The Tor Browser / file comparison
comparison: dom/bindings/JSSlots.h
dom/bindings/JSSlots.h
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 4 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /** | |
| 7 * This file defines various reserved slot indices used by JavaScript | |
| 8 * reflections of DOM objects. | |
| 9 */ | |
| 10 #ifndef mozilla_dom_DOMSlots_h | |
| 11 #define mozilla_dom_DOMSlots_h | |
| 12 | |
| 13 // We use slot 0 for holding the raw object. This is safe for both | |
| 14 // globals and non-globals. | |
| 15 #define DOM_OBJECT_SLOT 0 | |
| 16 | |
| 17 // The total number of slots non-proxy DOM objects use by default. | |
| 18 // Specific objects may have more for storing cached values. | |
| 19 #define DOM_INSTANCE_RESERVED_SLOTS 1 | |
| 20 | |
| 21 // NOTE: This is baked into the Ion JIT as 0 in codegen for LGetDOMProperty and | |
| 22 // LSetDOMProperty. Those constants need to be changed accordingly if this value | |
| 23 // changes. | |
| 24 #define DOM_PROTO_INSTANCE_CLASS_SLOT 0 | |
| 25 | |
| 26 // Interface objects store a number of reserved slots equal to | |
| 27 // DOM_INTERFACE_SLOTS_BASE + number of named constructors. | |
| 28 #define DOM_INTERFACE_SLOTS_BASE 0 | |
| 29 | |
| 30 // Interface prototype objects store a number of reserved slots equal to | |
| 31 // DOM_INTERFACE_PROTO_SLOTS_BASE or DOM_INTERFACE_PROTO_SLOTS_BASE + 1 if a | |
| 32 // slot for the unforgeable holder is needed. | |
| 33 #define DOM_INTERFACE_PROTO_SLOTS_BASE (DOM_PROTO_INSTANCE_CLASS_SLOT + 1) | |
| 34 | |
| 35 #endif /* mozilla_dom_DOMSlots_h */ |
