/*******************************************************************************
 * 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 java.util.List;


/**
 * UseStatement AST node type.
 *
 * @author Albert Ho
 * @author David Murray
 */
public class UseStatement extends Node {

	private List<Name> name_plus;	// List of Names
	private SettingsBlock settingsBlockOpt;

	public UseStatement(List<Name> name_plus, SettingsBlock settingsBlockOpt, int startOffset, int endOffset) {
		super(startOffset, endOffset);
		
		this.name_plus = setParent(name_plus);
		if(settingsBlockOpt != null) {
			this.settingsBlockOpt = settingsBlockOpt;
			settingsBlockOpt.setParent(this);
		}
	}
	
	public List<Name> getNames() {
		return name_plus;
	}
	
	public boolean hasSettingsBlock() {
		return settingsBlockOpt != null;
	}
	
	public SettingsBlock getSettingsBlock() {
		return settingsBlockOpt;
	}
	
	public void accept(IASTVisitor visitor) {
		boolean visitChildren = visitor.visit(this);
		if(visitChildren) {
			acceptChildren(visitor, name_plus);
			if(settingsBlockOpt != null) settingsBlockOpt.accept(visitor);
		}
		visitor.endVisit(this);
	}
    
   protected Object clone() throws CloneNotSupportedException {
   		SettingsBlock newSettingsBlockOpt = settingsBlockOpt != null ? (SettingsBlock)settingsBlockOpt.clone() : null;
   		
		return new UseStatement(cloneList(name_plus), newSettingsBlockOpt, getOffset(), getOffset() + getLength());
	}
}