mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-28 23:31:56 +00:00
1e9c395548
Same approach as the other bug, mostly replacing automatically by removing 'using mozilla::Forward;' and then: s/mozilla::Forward/std::forward/ s/Forward</std::forward</ The only file that required manual fixup was TestTreeTraversal.cpp, which had a class called TestNodeForward with template parameters :) MozReview-Commit-ID: A88qFG5AccP
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/* -*- 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/. */
|
|
|
|
/* Useful extensions to UniquePtr. */
|
|
|
|
#ifndef mozilla_UniquePtrExtensions_h
|
|
#define mozilla_UniquePtrExtensions_h
|
|
|
|
#include "mozilla/fallible.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
|
|
namespace mozilla {
|
|
|
|
/**
|
|
* MakeUniqueFallible works exactly like MakeUnique, except that the memory
|
|
* allocation performed is done fallibly, i.e. it can return nullptr.
|
|
*/
|
|
template<typename T, typename... Args>
|
|
typename detail::UniqueSelector<T>::SingleObject
|
|
MakeUniqueFallible(Args&&... aArgs)
|
|
{
|
|
return UniquePtr<T>(new (fallible) T(std::forward<Args>(aArgs)...));
|
|
}
|
|
|
|
template<typename T>
|
|
typename detail::UniqueSelector<T>::UnknownBound
|
|
MakeUniqueFallible(decltype(sizeof(int)) aN)
|
|
{
|
|
typedef typename RemoveExtent<T>::Type ArrayType;
|
|
return UniquePtr<T>(new (fallible) ArrayType[aN]());
|
|
}
|
|
|
|
template<typename T, typename... Args>
|
|
typename detail::UniqueSelector<T>::KnownBound
|
|
MakeUniqueFallible(Args&&... aArgs) = delete;
|
|
|
|
namespace detail {
|
|
|
|
template<typename T>
|
|
struct FreePolicy
|
|
{
|
|
void operator()(const void* ptr) {
|
|
free(const_cast<void*>(ptr));
|
|
}
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
template<typename T>
|
|
using UniqueFreePtr = UniquePtr<T, detail::FreePolicy<T>>;
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_UniquePtrExtensions_h
|