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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkUniquePtr_DEFINED | 8 #ifndef SkUniquePtr_DEFINED |
9 #define SkUniquePtr_DEFINED | 9 #define SkUniquePtr_DEFINED |
10 | 10 |
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41 template <typename U> static T* detector(...); | 41 template <typename U> static T* detector(...); |
42 using type = decltype(detector<remove_reference_t<D>>(0)); | 42 using type = decltype(detector<remove_reference_t<D>>(0)); |
43 }; | 43 }; |
44 | 44 |
45 public: | 45 public: |
46 using pointer = typename pointer_type_detector::type; | 46 using pointer = typename pointer_type_detector::type; |
47 using element_type = T; | 47 using element_type = T; |
48 using deleter_type = D; | 48 using deleter_type = D; |
49 | 49 |
50 private: | 50 private: |
51 template <typename B, bool = is_empty<B>::value /*&& !is_final<B>::value*/> | 51 template <typename B, bool = std::is_empty<B>::value /*&& !is_final<B>::valu
e*/> |
52 struct compressed_base : private B { | 52 struct compressed_base : private B { |
53 /*constexpr*/ compressed_base() : B() {} | 53 /*constexpr*/ compressed_base() : B() {} |
54 /*constexpr*/ compressed_base(const B& b) : B(b) {} | 54 /*constexpr*/ compressed_base(const B& b) : B(b) {} |
55 /*constexpr*/ compressed_base(B&& b) : B(std::move(b)) {} | 55 /*constexpr*/ compressed_base(B&& b) : B(std::move(b)) {} |
56 /*constexpr*/ B& get() /*noexcept*/ { return *this; } | 56 /*constexpr*/ B& get() /*noexcept*/ { return *this; } |
57 /*constexpr*/ B const& get() const /*noexcept*/ { return *this; } | 57 /*constexpr*/ B const& get() const /*noexcept*/ { return *this; } |
58 void swap(compressed_base&) /*noexcept*/ { } | 58 void swap(compressed_base&) /*noexcept*/ { } |
59 }; | 59 }; |
60 | 60 |
61 template <typename B> struct compressed_base<B, false> { | 61 template <typename B> struct compressed_base<B, false> { |
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214 template <typename U> static T* detector(...); | 214 template <typename U> static T* detector(...); |
215 using type = decltype(detector<remove_reference_t<D>>(0)); | 215 using type = decltype(detector<remove_reference_t<D>>(0)); |
216 }; | 216 }; |
217 | 217 |
218 public: | 218 public: |
219 using pointer = typename pointer_type_detector::type; | 219 using pointer = typename pointer_type_detector::type; |
220 using element_type = T; | 220 using element_type = T; |
221 using deleter_type = D; | 221 using deleter_type = D; |
222 | 222 |
223 private: | 223 private: |
224 template <typename B, bool = is_empty<B>::value /*&& !is_final<B>::value*/> | 224 template <typename B, bool = std::is_empty<B>::value /*&& !is_final<B>::valu
e*/> |
225 struct compressed_base : private B { | 225 struct compressed_base : private B { |
226 /*constexpr*/ compressed_base() : B() {} | 226 /*constexpr*/ compressed_base() : B() {} |
227 /*constexpr*/ compressed_base(const B& b) : B(b) {} | 227 /*constexpr*/ compressed_base(const B& b) : B(b) {} |
228 /*constexpr*/ compressed_base(B&& b) : B(std::move(b)) {} | 228 /*constexpr*/ compressed_base(B&& b) : B(std::move(b)) {} |
229 /*constexpr*/ B& get() /*noexcept*/ { return *this; } | 229 /*constexpr*/ B& get() /*noexcept*/ { return *this; } |
230 /*constexpr*/ B const& get() const /*noexcept*/ { return *this; } | 230 /*constexpr*/ B const& get() const /*noexcept*/ { return *this; } |
231 void swap(compressed_base&) /*noexcept*/ { } | 231 void swap(compressed_base&) /*noexcept*/ { } |
232 }; | 232 }; |
233 | 233 |
234 template <typename B> struct compressed_base<B, false> { | 234 template <typename B> struct compressed_base<B, false> { |
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392 | 392 |
393 template <typename T, typename D> | 393 template <typename T, typename D> |
394 inline bool operator!=(std::nullptr_t, const unique_ptr<T, D>& b) /*noexcept*/ { | 394 inline bool operator!=(std::nullptr_t, const unique_ptr<T, D>& b) /*noexcept*/ { |
395 //return (bool)b; | 395 //return (bool)b; |
396 return b.is_attached(); | 396 return b.is_attached(); |
397 } | 397 } |
398 | 398 |
399 } // namespace skstd | 399 } // namespace skstd |
400 | 400 |
401 #endif | 401 #endif |
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