mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-11 16:32:59 +00:00
34 lines
1.3 KiB
C
34 lines
1.3 KiB
C
/* -*- Mode: C++; tab-width: 2; 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 */
|