001/*
002 * Copyright (C) 2009-2011 Mathias Doenitz
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 */
016
017package org.parboiled;
018
019/**
020 * An action that can optionally be skipped when run underneath a predicate matcher.
021 */
022public interface SkippableAction<V> extends Action<V> {
023
024    /**
025     * Determines whether the execution of this action is to be skipped inside of predicate matchers.
026     *
027     * @return true if this action is not to be run inside predicates
028     */
029    boolean skipInPredicates();
030
031}