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/*
* This source code is released into the public domain.
*/
module;
#include <compare>
#include <cstdlib>
#include <expected>
#include <system_error>
#include <ucl.h>
module nihil.ucl;
import nihil;
namespace nihil::ucl {
auto make_boolean(boolean::contained_type value)
-> std::expected<boolean, error>
{
auto *uobj = ::ucl_object_frombool(value);
if (uobj == nullptr)
return std::unexpected(error(
errc::failed_to_create_object,
error(std::errc(errno))));
return boolean(noref, uobj);
}
boolean::boolean()
: boolean(false)
{
}
boolean::boolean(contained_type value)
: object(noref, [&] {
auto *uobj = ::ucl_object_frombool(value);
if (uobj == nullptr)
throw std::system_error(
std::make_error_code(std::errc(errno)));
return uobj;
}())
{
}
boolean::boolean(ref_t, ::ucl_object_t const *uobj)
: object(nihil::ucl::ref, [&] {
auto actual_type = static_cast<object_type>(
::ucl_object_type(uobj));
if (actual_type != boolean::ucl_type)
throw type_mismatch(boolean::ucl_type, actual_type);
return uobj;
}())
{
}
boolean::boolean(noref_t, ::ucl_object_t *uobj)
: object(nihil::ucl::noref, [&] {
auto actual_type = static_cast<object_type>(
::ucl_object_type(uobj));
if (actual_type != boolean::ucl_type)
throw type_mismatch(boolean::ucl_type, actual_type);
return uobj;
}())
{
}
auto boolean::value(this boolean const &self)
-> contained_type
{
auto v = contained_type{};
auto const *uobj = self.get_ucl_object();
if (::ucl_object_toboolean_safe(uobj, &v))
return v;
std::abort();
}
auto operator== (boolean const &a, boolean const &b)
-> bool
{
return a.value() == b.value();
}
auto operator<=> (boolean const &a, boolean const &b)
-> std::strong_ordering
{
return a.value() <=> b.value();
}
auto operator== (boolean const &a, boolean::contained_type b)
-> bool
{
return a.value() == b;
}
auto operator<=> (boolean const &a, boolean::contained_type b)
-> std::strong_ordering
{
return a.value() <=> b;
}
} // namespace nihil::ucl
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