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oxen-mq
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Replace visitor class with generic lambda

This commit is contained in:
Jason Rhinelander 2020-07-29 16:41:10 -03:00
parent e5cf174b83
commit d8d1d8677c
1 changed files with 6 additions and 12 deletions
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18
lokimq/bt_serialize.h
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@ -324,17 +324,6 @@ struct bt_deserialize<T, std::enable_if_t<is_bt_output_list_container<T>>> {
}
};
/// variant visitor; serializes whatever is contained
class bt_serialize_visitor {
std::ostream &os;
public:
using result_type = void;
bt_serialize_visitor(std::ostream &os) : os{os} {}
template <typename T> void operator()(const T &val) const {
bt_serialize<T>{}(os, val);
}
};
template <typename T>
constexpr bool is_bt_deserializable = std::is_same_v<T, std::string> || std::is_integral_v<T> ||
is_bt_output_dict_container<T> || is_bt_output_list_container<T>;
@ -383,7 +372,12 @@ struct bt_deserialize_try_variant_impl<std::enable_if_t<!is_bt_deserializable<T>
template <typename... Ts>
struct bt_serialize<std::variant<Ts...>, std::void_t<bt_serialize<Ts>...>> {
void operator()(std::ostream &os, const std::variant<Ts...>& val) {
std::visit(bt_serialize_visitor{os}, val);
std::visit(
[&os] (const auto& val) {
using T = std::remove_cv_t<std::remove_reference_t<decltype(val)>>;
bt_serialize<T>{}(os, val);
},
val);
}
};