Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "builtin/RecordObject.h"
#include "jsapi.h"
#include "vm/ObjectOperations.h"
#include "vm/RecordType.h"
#include "vm/JSObject-inl.h"
using namespace js;
// Record and Record proposal section 9.2.1
RecordObject* RecordObject::create(JSContext* cx, Handle<RecordType*> record) {
RecordObject* rec = NewBuiltinClassInstance<RecordObject>(cx);
if (!rec) {
return nullptr;
}
rec->setFixedSlot(PrimitiveValueSlot, ExtendedPrimitiveValue(*record));
return rec;
}
RecordType* RecordObject::unbox() const {
return &getFixedSlot(PrimitiveValueSlot)
.toExtendedPrimitive()
.as<RecordType>();
}
bool RecordObject::maybeUnbox(JSObject* obj, MutableHandle<RecordType*> rrec) {
if (obj->is<RecordType>()) {
rrec.set(&obj->as<RecordType>());
return true;
}
if (obj->is<RecordObject>()) {
rrec.set(obj->as<RecordObject>().unbox());
return true;
}
return false;
}
bool rec_resolve(JSContext* cx, HandleObject obj, HandleId id,
bool* resolvedp) {
RootedValue value(cx);
*resolvedp = obj->as<RecordObject>().unbox()->getOwnProperty(cx, id, &value);
if (*resolvedp) {
static const unsigned RECORD_PROPERTY_ATTRS =
JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT;
return DefineDataProperty(cx, obj, id, value,
RECORD_PROPERTY_ATTRS | JSPROP_RESOLVING);
}
return true;
}
static const JSClassOps RecordObjectClassOps = {
nullptr, // addProperty
nullptr, // delProperty
nullptr, // enumerate
nullptr, // newEnumerate
rec_resolve, // resolve
nullptr, // mayResolve
nullptr, // finalize
nullptr, // call
nullptr, // construct
nullptr, // trace
};
const JSClass RecordObject::class_ = {"RecordObject",
JSCLASS_HAS_RESERVED_SLOTS(SlotCount),
&RecordObjectClassOps};