I wanted to check to see if the method I was writing was overriding an existing method in a parent class. That's when I realized that I don't know a truly clean way of doing that. I tried this, but it fails (as it should):

#!/usr/bin/perl -l

use strict;
use warnings;

{
    package A;

    sub foo { 'Whee!' }
    sub check { return shift->SUPER::can('foo') }
}

print A->check->();

[download]

The only thing I can cleanly think of is walking through @ISA, but this seems like such an obvious thing that someone would have solved this.

Cheers,
Ovid

New address of my CGI Course.

In reply to Detecting Overridden Methods 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.