mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-02-17 02:18:14 +00:00
129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
/*
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* Copyright (C) 2012, 2016 Apple Inc. All rights reserved.
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* Copyright (C) 2015-2016 Yusuke Suzuki <utatane.tea@gmail.com>.
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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. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "Symbol.h"
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#include "JSCJSValueInlines.h"
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#include "SymbolObject.h"
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namespace JSC {
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const ClassInfo Symbol::s_info = { "symbol", nullptr, nullptr, nullptr, CREATE_METHOD_TABLE(Symbol) };
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Symbol::Symbol(VM& vm)
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: Base(vm, vm.symbolStructure.get())
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, m_privateName()
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{
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}
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Symbol::Symbol(VM& vm, const String& string)
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: Base(vm, vm.symbolStructure.get())
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, m_privateName(PrivateName::Description, string)
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{
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}
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Symbol::Symbol(VM& vm, SymbolImpl& uid)
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: Base(vm, vm.symbolStructure.get())
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, m_privateName(uid)
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{
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}
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void Symbol::finishCreation(VM& vm)
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{
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Base::finishCreation(vm);
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ASSERT(inherits(vm, info()));
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vm.symbolImplToSymbolMap.set(&m_privateName.uid(), this);
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}
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inline SymbolObject* SymbolObject::create(VM& vm, JSGlobalObject* globalObject, Symbol* symbol)
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{
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SymbolObject* object = new (NotNull, allocateCell<SymbolObject>(vm.heap)) SymbolObject(vm, globalObject->symbolObjectStructure());
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object->finishCreation(vm, symbol);
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return object;
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}
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JSValue Symbol::toPrimitive(JSGlobalObject*, PreferredPrimitiveType) const
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{
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return const_cast<Symbol*>(this);
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}
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JSObject* Symbol::toObject(JSGlobalObject* globalObject) const
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{
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return SymbolObject::create(globalObject->vm(), globalObject, const_cast<Symbol*>(this));
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}
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double Symbol::toNumber(JSGlobalObject* globalObject) const
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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throwTypeError(globalObject, scope, "Cannot convert a symbol to a number"_s);
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return 0.0;
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}
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void Symbol::destroy(JSCell* cell)
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{
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static_cast<Symbol*>(cell)->Symbol::~Symbol();
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}
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String Symbol::descriptiveString() const
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{
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return makeString("Symbol(", String(m_privateName.uid()), ')');
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}
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String Symbol::description() const
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{
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auto& uid = m_privateName.uid();
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return uid.isNullSymbol() ? String() : uid;
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}
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Symbol* Symbol::create(VM& vm)
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{
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Symbol* symbol = new (NotNull, allocateCell<Symbol>(vm.heap)) Symbol(vm);
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symbol->finishCreation(vm);
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return symbol;
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}
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Symbol* Symbol::createWithDescription(VM& vm, const String& description)
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{
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Symbol* symbol = new (NotNull, allocateCell<Symbol>(vm.heap)) Symbol(vm, description);
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symbol->finishCreation(vm);
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return symbol;
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}
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Symbol* Symbol::create(VM& vm, SymbolImpl& uid)
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{
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if (Symbol* symbol = vm.symbolImplToSymbolMap.get(&uid))
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return symbol;
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Symbol* symbol = new (NotNull, allocateCell<Symbol>(vm.heap)) Symbol(vm, uid);
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symbol->finishCreation(vm);
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return symbol;
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}
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} // namespace JSC
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