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- /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* 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 file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
- /**
- * This file defines various reserved slot indices used by JavaScript
- * reflections of DOM objects.
- */
- #ifndef mozilla_dom_DOMSlots_h
- #define mozilla_dom_DOMSlots_h
- // We use slot 0 for holding the raw object. This is safe for both
- // globals and non-globals.
- // NOTE: This is baked into the Ion JIT as 0 in codegen for LGetDOMProperty and
- // LSetDOMProperty. Those constants need to be changed accordingly if this value
- // changes.
- #define DOM_OBJECT_SLOT 0
- // The total number of slots non-proxy DOM objects use by default.
- // Specific objects may have more for storing cached values.
- #define DOM_INSTANCE_RESERVED_SLOTS 1
- // Interface objects store a number of reserved slots equal to
- // DOM_INTERFACE_SLOTS_BASE + number of named constructors.
- #define DOM_INTERFACE_SLOTS_BASE 0
- // Interface prototype objects store a number of reserved slots equal to
- // DOM_INTERFACE_PROTO_SLOTS_BASE or DOM_INTERFACE_PROTO_SLOTS_BASE + 1 if a
- // slot for the unforgeable holder is needed.
- #define DOM_INTERFACE_PROTO_SLOTS_BASE 0
- #endif /* mozilla_dom_DOMSlots_h */
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