Variant for storing WML attributes. More...

#include <config_attribute_value.hpp>

Classes
class	equality_visitor
	Visitor handling equality checks. More...

class	string_visitor
	Visitor for converting a variant to a string. More...

class	true_false
	A wrapper for bool to get the correct streaming ("true"/"false"). More...

class	yes_no
	A wrapper for bool to get the correct streaming ("yes"/"no"). More...

Public Member Functions
	config_attribute_value ()
	Default implementation, but defined out-of-line for efficiency reasons. More...

	~config_attribute_value ()
	Default implementation, but defined out-of-line for efficiency reasons. More...

	config_attribute_value (const config_attribute_value &)
	Default implementation, but defined out-of-line for efficiency reasons. More...

config_attribute_value &	operator= (const config_attribute_value &)
	Default implementation, but defined out-of-line for efficiency reasons. More...

config_attribute_value &	operator= (bool v)

config_attribute_value &	operator= (int v)

config_attribute_value &	operator= (long v)

config_attribute_value &	operator= (long long v)

config_attribute_value &	operator= (unsigned v)

config_attribute_value &	operator= (unsigned long v)

config_attribute_value &	operator= (unsigned long long v)

config_attribute_value &	operator= (double v)

config_attribute_value &	operator= (const char *v)

config_attribute_value &	operator= (const std::string &v)

config_attribute_value &	operator= (const std::string_view &v)

config_attribute_value &	operator= (const t_string &v)

void	write_if_not_empty (const std::string &v)
	Calls operator=(const std::string&) if v is not empty. More...

void	write_if_not_empty (const t_string &v)

bool	to_bool (bool def=false) const

int	to_int (int def=0) const

long long	to_long_long (long long def=0) const

unsigned	to_unsigned (unsigned def=0) const

std::size_t	to_size_t (std::size_t def=0) const

std::time_t	to_time_t (std::time_t def=0) const

double	to_double (double def=0.) const

std::string	str (const std::string &fallback="") const

t_string	t_str () const

	operator int () const

	operator std::string () const

	operator t_string () const

	operator bool () const

bool	blank () const
	Tests for an attribute that was never set. More...

bool	empty () const
	Tests for an attribute that either was never set or was set to "". More...

bool	operator== (const config_attribute_value &other) const
	Checks for equality of the attribute values when viewed as strings. More...

bool	operator!= (const config_attribute_value &other) const

bool	equals (const std::string &str) const
	Checks for equality of the attribute values when viewed as strings. More...

template<typename T >
std::enable_if_t< std::is_same_v< const std::string, std::add_const_t< T > >, bool > friend	operator== (const config_attribute_value &val, const T &str)

template<typename T >
std::enable_if_t< std::is_same_v< const char *, T >, bool > friend	operator== (const config_attribute_value &val, T str)

template<typename T >
bool friend	operator== (const T &str, const config_attribute_value &val)

template<typename T >
bool friend	operator!= (const config_attribute_value &val, const T &str)

template<typename T >
bool friend	operator!= (const T &str, const config_attribute_value &val)

template<typename V >
auto	apply_visitor (const V &visitor) const
	Visitor support: Applies a visitor to the underlying variant. More...

Private Types
typedef utils::variant< utils::monostate, true_false, yes_no, int, unsigned long long, double, std::string, t_string >	value_type

Private Attributes
value_type	value_
	The stored value will always use the first type from the variant definition that can represent it and that can be streamed to the correct string representation (if applicable). More...

Static Private Attributes
static const std::string	s_yes

static const std::string	s_no

static const std::string	s_true

static const std::string	s_false

Friends
std::ostream &	operator<< (std::ostream &os, const true_false &v)

std::ostream &	operator<< (std::ostream &os, const yes_no &v)

std::ostream &	operator<< (std::ostream &os, const config_attribute_value &v)

Detailed Description

Variant for storing WML attributes.

The most efficient type is used when assigning a value. For instance, strings "yes", "no", "true", "false" will be detected and stored as boolean.

Note: The blank variant is only used when querying missing attributes. It is not stored in config objects.

Definition at line 48 of file config_attribute_value.hpp.

Member Typedef Documentation

◆ value_type

typedef utils::variant<utils::monostate, true_false, yes_no, int, unsigned long long, double, std::string, t_string > config_attribute_value::value_type

private

Definition at line 103 of file config_attribute_value.hpp.

Constructor & Destructor Documentation

◆ config_attribute_value() [1/2]

config_attribute_value::config_attribute_value ( )

Default implementation, but defined out-of-line for efficiency reasons.

Definition at line 41 of file config_attribute_value.cpp.

◆ ~config_attribute_value()

config_attribute_value::~config_attribute_value ( )

Default implementation, but defined out-of-line for efficiency reasons.

Definition at line 47 of file config_attribute_value.cpp.

◆ config_attribute_value() [2/2]

config_attribute_value::config_attribute_value ( const config_attribute_value & that )

Default implementation, but defined out-of-line for efficiency reasons.

Definition at line 52 of file config_attribute_value.cpp.

Member Function Documentation

◆ apply_visitor()

template<typename V >

auto config_attribute_value::apply_visitor ( const V & visitor ) const

inline

Visitor support: Applies a visitor to the underlying variant.

(See the documentation for Boost.Variant.)

Definition at line 217 of file config_attribute_value.hpp.

References value_.

Referenced by unit_filter_impl::unit_filter_compound::create_attribute(), vconfig::expand(), luaW_pushscalar(), schema_validation::wml_type_simple::matches(), schema_validation::wml_type_tstring::matches(), str(), to_double(), to_int(), to_long_long(), to_size_t(), to_time_t(), to_unsigned(), and write_key_val().

◆ blank()

bool config_attribute_value::blank ( ) const

Tests for an attribute that was never set.

Definition at line 357 of file config_attribute_value.cpp.

References value_.

Referenced by name_generator_factory::add_name_generator_from_config(), unit_filter_impl::unit_filter_compound::create_attribute(), empty(), config::get_or(), team::get_village(), team_builder::handle_leader(), unit_type::has_random_traits(), config::inherit_attributes(), side_filter::match_internal(), and game_events::WML_HANDLER_FUNCTION().

◆ empty()

bool config_attribute_value::empty ( ) const

Tests for an attribute that either was never set or was set to "".

Definition at line 365 of file config_attribute_value.cpp.

References blank(), p, and value_.

Referenced by add_simple_anim(), ng::connect_engine::connect_engine(), do_interpolation(), unit_abilities::filter_base_matches(), help::generate_era_topics(), help::generate_faction_topics(), savegame::save_index_class::get(), game_lua_kernel::get_sides_vector(), campaignd::server::handle_delete(), game_lua_kernel::impl_current_get(), hotkey::load_from_config(), terrain_filter::match_internal(), terrain_label::read(), saved_game::set_defaults(), carryover_info::transfer_to(), game_events::wml_menu_item::update_command(), verify_and_clear_global_variable(), verify_and_get_global_variable(), verify_and_set_global_variable(), and game_events::WML_HANDLER_FUNCTION().

◆ equals()

bool config_attribute_value::equals ( const std::string & str ) const

Checks for equality of the attribute values when viewed as strings.

Exception: Boolean synonyms can be equal ("yes" == "true"). Note: Blanks have no string representation, so do not equal "" (an empty string). Also note that translatable string are never equal to non translatable strings.

Definition at line 427 of file config_attribute_value.cpp.

References str().

Referenced by operator==().

◆ operator bool()

config_attribute_value::operator bool ( ) const

inlineexplicit

Definition at line 158 of file config_attribute_value.hpp.

References to_bool().

◆ operator int()

config_attribute_value::operator int ( ) const

inline

Definition at line 154 of file config_attribute_value.hpp.

References to_int().

◆ operator std::string()

config_attribute_value::operator std::string ( ) const

inline

Definition at line 155 of file config_attribute_value.hpp.

References str().

◆ operator t_string()

config_attribute_value::operator t_string ( ) const

inline

Definition at line 156 of file config_attribute_value.hpp.

References t_str().

◆ operator!=() [1/3]

bool config_attribute_value::operator!= ( const config_attribute_value & other ) const

inline

Definition at line 168 of file config_attribute_value.hpp.

References operator==().

◆ operator!=() [2/3]

template<typename T >

bool friend config_attribute_value::operator!=	(	const config_attribute_value &	val,
		const T &	str
	)

inline

Definition at line 197 of file config_attribute_value.hpp.

References str().

◆ operator!=() [3/3]

template<typename T >

bool friend config_attribute_value::operator!=	(	const T &	str,
		const config_attribute_value &	val
	)

inline

Definition at line 203 of file config_attribute_value.hpp.

References str().

◆ operator=() [1/13]

config_attribute_value & config_attribute_value::operator= ( bool v )

Definition at line 64 of file config_attribute_value.cpp.

References value_.

◆ operator=() [2/13]

config_attribute_value& config_attribute_value::operator= ( const char * v )

inline

Definition at line 133 of file config_attribute_value.hpp.

References operator=().

Referenced by operator=().

◆ operator=() [3/13]

config_attribute_value & config_attribute_value::operator= ( const config_attribute_value & that )

Default implementation, but defined out-of-line for efficiency reasons.

Definition at line 58 of file config_attribute_value.cpp.

References value_.

Referenced by operator=().

◆ operator=() [4/13]

config_attribute_value & config_attribute_value::operator= ( const std::string & v )

Definition at line 156 of file config_attribute_value.cpp.

References d, i, s_false, s_no, s_true, s_yes, and value_.

◆ operator=() [5/13]

config_attribute_value & config_attribute_value::operator= ( const std::string_view & v )

Definition at line 221 of file config_attribute_value.cpp.

References operator=().

◆ operator=() [6/13]

config_attribute_value & config_attribute_value::operator= ( const t_string & v )

Definition at line 228 of file config_attribute_value.cpp.

References t_string::str(), t_string::translatable(), and value_.

◆ operator=() [7/13]

config_attribute_value & config_attribute_value::operator= ( double v )

Definition at line 108 of file config_attribute_value.cpp.

References i, and value_.

◆ operator=() [8/13]

config_attribute_value & config_attribute_value::operator= ( int v )

Definition at line 70 of file config_attribute_value.cpp.

References value_.

◆ operator=() [9/13]

config_attribute_value & config_attribute_value::operator= ( long long v )

Definition at line 76 of file config_attribute_value.cpp.

References value_.

◆ operator=() [10/13]

config_attribute_value& config_attribute_value::operator= ( long v )

inline

Definition at line 125 of file config_attribute_value.hpp.

References operator=().

Referenced by operator=().

◆ operator=() [11/13]

config_attribute_value & config_attribute_value::operator= ( unsigned long long v )

Definition at line 97 of file config_attribute_value.cpp.

References value_.

◆ operator=() [12/13]

config_attribute_value& config_attribute_value::operator= ( unsigned long v )

inline

Definition at line 128 of file config_attribute_value.hpp.

References operator=().

Referenced by operator=().

◆ operator=() [13/13]

config_attribute_value& config_attribute_value::operator= ( unsigned v )

inline

Definition at line 127 of file config_attribute_value.hpp.

References operator=().

Referenced by operator=().

◆ operator==() [1/4]

bool config_attribute_value::operator== ( const config_attribute_value & other ) const

Checks for equality of the attribute values when viewed as strings.

Exception: Boolean synonyms can be equal ("yes" == "true"). Note: Blanks have no string representation, so do not equal "" (an empty string).

Definition at line 416 of file config_attribute_value.cpp.

References value_.

Referenced by operator!=().

◆ operator==() [2/4]

template<typename T >

std::enable_if_t<std::is_same_v<const std::string, std::add_const_t<T> >, bool> friend config_attribute_value::operator==	(	const config_attribute_value &	val,
		const T &	str
	)

inline

Definition at line 178 of file config_attribute_value.hpp.

References equals(), and str().

◆ operator==() [3/4]

template<typename T >

std::enable_if_t<std::is_same_v<const char*, T>, bool> friend config_attribute_value::operator==	(	const config_attribute_value &	val,
		T	str
	)

inline

Definition at line 185 of file config_attribute_value.hpp.

References equals(), and str().

◆ operator==() [4/4]

template<typename T >

bool friend config_attribute_value::operator==	(	const T &	str,
		const config_attribute_value &	val
	)

inline

Definition at line 191 of file config_attribute_value.hpp.

References str().

◆ str()

std::string config_attribute_value::str ( const std::string & fallback = "" ) const

Definition at line 340 of file config_attribute_value.cpp.

References apply_visitor().

Referenced by ng::connect_engine::connect_engine(), unit_filter_impl::unit_filter_compound::create_attribute(), gui2::dialogs::mp_options_helper::display_custom_options(), equals(), synced_context::generate_random_seed(), game_lua_kernel::get_sides_vector(), unit_type::has_random_traits(), luaW_toconfig(), config::matches(), schema_validation::wml_type_simple::matches(), schema_validation::wml_type_list::matches(), randomness::mt_rng::mt_rng(), operator std::string(), operator!=(), operator==(), tod_manager::resolve_random(), utils::split(), t_str(), game_events::wml_menu_item::update(), schema_validation::schema_self_validator::validate_key(), verify_and_clear_global_variable(), verify_and_get_global_variable(), and verify_and_set_global_variable().

◆ t_str()

t_string config_attribute_value::t_str ( ) const

Definition at line 345 of file config_attribute_value.cpp.

References p, str(), and value_.

Referenced by ng::connect_engine::connect_engine(), help::generate_era_topics(), help::generate_faction_topics(), unit::init(), and operator t_string().

◆ to_bool()

bool config_attribute_value::to_bool ( bool def = false ) const

Definition at line 252 of file config_attribute_value.cpp.

References p, and value_.

Referenced by gui2::dialogs::mp_options_helper::display_custom_options(), operator bool(), tod_manager::resolve_random(), and game_events::wml_menu_item::update().

◆ to_double()

double config_attribute_value::to_double ( double def = 0. ) const

Definition at line 314 of file config_attribute_value.cpp.

References apply_visitor().

◆ to_int()

int config_attribute_value::to_int ( int def = 0 ) const

Definition at line 289 of file config_attribute_value.cpp.

References apply_visitor().

Referenced by gui2::dialogs::mp_options_helper::display_custom_options(), unit_abilities::filter_base_matches(), get_global_variable(), hotkey::load_from_config(), terrain_filter::match_internal(), movetype::resistances::merge(), movetype::terrain_info::data::merge(), operator int(), terrain_label::read(), verify_and_clear_global_variable(), verify_and_get_global_variable(), and game_events::WML_HANDLER_FUNCTION().

◆ to_long_long()

long long config_attribute_value::to_long_long ( long long def = 0 ) const

Definition at line 294 of file config_attribute_value.cpp.

References apply_visitor().

◆ to_size_t()

std::size_t config_attribute_value::to_size_t ( std::size_t def = 0 ) const

Definition at line 304 of file config_attribute_value.cpp.

References apply_visitor().

◆ to_time_t()

std::time_t config_attribute_value::to_time_t ( std::time_t def = 0 ) const

Definition at line 309 of file config_attribute_value.cpp.

References apply_visitor().

Referenced by savegame::save_index_class::get().

◆ to_unsigned()

unsigned config_attribute_value::to_unsigned ( unsigned def = 0 ) const

Definition at line 299 of file config_attribute_value.cpp.

References apply_visitor().

◆ write_if_not_empty() [1/2]

void config_attribute_value::write_if_not_empty ( const std::string & v )

Calls operator=(const std::string&) if v is not empty.

Definition at line 238 of file config_attribute_value.cpp.

◆ write_if_not_empty() [2/2]

void config_attribute_value::write_if_not_empty ( const t_string & v )

Definition at line 245 of file config_attribute_value.cpp.

References t_string::empty().

Friends And Related Function Documentation

◆ operator<< [1/3]

std::ostream& operator<<	(	std::ostream &	os,
		const config_attribute_value &	v
	)

friend

Definition at line 438 of file config_attribute_value.cpp.

◆ operator<< [2/3]

std::ostream& operator<<	(	std::ostream &	os,
		const true_false &	v
	)

friend

Definition at line 67 of file config_attribute_value.hpp.

◆ operator<< [3/3]

std::ostream& operator<<	(	std::ostream &	os,
		const yes_no &	v
	)

friend

Definition at line 85 of file config_attribute_value.hpp.

Member Data Documentation

◆ s_false

const std::string config_attribute_value::s_false

staticprivate

Definition at line 225 of file config_attribute_value.hpp.

Referenced by operator=(), and config_attribute_value::true_false::str().

◆ s_no

const std::string config_attribute_value::s_no

staticprivate

Definition at line 224 of file config_attribute_value.hpp.

Referenced by operator=(), and config_attribute_value::yes_no::str().

◆ s_true

const std::string config_attribute_value::s_true

staticprivate

Definition at line 225 of file config_attribute_value.hpp.

Referenced by operator=(), and config_attribute_value::true_false::str().

◆ s_yes

const std::string config_attribute_value::s_yes

staticprivate

Definition at line 224 of file config_attribute_value.hpp.

Referenced by operator=(), and config_attribute_value::yes_no::str().

◆ value_

value_type config_attribute_value::value_

private

The stored value will always use the first type from the variant definition that can represent it and that can be streamed to the correct string representation (if applicable).

This is enforced upon assignment.

Definition at line 110 of file config_attribute_value.hpp.

Referenced by apply_visitor(), blank(), empty(), operator=(), operator==(), t_str(), and to_bool().

The documentation for this class was generated from the following files:

Classes

Public Member Functions

Private Types

Private Attributes

Static Private Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ value_type

Constructor & Destructor Documentation

◆ config_attribute_value() [1/2]

◆ ~config_attribute_value()

◆ config_attribute_value() [2/2]

Member Function Documentation

◆ apply_visitor()

◆ blank()

◆ empty()

◆ equals()

◆ operator bool()

◆ operator int()

◆ operator std::string()

◆ operator t_string()

◆ operator!=() [1/3]

◆ operator!=() [2/3]

◆ operator!=() [3/3]

◆ operator=() [1/13]

◆ operator=() [2/13]

◆ operator=() [3/13]

◆ operator=() [4/13]

◆ operator=() [5/13]

◆ operator=() [6/13]

◆ operator=() [7/13]

◆ operator=() [8/13]

◆ operator=() [9/13]

◆ operator=() [10/13]

◆ operator=() [11/13]

◆ operator=() [12/13]

◆ operator=() [13/13]

◆ operator==() [1/4]

◆ operator==() [2/4]

◆ operator==() [3/4]

◆ operator==() [4/4]

◆ str()

◆ t_str()

◆ to_bool()

◆ to_double()

◆ to_int()

◆ to_long_long()

◆ to_size_t()

◆ to_time_t()

◆ to_unsigned()

◆ write_if_not_empty() [1/2]

◆ write_if_not_empty() [2/2]

Friends And Related Function Documentation

◆ operator<< [1/3]

◆ operator<< [2/3]

◆ operator<< [3/3]

Member Data Documentation

◆ s_false

◆ s_no

◆ s_true

◆ s_yes

◆ value_