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/*
* Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
* Copyright (C) 2021-2022 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 "JSInternalFieldObjectImpl.h"
namespace JSC {
class JSStringIterator final : public JSInternalFieldObjectImpl<2> {
public:
using Base = JSInternalFieldObjectImpl<2>;
enum class Field : uint8_t {
Index = 0,
IteratedString,
};
DECLARE_EXPORT_INFO;
static size_t allocationSize(Checked<size_t> inlineCapacity)
{
ASSERT_UNUSED(inlineCapacity, inlineCapacity == 0U);
return sizeof(JSStringIterator);
}
template<typename CellType, SubspaceAccess mode>
static GCClient::IsoSubspace* subspaceFor(VM& vm)
{
return vm.stringIteratorSpace<mode>();
}
static std::array<JSValue, numberOfInternalFields> initialValues()
{
return { {
jsNumber(0),
jsNull(),
} };
}
const WriteBarrier<Unknown>& internalField(Field field) const { return Base::internalField(static_cast<uint32_t>(field)); }
WriteBarrier<Unknown>& internalField(Field field) { return Base::internalField(static_cast<uint32_t>(field)); }
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(JSStringIteratorType, StructureFlags), info());
}
static JSStringIterator* create(VM& vm, Structure* structure, JSString* iteratedString)
{
JSStringIterator* instance = new (NotNull, allocateCell<JSStringIterator>(vm)) JSStringIterator(vm, structure);
instance->finishCreation(vm, iteratedString);
return instance;
}
JSValue iteratedString() const { return internalField(Field::IteratedString).get(); }
JSValue index() const { return internalField(Field::Index).get(); }
JSStringIterator* clone(JSGlobalObject*);
DECLARE_VISIT_CHILDREN;
private:
JSStringIterator(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
void finishCreation(VM&, JSString* iteratedString);
};
} // namespace JSC