/*
 * Copyright (C) 2013 JPEXS
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.jpexs.decompiler.flash.action.parser.script;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author JPEXS
 */
public class LexBufferer implements LexListener {

    private List<ParsedSymbol> items = new ArrayList<>();

    @Override
    public void onLex(ParsedSymbol s) {
        items.add(s);
    }

    @Override
    public void onPushBack(ParsedSymbol s) {
        if (items.get(items.size() - 1) == s) {
            items.remove(items.size() - 1);
        }
    }

    public void pushAllBack(ActionScriptLexer lexer) {
        for (int i = items.size() - 1; i >= 0; i--) {
            lexer.pushback(items.get(i));
        }
        items.clear();
    }
}
