@ Override public < R > LazyImmutable < R > map ( final Function < ? super T , ? extends R > fn ) { final T val = get ( ) ; if ( val == UNSET ) return ( LazyImmutable < R > ) this ; else return LazyImmutable . of ( fn . apply ( val ) ) ; }
Map the value stored in this Immutable Closed Value from one Value to another If this is an unitiatilised ImmutableClosedValue an uninitialised closed value will be returned instead