mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
92 lines
3.6 KiB
C++
92 lines
3.6 KiB
C++
/*
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* Copyright (C) 2012-2019 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 "UnlinkedGlobalCodeBlock.h"
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namespace JSC {
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class CachedEvalCodeBlock;
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class UnlinkedEvalCodeBlock final : public UnlinkedGlobalCodeBlock {
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public:
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typedef UnlinkedGlobalCodeBlock Base;
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static constexpr unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
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template<typename CellType, SubspaceAccess mode>
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static IsoSubspace* subspaceFor(VM& vm)
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{
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return vm.unlinkedEvalCodeBlockSpace<mode>();
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}
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static UnlinkedEvalCodeBlock* create(VM& vm, const ExecutableInfo& info, OptionSet<CodeGenerationMode> codeGenerationMode)
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{
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UnlinkedEvalCodeBlock* instance = new (NotNull, allocateCell<UnlinkedEvalCodeBlock>(vm.heap)) UnlinkedEvalCodeBlock(vm, vm.unlinkedEvalCodeBlockStructure.get(), info, codeGenerationMode);
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instance->finishCreation(vm);
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return instance;
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}
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static void destroy(JSCell*);
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const Identifier& variable(unsigned index) { return m_variables[index]; }
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unsigned numVariables() { return m_variables.size(); }
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void adoptVariables(Vector<Identifier, 0, UnsafeVectorOverflow>& variables)
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{
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ASSERT(m_variables.isEmpty());
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m_variables.swap(variables);
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}
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const Identifier& functionHoistingCandidate(unsigned index) { return m_functionHoistingCandidates[index]; }
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unsigned numFunctionHoistingCandidates() { return m_functionHoistingCandidates.size(); }
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void adoptFunctionHoistingCandidates(Vector<Identifier, 0, UnsafeVectorOverflow>&& functionHoistingCandidates)
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{
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ASSERT(m_functionHoistingCandidates.isEmpty());
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m_functionHoistingCandidates = WTFMove(functionHoistingCandidates);
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}
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private:
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friend CachedEvalCodeBlock;
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UnlinkedEvalCodeBlock(VM& vm, Structure* structure, const ExecutableInfo& info, OptionSet<CodeGenerationMode> codeGenerationMode)
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: Base(vm, structure, EvalCode, info, codeGenerationMode)
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{
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}
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UnlinkedEvalCodeBlock(Decoder&, const CachedEvalCodeBlock&);
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Vector<Identifier, 0, UnsafeVectorOverflow> m_variables;
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Vector<Identifier, 0, UnsafeVectorOverflow> m_functionHoistingCandidates;
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public:
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static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
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{
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return Structure::create(vm, globalObject, proto, TypeInfo(UnlinkedEvalCodeBlockType, StructureFlags), info());
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}
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DECLARE_INFO;
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};
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}
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