61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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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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#ifndef js_UniquePtr_h
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#define js_UniquePtr_h
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#include "mozilla/UniquePtr.h"
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#include "js/Utility.h"
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namespace js {
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// Replacement for mozilla::UniquePtr that defaults to js::DefaultDelete.
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template <typename T, typename D = JS::DeletePolicy<T>>
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using UniquePtr = mozilla::UniquePtr<T, D>;
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namespace detail {
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template<typename T>
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struct UniqueSelector
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{
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typedef UniquePtr<T> SingleObject;
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};
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template<typename T>
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struct UniqueSelector<T[]>
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{
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typedef UniquePtr<T[]> UnknownBound;
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};
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template<typename T, decltype(sizeof(int)) N>
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struct UniqueSelector<T[N]>
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{
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typedef UniquePtr<T[N]> KnownBound;
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};
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} // namespace detail
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// Replacement for mozilla::MakeUnique that correctly calls js_new and produces
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// a js::UniquePtr.
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template<typename T, typename... Args>
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typename detail::UniqueSelector<T>::SingleObject
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MakeUnique(Args&&... aArgs)
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{
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return UniquePtr<T>(js_new<T>(mozilla::Forward<Args>(aArgs)...));
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}
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template<typename T>
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typename detail::UniqueSelector<T>::UnknownBound
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MakeUnique(decltype(sizeof(int)) aN) = delete;
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template<typename T, typename... Args>
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typename detail::UniqueSelector<T>::KnownBound
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MakeUnique(Args&&... aArgs) = delete;
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} // namespace js
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#endif /* js_UniquePtr_h */
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