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