/work/obj-fuzz/dist/include/mozilla/UniquePtrExtensions.h
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | /* Useful extensions to UniquePtr. */ |
8 | | |
9 | | #ifndef mozilla_UniquePtrExtensions_h |
10 | | #define mozilla_UniquePtrExtensions_h |
11 | | |
12 | | #include "mozilla/fallible.h" |
13 | | #include "mozilla/UniquePtr.h" |
14 | | |
15 | | namespace mozilla { |
16 | | |
17 | | /** |
18 | | * MakeUniqueFallible works exactly like MakeUnique, except that the memory |
19 | | * allocation performed is done fallibly, i.e. it can return nullptr. |
20 | | */ |
21 | | template<typename T, typename... Args> |
22 | | typename detail::UniqueSelector<T>::SingleObject |
23 | | MakeUniqueFallible(Args&&... aArgs) |
24 | | { |
25 | | return UniquePtr<T>(new (fallible) T(std::forward<Args>(aArgs)...)); |
26 | | } |
27 | | |
28 | | template<typename T> |
29 | | typename detail::UniqueSelector<T>::UnknownBound |
30 | | MakeUniqueFallible(decltype(sizeof(int)) aN) |
31 | 0 | { |
32 | 0 | typedef typename RemoveExtent<T>::Type ArrayType; |
33 | 0 | return UniquePtr<T>(new (fallible) ArrayType[aN]()); |
34 | 0 | } Unexecuted instantiation: mozilla::detail::UniqueSelector<char []>::UnknownBound mozilla::MakeUniqueFallible<char []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<unsigned char []>::UnknownBound mozilla::MakeUniqueFallible<unsigned char []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<char16_t []>::UnknownBound mozilla::MakeUniqueFallible<char16_t []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<nsFramesetSpec []>::UnknownBound mozilla::MakeUniqueFallible<nsFramesetSpec []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<float []>::UnknownBound mozilla::MakeUniqueFallible<float []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<unsigned int []>::UnknownBound mozilla::MakeUniqueFallible<unsigned int []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<txObject* []>::UnknownBound mozilla::MakeUniqueFallible<txObject* []>(unsigned long) Unexecuted instantiation: mozilla::detail::UniqueSelector<unsigned short []>::UnknownBound mozilla::MakeUniqueFallible<unsigned short []>(unsigned long) |
35 | | |
36 | | template<typename T, typename... Args> |
37 | | typename detail::UniqueSelector<T>::KnownBound |
38 | | MakeUniqueFallible(Args&&... aArgs) = delete; |
39 | | |
40 | | namespace detail { |
41 | | |
42 | | template<typename T> |
43 | | struct FreePolicy |
44 | | { |
45 | 6 | void operator()(const void* ptr) { |
46 | 6 | free(const_cast<void*>(ptr)); |
47 | 6 | } mozilla::detail::FreePolicy<char>::operator()(void const*) Line | Count | Source | 45 | 6 | void operator()(const void* ptr) { | 46 | 6 | free(const_cast<void*>(ptr)); | 47 | 6 | } |
Unexecuted instantiation: mozilla::detail::FreePolicy<char const>::operator()(void const*) Unexecuted instantiation: mozilla::detail::FreePolicy<char []>::operator()(void const*) Unexecuted instantiation: mozilla::detail::FreePolicy<unsigned char>::operator()(void const*) Unexecuted instantiation: mozilla::detail::FreePolicy<char16_t []>::operator()(void const*) |
48 | | }; |
49 | | |
50 | | } // namespace detail |
51 | | |
52 | | template<typename T> |
53 | | using UniqueFreePtr = UniquePtr<T, detail::FreePolicy<T>>; |
54 | | |
55 | | } // namespace mozilla |
56 | | |
57 | | #endif // mozilla_UniquePtrExtensions_h |