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package Test::Harness::Iterator;
use strict;
use vars qw($VERSION);
$VERSION = 0.02;
=head1 NAME
Test::Harness::Iterator - Internal Test::Harness Iterator
=head1 SYNOPSIS
use Test::Harness::Iterator;
my $it = Test::Harness::Iterator->new(\*TEST);
my $it = Test::Harness::Iterator->new(\@array);
my $line = $it->next;
=head1 DESCRIPTION
B<FOR INTERNAL USE ONLY!>
This is a simple iterator wrapper for arrays and filehandles.
=head2 new()
Create an iterator.
=head2 next()
Iterate through it, of course.
=cut
sub new {
my($proto, $thing) = @_;
my $self = {};
if( ref $thing eq 'GLOB' ) {
bless $self, 'Test::Harness::Iterator::FH';
$self->{fh} = $thing;
}
elsif( ref $thing eq 'ARRAY' ) {
bless $self, 'Test::Harness::Iterator::ARRAY';
$self->{idx} = 0;
$self->{array} = $thing;
}
else {
warn "Can't iterate with a ", ref $thing;
}
return $self;
}
package Test::Harness::Iterator::FH;
sub next {
my $fh = $_[0]->{fh};
# readline() doesn't work so good on 5.5.4.
return scalar <$fh>;
}
package Test::Harness::Iterator::ARRAY;
sub next {
my $self = shift;
return $self->{array}->[$self->{idx}++];
}
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