1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/builtin/WeakMapObject.h b/js/src/builtin/WeakMapObject.h
new file mode 100644
index 0000000000..e487b750cb
--- /dev/null
+++ b/js/src/builtin/WeakMapObject.h
@@ -0,0 +1,65 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * 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/. */
+
+#ifndef builtin_WeakMapObject_h
+#define builtin_WeakMapObject_h
+
+#include "gc/WeakMap.h"
+#include "vm/NativeObject.h"
+
+namespace js {
+
+// Abstract base class for WeakMapObject and WeakSetObject.
+class WeakCollectionObject : public NativeObject {
+ public:
+  enum { DataSlot, SlotCount };
+
+  ValueValueWeakMap* getMap() {
+    return maybePtrFromReservedSlot<ValueValueWeakMap>(DataSlot);
+  }
+
+  size_t sizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf);
+
+  [[nodiscard]] static bool nondeterministicGetKeys(
+      JSContext* cx, Handle<WeakCollectionObject*> obj,
+      MutableHandleObject ret);
+
+ protected:
+  static const JSClassOps classOps_;
+};
+
+class WeakMapObject : public WeakCollectionObject {
+ public:
+  static const JSClass class_;
+  static const JSClass protoClass_;
+
+ private:
+  static const ClassSpec classSpec_;
+
+  static const JSPropertySpec properties[];
+  static const JSFunctionSpec methods[];
+
+  [[nodiscard]] static bool construct(JSContext* cx, unsigned argc, Value* vp);
+
+  [[nodiscard]] static MOZ_ALWAYS_INLINE bool is(HandleValue v);
+
+  [[nodiscard]] static MOZ_ALWAYS_INLINE bool has_impl(JSContext* cx,
+                                                       const CallArgs& args);
+  [[nodiscard]] static bool has(JSContext* cx, unsigned argc, Value* vp);
+  [[nodiscard]] static MOZ_ALWAYS_INLINE bool get_impl(JSContext* cx,
+                                                       const CallArgs& args);
+  [[nodiscard]] static bool get(JSContext* cx, unsigned argc, Value* vp);
+  [[nodiscard]] static MOZ_ALWAYS_INLINE bool delete_impl(JSContext* cx,
+                                                          const CallArgs& args);
+  [[nodiscard]] static bool delete_(JSContext* cx, unsigned argc, Value* vp);
+  [[nodiscard]] static MOZ_ALWAYS_INLINE bool set_impl(JSContext* cx,
+                                                       const CallArgs& args);
+  [[nodiscard]] static bool set(JSContext* cx, unsigned argc, Value* vp);
+};
+
+}  // namespace js
+
+#endif /* builtin_WeakMapObject_h */