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template<typename T>
RecursiveGenerator<T>::RecursiveGenerator(Promise& promise) noexcept
:
d_promise(&promise)
{}
template<typename T>
RecursiveGenerator<T>:: RecursiveGenerator(RecursiveGenerator&& tmp) noexcept
:
d_promise(tmp.d_promise)
{
tmp.d_promise = 0;
}
template<typename T>
RecursiveGenerator<T>::~RecursiveGenerator()
{
if (d_promise != nullptr)
d_promise->destroy();
}
template<typename T>
RecursiveGenerator<T> &RecursiveGenerator<T>::RecursiveGenerator::operator=(
RecursiveGenerator &&tmp) noexcept
{
if (this != &tmp)
{
if (d_promise != 0)
d_promise->destroy();
d_promise = tmp.d_promise;
tmp.d_promise = 0;
}
return *this;
}
template <typename T>
RecGenIterator<T, typename RecursiveGenerator<T>::Promise>
RecursiveGenerator<T>::begin()
{
if (d_promise != nullptr)
{
d_promise->pull();
if (!d_promise->is_complete())
return RecGenIterator<T, Promise>{ d_promise };
d_promise->throw_if_exception();
}
return { };
}
template<typename T>
inline RecGenIterator<T, typename RecursiveGenerator<T>::Promise>
RecursiveGenerator<T>::end() noexcept
{
return { };
}
template<typename T>
inline void RecursiveGenerator<T>::swap(RecursiveGenerator &other) noexcept
{
std::swap(d_promise, other.d_promise);
}
template<typename FUNC, typename T>
Generator<
std::invoke_result_t<
FUNC &, typename RecursiveGenerator<T>::RecGenIterator::reference
>
> fmap(FUNC func, RecursiveGenerator<T> source)
{
for (auto &&value: source)
co_yield std::invoke(func, static_cast<decltype(value)>(value));
}
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