| /******************************************************************************* |
| * Copyright (c) 2009 xored software, Inc. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * xored software, Inc. - initial API and Implementation (Vladimir Belov) |
| *******************************************************************************/ |
| |
| package org.eclipse.dltk.javascript.ast; |
| |
| import org.eclipse.dltk.ast.ASTNode; |
| import org.eclipse.dltk.ast.ASTVisitor; |
| |
| public class Identifier extends Expression implements Documentable { |
| |
| private String name; |
| private Comment documentation; |
| |
| public Identifier(JSNode parent) { |
| super(parent); |
| } |
| |
| /** |
| * @see org.eclipse.dltk.ast.ASTNode#traverse(org.eclipse.dltk.ast.ASTVisitor) |
| */ |
| @Override |
| public void traverse(ASTVisitor visitor) throws Exception { |
| if (visitor.visit(this)) { |
| visitor.endvisit(this); |
| } |
| } |
| |
| public String getName() { |
| return this.name; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| public void setDocumentation(Comment documentation) { |
| this.documentation = documentation; |
| } |
| |
| @Override |
| public Comment getDocumentation() { |
| return documentation; |
| } |
| |
| @Override |
| public String toSourceString(String indentationString) { |
| return name; |
| } |
| |
| /** |
| * Checks if this identifier is a direct symbol reference. |
| */ |
| public boolean isSymbolReference() { |
| final ASTNode parent = getParent(); |
| if (parent instanceof PropertyInitializer) { |
| return ((PropertyInitializer) parent).getName() != this; |
| } else if (parent instanceof PropertyExpression) { |
| return ((PropertyExpression) parent).getProperty() != this; |
| } else if (parent instanceof XmlAttributeIdentifier) { |
| return false; |
| } else { |
| return true; |
| } |
| } |
| |
| /** |
| * Finds the closest declaration of this identifier. Returns the declaration |
| * found or <code>null</code> if no such declaration exists or identifier is |
| * used not as symbol reference. |
| */ |
| public JSDeclaration findDeclaration() { |
| if (isSymbolReference()) { |
| JSNode parent = getParent(); |
| while (parent != null) { |
| if (parent instanceof JSScope) { |
| for (JSDeclaration declaration : ((JSScope) parent) |
| .getDeclarations()) { |
| final Identifier id = declaration.getIdentifier(); |
| if (id != null && name.equals(id.getName())) { |
| return declaration; |
| } |
| } |
| } |
| parent = parent.getParent(); |
| } |
| } |
| return null; |
| } |
| |
| } |