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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#pragma once
#include <scm/detail/define.hpp>
#include <string>
namespace scm {
namespace detail {
template <typename Tag, int Seq=0>
struct definer
{
using this_t = definer;
using next_t = definer<Tag, Seq + 1>;
std::string group_name_ = {};
definer() = default;
definer(definer&&) = default;
template <int Seq2,
typename Enable=std::enable_if_t<Seq2 + 1 == Seq>>
definer(definer<Tag, Seq2>)
{}
template <typename Fn>
next_t define(std::string name, Fn fn) &&
{
define_impl<this_t>(name, fn);
return { std::move(*this) };
}
template <typename Fn>
next_t maker(Fn fn) &&
{
define_impl<this_t>("make", fn);
return { std::move(*this) };
}
};
template <typename Tag, int Seq=0>
struct group_definer
{
using this_t = group_definer;
using next_t = group_definer<Tag, Seq + 1>;
std::string group_name_ = {};
group_definer(std::string name)
: group_name_{std::move(name)} {}
group_definer(group_definer&&) = default;
template <int Seq2,
typename Enable=std::enable_if_t<Seq2 + 1 == Seq>>
group_definer(group_definer<Tag, Seq2>)
{}
template <typename Fn>
next_t define(std::string name, Fn fn) &&
{
define_impl<this_t>(group_name_ + "-" + name, fn);
return { std::move(*this) };
}
};
} // namespace detail
template <typename Tag=void>
detail::definer<Tag> group()
{
return {};
}
template <typename Tag=void>
detail::group_definer<Tag> group(std::string name)
{
return { std::move(name) };
}
} // namespace scm
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