bool
ArrayPushDense(JSContext *cx, HandleObject obj, HandleValue v, uint32_t *length)
{
JS_ASSERT(obj->isArray());
Value argv[] = { UndefinedValue(), ObjectValue(*obj), v };
AutoValueArray ava(cx, argv, 3);
if (!js::array_push(cx, 1, argv))
return false;
*length = argv[0].toInt32();
return true;
}
static RawObject
CloneObject(JSContext *cx, HandleObject srcObj, CloneMemory &clonedObjects)
{
CloneMemory::AddPtr p = clonedObjects.lookupForAdd(srcObj.get());
if (p)
return p->value;
RootedObject clone(cx);
if (srcObj->isFunction()) {
RootedFunction fun(cx, srcObj->toFunction());
clone = CloneFunctionObject(cx, fun, cx->global(), fun->getAllocKind());
} else if (srcObj->isRegExp()) {
RegExpObject &reobj = srcObj->asRegExp();
RootedAtom source(cx, reobj.getSource());
clone = RegExpObject::createNoStatics(cx, source, reobj.getFlags(), NULL);
} else if (srcObj->isDate()) {
clone = JS_NewDateObjectMsec(cx, srcObj->getDateUTCTime().toNumber());
} else if (srcObj->isBoolean()) {
clone = BooleanObject::create(cx, srcObj->asBoolean().unbox());
} else if (srcObj->isNumber()) {
clone = NumberObject::create(cx, srcObj->asNumber().unbox());
} else if (srcObj->isString()) {
Rooted<JSStableString*> str(cx, srcObj->asString().unbox()->ensureStable(cx));
if (!str)
return NULL;
str = js_NewStringCopyN(cx, str->chars().get(), str->length())->ensureStable(cx);
if (!str)
return NULL;
clone = StringObject::create(cx, str);
} else if (srcObj->isDenseArray()) {
return CloneDenseArray(cx, srcObj, clonedObjects);
} else {
if (srcObj->isArray()) {
clone = NewDenseEmptyArray(cx);
} else {
JS_ASSERT(srcObj->isNative());
clone = NewObjectWithClassProto(cx, srcObj->getClass(), NULL, cx->global(),
srcObj->getAllocKind());
}
}
if (!clone || !clonedObjects.relookupOrAdd(p, srcObj.get(), clone.get()) ||
!CloneProperties(cx, srcObj, clone, clonedObjects))
{
return NULL;
}
return clone;
}
bool
ArrayShiftDense(JSContext *cx, HandleObject obj, MutableHandleValue rval)
{
JS_ASSERT(obj->isArray());
AutoDetectInvalidation adi(cx, rval.address());
Value argv[] = { UndefinedValue(), ObjectValue(*obj) };
AutoValueArray ava(cx, argv, 2);
if (!js::array_shift(cx, 0, argv))
return false;
// If the result is |undefined|, the array was probably empty and we
// have to monitor the return value.
rval.set(argv[0]);
if (rval.isUndefined())
types::TypeScript::Monitor(cx, rval);
return true;
}
bool
JSStructuredCloneWriter::traverseObject(HandleObject obj)
{
/*
* Get enumerable property ids and put them in reverse order so that they
* will come off the stack in forward order.
*/
size_t initialLength = ids.length();
if (!GetPropertyNames(context(), obj, JSITER_OWNONLY, &ids))
return false;
jsid *begin = ids.begin() + initialLength, *end = ids.end();
size_t count = size_t(end - begin);
Reverse(begin, end);
/* Push obj and count to the stack. */
if (!objs.append(ObjectValue(*obj)) || !counts.append(count))
return false;
checkStack();
/* Write the header for obj. */
return out.writePair(obj->isArray() ? SCTAG_ARRAY_OBJECT : SCTAG_OBJECT_OBJECT, 0);
}
