js/src/vm/ObjectImpl-inl.h@6474c204b198 (annotated)
js/src/vm/ObjectImpl-inl.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * vim: set ts=8 sts=4 et sw=4 tw=99: |
| michael@0 | 3 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef vm_ObjectImpl_inl_h |
| michael@0 | 8 | #define vm_ObjectImpl_inl_h |
| michael@0 | 9 | |
| michael@0 | 10 | #include "vm/ObjectImpl.h" |
| michael@0 | 11 | |
| michael@0 | 12 | #include "jscntxt.h" |
| michael@0 | 13 | #include "jsproxy.h" |
| michael@0 | 14 | |
| michael@0 | 15 | #include "vm/ProxyObject.h" |
| michael@0 | 16 | #include "vm/TypedArrayObject.h" |
| michael@0 | 17 | |
| michael@0 | 18 | namespace js { |
| michael@0 | 19 | |
| michael@0 | 20 | /* static */ inline bool |
| michael@0 | 21 | ObjectImpl::isExtensible(ExclusiveContext *cx, Handle<ObjectImpl*> obj, bool *extensible) |
| michael@0 | 22 | { |
| michael@0 | 23 | if (obj->asObjectPtr()->is<ProxyObject>()) { |
| michael@0 | 24 | if (!cx->shouldBeJSContext()) |
| michael@0 | 25 | return false; |
| michael@0 | 26 | HandleObject h = |
| michael@0 | 27 | HandleObject::fromMarkedLocation(reinterpret_cast<JSObject* const*>(obj.address())); |
| michael@0 | 28 | return Proxy::isExtensible(cx->asJSContext(), h, extensible); |
| michael@0 | 29 | } |
| michael@0 | 30 | |
| michael@0 | 31 | *extensible = obj->nonProxyIsExtensible(); |
| michael@0 | 32 | return true; |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | inline bool |
| michael@0 | 36 | ClassCanHaveFixedData(const Class *clasp) |
| michael@0 | 37 | { |
| michael@0 | 38 | // Normally, the number of fixed slots given an object is the maximum |
| michael@0 | 39 | // permitted for its size class. For array buffers and typed arrays we only |
| michael@0 | 40 | // use enough to cover the class reserved slots, so that the remaining |
| michael@0 | 41 | // space in the object's allocation is available for the buffer's data. |
| michael@0 | 42 | return clasp == &ArrayBufferObject::class_ || IsTypedArrayClass(clasp); |
| michael@0 | 43 | } |
| michael@0 | 44 | |
| michael@0 | 45 | inline void * |
| michael@0 | 46 | ObjectImpl::fixedData(size_t nslots) const |
| michael@0 | 47 | { |
| michael@0 | 48 | JS_ASSERT(ClassCanHaveFixedData(getClass())); |
| michael@0 | 49 | JS_ASSERT(nslots == numFixedSlots() + (hasPrivate() ? 1 : 0)); |
| michael@0 | 50 | return &fixedSlots()[nslots]; |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | } // namespace js |
| michael@0 | 54 | |
| michael@0 | 55 | #endif /* vm_ObjectImpl_inl_h */ |
