/* 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/ParserATNSimulator.h"

#include "Parser.h"

#include "atn/PredicateTransition.h"

#include "atn/ATN.h"

#include "atn/ATNState.h"

#include "support/Casts.h"

#include "support/CPPUtils.h"

#include "FailedPredicateException.h"

using namespace antlr4;

using namespace antlrcpp;

FailedPredicateException::FailedPredicateException(Parser *recognizer) : FailedPredicateException(recognizer, "", "") {

}

FailedPredicateException::FailedPredicateException(Parser *recognizer, const std::string &predicate): FailedPredicateException(recognizer, predicate, "") {

}

FailedPredicateException::FailedPredicateException(Parser *recognizer, const std::string &predicate, const std::string &message)

  : RecognitionException(!message.empty() ? message : "failed predicate: " + predicate + "?", recognizer,

                         recognizer->getInputStream(), recognizer->getContext(), recognizer->getCurrentToken()) {

  atn::ATNState *s = recognizer->getInterpreter<atn::ATNSimulator>()->atn.states[recognizer->getState()];

  const atn::Transition *transition = s->transitions[0].get();

  if (transition->getTransitionType() == atn::TransitionType::PREDICATE) {

    _ruleIndex = downCast<const atn::PredicateTransition&>(*transition).getRuleIndex();

    _predicateIndex = downCast<const atn::PredicateTransition&>(*transition).getPredIndex();

  } else {

    _ruleIndex = 0;

    _predicateIndex = 0;

  }

  _predicate = predicate;

}

size_t FailedPredicateException::getRuleIndex() {

  return _ruleIndex;

}

size_t FailedPredicateException::getPredIndex() {

  return _predicateIndex;

}

std::string FailedPredicateException::getPredicate() {

  return _predicate;

}