X-Git-Url: https://gitweb.ps.run/toc/blobdiff_plain/9f94b672a5dc32da5ad01742bd4e976315a30d9c..c6ad2948bb98d42f8e0883ef82cd14cd2d5eda60:/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp new file mode 100644 index 0000000..959beab --- /dev/null +++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerChannelAction.cpp @@ -0,0 +1,55 @@ +/* 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 "atn/LexerChannelAction.h" + +using namespace antlr4::atn; +using namespace antlr4::misc; + +LexerChannelAction::LexerChannelAction(int channel) : _channel(channel) { +} + +int LexerChannelAction::getChannel() const { + return _channel; +} + +LexerActionType LexerChannelAction::getActionType() const { + return LexerActionType::CHANNEL; +} + +bool LexerChannelAction::isPositionDependent() const { + return false; +} + +void LexerChannelAction::execute(Lexer *lexer) { + lexer->setChannel(_channel); +} + +size_t LexerChannelAction::hashCode() const { + size_t hash = MurmurHash::initialize(); + hash = MurmurHash::update(hash, static_cast(getActionType())); + hash = MurmurHash::update(hash, _channel); + return MurmurHash::finish(hash, 2); +} + +bool LexerChannelAction::operator == (const LexerAction &obj) const { + if (&obj == this) { + return true; + } + + const LexerChannelAction *action = dynamic_cast(&obj); + if (action == nullptr) { + return false; + } + + return _channel == action->_channel; +} + +std::string LexerChannelAction::toString() const { + return "channel(" + std::to_string(_channel) + ")"; +}