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cb8e3bb881
Depends on D8646 Differential Revision: https://phabricator.services.mozilla.com/D8647 --HG-- extra : moz-landing-system : lando
42 lines
996 B
C++
42 lines
996 B
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* an object with the same layout as a Rust std::cell::Cell<T> */
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#ifndef mozilla_RustCell_h
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#define mozilla_RustCell_h
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namespace mozilla {
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/**
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* Object with the same layout as std::cell::Cell<T>.
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*
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* ServoBindings.toml defines a mapping so that generated bindings use a
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* real std::cell::Cell<T>.
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*
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* Note that while the layout matches, this doesn't have the same ABI as a
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* std::cell::Cell<T>, so values of this type can't be passed over FFI
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* functions.
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*/
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template<typename T>
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class RustCell
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{
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public:
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RustCell()
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: mValue()
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{
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}
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T Get() const { return mValue; }
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private:
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T mValue;
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};
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} // namespace mozilla
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#endif // mozilla_RustCell_h
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