#ifndef CPPCORO_GENERATOR_HPP_INCLUDED

#define CPPCORO_GENERATOR_HPP_INCLUDED

#include <experimental/coroutine>

#include <type_traits>

#include <utility>

#include <exception>

#include <iterator>

#include <functional>

namespace cppcoro

{

template<typename T>

class generator;

namespace detail

{

template<typename T>

class generator_promise

};

struct generator_sentinel {};

template<typename T>

class generator_iterator

};

}

template<typename T>

class [[nodiscard]] generator

};

template<typename T>

void swap(generator<T>& a, generator<T>& b)

{

a.swap(b);

}

namespace detail

{

template<typename T>

generator<T> generator_promise<T>::get_return_object() noexcept

{

using coroutine_handle = std::experimental::coroutine_handle<generator_promise<T>>;

return generator<T>{ coroutine_handle::from_promise(*this) };

}

}

template<typename FUNC, typename T>

generator<std::invoke_result_t<FUNC&, typename generator<T>::iterator::reference>> fmap(FUNC func, generator<T> source)

}

}

#endif