62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
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/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2022, Danny Robson <danny@nerdcruft.net>
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*/
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#pragma once
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#include <cruft/util/view.hpp>
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#include <cstddef>
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namespace cruft::serialise {
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template <typename ValueT>
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struct converter {
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static
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cruft::view<std::byte*>
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to_bytes [[nodiscard]] (
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cruft::view<std::byte*> dst,
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ValueT const &src
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);
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static
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ValueT
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from_bytes (cruft::view<std::byte*> &src);
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static std::size_t size (ValueT const&);
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};
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template <typename ValueT> struct converter<ValueT const> : public converter<ValueT> {};
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template <typename ValueT> struct converter<ValueT &> : public converter<ValueT> {};
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template <typename ValueT>
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requires (std::is_trivial_v<ValueT>)
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struct converter<ValueT> {
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static
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cruft::view<std::byte*>
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to_bytes [[nodiscard]] (
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cruft::view<std::byte*> dst,
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ValueT const &src
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) {
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if (dst.size () < sizeof (ValueT))
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throw std::bad_alloc ();
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return write (dst, src);
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}
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static
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ValueT
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from_bytes (cruft::view<std::byte*> &src)
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{
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return read<ValueT> (src);
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}
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static std::size_t size (ValueT const&) { return sizeof (ValueT); }
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};
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}
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