Transforms all elements from type T to type S. More...

#include <enumerator.h>

Inheritance diagram for P4::Util::MapEnumerator< T, S, Mapper >:

Public Member Functions
	MapEnumerator (Enumerator< T > *input, Mapper map)

S	getCurrent () const
	Get current element in the collection.

bool	moveNext ()

void	reset ()
	Move back to the beginning of the collection.

std::string	toString () const

Public Member Functions inherited from P4::Util::Enumerator< S >
bool	any ()
	True if the enumerator has at least one element.

Enumerator< S > *	as ()
	Cast to an enumerator of S objects.

EnumeratorHandle< S >	begin ()

virtual Enumerator< S > *	concat (Enumerator< S > *other)
	Append all elements of other after all elements of this.

uint64_t	count ()
	Enumerate all elements and return the count.

EnumeratorHandle< S >	end ()

Enumerator< std::invoke_result_t< Mapper, S > > *	map (Mapper map)
	Apply specified function to all elements of this enumerator.

S	next ()
	Next element; throws if there are no elements.

S	nextOrDefault ()
	Next element, or the default value if none exists.

S	single ()
	The only next element; throws if the enumerator does not have exactly 1 element.

S	singleOrDefault ()

const char *	stateName () const

std::vector< S >	toVector ()

Enumerator< S > *	where (Filter filter)
	Return an enumerator returning all elements that pass the filter.

Protected Attributes
S	current

Enumerator< T > *	input

Mapper	map

Protected Attributes inherited from P4::Util::Enumerator< S >
EnumeratorState	state

Additional Inherited Members
Public Types inherited from P4::Util::Enumerator< S >
using	value_type

Static Public Member Functions inherited from P4::Util::Enumerator< S >
static Enumerator< S > *	concatAll (Enumerator< Enumerator< S > * > *inputs)
	Concatenate all these collections into a single one.

static Enumerator< typename Container::value_type > *	createEnumerator (const Container &data)

static Enumerator< typename Iter::value_type > *	createEnumerator (Iter begin, Iter end)

static Enumerator< typename Iter::value_type > *	createEnumerator (iterator_range< Iter > range)

static Enumerator< S > *	emptyEnumerator ()

Static Protected Attributes inherited from P4::Util::Enumerator< S >
static std::vector< S >	emptyVector

Detailed Description

template<typename T, typename S, typename Mapper>
class P4::Util::MapEnumerator< T, S, Mapper >

Transforms all elements from type T to type S.

Member Function Documentation

template<typename T , typename S , typename Mapper >

S P4::Util::MapEnumerator< T, S, Mapper >::getCurrent ( ) const

inlinevirtual

Get current element in the collection.

template<typename T , typename S , typename Mapper >

bool P4::Util::MapEnumerator< T, S, Mapper >::moveNext ( )

inlinevirtual

Move to next element in the collection; return false if the next element does not exist

template<typename T , typename S , typename Mapper >

void P4::Util::MapEnumerator< T, S, Mapper >::reset ( )

inlinevirtual

Move back to the beginning of the collection.