1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/vm/NumberObject.h b/js/src/vm/NumberObject.h
new file mode 100644
index 0000000000..936cd9db1d
--- /dev/null
+++ b/js/src/vm/NumberObject.h
@@ -0,0 +1,44 @@
+/* -*- 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 vm_NumberObject_h
+#define vm_NumberObject_h
+
+#include "vm/NativeObject.h"
+
+namespace js {
+
+class NumberObject : public NativeObject {
+  /* Stores this Number object's [[PrimitiveValue]]. */
+  static const unsigned PRIMITIVE_VALUE_SLOT = 0;
+
+  static const ClassSpec classSpec_;
+
+ public:
+  static const unsigned RESERVED_SLOTS = 1;
+
+  static const JSClass class_;
+
+  /*
+   * Creates a new Number object boxing the given number.
+   * If proto is nullptr, then Number.prototype will be used instead.
+   */
+  static inline NumberObject* create(JSContext* cx, double d,
+                                     HandleObject proto = nullptr);
+
+  double unbox() const { return getFixedSlot(PRIMITIVE_VALUE_SLOT).toNumber(); }
+
+ private:
+  static JSObject* createPrototype(JSContext* cx, JSProtoKey key);
+
+  inline void setPrimitiveValue(double d) {
+    setFixedSlot(PRIMITIVE_VALUE_SLOT, NumberValue(d));
+  }
+};
+
+}  // namespace js
+
+#endif /* vm_NumberObject_h */