/* 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.
*/
#pragma once
#include "atn/DecisionEventInfo.h"
namespace antlr4 {
namespace atn {
///
/// This class represents profiling event information for semantic predicate
/// evaluations which occur during prediction.
///
///
class ANTLR4CPP_PUBLIC PredicateEvalInfo : public DecisionEventInfo {
public:
/// The semantic context which was evaluated.
const Ref semctx;
///
/// The alternative number for the decision which is guarded by the semantic
/// context . Note that other ATN
/// configurations may predict the same alternative which are guarded by
/// other semantic contexts and/or .
///
const size_t predictedAlt;
/// The result of evaluating the semantic context .
const bool evalResult;
///
/// Constructs a new instance of the class
/// with the specified detailed predicate evaluation information.
///
/// The decision number
/// The input token stream
/// The start index for the current prediction
/// The index at which the predicate
/// evaluation was triggered. Note that the input stream may be reset to other
/// positions for the actual evaluation of individual predicates.
/// The semantic context which was evaluated
/// The results of evaluating the semantic context
/// The alternative number for the
/// decision which is guarded by the semantic context {@code semctx}. See
/// for more information. {@code true} if the semantic context was evaluated during
/// LL prediction; otherwise, {@code false} if the semantic context was
/// evaluated during SLL prediction
///
///
PredicateEvalInfo(size_t decision, TokenStream* input, size_t startIndex,
size_t stopIndex, Ref const& semctx,
bool evalResult, size_t predictedAlt, bool fullCtx);
};
} // namespace atn
} // namespace antlr4