The Tor Browser / file comparison
comparison: js/public/WeakMapPtr.h
js/public/WeakMapPtr.h
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:7461c7b9a82c |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef js_WeakMapPtr_h | |
| 8 #define js_WeakMapPtr_h | |
| 9 | |
| 10 #include "jspubtd.h" | |
| 11 | |
| 12 #include "js/TypeDecls.h" | |
| 13 | |
| 14 namespace JS { | |
| 15 | |
| 16 // A wrapper around the internal C++ representation of SpiderMonkey WeakMaps, | |
| 17 // usable outside the engine. | |
| 18 // | |
| 19 // The supported template specializations are enumerated in WeakMapPtr.cpp. If | |
| 20 // you want to use this class for a different key/value combination, add it to | |
| 21 // the list and the compiler will generate the relevant machinery. | |
| 22 template <typename K, typename V> | |
| 23 class JS_PUBLIC_API(WeakMapPtr) | |
| 24 { | |
| 25 public: | |
| 26 WeakMapPtr() : ptr(nullptr) {}; | |
| 27 bool init(JSContext *cx); | |
| 28 bool initialized() { return ptr != nullptr; }; | |
| 29 void destroy(); | |
| 30 virtual ~WeakMapPtr() { MOZ_ASSERT(!initialized()); } | |
| 31 void trace(JSTracer *tracer); | |
| 32 | |
| 33 V lookup(const K &key); | |
| 34 bool put(JSContext *cx, const K &key, const V &value); | |
| 35 | |
| 36 static void keyMarkCallback(JSTracer *trc, K key, void *data); | |
| 37 | |
| 38 private: | |
| 39 void *ptr; | |
| 40 | |
| 41 // WeakMapPtr is neither copyable nor assignable. | |
| 42 WeakMapPtr(const WeakMapPtr &wmp) MOZ_DELETE; | |
| 43 WeakMapPtr &operator=(const WeakMapPtr &wmp) MOZ_DELETE; | |
| 44 }; | |
| 45 | |
| 46 } /* namespace JS */ | |
| 47 | |
| 48 #endif /* js_WeakMapPtr_h */ |
