michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef vm_ObjectImpl_inl_h
michael@0: #define vm_ObjectImpl_inl_h
michael@0: 
michael@0: #include "vm/ObjectImpl.h"
michael@0: 
michael@0: #include "jscntxt.h"
michael@0: #include "jsproxy.h"
michael@0: 
michael@0: #include "vm/ProxyObject.h"
michael@0: #include "vm/TypedArrayObject.h"
michael@0: 
michael@0: namespace js {
michael@0: 
michael@0: /* static */ inline bool
michael@0: ObjectImpl::isExtensible(ExclusiveContext *cx, Handle<ObjectImpl*> obj, bool *extensible)
michael@0: {
michael@0:     if (obj->asObjectPtr()->is<ProxyObject>()) {
michael@0:         if (!cx->shouldBeJSContext())
michael@0:             return false;
michael@0:         HandleObject h =
michael@0:             HandleObject::fromMarkedLocation(reinterpret_cast<JSObject* const*>(obj.address()));
michael@0:         return Proxy::isExtensible(cx->asJSContext(), h, extensible);
michael@0:     }
michael@0: 
michael@0:     *extensible = obj->nonProxyIsExtensible();
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: ClassCanHaveFixedData(const Class *clasp)
michael@0: {
michael@0:     // Normally, the number of fixed slots given an object is the maximum
michael@0:     // permitted for its size class. For array buffers and typed arrays we only
michael@0:     // use enough to cover the class reserved slots, so that the remaining
michael@0:     // space in the object's allocation is available for the buffer's data.
michael@0:     return clasp == &ArrayBufferObject::class_ || IsTypedArrayClass(clasp);
michael@0: }
michael@0: 
michael@0: inline void *
michael@0: ObjectImpl::fixedData(size_t nslots) const
michael@0: {
michael@0:     JS_ASSERT(ClassCanHaveFixedData(getClass()));
michael@0:     JS_ASSERT(nslots == numFixedSlots() + (hasPrivate() ? 1 : 0));
michael@0:     return &fixedSlots()[nslots];
michael@0: }
michael@0: 
michael@0: } // namespace js
michael@0: 
michael@0: #endif /* vm_ObjectImpl_inl_h */