mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
/*
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* Copyright (C) 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 "DirectArguments.h"
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#include "JSBigInt.h"
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#include "JSLexicalEnvironment.h"
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#include "JSModuleEnvironment.h"
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namespace JSC {
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inline constexpr bool isDynamicallySizedType(JSType type)
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{
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if (type == DirectArgumentsType
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|| type == FinalObjectType
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|| type == LexicalEnvironmentType
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|| type == ModuleEnvironmentType)
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return true;
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return false;
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}
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inline size_t cellSize(VM& vm, JSCell* cell)
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{
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Structure* structure = cell->structure(vm);
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const ClassInfo* classInfo = structure->classInfo();
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JSType cellType = cell->type();
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if (isDynamicallySizedType(cellType)) {
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switch (cellType) {
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case DirectArgumentsType: {
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auto* args = jsCast<DirectArguments*>(cell);
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return DirectArguments::allocationSize(args->m_minCapacity);
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}
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case FinalObjectType:
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return JSFinalObject::allocationSize(structure->inlineCapacity());
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case LexicalEnvironmentType: {
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auto* env = jsCast<JSLexicalEnvironment*>(cell);
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return JSLexicalEnvironment::allocationSize(env->symbolTable());
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}
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case ModuleEnvironmentType: {
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auto* env = jsCast<JSModuleEnvironment*>(cell);
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return JSModuleEnvironment::allocationSize(env->symbolTable());
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}
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default:
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RELEASE_ASSERT_NOT_REACHED();
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}
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}
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return classInfo->staticClassSize;
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}
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} // namespace JSC
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