mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/*
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* Copyright (C) 2013-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "DFGCompilationMode.h"
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#include <wtf/HashMap.h>
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namespace JSC {
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class CodeBlock;
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class CodeBlockSet;
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namespace DFG {
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class CompilationKey {
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public:
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CompilationKey()
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: m_profiledBlock(nullptr)
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, m_mode(InvalidCompilationMode)
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{
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}
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CompilationKey(WTF::HashTableDeletedValueType)
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: m_profiledBlock(nullptr)
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, m_mode(DFGMode)
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{
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}
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CompilationKey(CodeBlock* profiledBlock, CompilationMode mode)
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: m_profiledBlock(profiledBlock)
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, m_mode(mode)
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{
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}
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bool operator!() const
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{
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return !m_profiledBlock && m_mode == InvalidCompilationMode;
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}
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bool isHashTableDeletedValue() const
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{
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return !m_profiledBlock && m_mode != InvalidCompilationMode;
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}
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CodeBlock* profiledBlock() const { return m_profiledBlock; }
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CompilationMode mode() const { return m_mode; }
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bool operator==(const CompilationKey& other) const
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{
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return m_profiledBlock == other.m_profiledBlock
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&& m_mode == other.m_mode;
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}
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unsigned hash() const
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{
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return WTF::pairIntHash(WTF::PtrHash<CodeBlock*>::hash(m_profiledBlock), m_mode);
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}
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void dump(PrintStream&) const;
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private:
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CodeBlock* m_profiledBlock;
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CompilationMode m_mode;
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};
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struct CompilationKeyHash {
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static unsigned hash(const CompilationKey& key) { return key.hash(); }
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static bool equal(const CompilationKey& a, const CompilationKey& b) { return a == b; }
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static constexpr bool safeToCompareToEmptyOrDeleted = true;
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};
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} } // namespace JSC::DFG
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namespace WTF {
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template<typename T> struct DefaultHash;
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template<> struct DefaultHash<JSC::DFG::CompilationKey> : JSC::DFG::CompilationKeyHash { };
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template<typename T> struct HashTraits;
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template<> struct HashTraits<JSC::DFG::CompilationKey> : SimpleClassHashTraits<JSC::DFG::CompilationKey> { };
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} // namespace WTF
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