/* * [The "BSD license"] * Copyright (c) 2014 Terence Parr * Copyright (c) 2014 Sam Harwell * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.antlr.v4.runtime.atn; import org.antlr.v4.runtime.TokenStream; import org.antlr.v4.runtime.misc.NotNull; import org.antlr.v4.runtime.misc.Nullable; /** * This class represents profiling event information for tracking the lookahead * depth required in order to make a prediction. * * @since 4.3 */ public class LookaheadEventInfo extends DecisionEventInfo { /** * Constructs a new instance of the {@link LookaheadEventInfo} class with * the specified detailed lookahead information. * * @param decision The decision number * @param configs The final configuration set containing the necessary * information to determine the result of a prediction, or {@code null} if * the final configuration set is not available * @param input The input token stream * @param startIndex The start index for the current prediction * @param stopIndex The index at which the prediction was finally made * @param fullCtx {@code true} if the current lookahead is part of an LL * prediction; otherwise, {@code false} if the current lookahead is part of * an SLL prediction */ public LookaheadEventInfo(int decision, @Nullable ATNConfigSet configs, @NotNull TokenStream input, int startIndex, int stopIndex, boolean fullCtx) { super(decision, configs, input, startIndex, stopIndex, fullCtx); } }