rbr::as_keyword< Keyword > Struct Template Reference

Base class for keyword definition. More...

#include <raberu/impl/keywords.hpp>

Detailed Description

template<typename Keyword>
struct rbr::as_keyword< Keyword >

Base class for keyword definition.

rbr::as_keyword provides an CRTP base class for keyword-like types. It is internally used to provide specific keyword constructors but can be used to define user-defined keyword.

Template Parameters

Keyword

Keyword type being defined

Public Types
using	tag_type = Keyword
	Derived keyword type.

Public Member Functions
template<concepts::option... Os>
constexpr decltype(auto)	operator() (Os &&... o) const
	Keyword fetching from options set.
constexpr auto	operator<=> (as_keyword const &) const noexcept=default
	Keyword comparison.
template<typename Type > requires ( accept<Type>() )
constexpr auto	operator= (Type &&v) const noexcept
	Assignment of a value to a keyword.
template<typename Func >
constexpr auto	operator| (call< Func > &&v) const noexcept
	Specify a Callable object as a default value for the keyword.
template<typename Type > requires ( accept<Type>() )
constexpr auto	operator| (Type &&v) const noexcept
	Specify a default value for the keyword.
template<typename V >
std::ostream &	show (std::ostream &os, V const &v) const
	Stream insertion function.

Static Public Member Functions
template<typename T >
static constexpr bool	accept ()
	Compile-time validation of value.