001/*
002 * Copyright 2020  nils.hoffmann.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package de.isas.lipidomics.palinom;
017
018import org.antlr.v4.runtime.ParserRuleContext;
019
020/**
021 * Generic base class for context handler implementations for the different
022 * grammar parsers.
023 *
024 * @author  nils.hoffmann
025 * @param <T> the generic {@link ParserRuleContext}
026 * @param <U> the type to return after handling.
027 */
028public interface ParserRuleContextHandler<T extends ParserRuleContext, U> {
029
030    U handle(T t);
031}