mirror/Sprout
1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout.git synced 2024-12-23 21:25:49 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

sprout/variant.hpp 追加

Browse source 
sprout/type.hpp 追加
This commit is contained in:
bolero-MURAKAMI 2011-11-06 10:56:57 +09:00
parent 488df1e685
commit b6bf03c4ed
30 changed files with 905 additions and 102 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sprout/tuple.hpp
View file

@ -3,6 +3,6 @@
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/tuple_comparison.hpp>
#include <sprout/tuple/traits.hpp>
#endif // #ifndef SPROUT_TUPLE_HPP

25
sprout/tuple/operation/append_back.hpp
View file

@ -4,8 +4,9 @@
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/tuple/traits.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/functions.hpp>
#include <sprout/type/operation/append_back.hpp>
namespace sprout {
namespace tuples {
@ -14,25 +15,9 @@ namespace sprout {
// append_back
//
template<typename Tuple, typename InputTuple>
struct append_back {
private:
template<typename IndexTuple1, typename IndexTuple2>
struct apply_impl;
template<std::ptrdiff_t... Indexes1, std::ptrdiff_t... Indexes2>
struct apply_impl<sprout::index_tuple<Indexes1...>, sprout::index_tuple<Indexes2...> >
: public sprout::tuples::rebind_types<
Tuple
>::template apply<
typename sprout::tuples::tuple_element<Indexes1, Tuple>::type...,
typename sprout::tuples::tuple_element<Indexes2, InputTuple>::type...
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::tuples::tuple_size<Tuple>::value>::type,
typename sprout::index_range<0, sprout::tuples::tuple_size<InputTuple>::value>::type
>::type type;
};
struct append_back
: public sprout::types::append_back<Tuple, InputTuple>
{};
} // namespace result_of
namespace detail {

25
sprout/tuple/operation/append_front.hpp
View file

@ -4,8 +4,9 @@
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/tuple/traits.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/functions.hpp>
#include <sprout/type/operation/append_front.hpp>
namespace sprout {
namespace tuples {
@ -14,25 +15,9 @@ namespace sprout {
// append_front
//
template<typename Tuple, typename InputTuple>
struct append_front {
private:
template<typename IndexTuple1, typename IndexTuple2>
struct apply_impl;
template<std::ptrdiff_t... Indexes1, std::ptrdiff_t... Indexes2>
struct apply_impl<sprout::index_tuple<Indexes1...>, sprout::index_tuple<Indexes2...> >
: public sprout::tuples::rebind_types<
Tuple
>::template apply<
typename sprout::tuples::tuple_element<Indexes2, InputTuple>::type...,
typename sprout::tuples::tuple_element<Indexes1, Tuple>::type...
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::tuples::tuple_size<Tuple>::value>::type,
typename sprout::index_range<0, sprout::tuples::tuple_size<InputTuple>::value>::type
>::type type;
};
struct append_front
: public sprout::types::append_front<Tuple, InputTuple>
{};
} // namespace result_of
namespace detail {

24
sprout/tuple/operation/push_back.hpp
View file

@ -4,8 +4,9 @@
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/tuple/traits.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/functions.hpp>
#include <sprout/type/operation/push_back.hpp>
namespace sprout {
namespace tuples {
@ -14,24 +15,9 @@ namespace sprout {
// push_back
//
template<typename Tuple, typename T>
struct push_back {
private:
template<typename IndexTuple>
struct apply_impl;
template<std::ptrdiff_t... Indexes>
struct apply_impl<sprout::index_tuple<Indexes...>>
: public sprout::tuples::rebind_types<
Tuple
>::template apply<
typename sprout::tuples::tuple_element<Indexes, Tuple>::type...,
T
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::tuples::tuple_size<Tuple>::value>::type
>::type type;
};
struct push_back
: public sprout::types::push_back<Tuple, T>
{};
} // namespace result_of
namespace detail {

24
sprout/tuple/operation/push_front.hpp
View file

@ -4,8 +4,9 @@
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/tuple/traits.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/functions.hpp>
#include <sprout/type/operation/push_front.hpp>
namespace sprout {
namespace tuples {
@ -14,24 +15,9 @@ namespace sprout {
// push_front
//
template<typename Tuple, typename T>
struct push_front {
private:
template<typename IndexTuple>
struct apply_impl;
template<std::ptrdiff_t... Indexes>
struct apply_impl<sprout::index_tuple<Indexes...>>
: public sprout::tuples::rebind_types<
Tuple
>::template apply<
T,
typename sprout::tuples::tuple_element<Indexes, Tuple>::type...
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::tuples::tuple_size<Tuple>::value>::type
>::type type;
};
struct push_front
: public sprout::types::push_front<Tuple, T>
{};
} // namespace result_of
namespace detail {

19
sprout/tuple/traits.hpp
View file

@ -3,6 +3,7 @@
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/type/rebind_types.hpp>
namespace sprout {
namespace tuples {
@ -24,20 +25,9 @@ namespace sprout {
// rebind_types
//
template<typename Tuple>
struct rebind_types {
public:
template<typename... Types>
struct apply;
};
template<typename... Ts>
struct rebind_types<sprout::tuples::tuple<Ts...> > {
public:
template<typename... Types>
struct apply {
public:
typedef sprout::tuples::tuple<Types...> type;
};
};
struct rebind_types
: public sprout::types::rebind_types<Tuple>
{};
//
// clone_functor
@ -93,7 +83,6 @@ namespace sprout {
} // namespace tuples
using sprout::tuples::tuple_traits;
using sprout::tuples::rebind_types;
} // namespace sprout
#endif // #ifndef SPROUT_TUPLE_TRAITS_HPP

6
sprout/tuple/tuple.hpp
View file

@ -229,7 +229,7 @@ namespace sprout {
: inherited_type(static_cast<sprout::tuples::detail::tuple_impl<0, UTypes...>&&>(t))
{}
// tuple assignment
tuple& operator=(const tuple& rhs) {
tuple& operator=(tuple const& rhs) {
static_cast<inherited_type&>(*this) = rhs;
return *this;
}
@ -248,7 +248,7 @@ namespace sprout {
return *this;
}
// tuple swap
void swap(tuple& other) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(other.swap(other))) {
void swap(tuple& other) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(inherited_type::swap(other))) {
inherited_type::swap(other);
}
};
@ -426,4 +426,6 @@ namespace sprout {
using sprout::tuples::get;
} // namespace sprout
#include <sprout/tuple/tuple_comparison.hpp>
#endif // #ifndef SPROUT_TUPLE_TUPLE_HPP

12
sprout/tuple/tuple_comparison.hpp
View file

@ -46,7 +46,7 @@ namespace sprout {
};
} // namespace detail
template<typename... TTypes, typename... UTypes>
bool SPROUT_CONSTEXPR inline operator==(
SPROUT_CONSTEXPR inline bool operator==(
sprout::tuples::tuple<TTypes...> const& lhs,
sprout::tuples::tuple<UTypes...> const& rhs
)
@ -62,7 +62,7 @@ namespace sprout {
>::eq(lhs, rhs);
}
template<typename... TTypes, typename... UTypes>
bool SPROUT_CONSTEXPR inline operator<(
SPROUT_CONSTEXPR inline bool operator<(
sprout::tuples::tuple<TTypes...> const& lhs,
sprout::tuples::tuple<UTypes...> const& rhs
)
@ -78,7 +78,7 @@ namespace sprout {
>::less(lhs, rhs);
}
template<typename... TTypes, typename... UTypes>
bool SPROUT_CONSTEXPR inline operator!=(
SPROUT_CONSTEXPR inline bool operator!=(
sprout::tuples::tuple<TTypes...> const& lhs,
sprout::tuples::tuple<UTypes...> const& rhs
)
@ -86,7 +86,7 @@ namespace sprout {
return !(lhs == rhs);
}
template<typename... TTypes, typename... UTypes>
bool SPROUT_CONSTEXPR inline operator>(
SPROUT_CONSTEXPR inline bool operator>(
sprout::tuples::tuple<TTypes...> const& lhs,
sprout::tuples::tuple<UTypes...> const& rhs
)
@ -94,7 +94,7 @@ namespace sprout {
return rhs < lhs;
}
template<typename... TTypes, typename... UTypes>
bool SPROUT_CONSTEXPR inline operator<=(
SPROUT_CONSTEXPR inline bool operator<=(
sprout::tuples::tuple<TTypes...> const& lhs,
sprout::tuples::tuple<UTypes...> const& rhs
)
@ -102,7 +102,7 @@ namespace sprout {
return !(rhs < lhs);
}
template<typename... TTypes, typename... UTypes>
bool SPROUT_CONSTEXPR inline operator>=(
SPROUT_CONSTEXPR inline bool operator>=(
sprout::tuples::tuple<TTypes...> const& lhs,
sprout::tuples::tuple<UTypes...> const& rhs
)

11
sprout/type.hpp Normal file
View file

@ -0,0 +1,11 @@
#ifndef SPROUT_TYPE_HPP
#define SPROUT_TYPE_HPP
#include <sprout/config.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/type_tuple.hpp>
#include <sprout/type/rebind_types.hpp>
#include <sprout/type/algorithm.hpp>
#include <sprout/type/operation.hpp>
#endif // #ifndef SPROUT_TYPE_HPP

7
sprout/type/algorithm.hpp Normal file
View file

@ -0,0 +1,7 @@
#ifndef SPROUT_TYPE_ALGORITHM_HPP
#define SPROUT_TYPE_ALGORITHM_HPP
#include <sprout/config.hpp>
#include <sprout/type/algorithm/find_index.hpp>
#endif // #ifndef SPROUT_TYPE_ALGORITHM_HPP

49
sprout/type/algorithm/find_index.hpp Normal file
View file

@ -0,0 +1,49 @@
#ifndef SPROUT_TYPE_ALGORITHM_FIND_INDEX_HPP
#define SPROUT_TYPE_ALGORITHM_FIND_INDEX_HPP
#include <cstddef>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/type/tuple.hpp>
namespace sprout {
namespace types {
namespace detail {
template<typename Tuple, typename T, std::size_t I, typename = void>
struct find_index_impl;
template<typename Tuple, typename T, std::size_t I>
struct find_index_impl<
Tuple,
T,
I,
typename std::enable_if<
I == sprout::types::tuple_size<Tuple>::value
|| std::is_same<typename sprout::types::tuple_element<I, Tuple>::type, T>::value
>::type
>
: public std::integral_constant<std::size_t, I>
{};
template<typename Tuple, typename T, std::size_t I>
struct find_index_impl<
Tuple,
T,
I,
typename std::enable_if<
I != sprout::types::tuple_size<Tuple>::value
&& !std::is_same<typename sprout::types::tuple_element<I, Tuple>::type, T>::value
>::type
>
: public sprout::types::detail::find_index_impl<Tuple, T, I + 1>
{};
} // namespace detail
//
// find_index
//
template<typename Tuple, typename T>
struct find_index
: public sprout::types::detail::find_index_impl<Tuple, T, 0>
{};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_ALGORITHM_FIND_INDEX_HPP

9
sprout/type/iterator.hpp Normal file
View file

@ -0,0 +1,9 @@
#ifndef SPROUT_TYPE_ITERATOR_HPP
#define SPROUT_TYPE_ITERATOR_HPP
#include <sprout/config.hpp>
#include <sprout/type/iterator/next.hpp>
#include <sprout/type/iterator/prev.hpp>
#include <sprout/type/iterator/deref.hpp>
#endif // #ifndef SPROUT_TYPE_ITERATOR_HPP

19
sprout/type/iterator/deref.hpp Normal file
View file

@ -0,0 +1,19 @@
#ifndef SPROUT_TYPE_ITERATOR_DEREF_HPP
#define SPROUT_TYPE_ITERATOR_DEREF_HPP
#include <sprout/config.hpp>
namespace sprout {
namespace types {
//
// deref
//
template<typename Iterator>
struct deref {
public:
typedef typename Iterator::type type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_ITERATOR_DEREF_HPP

91
sprout/type/iterator/index_iterator.hpp Normal file
View file

@ -0,0 +1,91 @@
#ifndef SPROUT_TYPE_ITERATOR_INDEX_ITERATOR_HPP
#define SPROUT_TYPE_ITERATOR_INDEX_ITERATOR_HPP
#include <cstddef>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/void.hpp>
namespace sprout {
namespace types {
template<typename Tuple, std::ptrdiff_t Index>
struct index_iterator;
namespace detail {
//
// index_iterator_impl
//
template<typename Tuple, std::ptrdiff_t Index, typename = void>
struct index_iterator_impl;
template<typename Tuple, std::ptrdiff_t Index>
struct index_iterator_impl<
Tuple,
Index,
typename std::enable_if<
sprout::types::tuple_size<Tuple>::value == 0
|| (Index < 0)
|| (Index > sprout::types::tuple_size<Tuple>::value)
>::type
> {
public:
typedef sprout::types::void_ type;
typedef sprout::types::void_ next;
typedef sprout::types::void_ prev;
};
template<typename Tuple, std::ptrdiff_t Index>
struct index_iterator_impl<
Tuple,
Index,
typename std::enable_if<
sprout::types::tuple_size<Tuple>::value != 0
&& Index == 0
>::type
> {
public:
typedef typename sprout::types::tuple_element<Index, Tuple>::type type;
typedef sprout::types::index_iterator<Tuple, Index + 1> next;
typedef sprout::types::void_ prev;
};
template<typename Tuple, std::ptrdiff_t Index>
struct index_iterator_impl<
Tuple,
Index,
typename std::enable_if<
sprout::types::tuple_size<Tuple>::value != 0
&& Index == sprout::types::tuple_size<Tuple>::value
>::type
> {
public:
typedef sprout::types::void_ type;
typedef sprout::types::void_ next;
typedef sprout::types::index_iterator<Tuple, sprout::types::tuple_size<Tuple>::value - 1> prev;
};
template<typename Tuple, std::ptrdiff_t Index>
struct index_iterator_impl<
Tuple,
Index,
typename std::enable_if<
sprout::types::tuple_size<Tuple>::value != 0
&& (Index > 0)
&& (Index < sprout::types::tuple_size<Tuple>::value)
>::type
> {
public:
typedef typename sprout::types::tuple_element<Index, Tuple>::type type;
typedef sprout::types::index_iterator<Tuple, Index + 1> next;
typedef sprout::types::index_iterator<Tuple, Index - 1> prev;
};
} // namespace detail
//
// index_iterator
//
template<typename Tuple, std::ptrdiff_t Index>
struct index_iterator
: public sprout::types::detail::index_iterator_impl<Tuple, Index>
, public std::integral_constant<std::ptrdiff_t, Index>
{};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_ITERATOR_INDEX_ITERATOR_HPP

19
sprout/type/iterator/next.hpp Normal file
View file

@ -0,0 +1,19 @@
#ifndef SPROUT_TYPE_ITERATOR_NEXT_HPP
#define SPROUT_TYPE_ITERATOR_NEXT_HPP
#include <sprout/config.hpp>
namespace sprout {
namespace types {
//
// next
//
template<typename Iterator>
struct next {
public:
typedef typename Iterator::next type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_ITERATOR_NEXT_HPP

19
sprout/type/iterator/prev.hpp Normal file
View file

@ -0,0 +1,19 @@
#ifndef SPROUT_TYPE_ITERATOR_PREV_HPP
#define SPROUT_TYPE_ITERATOR_PREV_HPP
#include <sprout/config.hpp>
namespace sprout {
namespace types {
//
// prev
//
template<typename Iterator>
struct prev {
public:
typedef typename Iterator::prev type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_ITERATOR_PREV_HPP

10
sprout/type/operation.hpp Normal file
View file

@ -0,0 +1,10 @@
#ifndef SPROUT_TYPE_OPERATION_HPP
#define SPROUT_TYPE_OPERATION_HPP
#include <sprout/config.hpp>
#include <sprout/type/operation/append_back.hpp>
#include <sprout/type/operation/append_front.hpp>
#include <sprout/type/operation/push_back.hpp>
#include <sprout/type/operation/push_front.hpp>
#endif // #ifndef SPROUT_TYPE_OPERATION_HPP

38
sprout/type/operation/append_back.hpp Normal file
View file

@ -0,0 +1,38 @@
#ifndef SPROUT_TYPE_OPERATION_APPEND_BACK_HPP
#define SPROUT_TYPE_OPERATION_APPEND_BACK_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/rebind_types.hpp>
namespace sprout {
namespace types {
//
// append_back
//
template<typename Tuple, typename InputTuple>
struct append_back {
private:
template<typename IndexTuple1, typename IndexTuple2>
struct apply_impl;
template<std::ptrdiff_t... Indexes1, std::ptrdiff_t... Indexes2>
struct apply_impl<sprout::index_tuple<Indexes1...>, sprout::index_tuple<Indexes2...> >
: public sprout::types::rebind_types<
Tuple
>::template apply<
typename sprout::types::tuple_element<Indexes1, Tuple>::type...,
typename sprout::types::tuple_element<Indexes2, InputTuple>::type...
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::types::tuple_size<Tuple>::value>::type,
typename sprout::index_range<0, sprout::types::tuple_size<InputTuple>::value>::type
>::type type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_OPERATION_APPEND_BACK_HPP

38
sprout/type/operation/append_front.hpp Normal file
View file

@ -0,0 +1,38 @@
#ifndef SPROUT_TYPE_OPERATION_APPEND_FRONT_HPP
#define SPROUT_TYPE_OPERATION_APPEND_FRONT_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/rebind_types.hpp>
namespace sprout {
namespace types {
//
// append_front
//
template<typename Tuple, typename InputTuple>
struct append_front {
private:
template<typename IndexTuple1, typename IndexTuple2>
struct apply_impl;
template<std::ptrdiff_t... Indexes1, std::ptrdiff_t... Indexes2>
struct apply_impl<sprout::index_tuple<Indexes1...>, sprout::index_tuple<Indexes2...> >
: public sprout::types::rebind_types<
Tuple
>::template apply<
typename sprout::types::tuple_element<Indexes2, InputTuple>::type...,
typename sprout::types::tuple_element<Indexes1, Tuple>::type...
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::types::tuple_size<Tuple>::value>::type,
typename sprout::index_range<0, sprout::types::tuple_size<InputTuple>::value>::type
>::type type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_OPERATION_APPEND_FRONT_HPP

37
sprout/type/operation/push_back.hpp Normal file
View file

@ -0,0 +1,37 @@
#ifndef SPROUT_TYPE_OPERATION_PUSH_BACK_HPP
#define SPROUT_TYPE_OPERATION_PUSH_BACK_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/rebind_types.hpp>
namespace sprout {
namespace types {
//
// push_back
//
template<typename Tuple, typename T>
struct push_back {
private:
template<typename IndexTuple>
struct apply_impl;
template<std::ptrdiff_t... Indexes>
struct apply_impl<sprout::index_tuple<Indexes...> >
: public sprout::types::rebind_types<
Tuple
>::template apply<
typename sprout::types::tuple_element<Indexes, Tuple>::type...,
T
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::types::tuple_size<Tuple>::value>::type
>::type type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_OPERATION_PUSH_BACK_HPP

37
sprout/type/operation/push_front.hpp Normal file
View file

@ -0,0 +1,37 @@
#ifndef SPROUT_TYPE_OPERATION_PUSH_FRONT_HPP
#define SPROUT_TYPE_OPERATION_PUSH_FRONT_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/rebind_types.hpp>
namespace sprout {
namespace types {
//
// push_front
//
template<typename Tuple, typename T>
struct push_front {
private:
template<typename IndexTuple>
struct apply_impl;
template<std::ptrdiff_t... Indexes>
struct apply_impl<sprout::index_tuple<Indexes...> >
: public sprout::types::rebind_types<
Tuple
>::template apply<
T,
typename sprout::types::tuple_element<Indexes, Tuple>::type...
>
{};
public:
typedef typename apply_impl<
typename sprout::index_range<0, sprout::types::tuple_size<Tuple>::value>::type
>::type type;
};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_OPERATION_PUSH_FRONT_HPP

29
sprout/type/rebind_types.hpp Normal file
View file

@ -0,0 +1,29 @@
#ifndef SPROUT_TYPE_REBIND_TYPES_HPP
#define SPROUT_TYPE_REBIND_TYPES_HPP
#include <sprout/config.hpp>
#include <sprout/type/type_tuple.hpp>
namespace sprout {
namespace types {
//
// rebind_types
//
template<typename Tuple>
struct rebind_types;
template<typename... Ts>
struct rebind_types<sprout::types::type_tuple<Ts...> > {
public:
template<typename... Types>
struct apply {
public:
typedef sprout::types::type_tuple<Types...> type;
};
};
} // namespace types
using sprout::types::rebind_types;
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_REBIND_TYPES_HPP

7
sprout/type/seq/algorithm.hpp Normal file
View file

@ -0,0 +1,7 @@
#ifndef SPROUT_TYPE_SEQ_ALGORITHM_HPP
#define SPROUT_TYPE_SEQ_ALGORITHM_HPP
#include <sprout/config.hpp>
#include <sprout/type/seq/algorithm/find.hpp>
#endif // #ifndef SPROUT_TYPE_SEQ_ALGORITHM_HPP

71
sprout/type/seq/algorithm/find.hpp Normal file
View file

@ -0,0 +1,71 @@
#ifndef SPROUT_TYPE_SEQ_ALGORITHM_FIND_HPP
#define SPROUT_TYPE_SEQ_ALGORITHM_FIND_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/type/tuple.hpp>
namespace sprout {
namespace types {
namespace seq {
namespace detail {
template<typename First, typename Last, typename T, typename = void>
struct find_impl;
template<typename First, typename Last, typename T>
struct find_impl<
First,
Last,
T,
typename std::enable_if<
std::is_same<First, Last>::value
>::type
> {
public:
typedef Last type;
};
template<typename First, typename Last, typename T>
struct find_impl<
First,
Last,
T,
typename std::enable_if<
!std::is_same<First, Last>::value
&& std::is_same<typename sprout::types::deref<First>::type, T>::value
>::type
> {
public:
typedef First type;
};
template<typename First, typename Last, typename T>
struct find_impl<
First,
Last,
T,
typename std::enable_if<
!std::is_same<First, Last>::value
&& !std::is_same<typename sprout::types::deref<First>::type, T>::value
>::type
>
: public sprout::types::seq::detail::find_impl<
typename sprout::types::next<First>::type,
Last,
T
>
{};
} // namespace detail
//
// find
//
template<typename ForwardSequence, typename T>
struct find
: public sprout::types::seq::detail::find_impl<
typename sprout::types::begin<ForwardSequence>::type,
typename sprout::types::end<ForwardSequence>::type,
T
>
{};
} // namespace seq
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_SEQ_ALGORITHM_FIND_HPP

42
sprout/type/tuple.hpp Normal file
View file

@ -0,0 +1,42 @@
#ifndef SPROUT_TYPE_TUPLE_HPP
#define SPROUT_TYPE_TUPLE_HPP
#include <cstddef>
#include <tuple>
#include <sprout/config.hpp>
namespace sprout {
namespace types {
//
// begin
//
template<typename T>
struct begin {
typedef typename T::begin type;
};
//
// end
//
template<typename T>
struct end {
typedef typename T::end type;
};
//
// tuple_size
//
template<typename T>
struct tuple_size
: public std::tuple_size<T>
{};
//
// tuple_element
//
template<std::size_t I, typename T>
struct tuple_element
: public std::tuple_element<I, T>
{};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_TUPLE_HPP

60
sprout/type/type_tuple.hpp Normal file
View file

@ -0,0 +1,60 @@
#ifndef SPROUT_TYPE_TYPE_TUPLE_HPP
#define SPROUT_TYPE_TYPE_TUPLE_HPP
#include <cstddef>
#include <tuple>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/type/tuple.hpp>
#include <sprout/type/iterator.hpp>
#include <sprout/type/iterator/index_iterator.hpp>
namespace sprout {
namespace types {
//
// type_tuple
//
template<typename... Types>
struct type_tuple {
public:
typedef sprout::types::index_iterator<type_tuple, 0> begin;
typedef sprout::types::index_iterator<type_tuple, sizeof...(Types)> end;
};
namespace detail {
template<std::size_t I, typename T>
struct tuple_element_impl;
template<typename Head, typename... Tail>
struct tuple_element_impl<0, sprout::types::type_tuple<Head, Tail...> > {
public:
typedef Head type;
};
template<std::size_t I, typename Head, typename... Tail>
struct tuple_element_impl<I, sprout::types::type_tuple<Head, Tail...> >
: public sprout::types::detail::tuple_element_impl<I - 1, sprout::types::type_tuple<Tail...> >
{};
} // namespace detail
} // namespace types
using sprout::types::type_tuple;
} // namespace sprout
namespace std {
//
// tuple_size
//
template<typename... Types>
struct tuple_size<sprout::types::type_tuple<Types...> >
: public std::integral_constant<std::size_t, sizeof...(Types)>
{};
//
// tuple_element
//
template<std::size_t I, typename... Types>
struct tuple_element<I, sprout::types::type_tuple<Types...> >
: public sprout::types::detail::tuple_element_impl<I, sprout::types::type_tuple<Types...> >
{};
} // namespace std
#endif // #ifndef SPROUT_TYPE_TYPE_TUPLE_HPP

15
sprout/type/void.hpp Normal file
View file

@ -0,0 +1,15 @@
#ifndef SPROUT_TYPE_VOID_HPP
#define SPROUT_TYPE_VOID_HPP
#include <sprout/config.hpp>
namespace sprout {
namespace types {
//
// void_
//
struct void_ {};
} // namespace types
} // namespace sprout
#endif // #ifndef SPROUT_TYPE_VOID_HPP

8
sprout/variant.hpp Normal file
View file

@ -0,0 +1,8 @@
#ifndef SPROUT_VARIANT_HPP
#define SPROUT_VARIANT_HPP
#include <sprout/config.hpp>
#include <sprout/variant/variant.hpp>
#include <sprout/variant/get.hpp>
#endif // #ifndef SPROUT_VARIANT_HPP

21
sprout/variant/get.hpp Normal file
View file

@ -0,0 +1,21 @@
#ifndef SPROUT_VARIANT_GET_HPP
#define SPROUT_VARIANT_GET_HPP
#include <sprout/config.hpp>
#include <sprout/variant/variant.hpp>
namespace sprout {
//
// get
//
template<typename U, typename... Types>
SPROUT_CONSTEXPR U const& get(sprout::variant<Types...> const& operand) {
return operand.template get<U>();
}
template<typename U, typename... Types>
U& get(sprout::variant<Types...>& operand) {
return operand.template get<U>();
}
} // namespace sprout
#endif // #ifndef SPROUT_VARIANT_GET_HPP

233
sprout/variant/variant.hpp Normal file
View file

@ -0,0 +1,233 @@
#ifndef SPROUT_VARIANT_VARIANT_HPP
#define SPROUT_VARIANT_VARIANT_HPP
#include <cstddef>
#include <utility>
#include <stdexcept>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/utility/operation.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/functions.hpp>
#include <sprout/type/algorithm/find_index.hpp>
namespace sprout {
namespace detail {
template<typename... Types>
class variant_impl {
protected:
typedef sprout::tuples::tuple<Types...> tuple_type;;
private:
template<typename T, std::ptrdiff_t... Indexes>
static SPROUT_CONSTEXPR tuple_type init(T&& operand, sprout::index_tuple<Indexes...>) {
return sprout::tuples::make_clone<tuple_type>(
typename sprout::tuples::tuple_element<Indexes, tuple_type>::type()...,
sprout::forward<T>(operand)
);
}
protected:
tuple_type tuple_;
int which_;
protected:
SPROUT_CONSTEXPR variant_impl()
: tuple_()
, which_()
{}
template<typename T, typename Index>
SPROUT_CONSTEXPR variant_impl(T&& operand, Index)
: tuple_(init(sprout::forward<T>(operand), typename sprout::index_range<0, Index::value>::type()))
, which_(Index::value)
{
static_assert(Index::value < sizeof...(Types), "variant<>: invalid operand");
}
void swap(variant_impl& other) SPROUT_NOEXCEPT_EXPR(
SPROUT_NOEXCEPT_EXPR(swap(std::declval<tuple_type&>(), std::declval<tuple_type&>()))
)
{
using std::swap;
swap(tuple_, other.tuple_);
swap(which_, other.which_);
}
variant_impl& operator=(variant_impl const&) = default;
};
} // namespace detail
//
// variant
//
template<typename... Types>
class variant
: private sprout::detail::variant_impl<Types...>
{
private:
typedef sprout::detail::variant_impl<Types...> impl_type;;
public:
typedef typename impl_type::tuple_type tuple_type;;
private:
template<int I>
static SPROUT_CONSTEXPR typename std::enable_if<
I == sizeof...(Types),
bool
>::type eq(tuple_type const& l, tuple_type const& r, int which) {
return false;
}
template<int I>
static SPROUT_CONSTEXPR typename std::enable_if<
I != sizeof...(Types),
bool
>::type eq(tuple_type const& l, tuple_type const& r, int which) {
return I == which
? sprout::tuples::get<I>(l) == sprout::tuples::get<I>(r)
: eq<I + 1>(l, r, which)
;
}
template<int I>
static SPROUT_CONSTEXPR typename std::enable_if<
static_cast<std::size_t>(I) == sizeof...(Types),
bool
>::type lt(tuple_type const& l, tuple_type const& r, int which) {
return false;
}
template<int I>
static SPROUT_CONSTEXPR typename std::enable_if<
static_cast<std::size_t>(I) != sizeof...(Types),
bool
>::type lt(tuple_type const& l, tuple_type const& r, int which) {
return I == which
? sprout::tuples::get<I>(l) < sprout::tuples::get<I>(r)
: lt<I + 1>(l, r, which)
;
}
template<int I, typename Elem, typename Traits>
static typename std::enable_if<
static_cast<std::size_t>(I) == sizeof...(Types),
std::basic_ostream<Elem, Traits>&
>::type output(std::basic_ostream<Elem, Traits>& os, tuple_type const& t, int which) {
return os;
}
template<int I, typename Elem, typename Traits>
static typename std::enable_if<
static_cast<std::size_t>(I) != sizeof...(Types),
std::basic_ostream<Elem, Traits>&
>::type output(std::basic_ostream<Elem, Traits>& os, tuple_type const& t, int which) {
return I == which
? os << sprout::tuples::get<I>(t)
: output<I + 1>(os, t, which)
;
}
private:
using impl_type::tuple_;
using impl_type::which_;
public:
// construct/copy/destruct
SPROUT_CONSTEXPR variant()
: impl_type()
{}
variant(variant const&) = default;
template<typename T>
SPROUT_CONSTEXPR variant(T&& operand)
: impl_type(sprout::forward<T>(operand), sprout::types::find_index<tuple_type, T>())
{}
// modifiers
void swap(variant& other) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(impl_type::swap(other))) {
impl_type::swap(other);
}
variant& operator=(variant const& rhs) {
static_cast<impl_type&>(*this) = rhs;
return *this;
}
variant& operator=(variant&& rhs) SPROUT_NOEXCEPT_EXPR(std::is_nothrow_move_assignable<impl_type>::value) {
static_cast<impl_type&>(*this) = sprout::move(rhs);
return *this;
}
template<typename T>
variant& operator=(T&& rhs) {
static_cast<impl_type&>(*this) = variant(sprout::forward<T>(rhs));
return *this;
}
// queries
SPROUT_CONSTEXPR int which() const {
return which_;
}
SPROUT_CONSTEXPR bool empty() const {
return sizeof...(Types) == 0;
}
// relational
friend SPROUT_CONSTEXPR bool operator==(variant const& lhs, variant const& rhs) {
return lhs.which_ == rhs.which_ && eq<0>(lhs.tuple_, rhs.tuple_, lhs.which_);
}
friend SPROUT_CONSTEXPR bool operator!=(variant const& lhs, variant const& rhs) {
return !(lhs == rhs);
}
friend SPROUT_CONSTEXPR bool operator<(variant const& lhs, variant const& rhs) {
return lhs.which_ < rhs.which_
|| (lhs.which_ == rhs.which_ && lt<0>(lhs.tuple_, rhs.tuple_, lhs.which_))
;
}
friend SPROUT_CONSTEXPR bool operator>(variant const& lhs, variant const& rhs) {
return rhs < lhs;
}
friend SPROUT_CONSTEXPR bool operator<=(variant const& lhs, variant const& rhs) {
return !(rhs < lhs);
}
friend SPROUT_CONSTEXPR bool operator>=(variant const& lhs, variant const& rhs) {
return !(lhs < rhs);
}
template<typename Elem, typename Traits>
friend std::basic_ostream<Elem, Traits>& operator<<(std::basic_ostream<Elem, Traits>& lhs, variant const& rhs) {
return output<0>(lhs, rhs.tuple_, rhs.which_);
}
template<typename U>
SPROUT_CONSTEXPR typename std::enable_if<
sprout::types::find_index<tuple_type, U>::value != sizeof...(Types),
U const&
>::type get() const {
return sprout::types::find_index<tuple_type, U>::value == static_cast<std::size_t>(which_)
? sprout::tuples::get<sprout::types::find_index<tuple_type, U>::value>(tuple_)
: (throw std::domain_error("variant<>: bad get"), sprout::tuples::get<sprout::types::find_index<tuple_type, U>::value>(tuple_))
;
}
template<typename U>
typename std::enable_if<
sprout::types::find_index<tuple_type, U>::value != sizeof...(Types),
U&
>::type get() {
return sprout::types::find_index<tuple_type, U>::value == which_
? sprout::tuples::get<sprout::types::find_index<tuple_type, U>::value>(tuple_)
: (throw std::domain_error("variant<>: bad get"), sprout::tuples::get<sprout::types::find_index<tuple_type, U>::value>(tuple_))
;
}
};
//
// swap
//
template<typename... Types>
inline void swap(
sprout::variant<Types...>& lhs,
sprout::variant<Types...>& rhs
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
{
lhs.swap(rhs);
}
} // namespace sprout
namespace std {
//
// tuple_size
//
template<typename... Types>
struct tuple_size<sprout::variant<Types...> >
: public std::tuple_size<typename sprout::variant<Types...>::tuple_tyep>
{};
//
// tuple_element
//
template<std::size_t I, typename... Types>
struct tuple_element<I, sprout::variant<Types...> >
: public std::tuple_element<I, typename sprout::variant<Types...>::tuple_tyep>
{};
} // namespace std
#endif // #ifndef SPROUT_VARIANT_VARIANT_HPP