ROOT::Experimental::Internal::RResultBase Class Reference

Common handling of the error case for RResult<T> (T != void) and RResult<void>

RResultBase captures a possible runtime error that might have occured. If the RResultBase leaves the scope unchecked, it will throw an exception. RResultBase should only be allocated on the stack, which is helped by deleting the new operator. RResultBase is movable but not copyable to avoid throwing multiple exceptions about the same failure.

Definition at line 98 of file RError.hxx.

Public Member Functions
	RResultBase (const RResultBase &other)=delete
	RResultBase (RResultBase &&other)=default
	~RResultBase () noexcept(false)
RError *	GetError ()
void *	operator new (std::size_t size)=delete
void *	operator new (std::size_t, void *)=delete
void *	operator new[] (std::size_t)=delete
void *	operator new[] (std::size_t, void *)=delete
RResultBase &	operator= (const RResultBase &other)=delete
RResultBase &	operator= (RResultBase &&other)=default
void	Throw ()
	Throws an RException with fError.

Static Public Member Functions
static RError	ForwardError (RResultBase &&result, RError::RLocation &&sourceLocation)
	Used by R__FORWARD_ERROR in order to keep track of the stack trace.

Protected Member Functions
	RResultBase ()=default
	RResultBase (RError &&error)
bool	Check ()
	Used by the RResult<T> bool operator.

Protected Attributes
std::unique_ptr< RError >	fError
	This is the nullptr for an RResult representing success.
bool	fIsChecked {false}
	Switches to true once the user of an RResult object checks the object status.

#include <ROOT/RError.hxx>

Inheritance diagram for ROOT::Experimental::Internal::RResultBase:

Constructor & Destructor Documentation

RResultBase() [1/4]

ROOT::Experimental::Internal::RResultBase::RResultBase ( )

protecteddefault

RResultBase() [2/4]

ROOT::Experimental::Internal::RResultBase::RResultBase ( RError &&  error )

inlineexplicitprotected

Definition at line 106 of file RError.hxx.

RResultBase() [3/4]

ROOT::Experimental::Internal::RResultBase::RResultBase ( const RResultBase &  other )

delete

RResultBase() [4/4]

ROOT::Experimental::Internal::RResultBase::RResultBase ( RResultBase &&  other )

default

~RResultBase()

ROOT::Experimental::Internal::RResultBase::~RResultBase

(

)

Definition at line 51 of file RError.cxx.

Member Function Documentation

Check()

bool ROOT::Experimental::Internal::RResultBase::Check ( )

inlineprotected

Used by the RResult<T> bool operator.

Definition at line 109 of file RError.hxx.

ForwardError()

static RError ROOT::Experimental::Internal::RResultBase::ForwardError ( RResultBase &&  result, RError::RLocation &&  sourceLocation  )

inlinestatic

Used by R__FORWARD_ERROR in order to keep track of the stack trace.

Definition at line 127 of file RError.hxx.

GetError()

RError * ROOT::Experimental::Internal::RResultBase::GetError ( )

inline

Definition at line 122 of file RError.hxx.

operator new() [1/2]

void * ROOT::Experimental::Internal::RResultBase::operator new ( std::size_t  size )

delete

operator new() [2/2]

void * ROOT::Experimental::Internal::RResultBase::operator new ( std::size_t  , void *    )

delete

operator new[]() [1/2]

void * ROOT::Experimental::Internal::RResultBase::operator new[] ( std::size_t  )

delete

operator new[]() [2/2]

void * ROOT::Experimental::Internal::RResultBase::operator new[] ( std::size_t  , void *    )

delete

operator=() [1/2]

RResultBase & ROOT::Experimental::Internal::RResultBase::operator= ( const RResultBase &  other )

delete

operator=() [2/2]

RResultBase & ROOT::Experimental::Internal::RResultBase::operator= ( RResultBase &&  other )

default

Throw()

void ROOT::Experimental::Internal::RResultBase::Throw

(

)

Throws an RException with fError.

Definition at line 69 of file RError.cxx.

Member Data Documentation

fError

std::unique_ptr<RError> ROOT::Experimental::Internal::RResultBase::fError

protected

This is the nullptr for an RResult representing success.

Definition at line 101 of file RError.hxx.

fIsChecked

bool ROOT::Experimental::Internal::RResultBase::fIsChecked {false}

protected

Switches to true once the user of an RResult object checks the object status.

Definition at line 103 of file RError.hxx.