#include <hal_core/utilities/result.h>

Collaboration diagram for hal::Result< T >:

Public Member Functions
template<typename... Args, typename U = T, typename std::enable_if_t< std::is_same_v< U, void >, int > = 0>
	Result (result_constructor_type::OK)

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
	Result (result_constructor_type::OK, const T &value)

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
	Result (result_constructor_type::OK, std::remove_reference_t< T > &&value)

	Result (result_constructor_type::ER, const Error &error)

bool	operator== (const Result< T > &other)

bool	operator!= (const Result< T > &other)

bool	is_ok () const

bool	is_error () const

template<typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
const T &	get () const

template<typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
T &&	get ()

const Error &	get_error () const

Error &&	get_error ()

template<typename U , typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
Result< U >	map (const std::function< Result< U >(const T &)> &f) const

template<typename U , typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
Result< U >	map (const std::function< Result< U >(T &&)> &f)

Static Public Member Functions
template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
static Result< T >	Ok (const T &value)

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>
static Result< T >	Ok (std::remove_reference_t< T > &&value)

Detailed Description

template<typename T>
class hal::Result< T >

Definition at line 70 of file result.h.

Constructor & Destructor Documentation

◆ Result() [1/4]

template<typename T >

template<typename... Args, typename U = T, typename std::enable_if_t< std::is_same_v< U, void >, int > = 0>

hal::Result< T >::Result ( result_constructor_type::OK )

inline

Definition at line 77 of file result.h.

◆ Result() [2/4]

template<typename T >

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

hal::Result< T >::Result	(	result_constructor_type::OK	,
		const T &	value
	)

inline

Definition at line 82 of file result.h.

◆ Result() [3/4]

template<typename T >

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

hal::Result< T >::Result	(	result_constructor_type::OK	,
		std::remove_reference_t< T > &&	value
	)

inline

Definition at line 87 of file result.h.

◆ Result() [4/4]

template<typename T >

hal::Result< T >::Result	(	result_constructor_type::ER	,
		const Error &	error
	)

inline

Definition at line 91 of file result.h.

References hal::error.

Member Function Documentation

◆ get() [1/2]

template<typename T >

template<typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

T&& hal::Result< T >::get ( )

inline

Get the value of the result. It is up to the user to check whether the result is valid using Result::is_ok() beforehand.

Template Parameters

U	- The type of the result value.

Returns: The result value.

Definition at line 179 of file result.h.

References hal::T.

◆ get() [2/2]

template<typename T >

template<typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

const T& hal::Result< T >::get ( ) const

inline

Get the value of the result. It is up to the user to check whether the result is valid using Result::is_ok() beforehand.

Template Parameters

U	- The type of the result value.

Returns: The result value.

Definition at line 166 of file result.h.

References hal::T.

◆ get_error() [1/2]

template<typename T >

Error&& hal::Result< T >::get_error ( )

inline

Get the error of the result. It is up to the user to check whether the result is an error using Result::is_error() beforehand.

Returns: The error.

Definition at line 201 of file result.h.

◆ get_error() [2/2]

template<typename T >

const Error& hal::Result< T >::get_error ( ) const

inline

Get the error of the result. It is up to the user to check whether the result is an error using Result::is_error() beforehand.

Returns: The error.

Definition at line 190 of file result.h.

◆ is_error()

template<typename T >

bool hal::Result< T >::is_error ( ) const

inline

Check whether the result is an error.

Returns: true if the result is an error, false otherwise.

Definition at line 153 of file result.h.

◆ is_ok()

template<typename T >

bool hal::Result< T >::is_ok ( ) const

inline

Check whether the result is valid, i.e., not an error.

Returns: true if the result is valid, false otherwise.

Definition at line 143 of file result.h.

◆ map() [1/2]

template<typename T >

template<typename U , typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

Result<U> hal::Result< T >::map ( const std::function< Result< U >(const T &)> & f ) const

inline

Map the result to a different user-defined data type using the provided mapping function.

Template Parameters

U	- The target data type.

Parameters

[in] f - The mapping function.

Returns: The result mapped to the target data type.

Definition at line 214 of file result.h.

References ERR.

◆ map() [2/2]

template<typename T >

template<typename U , typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

Result<U> hal::Result< T >::map ( const std::function< Result< U >(T &&)> & f )

inline

Map the result to a different user-defined data type using the provided mapping function.

Template Parameters

U	- The target data type.

Parameters

[in] f - The mapping function.

Returns: The result mapped to the target data type.

Definition at line 234 of file result.h.

References ERR.

◆ Ok() [1/2]

template<typename T >

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

static Result<T> hal::Result< T >::Ok ( const T & value )

inlinestatic

Construct a valid result carrying a result value.

Parameters

[in] value - The result value.

Returns: The result.

Definition at line 102 of file result.h.

References OK.

◆ Ok() [2/2]

template<typename T >

template<typename... Args, typename U = T, typename std::enable_if_t<!std::is_same_v< U, void >, int > = 0>

static Result<T> hal::Result< T >::Ok ( std::remove_reference_t< T > && value )

inlinestatic

Construct a valid result carrying a result value.

Parameters

[in] value - The result value.

Returns: The result.

Definition at line 111 of file result.h.

References OK.

◆ operator!=()

template<typename T >

bool hal::Result< T >::operator!= ( const Result< T > & other )

inline

Check whether two results are unequal.

Parameters

[in] other - The result to compare against.

Returns: true if both results are unequal, false otherwise.

Definition at line 133 of file result.h.

◆ operator==()

template<typename T >

bool hal::Result< T >::operator== ( const Result< T > & other )

inline

Check whether two results are equal.

Parameters

[in] other - The result to compare against.

Returns: true if both results are equal, false otherwise.

Definition at line 122 of file result.h.

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

include/hal_core/utilities/result.h

Public Member Functions

Static Public Member Functions

Detailed Description

template<typename T> class hal::Result< T >

Constructor & Destructor Documentation

◆ Result() [1/4]

◆ Result() [2/4]

◆ Result() [3/4]

◆ Result() [4/4]

Member Function Documentation

◆ get() [1/2]

◆ get() [2/2]

◆ get_error() [1/2]

◆ get_error() [2/2]

◆ is_error()

◆ is_ok()

◆ map() [1/2]

◆ map() [2/2]

◆ Ok() [1/2]

◆ Ok() [2/2]

◆ operator!=()

◆ operator==()

template<typename T>
class hal::Result< T >