mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-12-03 21:15:42 +00:00
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
#ifndef SPROUT_WEED_TRAITS_PARSER_ATTRIBUTE_OF_HPP
|
|
#define SPROUT_WEED_TRAITS_PARSER_ATTRIBUTE_OF_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/weed/unused.hpp>
|
|
#include <sprout/weed/expr/expr.hpp>
|
|
#include <sprout/weed/expr/tag.hpp>
|
|
#include <sprout/weed/traits/type/is_char_type.hpp>
|
|
#include <sprout/weed/traits/type/is_c_str.hpp>
|
|
#include <sprout/weed/traits/type/is_string.hpp>
|
|
#include <sprout/weed/traits/expr/is_expr.hpp>
|
|
#include <sprout/weed/traits/expr/terminal_of.hpp>
|
|
#include <sprout/weed/traits/parser/is_parser.hpp>
|
|
|
|
namespace sprout {
|
|
namespace weed {
|
|
namespace traits {
|
|
//
|
|
// attribute_of
|
|
//
|
|
template<typename T, typename Iterator, typename Context, typename = void>
|
|
struct attribute_of;
|
|
template<typename T, typename Iterator, typename Context>
|
|
struct attribute_of<T const, Iterator, Context>
|
|
: public sprout::weed::traits::attribute_of<T, Iterator, Context>
|
|
{};
|
|
template<typename T, typename Iterator, typename Context>
|
|
struct attribute_of<
|
|
T,
|
|
Iterator,
|
|
Context,
|
|
typename std::enable_if<
|
|
sprout::weed::traits::is_parser<T>::value
|
|
&& !sprout::weed::traits::is_expr<T>::value
|
|
&& !sprout::weed::traits::is_char_type<T>::value
|
|
&& !sprout::weed::traits::is_c_str<T>::value
|
|
&& !sprout::weed::traits::is_string<T>::value
|
|
>::type
|
|
> {
|
|
public:
|
|
typedef typename T::template attribute<Context, Iterator>::type type;
|
|
};
|
|
template<typename T, typename Iterator, typename Context>
|
|
struct attribute_of<
|
|
T,
|
|
Iterator,
|
|
Context,
|
|
typename std::enable_if<
|
|
sprout::weed::traits::is_expr<T>::value
|
|
>::type
|
|
> {
|
|
public:
|
|
typedef typename Context::template eval<T>::attribute_type type;
|
|
};
|
|
template<typename T, typename Iterator, typename Context>
|
|
struct attribute_of<
|
|
T,
|
|
Iterator,
|
|
Context,
|
|
typename std::enable_if<
|
|
sprout::weed::traits::is_char_type<T>::value
|
|
|| sprout::weed::traits::is_c_str<T>::value
|
|
|| sprout::weed::traits::is_string<T>::value
|
|
>::type
|
|
>
|
|
: public sprout::weed::traits::attribute_of<
|
|
typename sprout::weed::traits::terminal_of<T>::type,
|
|
Iterator,
|
|
Context
|
|
>
|
|
{};
|
|
} // namespace traits
|
|
} // namespace weed
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_WEED_TRAITS_PARSER_ATTRIBUTE_OF_HPP
|