static inline void
AssertObjectPropertyFrozen(JSContext* cx, HandleNativeObject obj, uint32_t slot)
{
#ifdef DEBUG
bool frozen = false;
RootedObject property(cx, &obj->getSlot(slot).toObject());
MOZ_ALWAYS_TRUE(TestIntegrityLevel(cx, property, IntegrityLevel::Frozen, &frozen));
MOZ_ASSERT(frozen);
#endif
}
static bool
GetUnclonedValue(JSContext *cx, HandleNativeObject selfHostedObject,
HandleId id, MutableHandleValue vp)
{
vp.setUndefined();
if (JSID_IS_INT(id)) {
size_t index = JSID_TO_INT(id);
if (index < selfHostedObject->getDenseInitializedLength() &&
!selfHostedObject->getDenseElement(index).isMagic(JS_ELEMENTS_HOLE))
{
vp.set(selfHostedObject->getDenseElement(JSID_TO_INT(id)));
return true;
}
}
// Since all atoms used by self hosting are marked as permanent, any
// attempt to look up a non-permanent atom will fail. We should only
// see such atoms when code is looking for properties on the self
// hosted global which aren't present.
if (JSID_IS_STRING(id) && !JSID_TO_STRING(id)->isPermanentAtom()) {
MOZ_ASSERT(selfHostedObject->is<GlobalObject>());
RootedValue value(cx, IdToValue(id));
return js_ReportValueErrorFlags(cx, JSREPORT_ERROR, JSMSG_NO_SUCH_SELF_HOSTED_PROP,
JSDVG_IGNORE_STACK, value, NullPtr(), nullptr, nullptr);
}
RootedShape shape(cx, selfHostedObject->lookupPure(id));
if (!shape) {
RootedValue value(cx, IdToValue(id));
return js_ReportValueErrorFlags(cx, JSREPORT_ERROR, JSMSG_NO_SUCH_SELF_HOSTED_PROP,
JSDVG_IGNORE_STACK, value, NullPtr(), nullptr, nullptr);
}
MOZ_ASSERT(shape->hasSlot() && shape->hasDefaultGetter());
vp.set(selfHostedObject->getSlot(shape->slot()));
return true;
}
static bool
FreezeObjectProperty(JSContext* cx, HandleNativeObject obj, uint32_t slot)
{
RootedObject property(cx, &obj->getSlot(slot).toObject());
return FreezeObject(cx, property);
}
static inline bool
IsObjectPropertyFrozen(JSContext* cx, HandleNativeObject obj, uint32_t slot)
{
RootedObject property(cx, &obj->getSlot(slot).toObject());
return IsObjectFrozen(cx, property);
}