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package Catmandu::MultiIterator;
use Catmandu::Sane;
our $VERSION = '1.2024';
use Role::Tiny::With;
use namespace::clean;
with 'Catmandu::Iterable';
sub new {
my ($class, @iterators) = @_;
my $self = \@iterators;
bless $self, $class;
}
sub generator {
my ($self) = @_;
sub {
state $generators = [map {$_->generator} @$self];
while (@$generators) {
my $data = $generators->[0]->();
return $data if defined $data;
shift @$generators;
}
return;
};
}
1;
__END__
=pod
=head1 NAME
Catmandu::MultiIterator - chain multiple iterators together
=head1 SYNOPSIS
my $it = Catmandu::MultiIterator->new(
Catmandu::Importer::Mock->new,
Catmandu::Importer::Mock->new,
);
# return all the items of each importer in turn
$it->each(sub {
# ...
});
=head1 METHODS
All L<Catmandu::Iterable> methods are available.
=cut
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