102 template <
typename underlying_adaptor_t>
103 class deep :
public detail::adaptor_base<deep<underlying_adaptor_t>, underlying_adaptor_t>
107 using base_type = detail::adaptor_base<deep<underlying_adaptor_t>, underlying_adaptor_t>;
116 constexpr
deep() noexcept = default;
119 constexpr
deep & operator=(
deep const &) noexcept = default;
120 constexpr
deep & operator=(
deep &&) noexcept = default;
123 using base_type::base_type;
129 using base_type::operator();
138 template <
std::ranges::input_range urng_t, typename underlying_adaptor_t_>
139 static constexpr auto impl(urng_t && urange, underlying_adaptor_t_ && deep_adaptor)
141 static_assert(std::same_as<underlying_adaptor_t_, underlying_adaptor_t>,
142 "Internally stored deep-adaptor does not match!");
144 constexpr
size_t range_dimension = range_dimension_v<urng_t>;
149 return recursive_adaptor<range_dimension>(std::forward<underlying_adaptor_t_>(deep_adaptor))(urange);
173 template <std::
size_t range_dimension>
174 static constexpr decltype(
auto) recursive_adaptor(underlying_adaptor_t deep_adaptor)
176 if constexpr (range_dimension > 1u)
179 = [adaptor = recursive_adaptor<range_dimension - 1u>(std::forward<underlying_adaptor_t>(deep_adaptor))]
180 (
auto && inner_range)
184 return adaptor(
std::forward<decltype(inner_range)>(inner_range));
209 template <
typename first_arg_t,
typename ...stored_arg_types>
211 requires (!std::ranges::input_range<first_arg_t>)
213 constexpr
auto operator()(first_arg_t && first, stored_arg_types && ...args)
const
218 auto adaptor_closure = std::get<0>(this->arguments)(std::forward<first_arg_t>(first),
219 std::forward<stored_arg_types>(args)...);
221 return deep<decltype(adaptor_closure)>{
std::move(adaptor_closure)};
225 constexpr
auto operator()()
const
230 auto adaptor_closure = std::get<0>(this->arguments)();
232 return deep<decltype(adaptor_closure)>{
std::move(adaptor_closure)};
247 template <std::ranges::input_range urng_t,
typename ...stored_arg_types>
249 requires (
sizeof...(stored_arg_types) > 0)
251 constexpr auto operator()(urng_t && urange, stored_arg_types && ...args)
const
253 auto adaptor_closure = std::get<0>(this->arguments)(std::forward<stored_arg_types>(args)...);
254 deep<decltype(adaptor_closure)> deep_adaptor{
std::move(adaptor_closure)};
255 return deep_adaptor(std::forward<urng_t>(urange));
264 template <
typename underlying_adaptor_t>
Provides seqan3::detail::adaptor_base and seqan3::detail::combined_adaptor.
A wrapper type around an existing view adaptor that enables "deep view" behaviour for that view.
Definition: deep.hpp:104
deep(underlying_adaptor_t &&inner) -> deep< underlying_adaptor_t >
Template argument deduction helper that preserves lvalue references and turns rvalue references into ...
constexpr deep() noexcept=default
Defaulted.
Provides various transformation traits used by the range module.
decltype(detail::transform< trait_t >(list_t{})) transform
Apply a transformation trait to every type in the list and return a seqan3::type_list of the results.
Definition: traits.hpp:471
auto const move
A view that turns lvalue-references into rvalue-references.
Definition: move.hpp:74
The SeqAn namespace for views.
Definition: char_to.hpp:22
SeqAn specific customisations in the standard namespace.
Adaptations of concepts from the Ranges TS.