001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.duplications.statement.matcher;
021    
022    import java.util.Collections;
023    import java.util.List;
024    
025    import org.sonar.duplications.token.Token;
026    import org.sonar.duplications.token.TokenQueue;
027    
028    /**
029     * Last token would be returned to the queue.
030     */
031    public class ForgetLastTokenMatcher extends TokenMatcher {
032    
033      /**
034       * @return always true
035       */
036      @Override
037      public boolean matchToken(TokenQueue tokenQueue, List<Token> matchedTokenList) {
038        int last = matchedTokenList.size() - 1;
039        tokenQueue.pushForward(Collections.singletonList(matchedTokenList.get(last)));
040        matchedTokenList.remove(last);
041        return true;
042      }
043    
044    }