Generalized interface for container variants. More...

#include <variant_value.hpp>

Inheritance diagram for wfl::variant_container< Container >:

Public Member Functions
	variant_container (const Container &c)

	variant_container (Container &&c)

const Container &	get_container () const

virtual bool	is_empty () const override
	Whether the stored value is considered empty or not. More...

virtual std::size_t	num_elements () const override
	Returns the number of elements in a type. More...

virtual bool	as_bool () const override
	Returns a bool expression of the variant value. More...

virtual std::string	string_cast () const override
	Returns the stored variant value in plain string form. More...

virtual std::string	get_serialized_string () const override
	Returns the stored variant value in formula syntax. More...

virtual std::string	get_debug_string (formula_seen_stack &seen, bool verbose) const override
	Returns debug info for the variant value. More...

virtual boost::iterator_range< variant_iterator >	make_iterator () const override
	Creates an iterator pair that can be used for iteration. More...

virtual void	iterator_inc (utils::any &) const override
	Implements the increment functionality of variant_iterator for a value of this type. More...

virtual void	iterator_dec (utils::any &) const override
	Implements the decrement functionality of variant_iterator for a value of this type. More...

virtual bool	iterator_equals (const utils::any &first, const utils::any &second) const override
	Implements the equality functionality of variant_iterator for a value of this type. More...

virtual bool	equals (const variant_value_base &other) const override
	Inherited from variant_value_base. More...

virtual bool	less_than (const variant_value_base &other) const override
	Inherited from variant_value_base. More...

Public Member Functions inherited from wfl::variant_value_base
virtual formula_variant::type	get_type () const
	Returns the id of the variant type. More...

virtual variant	deref_iterator (const utils::any &iter) const
	Implements the dereference functionality of variant_iterator for a value of this type. More...

virtual	~variant_value_base ()

Protected Types
using	iterator = typename Container::iterator

using	const_iterator = typename Container::const_iterator

Static Protected Member Functions
static const_iterator &	as_container_iterator (utils::any &iter)
	Casts opaque iter to a mutable const_iterator reference. More...

static const const_iterator &	as_container_iterator (const utils::any &iter)
	Casts opaque iter to a constant const_iterator reference. More...

Private Attributes
Container	container_

Additional Inherited Members
Static Public Attributes inherited from wfl::variant_value_base
static constexpr auto	value_type = formula_variant::type::null
	Each 'final' derived class should define a static type flag. More...

Detailed Description

template<typename Container>
class wfl::variant_container< Container >

Generalized interface for container variants.

Definition at line 387 of file variant_value.hpp.

Member Typedef Documentation

◆ const_iterator

template<typename Container >

using wfl::variant_container< Container >::const_iterator = typename Container::const_iterator

protected

Definition at line 446 of file variant_value.hpp.

◆ iterator

template<typename Container >

using wfl::variant_container< Container >::iterator = typename Container::iterator

protected

Definition at line 445 of file variant_value.hpp.

Constructor & Destructor Documentation

◆ variant_container() [1/2]

template<typename Container >

wfl::variant_container< Container >::variant_container ( const Container & c )

inlineexplicit

Definition at line 390 of file variant_value.hpp.

◆ variant_container() [2/2]

template<typename Container >

wfl::variant_container< Container >::variant_container ( Container && c )

inlineexplicit

Definition at line 395 of file variant_value.hpp.

Member Function Documentation

◆ as_bool()

template<typename Container >

virtual bool wfl::variant_container< Container >::as_bool ( ) const

inlineoverridevirtual

Returns a bool expression of the variant value.

Reimplemented from wfl::variant_value_base.

Definition at line 415 of file variant_value.hpp.

References wfl::variant_container< Container >::is_empty().

◆ as_container_iterator() [1/2]

template<typename Container >

static const const_iterator& wfl::variant_container< Container >::as_container_iterator ( const utils::any & iter )

inlinestaticprotected

Casts opaque iter to a constant const_iterator reference.

Definition at line 455 of file variant_value.hpp.

◆ as_container_iterator() [2/2]

template<typename Container >

static const_iterator& wfl::variant_container< Container >::as_container_iterator ( utils::any & iter )

inlinestaticprotected

Casts opaque iter to a mutable const_iterator reference.

Definition at line 449 of file variant_value.hpp.

◆ equals()

template<typename Container >

virtual bool wfl::variant_container< Container >::equals ( const variant_value_base & other ) const

inlineoverridevirtual

Inherited from variant_value_base.

Reimplemented from wfl::variant_value_base.

Definition at line 433 of file variant_value.hpp.

References utils::cast_as(), and wfl::variant_container< Container >::container_.

◆ get_container()

template<typename Container >

const Container& wfl::variant_container< Container >::get_container ( ) const

inline

Definition at line 400 of file variant_value.hpp.

References wfl::variant_container< Container >::container_.

◆ get_debug_string()

template<typename T >

std::string wfl::variant_container< T >::get_debug_string	(	formula_seen_stack &	,
		bool
	)		const

overridevirtual

Returns debug info for the variant value.

Reimplemented from wfl::variant_value_base.

Definition at line 305 of file variant_value.cpp.

References wfl::implementation::as_literal(), and wfl::variant::to_debug_string().

◆ get_serialized_string()

template<typename T >

std::string wfl::variant_container< T >::get_serialized_string

overridevirtual

Returns the stored variant value in formula syntax.

Reimplemented from wfl::variant_value_base.

Definition at line 299 of file variant_value.cpp.

References wfl::implementation::as_literal(), and wfl::variant::serialize_to_string().

◆ is_empty()

template<typename Container >

virtual bool wfl::variant_container< Container >::is_empty ( ) const

inlineoverridevirtual

Whether the stored value is considered empty or not.

Reimplemented from wfl::variant_value_base.

Definition at line 405 of file variant_value.hpp.

References wfl::variant_container< Container >::container_.

Referenced by wfl::variant_container< Container >::as_bool().

◆ iterator_dec()

template<typename T >

void wfl::variant_container< T >::iterator_dec ( utils::any & ) const

overridevirtual

Implements the decrement functionality of variant_iterator for a value of this type.

The parameter is an opaque reference that was passed to the variant_iterator by make_iterator.

Reimplemented from wfl::variant_value_base.

Definition at line 324 of file variant_value.cpp.

◆ iterator_equals()

template<typename T >

bool wfl::variant_container< T >::iterator_equals	(	const utils::any &	,
		const utils::any &
	)		const

overridevirtual

Implements the equality functionality of variant_iterator for a value of this type.

Note that this is only called if the two iterators are already known to be of the same type.

The first parameter is an opaque reference that was passed to the variant_iterator by make_iterator. The second parameter is an opaque reference that was passed to the variant_iterator by make_iterator.

Reimplemented from wfl::variant_value_base.

Definition at line 330 of file variant_value.cpp.