/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.netbeans.modules.languages.antlr;

import javax.swing.event.ChangeListener;
import org.netbeans.modules.parsing.api.Snapshot;
import org.netbeans.modules.parsing.api.Task;
import org.netbeans.modules.parsing.spi.ParseException;
import org.netbeans.modules.parsing.spi.SourceModificationEvent;

/**
 *
 * @author lkishalmi
 */
public abstract class AntlrParser extends org.netbeans.modules.parsing.spi.Parser {


    AntlrParserResult lastResult;

    protected abstract AntlrParserResult<?> createParserResult(Snapshot snapshot);

    @Override
    public void parse(Snapshot snapshot, Task task, SourceModificationEvent event) throws ParseException {
        AntlrParserResult<?> parserResult = createParserResult(snapshot);

        lastResult = parserResult.get();
    }

    @Override
    public Result getResult(Task task) throws ParseException {
        assert lastResult != null;
        return lastResult;
    }

    @Override
    public void addChangeListener(ChangeListener changeListener) {
    }

    @Override
    public void removeChangeListener(ChangeListener changeListener) {
    }

}