1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/vm/ObjectImpl-inl.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,55 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef vm_ObjectImpl_inl_h
1.11 +#define vm_ObjectImpl_inl_h
1.12 +
1.13 +#include "vm/ObjectImpl.h"
1.14 +
1.15 +#include "jscntxt.h"
1.16 +#include "jsproxy.h"
1.17 +
1.18 +#include "vm/ProxyObject.h"
1.19 +#include "vm/TypedArrayObject.h"
1.20 +
1.21 +namespace js {
1.22 +
1.23 +/* static */ inline bool
1.24 +ObjectImpl::isExtensible(ExclusiveContext *cx, Handle<ObjectImpl*> obj, bool *extensible)
1.25 +{
1.26 + if (obj->asObjectPtr()->is<ProxyObject>()) {
1.27 + if (!cx->shouldBeJSContext())
1.28 + return false;
1.29 + HandleObject h =
1.30 + HandleObject::fromMarkedLocation(reinterpret_cast<JSObject* const*>(obj.address()));
1.31 + return Proxy::isExtensible(cx->asJSContext(), h, extensible);
1.32 + }
1.33 +
1.34 + *extensible = obj->nonProxyIsExtensible();
1.35 + return true;
1.36 +}
1.37 +
1.38 +inline bool
1.39 +ClassCanHaveFixedData(const Class *clasp)
1.40 +{
1.41 + // Normally, the number of fixed slots given an object is the maximum
1.42 + // permitted for its size class. For array buffers and typed arrays we only
1.43 + // use enough to cover the class reserved slots, so that the remaining
1.44 + // space in the object's allocation is available for the buffer's data.
1.45 + return clasp == &ArrayBufferObject::class_ || IsTypedArrayClass(clasp);
1.46 +}
1.47 +
1.48 +inline void *
1.49 +ObjectImpl::fixedData(size_t nslots) const
1.50 +{
1.51 + JS_ASSERT(ClassCanHaveFixedData(getClass()));
1.52 + JS_ASSERT(nslots == numFixedSlots() + (hasPrivate() ? 1 : 0));
1.53 + return &fixedSlots()[nslots];
1.54 +}
1.55 +
1.56 +} // namespace js
1.57 +
1.58 +#endif /* vm_ObjectImpl_inl_h */
