forked from NUDT-compiler/nudt-compiler-cpp
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32 lines
969 B
32 lines
969 B
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
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* Use of this file is governed by the BSD 3-clause license that
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* can be found in the LICENSE.txt file in the project root.
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*/
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#include "atn/EpsilonTransition.h"
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using namespace antlr4::atn;
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EpsilonTransition::EpsilonTransition(ATNState *target) : EpsilonTransition(target, INVALID_INDEX) {
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}
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EpsilonTransition::EpsilonTransition(ATNState *target, size_t outermostPrecedenceReturn)
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: Transition(TransitionType::EPSILON, target), _outermostPrecedenceReturn(outermostPrecedenceReturn) {
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}
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size_t EpsilonTransition::outermostPrecedenceReturn() const {
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return _outermostPrecedenceReturn;
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}
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bool EpsilonTransition::isEpsilon() const {
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return true;
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}
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bool EpsilonTransition::matches(size_t /*symbol*/, size_t /*minVocabSymbol*/, size_t /*maxVocabSymbol*/) const {
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return false;
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}
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std::string EpsilonTransition::toString() const {
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return "EPSILON " + Transition::toString() + " {}";
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}
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