outcome_error_code_throw_as_system_error.hpp 3.1 KB

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  1. /* Policies for result and outcome
  2. (C) 2017-2019 Niall Douglas <http://www.nedproductions.biz/> (12 commits)
  3. File Created: Oct 2017
  4. Boost Software License - Version 1.0 - August 17th, 2003
  5. Permission is hereby granted, free of charge, to any person or organization
  6. obtaining a copy of the software and accompanying documentation covered by
  7. this license (the "Software") to use, reproduce, display, distribute,
  8. execute, and transmit the Software, and to prepare derivative works of the
  9. Software, and to permit third-parties to whom the Software is furnished to
  10. do so, all subject to the following:
  11. The copyright notices in the Software and this entire statement, including
  12. the above license grant, this restriction and the following disclaimer,
  13. must be included in all copies of the Software, in whole or in part, and
  14. all derivative works of the Software, unless such copies or derivative
  15. works are solely in the form of machine-executable object code generated by
  16. a source language processor.
  17. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18. IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19. FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  20. SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  21. FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  22. ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23. DEALINGS IN THE SOFTWARE.
  24. */
  25. #ifndef BOOST_OUTCOME_POLICY_OUTCOME_ERROR_CODE_THROW_AS_SYSTEM_ERROR_HPP
  26. #define BOOST_OUTCOME_POLICY_OUTCOME_ERROR_CODE_THROW_AS_SYSTEM_ERROR_HPP
  27. #include "result_error_code_throw_as_system_error.hpp"
  28. BOOST_OUTCOME_V2_NAMESPACE_EXPORT_BEGIN
  29. namespace policy
  30. {
  31. /*! AWAITING HUGO JSON CONVERSION TOOL
  32. type definition error_code_throw_as_system_error. Potential doc page: NOT FOUND
  33. */
  34. template <class T, class EC, class E> struct error_code_throw_as_system_error : base
  35. {
  36. template <class Impl> static constexpr void wide_value_check(Impl &&self)
  37. {
  38. if(!base::_has_value(std::forward<Impl>(self)))
  39. {
  40. if(base::_has_exception(std::forward<Impl>(self)))
  41. {
  42. detail::_rethrow_exception<trait::is_exception_ptr_available<E>::value>{base::_exception<T, EC, E, error_code_throw_as_system_error>(std::forward<Impl>(self))}; // NOLINT
  43. }
  44. if(base::_has_error(std::forward<Impl>(self)))
  45. {
  46. // ADL discovered
  47. outcome_throw_as_system_error_with_payload(base::_error(std::forward<Impl>(self)));
  48. }
  49. BOOST_OUTCOME_THROW_EXCEPTION(bad_outcome_access("no value")); // NOLINT
  50. }
  51. }
  52. template <class Impl> static constexpr void wide_error_check(Impl &&self)
  53. {
  54. if(!base::_has_error(std::forward<Impl>(self)))
  55. {
  56. BOOST_OUTCOME_THROW_EXCEPTION(bad_outcome_access("no error")); // NOLINT
  57. }
  58. }
  59. template <class Impl> static constexpr void wide_exception_check(Impl &&self)
  60. {
  61. if(!base::_has_exception(std::forward<Impl>(self)))
  62. {
  63. BOOST_OUTCOME_THROW_EXCEPTION(bad_outcome_access("no exception")); // NOLINT
  64. }
  65. }
  66. };
  67. } // namespace policy
  68. BOOST_OUTCOME_V2_NAMESPACE_END
  69. #endif