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Diffstat (limited to 'dom/bindings/XrayExpandoClass.h')
-rw-r--r-- | dom/bindings/XrayExpandoClass.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/dom/bindings/XrayExpandoClass.h b/dom/bindings/XrayExpandoClass.h new file mode 100644 index 0000000000..c1b21deed5 --- /dev/null +++ b/dom/bindings/XrayExpandoClass.h @@ -0,0 +1,39 @@ +/* -*- 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/. */ + +/** + * This file declares a macro for defining Xray expando classes and declares the + * default Xray expando class. The actual definition of that default class + * lives elsewhere. + */ +#ifndef mozilla_dom_XrayExpandoClass_h +#define mozilla_dom_XrayExpandoClass_h + +/* + * maybeStatic_ Should be either `static` or nothing (because some Xray expando + * classes are not static). + * + * name_ should be the name of the variable. + * + * extraSlots_ should be how many extra slots to give the class, in addition to + * the ones Xray expandos want. + */ +#define DEFINE_XRAY_EXPANDO_CLASS(maybeStatic_, name_, extraSlots_) \ + maybeStatic_ const JSClass name_ = { \ + "XrayExpandoObject", \ + JSCLASS_HAS_RESERVED_SLOTS(xpc::JSSLOT_EXPANDO_COUNT + (extraSlots_)) | \ + JSCLASS_FOREGROUND_FINALIZE, \ + &xpc::XrayExpandoObjectClassOps} + +namespace mozilla { +namespace dom { + +extern const JSClass DefaultXrayExpandoObjectClass; + +} // namespace dom +} // namespace mozilla + +#endif /* mozilla_dom_XrayExpandoClass_h */ |