/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is HTML Parser C++ Translator code.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2008
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Henri Sivonen <hsivonen@iki.fi>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

package nu.validator.htmlparser.cpptranslate;

import japa.parser.ast.stmt.BreakStmt;
import japa.parser.ast.stmt.ContinueStmt;
import japa.parser.ast.visitor.VoidVisitorAdapter;

import java.util.HashSet;
import java.util.Set;

public class LabelVisitor extends VoidVisitorAdapter<Object> {

    private final Set<String> labels = new HashSet<String>();
    
    public LabelVisitor() {
    }

    /**
     * @see japa.parser.ast.visitor.VoidVisitorAdapter#visit(japa.parser.ast.stmt.BreakStmt, java.lang.Object)
     */
    @Override
    public void visit(BreakStmt n, Object arg) {
        String label = n.getId();
        if (label != null) {
            labels.add(label + "_end");
        }
    }

    /**
     * @see japa.parser.ast.visitor.VoidVisitorAdapter#visit(japa.parser.ast.stmt.ContinueStmt, java.lang.Object)
     */
    @Override
    public void visit(ContinueStmt n, Object arg) {
        String label = n.getId();
        if (label != null) {
            labels.add(label);
        }
    }

    /**
     * Returns the labels.
     * 
     * @return the labels
     */
    public Set<String> getLabels() {
        return labels;
    }
}