Much fun was spent today tracking down a mysterious bug. I even had fun shoving a coderef into @INC to find out what was loading the errant module. I've now reproduced a minimal test case. Once I put it together, the bug was clear, but before that, there were many red herrings. Here's a minimal test case.

package Package1;

use base 'Exporter';

our @EXPORT_OK = qw/this that/;
our %EXPORT_TAGS = ( all => [qw/this that/], );

sub this { 'this' }

sub that { 'that' }

1;

[download]

And another package:

package Package2;

use base 'Exporter';

use Package1 ':all';

our @EXPORT_OK = ( @Package1::EXPORT_OK, 'foobar' );
our %EXPORT_TAGS = %Package1::EXPORT_TAGS;
push @{ $EXPORT_TAGS{all} } => 'foobar';

sub foobar { 'foobar' }

1;

[download]

Do you see the bug? That was very, very annoying, but fortunately the fix is easy. If you see the bug, post it as a spoiler.

Cheers,
Ovid

New address of my CGI Course.

In reply to Another "Find the bug!" Node by Ovid

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.