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Add: template-version into_toml (Github issue #255)

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This commit is contained in:
xep
2024-07-20 10:44:45 +08:00
parent 92c2af024c
commit b853860a8f
2 changed files with 34 additions and 0 deletions
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11
include/toml11/traits.hpp
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@@ -83,6 +83,14 @@ struct has_into_toml_method_impl
static std::false_type check(...);
};
struct has_template_into_toml_method_impl
{
template<typename T, typename TypeConfig>
static std::true_type check(decltype(std::declval<T>().template into_toml<TypeConfig>())*);
template<typename T, typename TypeConfig>
static std::false_type check(...);
};
struct has_specialized_from_impl
{
template<typename T>
@@ -126,6 +134,9 @@ struct has_from_toml_method: decltype(has_from_toml_method_impl::check<T, TC>(nu
template<typename T>
struct has_into_toml_method: decltype(has_into_toml_method_impl::check<T>(nullptr)){};
template<typename T, typename TypeConfig>
struct has_template_into_toml_method: decltype(has_template_into_toml_method_impl::check<T, TypeConfig>(nullptr)){};
template<typename T>
struct has_specialized_from: decltype(has_specialized_from_impl::check<T>(nullptr)){};
template<typename T>

23
include/toml11/value.hpp
View File

@@ -1085,6 +1085,29 @@ class basic_value
*this = ud.into_toml();
return *this;
}
template<typename T, cxx::enable_if_t<cxx::conjunction<
detail::has_template_into_toml_method<T, TypeConfig>,
cxx::negation<detail::has_specialized_into<T>>
>::value, std::nullptr_t> = nullptr>
basic_value(const T& ud): basic_value(ud.template into_toml<TypeConfig>()) {}
template<typename T, cxx::enable_if_t<cxx::conjunction<
detail::has_template_into_toml_method<T, TypeConfig>,
cxx::negation<detail::has_specialized_into<T>>
>::value, std::nullptr_t> = nullptr>
basic_value(const T& ud, std::vector<std::string> com)
: basic_value(ud.template into_toml<TypeConfig>(), std::move(com))
{}
template<typename T, cxx::enable_if_t<cxx::conjunction<
detail::has_template_into_toml_method<T, TypeConfig>,
cxx::negation<detail::has_specialized_into<T>>
>::value, std::nullptr_t> = nullptr>
basic_value& operator=(const T& ud)
{
*this = ud.template into_toml<TypeConfig>();
return *this;
}
// }}}
// empty value with region info ======================================= {{{