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feat: add get<T> overload with toml::value&

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ToruNiina 2023-05-27 00:16:17 +09:00
parent 40eb1d2213
commit e36eabf216
1 changed files with 35 additions and 0 deletions
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35
toml/get.hpp
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@ -260,6 +260,11 @@ template<typename T, typename C,
detail::enable_if_t<detail::has_specialized_from<T>::value, T>
get(const basic_value<C, M, V>&);
template<typename T, typename C,
template<typename ...> class M, template<typename ...> class V>
detail::enable_if_t<detail::has_specialized_from<T>::value, T>
get(basic_value<C, M, V>&);
// T(const toml::value&) and T is not toml::basic_value,
// and it does not have `from<T>` nor `from_toml`.
template<typename T, typename C,
@ -272,6 +277,16 @@ detail::enable_if_t<detail::conjunction<
>::value, T>
get(const basic_value<C, M, V>&);
template<typename T, typename C,
template<typename ...> class M, template<typename ...> class V>
detail::enable_if_t<detail::conjunction<
detail::negation<detail::is_basic_value<T>>,
std::is_constructible<T, basic_value<C, M, V>&>,
detail::negation<detail::has_from_toml_method<T, C, M, V>>,
detail::negation<detail::has_specialized_from<T>>
>::value, T>
get(basic_value<C, M, V>&);
// ============================================================================
// array-like types; most likely STL container, like std::vector, etc.
@ -451,6 +466,13 @@ get(const basic_value<C, M, V>& v)
{
return ::toml::from<T>::from_toml(v);
}
template<typename T, typename C,
template<typename ...> class M, template<typename ...> class V>
detail::enable_if_t<detail::has_specialized_from<T>::value, T>
get(basic_value<C, M, V>& v)
{
return ::toml::from<T>::from_toml(v);
}
template<typename T, typename C,
template<typename ...> class M, template<typename ...> class V>
@ -465,6 +487,19 @@ get(const basic_value<C, M, V>& v)
return T(v);
}
template<typename T, typename C,
template<typename ...> class M, template<typename ...> class V>
detail::enable_if_t<detail::conjunction<
detail::negation<detail::is_basic_value<T>>, // T is not a toml::value
std::is_constructible<T, basic_value<C, M, V>&>, // T is constructible from toml::value
detail::negation<detail::has_from_toml_method<T, C, M, V>>, // and T does not have T.from_toml(v);
detail::negation<detail::has_specialized_from<T>> // and T does not have toml::from<T>{};
>::value, T>
get(basic_value<C, M, V>& v)
{
return T(v);
}
// ============================================================================
// find