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fix _ positional-placeholder implementation

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This commit is contained in:
bolero-MURAKAMI 2013-07-10 18:06:19 +09:00
parent 95d8db9289
commit 9d7d243886
2 changed files with 54 additions and 22 deletions
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74
sprout/functional/bind/bind.hpp
View file

@ -15,6 +15,7 @@
#include <sprout/tuple/tuple/make_tuple.hpp>
#include <sprout/type/algorithm/find_index_if.hpp>
#include <sprout/type/algorithm/lower_bound_index.hpp>
#include <sprout/type/type_tuple.hpp>
#include <sprout/type/integral_array.hpp>
#include <sprout/functional/ref.hpp>
#include <sprout/functional/mem_fn.hpp>
@ -683,47 +684,76 @@ namespace sprout {
{};
namespace detail {
template<sprout::index_t Index, typename BoundArg, typename = void>
struct complete_placeholder;
template<sprout::index_t Index, typename BoundArg>
struct complete_placeholder<
Index, BoundArg,
typename std::enable_if<!sprout::is_positional_placeholder<BoundArg>::value>::type
> {
template<std::size_t N, typename BoundArg, typename = void>
struct complete_placeholder {
public:
typedef BoundArg type;
};
template<sprout::index_t Index, typename BoundArg>
template<std::size_t N, typename BoundArg>
struct complete_placeholder<
Index, BoundArg,
N, BoundArg,
typename std::enable_if<sprout::is_positional_placeholder<BoundArg>::value>::type
> {
public:
typedef sprout::placeholder<Index + 1> type;
typedef sprout::placeholder<N + 1> type;
};
template<typename Func, typename IndexTuple, typename... BoundArgs>
struct binder_complete_placeholders_impl;
template<typename Func, typename... BoundArgs, sprout::index_t... Indexes>
struct binder_complete_placeholders_impl<Func, sprout::index_tuple<Indexes...>, BoundArgs...> {
template<std::size_t I, std::size_t N, typename Bounds, typename Binder, typename = void>
struct binder_complete_placeholders_impl {
public:
typedef sprout::binder<Func (typename sprout::detail::complete_placeholder<Indexes, BoundArgs>::type...)> type;
typedef Binder type;
};
template<std::size_t I, std::size_t N, typename Bounds, typename Func, typename... As>
struct binder_complete_placeholders_impl<
I, N, Bounds, sprout::binder<Func (As...)>,
typename std::enable_if<(I < sprout::tuples::tuple_size<Bounds>::value)>::type
>
: public std::conditional<
sprout::is_positional_placeholder<typename sprout::tuples::tuple_element<I, Bounds>::type>::value,
sprout::detail::binder_complete_placeholders_impl<
I + 1, N + 1, Bounds,
sprout::binder<Func (As..., sprout::placeholder<N + 1>)>
>,
sprout::detail::binder_complete_placeholders_impl<
I + 1, N, Bounds,
sprout::binder<Func (As..., typename sprout::tuples::tuple_element<I, Bounds>::type)>
>
>::type
{};
template<typename Func, typename... BoundArgs>
struct binder_complete_placeholders
: public sprout::detail::binder_complete_placeholders_impl<Func, typename sprout::index_pack<BoundArgs...>::type, BoundArgs...>
: public sprout::detail::binder_complete_placeholders_impl<
0, 0, sprout::types::type_tuple<BoundArgs...>, sprout::binder<Func ()>
>
{};
template<typename Result, typename Func, typename IndexTuple, typename... BoundArgs>
struct res_binder_complete_placeholders_impl;
template<typename Result, typename Func, typename... BoundArgs, sprout::index_t... Indexes>
struct res_binder_complete_placeholders_impl<Result, Func, sprout::index_tuple<Indexes...>, BoundArgs...> {
template<std::size_t I, std::size_t N, typename Bounds, typename Binder, typename = void>
struct res_binder_complete_placeholders_impl {
public:
typedef sprout::res_binder<Result, Func (typename sprout::detail::complete_placeholder<Indexes, BoundArgs>::type...)> type;
typedef Binder type;
};
template<std::size_t I, std::size_t N, typename Bounds, typename Result, typename Func, typename... As>
struct res_binder_complete_placeholders_impl<
I, N, Bounds, sprout::res_binder<Result, Func (As...)>,
typename std::enable_if<(I < sprout::tuples::tuple_size<Bounds>::value)>::type
>
: public std::conditional<
sprout::is_positional_placeholder<typename sprout::tuples::tuple_element<I, Bounds>::type>::value,
sprout::detail::res_binder_complete_placeholders_impl<
I + 1, N + 1, Bounds,
sprout::res_binder<Result, Func (As..., sprout::placeholder<N + 1>)>
>,
sprout::detail::res_binder_complete_placeholders_impl<
I + 1, N, Bounds,
sprout::res_binder<Result, Func (As..., typename sprout::tuples::tuple_element<I, Bounds>::type)>
>
>::type
{};
template<typename Result, typename Func, typename... BoundArgs>
struct res_binder_complete_placeholders
: public sprout::detail::res_binder_complete_placeholders_impl<Result, Func, typename sprout::index_pack<BoundArgs...>::type, BoundArgs...>
: public sprout::detail::res_binder_complete_placeholders_impl<
0, 0, sprout::types::type_tuple<BoundArgs...>, sprout::res_binder<Result, Func ()>
>
{};
template<typename Func, typename... BoundArgs>

2
sprout/type/algorithm/lower_bound_index.hpp
View file

@ -29,6 +29,8 @@ namespace sprout {
//
// lower_bound_index
//
// TODO: O(log N) implementation
//
template<typename Tuple, typename T, typename Compare = sprout::types::less_>
struct lower_bound_index
: public sprout::types::detail::lower_bound_index_impl<0, Tuple, T, Compare>