| // |
| // Copyright 2020 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| #ifndef COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REFERENCE_H_ |
| #define COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REFERENCE_H_ |
| |
| namespace sh |
| { |
| |
| // Similar to std::reference_wrapper, but also lifts comparison operators. |
| template <typename T> |
| class Ref |
| { |
| public: |
| Ref(const Ref &) = default; |
| Ref(Ref &&) = default; |
| Ref(T &ref) : mPtr(&ref) {} |
| |
| Ref &operator=(const Ref &) = default; |
| Ref &operator=(Ref &&) = default; |
| |
| bool operator==(const Ref &other) const { return *mPtr == *other.mPtr; } |
| bool operator!=(const Ref &other) const { return *mPtr != *other.mPtr; } |
| bool operator<=(const Ref &other) const { return *mPtr <= *other.mPtr; } |
| bool operator>=(const Ref &other) const { return *mPtr >= *other.mPtr; } |
| bool operator<(const Ref &other) const { return *mPtr < *other.mPtr; } |
| bool operator>(const Ref &other) const { return *mPtr > *other.mPtr; } |
| |
| T &get() { return *mPtr; } |
| T const &get() const { return *mPtr; } |
| |
| operator T &() { return *mPtr; } |
| operator T const &() const { return *mPtr; } |
| |
| operator T *() { return *mPtr; } |
| operator T const *() const { return *mPtr; } |
| |
| private: |
| T *mPtr; |
| }; |
| |
| template <typename T> |
| using CRef = Ref<T const>; |
| |
| } // namespace sh |
| |
| #endif // COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_REFERENCE_H_ |