forked from such-gitea/wownero-lws
81 lines
4.5 KiB
C++
81 lines
4.5 KiB
C++
// Copyright (c) 2020, The Monero Project
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include <algorithm>
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#include <boost/utility/string_ref.hpp>
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#include <iterator>
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#include <type_traits>
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#include "common/expect.h" // monero/src
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#include "wire/error.h"
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#include "wire/read.h"
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#include "wire/write.h"
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#define WIRE_DEFINE_ENUM(type_, map) \
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static_assert(std::is_enum<type_>::value, "get_string will fail"); \
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static_assert(!std::is_signed<type_>::value, "write_bytes will fail"); \
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const char* get_string(const type_ source) noexcept \
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{ \
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using native_type = std::underlying_type<type_>::type; \
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const native_type value = native_type(source); \
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if (value < std::end(map) - std::begin(map)) \
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return map[value]; \
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return "invalid enum value"; \
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} \
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expect<type_> type_ ## _from_string(const boost::string_ref source) noexcept \
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{ \
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if (const auto elem = std::find(std::begin(map), std::end(map), source)) \
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{ \
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if (elem != std::end(map)) \
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return type_(elem - std::begin(map)); \
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} \
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return {::wire::error::schema::enumeration}; \
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} \
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void read_bytes(::wire::reader& source, type_& dest) \
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{ \
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const auto val = type_ ## _from_string(source.string()); \
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if (!val) \
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WIRE_DLOG_THROW(::wire::error::schema::enumeration, #type_); \
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dest = *val; \
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} \
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void write_bytes(::wire::writer& dest, const type_ source) \
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{ \
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dest.string(get_string(source)); \
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}
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#define WIRE_DEFINE_OBJECT(type, map) \
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void read_bytes(::wire::reader& source, type& dest) \
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{ \
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map(source, dest); \
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} \
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void write_bytes(::wire::writer& dest, const type& source) \
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{ \
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map(dest, source); \
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}
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