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/*
* This source code is released into the public domain.
*/
module;
#include <cassert>
#include <cstdint>
#include <cstdlib>
#include <string>
#include <ucl.h>
export module nihil.ucl:boolean;
import :object;
namespace nihil::ucl {
export struct boolean final : object {
using contained_type = bool;
inline static constexpr object_type ucl_type = object_type::boolean;
// Create a new boolean from a UCL object.
boolean(ref_t, ::ucl_object_t const *uobj)
: object(nihil::ucl::ref, uobj)
{
if (type() != ucl_type)
throw type_mismatch(ucl_type, type());
}
boolean(noref_t, ::ucl_object_t *uobj)
: object(noref, uobj)
{
if (type() != ucl_type)
throw type_mismatch(ucl_type, type());
}
// Create a new default-initialised boolean.
boolean() : boolean(false) {}
// Create a new boolean from a value.
explicit boolean(contained_type value)
: object(noref, ::ucl_object_frombool(value))
{
if (_object == nullptr)
throw error("failed to create UCL object");
}
// Return this object's value.
auto 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();
}
};
/*
* Comparison operators.
*/
export auto operator== (boolean const &a, boolean const &b)
-> bool
{
return a.value() == b.value();
}
export auto operator<=> (boolean const &a, boolean const &b)
-> std::strong_ordering
{
return a.value() <=> b.value();
}
export auto operator== (boolean const &a, boolean::contained_type b)
-> bool
{
return a.value() == b;
}
export auto operator<=> (boolean const &a, boolean::contained_type b)
-> std::strong_ordering
{
return a.value() <=> b;
}
} // namespace nihil::ucl
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