include/boost/url/grammar/impl/variant_rule.hpp
94.1% Lines (16/17)
77.8% Functions (14/18)
100.0% Branches (8/8)
include/boost/url/grammar/impl/variant_rule.hpp
| Line | Branch | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com) | ||
| 3 | // Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com) | ||
| 4 | // | ||
| 5 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 6 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 7 | // | ||
| 8 | // Official repository: https://github.com/boostorg/url | ||
| 9 | // | ||
| 10 | |||
| 11 | #ifndef BOOST_URL_GRAMMAR_IMPL_VARIANT_RULE_HPP | ||
| 12 | #define BOOST_URL_GRAMMAR_IMPL_VARIANT_RULE_HPP | ||
| 13 | |||
| 14 | #include <boost/url/grammar/error.hpp> | ||
| 15 | #include <boost/url/grammar/parse.hpp> | ||
| 16 | #include <boost/core/detail/static_assert.hpp> | ||
| 17 | #include <cstdint> | ||
| 18 | #include <type_traits> | ||
| 19 | |||
| 20 | namespace boost { | ||
| 21 | namespace urls { | ||
| 22 | namespace grammar { | ||
| 23 | |||
| 24 | namespace detail { | ||
| 25 | |||
| 26 | // must come first | ||
| 27 | template< | ||
| 28 | class R0, | ||
| 29 | class... Rn, | ||
| 30 | std::size_t I> | ||
| 31 | BOOST_URL_CXX14_CONSTEXPR | ||
| 32 | auto | ||
| 33 | 819 | parse_variant( | |
| 34 | char const*&, | ||
| 35 | char const*, | ||
| 36 | detail::tuple< | ||
| 37 | R0, Rn...> const&, | ||
| 38 | std::integral_constant< | ||
| 39 | std::size_t, I> const&, | ||
| 40 | std::false_type const&) -> | ||
| 41 | system::result<variant2::variant< | ||
| 42 | typename R0::value_type, | ||
| 43 | typename Rn::value_type...>> | ||
| 44 | { | ||
| 45 | // no match | ||
| 46 | 819 | BOOST_URL_CONSTEXPR_RETURN_EC( | |
| 47 | error::mismatch); | ||
| 48 | } | ||
| 49 | |||
| 50 | template< | ||
| 51 | class R0, | ||
| 52 | class... Rn, | ||
| 53 | std::size_t I> | ||
| 54 | BOOST_URL_CXX14_CONSTEXPR | ||
| 55 | auto | ||
| 56 | 2267 | parse_variant( | |
| 57 | char const*& it, | ||
| 58 | char const* const end, | ||
| 59 | detail::tuple< | ||
| 60 | R0, Rn...> const& rn, | ||
| 61 | std::integral_constant< | ||
| 62 | std::size_t, I> const&, | ||
| 63 | std::true_type const&) -> | ||
| 64 | system::result<variant2::variant< | ||
| 65 | typename R0::value_type, | ||
| 66 | typename Rn::value_type...>> | ||
| 67 | { | ||
| 68 | 2267 | auto const it0 = it; | |
| 69 |
1/1✓ Branch 2 taken 524 times.
|
2267 | auto rv = parse( |
| 70 | it, end, get<I>(rn)); | ||
| 71 |
2/2✓ Branch 1 taken 530 times.
✓ Branch 2 taken 1737 times.
|
2267 | if( rv ) |
| 72 | return variant2::variant< | ||
| 73 | typename R0::value_type, | ||
| 74 | typename Rn::value_type...>{ | ||
| 75 |
1/1✓ Branch 2 taken 530 times.
|
530 | variant2::in_place_index_t<I>{}, *rv}; |
| 76 | 1737 | it = it0; | |
| 77 |
1/1✓ Branch 1 taken 394 times.
|
1434 | return parse_variant( |
| 78 | it, end, rn, | ||
| 79 | std::integral_constant< | ||
| 80 | std::size_t, I+1>{}, | ||
| 81 | std::integral_constant<bool, | ||
| 82 | ((I + 1) < (1 + | ||
| 83 |
1/1✓ Branch 1 taken 524 times.
|
1737 | sizeof...(Rn)))>{}); |
| 84 | ✗ | } | |
| 85 | |||
| 86 | } // detail | ||
| 87 | |||
| 88 | template<class R0, class... Rn> | ||
| 89 | BOOST_URL_CXX14_CONSTEXPR | ||
| 90 | auto | ||
| 91 | 1349 | implementation_defined::variant_rule_t<R0, Rn...>:: | |
| 92 | parse( | ||
| 93 | char const*& it, | ||
| 94 | char const* end) const -> | ||
| 95 | system::result<value_type> | ||
| 96 | { | ||
| 97 | 789 | return detail::parse_variant( | |
| 98 |
1/1✓ Branch 1 taken 789 times.
|
1349 | it, end, rn_, |
| 99 | std::integral_constant< | ||
| 100 | std::size_t, 0>{}, | ||
| 101 |
1/1✓ Branch 1 taken 2 times.
|
2138 | std::true_type{}); |
| 102 | } | ||
| 103 | |||
| 104 | //------------------------------------------------ | ||
| 105 | |||
| 106 | template<BOOST_URL_CONSTRAINT(Rule) R0, BOOST_URL_CONSTRAINT(Rule)... Rn> | ||
| 107 | auto | ||
| 108 | constexpr | ||
| 109 | 1 | variant_rule( | |
| 110 | R0 const& r0, | ||
| 111 | Rn const&... rn) noexcept -> | ||
| 112 | implementation_defined::variant_rule_t<R0, Rn...> | ||
| 113 | { | ||
| 114 | BOOST_CORE_STATIC_ASSERT( | ||
| 115 | mp11::mp_all< | ||
| 116 | is_rule<R0>, | ||
| 117 | is_rule<Rn>...>::value); | ||
| 118 | 1 | return { r0, rn... }; | |
| 119 | } | ||
| 120 | |||
| 121 | } // grammar | ||
| 122 | } // urls | ||
| 123 | } // boost | ||
| 124 | |||
| 125 | #endif | ||
| 126 |