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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QV4OBJECTITERATOR_H
#define QV4OBJECTITERATOR_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qv4global_p.h"
#include "qv4object_p.h"
QT_BEGIN_NAMESPACE
namespace QV4 {
struct Q_QML_EXPORT ObjectIterator
{
enum Flags {
NoFlags = 0,
EnumerableOnly = 0x1,
WithSymbols = 0x2
};
ExecutionEngine *engine;
Object *object;
OwnPropertyKeyIterator *iterator = nullptr;
uint flags;
ObjectIterator(Scope &scope, const Object *o, uint flags)
{
engine = scope.engine;
object = static_cast<Object *>(scope.alloc());
this->flags = flags;
object->setM(o ? o->m() : nullptr);
if (o)
iterator = object->ownPropertyKeys(object);
}
~ObjectIterator()
{
delete iterator;
}
PropertyKey next(Property *pd = nullptr, PropertyAttributes *attributes = nullptr);
ReturnedValue nextPropertyName(Value *value);
ReturnedValue nextPropertyNameAsString(Value *value);
ReturnedValue nextPropertyNameAsString();
};
namespace Heap {
#define ForInIteratorObjectMembers(class, Member) \
Member(class, Pointer, Object *, object) \
Member(class, Pointer, Object *, current) \
Member(class, Pointer, Object *, target) \
Member(class, NoMark, OwnPropertyKeyIterator *, iterator)
DECLARE_HEAP_OBJECT(ForInIteratorObject, Object) {
void init(QV4::Object *o);
Value workArea[2];
static void markObjects(Heap::Base *that, MarkStack *markStack);
void destroy();
};
}
struct ForInIteratorPrototype : Object
{
V4_PROTOTYPE(iteratorPrototype)
void init(ExecutionEngine *engine);
static ReturnedValue method_next(const FunctionObject *b, const Value *thisObject, const Value *argv, int argc);
};
struct ForInIteratorObject: Object {
V4_OBJECT2(ForInIteratorObject, Object)
Q_MANAGED_TYPE(ForInIterator)
V4_PROTOTYPE(forInIteratorPrototype)
V4_NEEDS_DESTROY
PropertyKey nextProperty() const;
};
inline
void Heap::ForInIteratorObject::init(QV4::Object *o)
{
Object::init();
if (!o)
return;
object.set(o->engine(), o->d());
current.set(o->engine(), o->d());
Scope scope(o);
ScopedObject obj(scope);
iterator = o->ownPropertyKeys(obj.getRef());
target.set(o->engine(), obj->d());
}
}
QT_END_NAMESPACE
#endif
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