coffee/continuable
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Naios 2015-07-12 22:41:28 +02:00
parent 5b4fad95ef
commit bd34deedee
1 changed files with 29 additions and 26 deletions
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55
include/Continuable.h
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@ -357,6 +357,31 @@ namespace detail
typedef Tuple tuple; typedef Tuple tuple;
}; };
template<typename _CTy, typename... _ATy>
struct continuable_returner
{
typename std::decay<_CTy>::type returning_continuable;
continuable_returner(typename std::decay<_CTy>::type&& returning_continuable_)
: returning_continuable(returning_continuable_) { }
continuable_returner(continuable_returner&) = delete;
continuable_returner& operator= (continuable_returner&) = delete;
continuable_returner& operator= (continuable_returner&& right)
{
returning_continuable = std::move(right.returning_continuable);
return *this;
};
auto operator()(_ATy&&...)
-> typename std::decay<_CTy>::type
{
return std::move(returning_continuable);
}
};
/// Continuable processing detail implementation /// Continuable processing detail implementation
template <typename... _ATy> template <typename... _ATy>
struct functional_traits struct functional_traits
@ -400,31 +425,6 @@ namespace detail
return std::forward<_CTy>(functional); return std::forward<_CTy>(functional);
} }
template<typename _CTy>
struct continuable_returner
{
typename std::decay<_CTy>::type returning_continuable;
continuable_returner(typename std::decay<_CTy>::type&& returning_continuable_)
: returning_continuable(std::move(returning_continuable_)) { }
continuable_returner(continuable_returner&) = delete;
continuable_returner& operator= (continuable_returner&) = delete;
continuable_returner& operator= (continuable_returner&& right)
{
returning_continuable = std::move(right.returning_continuable);
return *this;
};
auto operator()(_ATy&&...)
-> typename std::decay<_CTy>::type
{
return std::move(returning_continuable);
}
};
/// Wrap continuables into the continuable returning functional type. /// Wrap continuables into the continuable returning functional type.
template<typename _CTy> template<typename _CTy>
static auto box_continuable_trait(_CTy&& continuable) static auto box_continuable_trait(_CTy&& continuable)
@ -440,7 +440,10 @@ namespace detail
static_assert(std::is_rvalue_reference<_CTy&&>::value, static_assert(std::is_rvalue_reference<_CTy&&>::value,
"Given continuable must be passed as r-value!"); "Given continuable must be passed as r-value!");
return continuable_returner<_CTy>(std::forward<_CTy>(continuable)); std::function<typename std::decay<_CTy>::type(_ATy...)> returning_function
= continuable_returner<_CTy, _ATy...>(std::forward<_CTy>(continuable));
return std::move(returning_function);
// Trick C++11 lambda capture rules for non copyable but moveable continuables. // Trick C++11 lambda capture rules for non copyable but moveable continuables.
// TODO Use the stack instead of heap variables. // TODO Use the stack instead of heap variables.