44 lines
1.3 KiB
C++
Executable File
44 lines
1.3 KiB
C++
Executable File
/* 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 "misc/MurmurHash.h"
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#include "Lexer.h"
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#include "support/Casts.h"
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#include "atn/LexerChannelAction.h"
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using namespace antlr4::atn;
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using namespace antlr4::misc;
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using namespace antlrcpp;
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LexerChannelAction::LexerChannelAction(int channel)
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: LexerAction(LexerActionType::CHANNEL, false), _channel(channel) {}
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void LexerChannelAction::execute(Lexer *lexer) const {
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lexer->setChannel(getChannel());
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}
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size_t LexerChannelAction::hashCodeImpl() const {
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size_t hash = MurmurHash::initialize();
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hash = MurmurHash::update(hash, static_cast<size_t>(getActionType()));
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hash = MurmurHash::update(hash, getChannel());
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return MurmurHash::finish(hash, 2);
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}
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bool LexerChannelAction::equals(const LexerAction &other) const {
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if (this == std::addressof(other)) {
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return true;
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}
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if (getActionType() != other.getActionType()) {
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return false;
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}
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const auto &lexerAction = downCast<const LexerChannelAction&>(other);
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return getChannel() == lexerAction.getChannel();
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}
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std::string LexerChannelAction::toString() const {
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return "channel(" + std::to_string(getChannel()) + ")";
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}
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