| /******************************************************************************* |
| * Copyright (c) 2001, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jem.internal.proxy.initParser; |
| |
| import org.eclipse.jem.internal.proxy.common.MethodHelper; |
| |
| /* |
| |
| |
| */ |
| |
| |
| public class NullLiteral extends Expression { |
| public NullLiteral(){ |
| } |
| /** |
| * evaluate method comment. |
| */ |
| public Object evaluate() { |
| return null; |
| } |
| /** |
| * evaluate method comment. |
| */ |
| public Class getTypeClass(){ |
| return MethodHelper.NULL_TYPE; |
| } |
| |
| protected String getTypeClassName() { |
| return MethodHelper.NULL_TYPE.getName(); |
| } |
| /** |
| * true or false cannot consume any kind of expression so we must return null |
| */ |
| public Expression push(char[] token , char delimiter){ |
| return null; |
| } |
| |
| public boolean isComplete(){ |
| return true; |
| } |
| |
| /** |
| * Null is not primitive |
| */ |
| public boolean isPrimitive() { |
| return false; |
| } |
| } |
| |
| |