fc::typelist::runtime Namespace Reference

This namespace contains some utilities that provide runtime operations on typelists. More...

Classes
struct	wrapper
	Type wrapper object allowing arbitrary types to be passed to functions as information rather than data. More...

Functions
template<typename... Types, typename Callable , typename = std::enable_if_t<impl::length<Types...>::value != 0>, typename Return = decltype(std::declval<Callable>()(wrapper<at<list<Types...>, 0>>()))>
Return	dispatch (list< Types... >, std::size_t index, Callable c)
	Index into the typelist for a type T, and invoke the callable with an argument wrapper<T>() More...
template<typename List , typename Callable >
auto	dispatch (List l, int64_t index, Callable c)
template<typename... Types, typename Callable >
void	for_each (list< Types... >, Callable c)
	Invoke the provided callable with an argument wrapper<Type>() for each type in the list. More...

Detailed Description

This namespace contains some utilities that provide runtime operations on typelists.

Function Documentation

dispatch() [1/2]

template<typename List , typename Callable >

auto fc::typelist::runtime::dispatch	(	List	l,
		int64_t	index,
		Callable	c
	)

Definition at line 250 of file typelist.hpp.

dispatch() [2/2]

template<typename... Types, typename Callable , typename = std::enable_if_t<impl::length<Types...>::value != 0>, typename Return = decltype(std::declval<Callable>()(wrapper<at<list<Types...>, 0>>()))>

Return fc::typelist::runtime::dispatch	(	list< Types... >	,
		std::size_t	index,
		Callable	c
	)

Index into the typelist for a type T, and invoke the callable with an argument wrapper<T>()

Parameters

index	Index of the type in the typelist to invoke the callable with
c	The callable to invoke

Returns

The value returned by the callable

Note

The callable return type must be the same for all list elements

If index is out of bounds, throws std::out_of_range exception

Definition at line 243 of file typelist.hpp.

for_each()

template<typename... Types, typename Callable >

void fc::typelist::runtime::for_each	(	list< Types... >	,
		Callable	c
	)

Invoke the provided callable with an argument wrapper<Type>() for each type in the list.

Definition at line 257 of file typelist.hpp.