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/*
* This source code is released into the public domain.
*/
module;
#include <format>
#include <string>
export module nihil.config:string;
import nihil;
import nihil.ucl;
import :option;
import :store;
namespace nihil::config {
export struct string final : option
{
string(std::string &storage,
std::string_view name,
std::string_view description) noexcept
: option(name, description)
, _storage(storage)
{
store::get().register_option(this);
}
~string()
{
store::get().unregister_option(this);
}
auto get_string() const -> std::string override
{
return _storage;
};
auto set_string(std::string_view new_value) -> void override
{
_storage = new_value;
}
auto to_ucl() const -> ucl::object override
{
return ucl::string(_storage);
}
auto from_ucl(ucl::object const &uclobj) -> void override
{
try {
_storage = object_cast<ucl::string>(uclobj).value();
is_default(false);
} catch (ucl::type_mismatch const &exc) {
throw error(std::format("'{}': expected string, not {}",
name(), str(exc.actual_type())));
}
}
private:
std::string &_storage;
};
} // namespace nihil::config
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