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 */
020package org.sonar.duplications.statement.matcher;
021
022import java.util.Collections;
023import java.util.List;
024
025import org.sonar.duplications.token.Token;
026import org.sonar.duplications.token.TokenQueue;
027
028/**
029 * Last token would be returned to the queue.
030 */
031public 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}