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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 QV4ARGUMENTSOBJECTS_H
#define QV4ARGUMENTSOBJECTS_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 "qv4object_p.h"
QT_BEGIN_NAMESPACE
namespace QV4 {
namespace Heap {
#define ArgumentsObjectMembers(class, Member) \
Member(class, Pointer, CallContext *, context) \
Member(class, NoMark, bool, fullyCreated) \
Member(class, NoMark, uint, argCount) \
Member(class, NoMark, quint64, mapped)
DECLARE_HEAP_OBJECT(ArgumentsObject, Object) {
DECLARE_MARKOBJECTS(ArgumentsObject)
enum {
LengthPropertyIndex = 0,
SymbolIteratorPropertyIndex = 1,
CalleePropertyIndex = 2
};
void init(CppStackFrame *frame);
};
#define StrictArgumentsObjectMembers(class, Member)
DECLARE_HEAP_OBJECT(StrictArgumentsObject, Object) {
enum {
LengthPropertyIndex = 0,
SymbolIteratorPropertyIndex = 1,
CalleePropertyIndex = 2,
CalleeSetterPropertyIndex = 3
};
void init(JSTypesStackFrame *frame);
};
}
struct ArgumentsObject: Object {
V4_OBJECT2(ArgumentsObject, Object)
Q_MANAGED_TYPE(ArgumentsObject)
Heap::CallContext *context() const { return d()->context; }
bool fullyCreated() const { return d()->fullyCreated; }
static bool isNonStrictArgumentsObject(Managed *m) {
return m->vtable() == staticVTable();
}
static bool virtualDefineOwnProperty(Managed *m, PropertyKey id, const Property *desc, PropertyAttributes attrs);
static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty);
static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver);
static bool virtualDeleteProperty(Managed *m, PropertyKey id);
static PropertyAttributes virtualGetOwnProperty(const Managed *m, PropertyKey id, Property *p);
static qint64 virtualGetLength(const Managed *m);
static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target);
void fullyCreate();
// There's a slight hack here, as this limits the amount of mapped arguments to 64, but that should be
// more than enough for all practical uses of arguments
bool isMapped(uint arg) const {
return arg < 64 && (d()->mapped & (1ull << arg));
}
void removeMapping(uint arg) {
if (arg < 64)
(d()->mapped &= ~(1ull << arg));
}
};
struct StrictArgumentsObject : Object {
V4_OBJECT2(StrictArgumentsObject, Object)
Q_MANAGED_TYPE(ArgumentsObject)
};
}
QT_END_NAMESPACE
#endif
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