/* Proposed SG14 status_code
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(C) 2018-2020 Niall Douglas <http://www.nedproductions.biz/> (5 commits)
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File Created: Feb 2018
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#ifndef BOOST_OUTCOME_SYSTEM_ERROR2_STATUS_ERROR_HPP
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#define BOOST_OUTCOME_SYSTEM_ERROR2_STATUS_ERROR_HPP
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#include "status_code.hpp"
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#include <exception> // for std::exception
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BOOST_OUTCOME_SYSTEM_ERROR2_NAMESPACE_BEGIN
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/*! Exception type representing a thrown status_code
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*/
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template <class DomainType> class status_error;
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/*! The erased type edition of status_error.
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*/
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template <> class status_error<void> : public std::exception
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{
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protected:
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//! Constructs an instance. Not publicly available.
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status_error() = default;
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//! Copy constructor. Not publicly available
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status_error(const status_error &) = default;
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//! Move constructor. Not publicly available
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status_error(status_error &&) = default;
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//! Copy assignment. Not publicly available
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status_error &operator=(const status_error &) = default;
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//! Move assignment. Not publicly available
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status_error &operator=(status_error &&) = default;
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//! Destructor. Not publicly available.
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~status_error() override = default;
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public:
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//! The type of the status domain
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using domain_type = void;
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//! The type of the status code
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using status_code_type = status_code<void>;
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};
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/*! Exception type representing a thrown status_code
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*/
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template <class DomainType> class status_error : public status_error<void>
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{
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status_code<DomainType> _code;
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typename DomainType::string_ref _msgref;
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public:
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//! The type of the status domain
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using domain_type = DomainType;
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//! The type of the status code
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using status_code_type = status_code<DomainType>;
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//! Constructs an instance
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explicit status_error(status_code<DomainType> code)
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: _code(static_cast<status_code<DomainType> &&>(code))
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, _msgref(_code.message())
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{
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}
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//! Return an explanatory string
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virtual const char *what() const noexcept override { return _msgref.c_str(); } // NOLINT
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//! Returns a reference to the code
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const status_code_type &code() const & { return _code; }
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//! Returns a reference to the code
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status_code_type &code() & { return _code; }
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//! Returns a reference to the code
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const status_code_type &&code() const && { return _code; }
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//! Returns a reference to the code
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status_code_type &&code() && { return _code; }
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};
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BOOST_OUTCOME_SYSTEM_ERROR2_NAMESPACE_END
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#endif
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