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Ovid (2709)

Ovid
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Stuff with the Perl Foundation. A couple of patches in the Perl core. A few CPAN modules. That about sums it up.

Journal of Ovid (2709)

Wednesday December 19, 2007
11:34 AM

UNIVERSAL::can't

[ #35151 ]

We have a new module in our repository. Here's the complete source code (minus the docs):

package UNIVERSAL::can;
1;

This is due to the following bug:

$ perl  -MUNIVERSAL::can -w -e 'use Template::Timer'
Died at /home/poec01/branches/envscript/deps/perl5lib//Template/Timer.pm line 63.
Compilation failed in require at -e line 1.
BEGIN failed--compilation aborted at -e line 1.

The offending line in Template::Timer which dies (with a less than helpful error message, though it's understandable why the author felt this would never really fail):

my $super = __PACKAGE__->can("SUPER::$sub") or die;

Sorry chromatic. I quite sympathize with the problem you're trying to solve and I agree that calling UNIVERSAL::can as a function is a bad thing which needs to stop, but globally altering behavior, even with the best of intentions, is simply too dangerous.

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