/* 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 "misc/IntervalSet.h"
#include "atn/TransitionType.h"
namespace antlr4 {
namespace atn {
///
The default implementation returns {@code false}.
* * @return {@code true} if traversing this transition in the ATN does not * consume an input symbol; otherwise, {@code false} if traversing this * transition consumes (matches) an input symbol. */ virtual bool isEpsilon() const; virtual misc::IntervalSet label() const; virtual bool matches(size_t symbol, size_t minVocabSymbol, size_t maxVocabSymbol) const = 0; virtual std::string toString() const; Transition(Transition const&) = delete; Transition& operator=(Transition const&) = delete; protected: Transition(TransitionType transitionType, ATNState *target); private: const TransitionType _transitionType; }; using ConstTransitionPtr = std::unique_ptr