js/src/builtin/WeakMapObject.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   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 builtin_WeakMapObject_h
   8 #define builtin_WeakMapObject_h
   9
  10 #include "gc/WeakMap.h"
  11 #include "vm/NativeObject.h"
  12
  13 namespace js {
  14
  15 // Abstract base class for WeakMapObject and WeakSetObject.
  16 class WeakCollectionObject : public NativeObject {
  17  public:
  18   enum { DataSlot, SlotCount };
  19
  20   ValueValueWeakMap* getMap() {
  21     return maybePtrFromReservedSlot<ValueValueWeakMap>(DataSlot);
  22   }
  23
  24   size_t sizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf);
  25
  26   [[nodiscard]] static bool nondeterministicGetKeys(
  27       JSContext* cx, Handle<WeakCollectionObject*> obj,
  28       MutableHandleObject ret);
  29
  30  protected:
  31   static const JSClassOps classOps_;
  32 };
  33
  34 class WeakMapObject : public WeakCollectionObject {
  35  public:
  36   static const JSClass class_;
  37   static const JSClass protoClass_;
  38
  39  private:
  40   static const ClassSpec classSpec_;
  41
  42   static const JSPropertySpec properties[];
  43   static const JSFunctionSpec methods[];
  44
  45   [[nodiscard]] static bool construct(JSContext* cx, unsigned argc, Value* vp);
  46
  47   [[nodiscard]] static MOZ_ALWAYS_INLINE bool is(HandleValue v);
  48
  49   [[nodiscard]] static MOZ_ALWAYS_INLINE bool has_impl(JSContext* cx,
  50                                                        const CallArgs& args);
  51   [[nodiscard]] static bool has(JSContext* cx, unsigned argc, Value* vp);
  52   [[nodiscard]] static MOZ_ALWAYS_INLINE bool get_impl(JSContext* cx,
  53                                                        const CallArgs& args);
  54   [[nodiscard]] static bool get(JSContext* cx, unsigned argc, Value* vp);
  55   [[nodiscard]] static MOZ_ALWAYS_INLINE bool delete_impl(JSContext* cx,
  56                                                           const CallArgs& args);
  57   [[nodiscard]] static bool delete_(JSContext* cx, unsigned argc, Value* vp);
  58   [[nodiscard]] static MOZ_ALWAYS_INLINE bool set_impl(JSContext* cx,
  59                                                        const CallArgs& args);
  60   [[nodiscard]] static bool set(JSContext* cx, unsigned argc, Value* vp);
  61 };
  62
  63 }  // namespace js
  64
  65 #endif /* builtin_WeakMapObject_h */