1 package HTML::Zoom::MappedStream;
4 use warnings FATAL => 'all';
5 use base qw(HTML::Zoom::StreamBase);
8 my ($class, $args) = @_;
10 _source => $args->{source}, _mapper => $args->{mapper},
11 _zconfig => $args->{zconfig}
16 return unless (my $self = shift)->{_source};
17 # If we were aiming for a "true" perl-like map then we should
18 # elegantly handle the case where the map function returns 0 events
19 # and the case where it returns >1 - if you're reading this comment
20 # because you wanted it to do that, now would be the time to fix it :)
21 if (my ($next) = $self->{_source}->next) {
23 return $self->{_mapper}->($next);
25 delete $self->{_source};