| * An array containing all of the libraries that are imported using this prefix. |
| */ |
| private LibraryElement[] importedLibraries = LibraryElementImpl.EMPTY_ARRAY; |
| |
| /** |
| * An empty array of prefix elements. |
| */ |
| public static final PrefixElement[] EMPTY_ARRAY = new PrefixElement[0]; |
| |
| /** |
| * Initialize a newly created prefix element to have the given name. |
| * |
| * @param name the name of this element |
| */ |
| @DartName("forNode") |
| public PrefixElementImpl(Identifier name) { |
| super(name); |
| } |
| |
| /** |
| * Initialize a newly created method element to have the given name. |
| * |
| * @param name the name of this element |
| * @param nameOffset the offset of the name of this element in the file that contains the |
| * declaration of this element |
| */ |
| public PrefixElementImpl(String name, int nameOffset) { |
| super(name, nameOffset); |
| } |
| |
| @Override |
| public <R> R accept(ElementVisitor<R> visitor) { |
| return visitor.visitPrefixElement(this); |
| } |
| |
| @Override |
| public LibraryElement getEnclosingElement() { |
| return (LibraryElement) super.getEnclosingElement(); |
| } |
| |
| @Override |
| public LibraryElement[] getImportedLibraries() { |
| return importedLibraries; |
| } |
| |
| @Override |
| public ElementKind getKind() { |
| return ElementKind.PREFIX; |
| } |
| |
| /** |
| * Set the libraries that are imported using this prefix to the given libraries. |
| * |
| * @param importedLibraries the libraries that are imported using this prefix |
| */ |
| public void setImportedLibraries(LibraryElement[] importedLibraries) { |
| for (LibraryElement library : importedLibraries) { |
| ((LibraryElementImpl) library).setEnclosingElement(this); |
| } |
| this.importedLibraries = importedLibraries; |
| } |
| |
| @Override |
| protected void appendTo(StringBuilder builder) { |
| builder.append("as "); |
| super.appendTo(builder); |
| } |
| |
| @Override |
| protected String getIdentifier() { |
| // Force additional character because prefix location is just library + this identifier, |
| // and when we compare locations we ignore first character of first two components - we expect |
| // that they are URIs with URI kind character. |
| return "_" + super.getIdentifier(); |
| } |
| } |