1 // Copyright 2021 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef COMMON_NONCOPYABLE_H_ 16 #define COMMON_NONCOPYABLE_H_ 17 18 // A base class to make a class non-copyable. 19 class NonCopyable { 20 protected: 21 constexpr NonCopyable() = default; 22 ~NonCopyable() = default; 23 24 NonCopyable(NonCopyable&&) = default; 25 NonCopyable& operator=(NonCopyable&&) = default; 26 27 private: 28 NonCopyable(const NonCopyable&) = delete; 29 void operator=(const NonCopyable&) = delete; 30 }; 31 32 // A base class to make a class non-movable. 33 class NonMovable : NonCopyable { 34 protected: 35 constexpr NonMovable() = default; 36 ~NonMovable() = default; 37 38 private: 39 NonMovable(NonMovable&&) = delete; 40 void operator=(NonMovable&&) = delete; 41 }; 42 43 #endif 44