subgrammar.hpp File Reference

#include <lexy/action/base.hpp>
#include <lexy/dsl/base.hpp>

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Classes
struct	lexyd::_subg< Production, T >
struct	lexy::_subgrammar< Production, Handler, State, Reader >
struct	lexyd::_subg< Production, T >::p< NextParser >

Namespaces
	lexy
	lexyd

Macros
#define	LEXY_DECLARE_SUBGRAMMAR(Production)
#define	LEXY_DEFINE_SUBGRAMMAR(Production)
#define	LEXY_INSTANTIATE_SUBGRAMMAR(Production, ...)

Typedefs
template<typename Production , typename Action >
using	lexy::_subgrammar_for = _subgrammar< Production, typename Action::handler, typename Action::state, lexy::input_reader< typename Action::input > >

Variables
template<typename Production , typename T >
constexpr auto	lexyd::subgrammar = _subg<Production, T>{}

Macro Definition Documentation

LEXY_DECLARE_SUBGRAMMAR

#define LEXY_DECLARE_SUBGRAMMAR

(

Production

)

Value:

    namespace lexy                                                                                 \
    {                                                                                              \
        template <typename ParseState>                                                             \
        constexpr auto production_has_value_callback<Production, ParseState> = true;               \
                                                                                                   \
        template <typename Handler, typename State, typename Reader>                               \
        struct _subgrammar<Production, Handler, State, Reader>                                     \
        {                                                                                          \
            template <typename T>                                                                  \
            static bool parse(_detail::lazy_init<T>&                                value,         \
                              _detail::parse_context_control_block<Handler, State>* control_block, \
                              Reader&                                               reader);                                                     \
        };                                                                                         \
    }

Definition at line 20 of file subgrammar.hpp.

LEXY_DEFINE_SUBGRAMMAR

#define LEXY_DEFINE_SUBGRAMMAR

(

Production

)

Value:

    template <typename Handler, typename State, typename Reader>                                   \
    template <typename T>                                                                          \
    bool ::lexy::_subgrammar<Production, Handler, State, Reader>::                                 \
        parse(::lexy::_detail::lazy_init<T>&                                value,                 \
              ::lexy::_detail::parse_context_control_block<Handler, State>* control_block,         \
              Reader&                                                       reader)                \
    {                                                                                              \
        lexy::_pc<Handler, State, Production> context(control_block);                              \
        auto                                  success = ::lexy::_do_action(context, reader);       \
        value                                         = LEXY_MOV(context.value);                   \
        return success;                                                                            \
    }

Definition at line 36 of file subgrammar.hpp.

LEXY_INSTANTIATE_SUBGRAMMAR

#define LEXY_INSTANTIATE_SUBGRAMMAR	(		Production,
			...
	)

Value:

    template bool ::lexy::_subgrammar_for<Production, __VA_ARGS__>                             \
        ::parse<::lexy::_production_value_type<typename __VA_ARGS__::handler,                      \
                                               typename __VA_ARGS__::state, Production>>       \
        (::lexy::_detail::lazy_init<::lexy::_production_value_type<                                \
             typename __VA_ARGS__::handler, typename __VA_ARGS__::state, Production>>&,            \
         ::lexy::_detail::parse_context_control_block<typename __VA_ARGS__::handler,               \
                                                      typename __VA_ARGS__::state>*,               \
         ::lexy::input_reader<typename __VA_ARGS__::input>&);

Definition at line 50 of file subgrammar.hpp.