X-Git-Url: https://gitweb.ps.run/toc/blobdiff_plain/9f94b672a5dc32da5ad01742bd4e976315a30d9c..c6ad2948bb98d42f8e0883ef82cd14cd2d5eda60:/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerIndexedCustomAction.cpp diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerIndexedCustomAction.cpp b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerIndexedCustomAction.cpp new file mode 100644 index 0000000..9ea396a --- /dev/null +++ b/antlr4-cpp-runtime-4.9.2-source/runtime/src/atn/LexerIndexedCustomAction.cpp @@ -0,0 +1,63 @@ +/* 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/CPPUtils.h" + +#include "atn/LexerIndexedCustomAction.h" + +using namespace antlr4; +using namespace antlr4::atn; +using namespace antlr4::misc; + +LexerIndexedCustomAction::LexerIndexedCustomAction(int offset, Ref const& action) + : _offset(offset), _action(action) { +} + +int LexerIndexedCustomAction::getOffset() const { + return _offset; +} + +Ref LexerIndexedCustomAction::getAction() const { + return _action; +} + +LexerActionType LexerIndexedCustomAction::getActionType() const { + return _action->getActionType(); +} + +bool LexerIndexedCustomAction::isPositionDependent() const { + return true; +} + +void LexerIndexedCustomAction::execute(Lexer *lexer) { + // assume the input stream position was properly set by the calling code + _action->execute(lexer); +} + +size_t LexerIndexedCustomAction::hashCode() const { + size_t hash = MurmurHash::initialize(); + hash = MurmurHash::update(hash, _offset); + hash = MurmurHash::update(hash, _action); + return MurmurHash::finish(hash, 2); +} + +bool LexerIndexedCustomAction::operator == (const LexerAction &obj) const { + if (&obj == this) { + return true; + } + + const LexerIndexedCustomAction *action = dynamic_cast(&obj); + if (action == nullptr) { + return false; + } + + return _offset == action->_offset && *_action == *action->_action; +} + +std::string LexerIndexedCustomAction::toString() const { + return antlrcpp::toString(this); +}