Seconded.

There's also another very important rule that I got from "Smalltalk Best Practice Patterns" (by Kent Beck) (I believe), which should be required reading for anyone doing serious OO. Yeah, it's all about Smalltalk, but most of the rules apply to any late-binding OO language like Perl.

The rule is that superclass calls should be made only to the same-named method. In other words, if you're in foo, you should never be calling SUPER::bar. This is the sign of a misunderstanding about SUPER and about objects in general. The point of SUPER is to extend a parent class behavior, not mix it up.

Wanting to "call the code two levels up" or "call a method other than your own name" are both signs of muddled thinking or an extremely bad class design.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to Re^2: Skipping the middle man & the SUPER gotcha by merlyn
in thread Skipping the middle man & the SUPER gotcha by tlm

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.