/*******************************************************************************
* Copyright © 2011, 2013 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.edt.compiler.core.ast;
import org.eclipse.edt.compiler.core.IEGLConstants;
/**
* NilLiteral AST node type.
*
* @author Albert Ho
* @author David Murray
*/
public class NullLiteral extends LiteralExpression {
public NullLiteral(int startOffset, int endOffset) {
super(startOffset, endOffset);
}
public void accept(IASTVisitor visitor) {
visitor.visit(this);
visitor.endVisit(this);
}
public int getLiteralKind() {
return NIL_LITERAL;
}
public String getCanonicalString() {
return IEGLConstants.KEYWORD_NULL;
}
protected Object clone() throws CloneNotSupportedException {
return new NullLiteral(getOffset(), getOffset() + getLength());
}
public String getValue() {
return "null";
}
}