/* * Copyright (C) 2014 Apple Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "TypeLocation.h" #include <wtf/FastMalloc.h> #include <wtf/HashMethod.h> #include <wtf/StdUnorderedMap.h> namespace JSC { class VM; class TypeLocationCache { public: struct LocationKey { LocationKey() {} bool operator==(const LocationKey& other) const { return m_globalVariableID == other.m_globalVariableID && m_sourceID == other.m_sourceID && m_start == other.m_start && m_end == other.m_end; } unsigned hash() const { return m_globalVariableID + m_sourceID + m_start + m_end; } GlobalVariableID m_globalVariableID; intptr_t m_sourceID; unsigned m_start; unsigned m_end; }; std::pair<TypeLocation*, bool> getTypeLocation(GlobalVariableID, intptr_t, unsigned start, unsigned end, RefPtr<TypeSet>&&, VM*); private: using LocationMap = StdUnorderedMap<LocationKey, TypeLocation*, HashMethod<LocationKey>>; LocationMap m_locationMap; }; } // namespace JSC