JS_GetPropertyDescArray(JSContext *cx, JSObject *obj, JSPropertyDescArray *pda)
{
assertSameCompartment(cx, obj);
Class *clasp = obj->getClass();
if (!obj->isNative() || (clasp->flags & JSCLASS_NEW_ENUMERATE)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_CANT_DESCRIBE_PROPS, clasp->name);
return JS_FALSE;
}
if (!clasp->enumerate(cx, obj))
return JS_FALSE;
/* Return an empty pda early if obj has no own properties. */
if (obj->nativeEmpty()) {
pda->length = 0;
pda->array = NULL;
return JS_TRUE;
}
uint32_t n = obj->propertyCount();
JSPropertyDesc *pd = (JSPropertyDesc *) cx->malloc_(size_t(n) * sizeof(JSPropertyDesc));
if (!pd)
return JS_FALSE;
uint32_t i = 0;
for (Shape::Range r = obj->lastProperty()->all(); !r.empty(); r.popFront()) {
if (!js_AddRoot(cx, &pd[i].id, NULL))
goto bad;
if (!js_AddRoot(cx, &pd[i].value, NULL))
goto bad;
Shape *shape = const_cast<Shape *>(&r.front());
if (!JS_GetPropertyDesc(cx, obj, reinterpret_cast<JSScopeProperty *>(shape), &pd[i]))
goto bad;
if ((pd[i].flags & JSPD_ALIAS) && !js_AddRoot(cx, &pd[i].alias, NULL))
goto bad;
if (++i == n)
break;
}
pda->length = i;
pda->array = pd;
return JS_TRUE;
bad:
pda->length = i + 1;
pda->array = pd;
JS_PutPropertyDescArray(cx, pda);
return JS_FALSE;
}
JS_GetPropertyDescArray(JSContext *cx, JSObject *obj_, JSPropertyDescArray *pda)
{
RootedObject obj(cx, obj_);
assertSameCompartment(cx, obj);
uint32_t i = 0;
JSPropertyDesc *pd = NULL;
if (obj->isDebugScope()) {
AutoIdVector props(cx);
if (!Proxy::enumerate(cx, obj, props))
return false;
pd = cx->pod_calloc<JSPropertyDesc>(props.length());
if (!pd)
return false;
for (i = 0; i < props.length(); ++i) {
pd[i].id = JSVAL_NULL;
pd[i].value = JSVAL_NULL;
if (!js_AddRoot(cx, &pd[i].id, NULL))
goto bad;
pd[i].id = IdToValue(props[i]);
if (!js_AddRoot(cx, &pd[i].value, NULL))
goto bad;
if (!Proxy::get(cx, obj, obj, props.handleAt(i), MutableHandleValue::fromMarkedLocation(&pd[i].value)))
goto bad;
}
pda->length = props.length();
pda->array = pd;
return true;
}
Class *clasp;
clasp = obj->getClass();
if (!obj->isNative() || (clasp->flags & JSCLASS_NEW_ENUMERATE)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_CANT_DESCRIBE_PROPS, clasp->name);
return false;
}
if (!clasp->enumerate(cx, obj))
return false;
/* Return an empty pda early if obj has no own properties. */
if (obj->nativeEmpty()) {
pda->length = 0;
pda->array = NULL;
return true;
}
pd = cx->pod_malloc<JSPropertyDesc>(obj->propertyCount());
if (!pd)
return false;
for (Shape::Range r = obj->lastProperty()->all(); !r.empty(); r.popFront()) {
pd[i].id = JSVAL_NULL;
pd[i].value = JSVAL_NULL;
pd[i].alias = JSVAL_NULL;
if (!js_AddRoot(cx, &pd[i].id, NULL))
goto bad;
if (!js_AddRoot(cx, &pd[i].value, NULL))
goto bad;
RootedShape shape(cx, const_cast<Shape *>(&r.front()));
if (!GetPropertyDesc(cx, obj, shape, &pd[i]))
goto bad;
if ((pd[i].flags & JSPD_ALIAS) && !js_AddRoot(cx, &pd[i].alias, NULL))
goto bad;
if (++i == obj->propertyCount())
break;
}
pda->length = i;
pda->array = pd;
return true;
bad:
pda->length = i + 1;
pda->array = pd;
JS_PutPropertyDescArray(cx, pda);
return false;
}
static bool
Snapshot(JSContext *cx, JSObject *obj, uintN flags, AutoIdVector *props)
{
IdSet ht(cx);
if (!ht.init(32))
return NULL;
JSObject *pobj = obj;
do {
Class *clasp = pobj->getClass();
if (pobj->isNative() &&
!pobj->getOps()->enumerate &&
!(clasp->flags & JSCLASS_NEW_ENUMERATE)) {
if (!clasp->enumerate(cx, pobj))
return false;
if (!EnumerateNativeProperties(cx, obj, pobj, flags, ht, props))
return false;
} else if (pobj->isDenseArray()) {
if (!EnumerateDenseArrayProperties(cx, obj, pobj, flags, ht, props))
return false;
} else {
if (pobj->isProxy()) {
AutoIdVector proxyProps(cx);
if (flags & JSITER_OWNONLY) {
if (flags & JSITER_HIDDEN) {
if (!JSProxy::getOwnPropertyNames(cx, pobj, proxyProps))
return false;
} else {
if (!JSProxy::keys(cx, pobj, proxyProps))
return false;
}
} else {
if (!JSProxy::enumerate(cx, pobj, proxyProps))
return false;
}
for (size_t n = 0, len = proxyProps.length(); n < len; n++) {
if (!Enumerate(cx, obj, pobj, proxyProps[n], true, flags, ht, props))
return false;
}
/* Proxy objects enumerate the prototype on their own, so we are done here. */
break;
}
Value state;
JSIterateOp op = (flags & JSITER_HIDDEN) ? JSENUMERATE_INIT_ALL : JSENUMERATE_INIT;
if (!pobj->enumerate(cx, op, &state, NULL))
return false;
if (state.isMagic(JS_NATIVE_ENUMERATE)) {
if (!EnumerateNativeProperties(cx, obj, pobj, flags, ht, props))
return false;
} else {
while (true) {
jsid id;
if (!pobj->enumerate(cx, JSENUMERATE_NEXT, &state, &id))
return false;
if (state.isNull())
break;
if (!Enumerate(cx, obj, pobj, id, true, flags, ht, props))
return false;
}
}
}
if ((flags & JSITER_OWNONLY) || pobj->isXML())
break;
} while ((pobj = pobj->getProto()) != NULL);
return true;
}
