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/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
using Antlr4.Runtime;
using Antlr4.Runtime.Atn;
using Antlr4.Runtime.Sharpen;
namespace Antlr4.Runtime.Atn
{
/// <summary>
/// This class represents profiling event information for tracking the lookahead
/// depth required in order to make a prediction.
/// </summary>
/// <remarks>
/// This class represents profiling event information for tracking the lookahead
/// depth required in order to make a prediction.
/// </remarks>
/// <since>4.3</since>
public class LookaheadEventInfo : DecisionEventInfo
{
/// <summary>The alternative chosen by adaptivePredict(), not necessarily
/// the outermost alt shown for a rule; left-recursive rules have
/// user-level alts that differ from the rewritten rule with a (...) block
/// and a (..)* loop.
/// </summary>
public int predictedAlt;
/// <summary>
/// Constructs a new instance of the
/// <see cref="LookaheadEventInfo"/>
/// class with
/// the specified detailed lookahead information.
/// </summary>
/// <param name="decision">The decision number</param>
/// <param name="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>
/// <param name="predictedAlt"></param>
/// <param name="input">The input token stream</param>
/// <param name="startIndex">The start index for the current prediction</param>
/// <param name="stopIndex">The index at which the prediction was finally made</param>
/// <param name="fullCtx">
/// <see langword="true"/>
/// if the current lookahead is part of an LL
/// prediction; otherwise,
/// <see langword="false"/>
/// if the current lookahead is part of
/// an SLL prediction
/// </param>
public LookaheadEventInfo(int decision, ATNConfigSet configs, int predictedAlt, ITokenStream input, int startIndex, int stopIndex, bool fullCtx)
: base(decision, configs, input, startIndex, stopIndex, fullCtx)
{
this.predictedAlt = predictedAlt;
}
}
}