antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/PrecedencePredicateTransition.cpp


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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.
 */

#include "atn/PrecedencePredicateTransition.h"

using namespace antlr4::atn;

PrecedencePredicateTransition::PrecedencePredicateTransition(ATNState *target, int precedence)
  : AbstractPredicateTransition(target), precedence(precedence) {
}

Transition::SerializationType PrecedencePredicateTransition::getSerializationType() const {
  return PRECEDENCE;
}

bool PrecedencePredicateTransition::isEpsilon() const {
  return true;
}

bool PrecedencePredicateTransition::matches(size_t /*symbol*/, size_t /*minVocabSymbol*/, size_t /*maxVocabSymbol*/) const {
  return false;
}

Ref<SemanticContext::PrecedencePredicate> PrecedencePredicateTransition::getPredicate() const {
  return std::make_shared<SemanticContext::PrecedencePredicate>(precedence);
}

std::string PrecedencePredicateTransition::toString() const {
  return "PRECEDENCE " + Transition::toString() + " { precedence: " + std::to_string(precedence) + " }";
}