I want to derive a new class from IO::Dir. The only difference should be that the new class overrides the read method with a new one which only returns .pl files. To keep things as simple as possible, Version 0 of the new method does nothing but return undef. The following code always returns the message:
Can't find method "new" via package "IO::Dir::pl"...
use strict;
use warnings;
use Autodie;
use IO::Dir;
my $dh = IO::Dir::pl->new('.');
while (my $file_name = $dh->read_pl()){
print STDOUT "$file_name\n";
}
package IO::Dir::pl;
use vars '@ISA';
@ISA = ('IO::Dir');
sub read{
my $self = shift;
warn "Ok We got here.\n";
return undef;
}
The @ISA array does not appear to work as expected.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|