boost::proto::when< Grammar, external_transform > Struct Template Reference

This specialization uses the Data parameter as a collection of transforms that can be indexed by the specified rule. More...

#include <when.hpp>

Inheritance diagram for boost::proto::when< Grammar, external_transform >:

Collaboration diagram for boost::proto::when< Grammar, external_transform >:

Classes
struct	impl

Public Types
typedef Grammar	first
typedef external_transform	second
typedef Grammar::proto_grammar	proto_grammar
typedef when< Grammar, external_transform >	transform_type

Public Member Functions
	BOOST_PROTO_CALLABLE () typedef X proto_is_transform_
BOOST_FORCEINLINE boost::proto::detail::apply_transform < transform_type(Expr const &)> ::result_type	operator() (Expr &&e) const
BOOST_FORCEINLINE boost::proto::detail::apply_transform < transform_type(Expr const &, State const &)> ::result_type	operator() (Expr &&e, State &&s) const
BOOST_FORCEINLINE boost::proto::detail::apply_transform < transform_type(Expr const &, State const &, Data const &)> ::result_type	operator() (Expr &&e, State &&s, Data &&d) const

Detailed Description

template<typename Grammar>
struct boost::proto::when< Grammar, external_transform >

This specialization uses the Data parameter as a collection of transforms that can be indexed by the specified rule.

Use when<T, external_transform> in your code when you would like to define a grammar once and use it to evaluate expressions with many different sets of transforms. The transforms are found by using the Data parameter as a map from rules to transforms.

See action_map for an example.

Member Typedef Documentation

template<typename Grammar >

typedef Grammar boost::proto::when< Grammar, external_transform >::first

template<typename Grammar >

typedef Grammar::proto_grammar boost::proto::when< Grammar, external_transform >::proto_grammar

template<typename Grammar >

typedef external_transform boost::proto::when< Grammar, external_transform >::second

typedef when< Grammar, external_transform > boost::proto::transform< when< Grammar, external_transform > , X >::transform_type

inherited

Member Function Documentation

boost::proto::transform< when< Grammar, external_transform > , X >::BOOST_PROTO_CALLABLE ( )

inherited

BOOST_FORCEINLINE boost::proto::detail::apply_transform<transform_type(Expr const &, State const &, Data const &)>::result_type boost::proto::transform< when< Grammar, external_transform > , X >::operator() ( Expr &&  e, State &&  s, Data &&  d  ) const

inlineinherited

BOOST_FORCEINLINE boost::proto::detail::apply_transform<transform_type(Expr const &, State const &)>::result_type boost::proto::transform< when< Grammar, external_transform > , X >::operator() ( Expr &&  e, State &&  s  ) const

inlineinherited

BOOST_FORCEINLINE boost::proto::detail::apply_transform<transform_type(Expr const &)>::result_type boost::proto::transform< when< Grammar, external_transform > , X >::operator() ( Expr &&  e ) const

inlineinherited

---

The documentation for this struct was generated from the following file:

• boost_1_57_0/boost/proto/transform/when.hpp