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/* -*- 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 */
#ifndef js_UniquePtr_h
#define js_UniquePtr_h
#include "mozilla/UniquePtr.h"
#include "js/Utility.h"
namespace js {
// Replacement for mozilla::UniquePtr that defaults to JS::DeletePolicy.
template <typename T, typename D = JS::DeletePolicy<T>>
using UniquePtr = mozilla::UniquePtr<T, D>;
namespace detail {
template <typename T>
struct UniqueSelector {
typedef UniquePtr<T> SingleObject;
template <typename T>
struct UniqueSelector<T[]> {
typedef UniquePtr<T[]> UnknownBound;
template <typename T, decltype(sizeof(int)) N>
struct UniqueSelector<T[N]> {
typedef UniquePtr<T[N]> KnownBound;
} // namespace detail
// Replacement for mozilla::MakeUnique that correctly calls js_new and produces
// a js::UniquePtr.
template <typename T, typename... Args>
typename detail::UniqueSelector<T>::SingleObject MakeUnique(Args&&... aArgs) {
return UniquePtr<T>(js_new<T>(std::forward<Args>(aArgs)...));
template <typename T>
typename detail::UniqueSelector<T>::UnknownBound MakeUnique(
decltype(sizeof(int)) aN) = delete;
template <typename T, typename... Args>
typename detail::UniqueSelector<T>::KnownBound MakeUnique(Args&&... aArgs) =
} // namespace js
#endif /* js_UniquePtr_h */