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0c03d1c560
This patch changes how we lookup native functions from Dart to be more extensible. This patch paves the way for removing the dart:ui_internals library.
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This is almost the source from N3656 ("make_unique (Revision 1)";
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// https://isocpp.org/files/papers/N3656.txt) almost verbatim, so that we have a
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// "make_unique" to use until we can use C++14. The following changes have been
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// made:
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// - It's called |MakeUnique| instead of |make_unique|.
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// - It's in the |WTF| namespace instead of |std|; this also
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// necessitates adding some |std::|s.
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// - It's been formatted.
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#ifndef SKY_ENGINE_WTF_MAKE_UNIQUE_H_
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#define SKY_ENGINE_WTF_MAKE_UNIQUE_H_
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#include <cstddef>
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#include <memory>
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#include <type_traits>
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#include <utility>
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namespace WTF {
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template <class T>
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struct _Unique_if {
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typedef std::unique_ptr<T> _Single_object;
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};
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template <class T>
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struct _Unique_if<T[]> {
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typedef std::unique_ptr<T[]> _Unknown_bound;
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};
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template <class T, size_t N>
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struct _Unique_if<T[N]> {
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typedef void _Known_bound;
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};
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template <class T, class... Args>
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typename _Unique_if<T>::_Single_object MakeUnique(Args&&... args) {
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return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
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}
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template <class T>
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typename _Unique_if<T>::_Unknown_bound MakeUnique(size_t n) {
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typedef typename std::remove_extent<T>::type U;
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return std::unique_ptr<T>(new U[n]());
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}
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template <class T, class... Args>
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typename _Unique_if<T>::_Known_bound MakeUnique(Args&&...) = delete;
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} // namespace WTF
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#endif // SKY_ENGINE_WTF_MAKE_UNIQUE_H_
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