163 lines
5.9 KiB
C++
163 lines
5.9 KiB
C++
#pragma once
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#include <boost/asio/awaitable.hpp>
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#include <boost/system/errc.hpp>
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#include <boost/system/error_code.hpp>
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#include <memory_resource>
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#if __has_include(<expected>)
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#include <expected>
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#elif __has_include(<tl/expected.hpp>)
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#include <tl/expected.hpp>
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#else
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#error "No expected implementation available"
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#endif
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namespace ranczo {
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template<typename T>
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std::optional<T> from_string(std::optional< std::string_view > state,
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std::pmr::memory_resource * mr = std::pmr::get_default_resource());
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#if __has_include(<expected>)
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template < typename T >
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using expected = std::expected< T, boost::system::error_code >;
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template < typename T >
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using unexpected = std::unexpected< T >;
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#elif __has_include(<tl/expected.hpp>)
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template < typename T >
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using expected = tl::expected< T, boost::system::error_code >;
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template < typename T >
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using unexpected = tl::unexpected< T >;
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#else
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#error "No expected implementation available"
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#endif
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template < typename T >
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using awaitable = boost::asio::awaitable< T >;
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template < typename T >
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using awaitable_expected = awaitable< expected< T > >;
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using _void = expected< void >;
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using ::boost::system::errc::make_error_code;
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#define TRY(failable) \
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({ \
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auto _result = failable; \
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if(!_result) \
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return unexpected{_result.error()}; \
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*_result; \
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})
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#define TRY_MSG(failable, ...) \
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({ \
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auto _result = (failable); \
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if(!_result) { \
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spdlog::error(__VA_ARGS__); \
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return unexpected{_result.error()}; \
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} \
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*_result; \
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})
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#define TRY_TRANSFORM_ERROR(failable, transform) \
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({ \
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auto _result = (failable); \
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if(!_result) \
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return unexpected{transform(_result.error())}; \
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*_result; \
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})
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#define CHECK(failable) \
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do { \
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auto _result = await(failable); \
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if(!_result) \
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return unexpected(_result.error()); \
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} while(0)
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#define CHECK_MSG(failable, ...) \
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do { \
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auto _result = await(failable); \
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if(!_result) { \
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spdlog::error(__VA_ARGS__); \
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return unexpected{_result.error()}; \
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} \
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} while(0)
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#define ASYNC_TRY(failable) \
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({ \
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auto _result = co_await (failable); \
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if(!_result) \
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co_return unexpected{_result.error()}; \
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*_result; \
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})
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#define ASYNC_TRY_TRANSFORM_ERROR(failable, transform) \
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({ \
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auto _result = co_await (failable); \
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if(!_result) \
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co_return unexpected{transform(_result.error())}; \
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*_result; \
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})
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#define ASYNC_TRY_MSG(failable, ...) \
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({ \
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auto _result = co_await (failable); \
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if(!_result) { \
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spdlog::error(__VA_ARGS__); \
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co_return unexpected{_result.error()}; \
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} \
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*_result; \
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})
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#define ASYNC_CHECK(failable) \
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do { \
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auto _result = co_await (failable); \
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if(!_result) \
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co_return unexpected(_result.error()); \
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} while(0)
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#define ASYNC_CHECK_MSG(failable, ...) \
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do { \
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auto _result = co_await (failable); \
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if(!_result) { \
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spdlog::error(__VA_ARGS__); \
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co_return unexpected{_result.error()}; \
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} \
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} while(0)
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/// asserts that a _log objject is available, usefull for modules
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#define ASYNC_CHECK_LOG(failable, ...) \
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do { \
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auto _result = co_await (failable); \
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if(!_result) { \
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_log.error(__VA_ARGS__); \
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co_return unexpected{_result.error()}; \
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} \
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} while(0)
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#define ASYNC_CHECK_TRANSFORM_ERROR(failable, transform) \
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do { \
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auto _result = co_await (failable); \
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if(!_result) { \
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co_return unexpected{transform(_result.error())}; \
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} \
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} while(0)
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#define ASYNC_CHECK_TRANSFORM_ERR_LOG(failable, transform, ...) \
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do { \
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auto _result = co_await (failable); \
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if(!_result) { \
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_log.error(__VA_ARGS__); \
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co_return unexpected{transform(_result.error())}; \
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} \
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} while(0)
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} // namespace ranczo
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