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29 lines
718 B
29 lines
718 B
4 years ago
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// `Area` is a copyable type that opaquely represents either `Cow` or `Cow::Fake`.
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#pragma once
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#include <memory>
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#include <utility>
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#include <cow.hpp>
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struct Area {
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Area(size_t sz);
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Area(const Area& area);
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Area(Area&& area);
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inline const Cow* operator->() const { return _area.get(); }
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inline Cow* operator->() { return _area.get(); }
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inline const Cow* operator*() const { return _area.get(); }
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inline Cow* operator*() { return _area.get(); }
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inline operator const Cow&() const { return *_area.get(); }
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inline operator Cow&() { return *_area.get(); }
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inline bool is_clone() const { return dynamic_cast<Cow::Fake*>(_area.get()) != nullptr; }
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~Area();
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private:
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const std::unique_ptr<Cow> _area;
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};
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