Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Hm. I believe the requires is provided by Moose::Role, and hence has the limitations outlined in the documentation.

What it comes down is that while I can use a role to require a method definition directly in a class, I can't "defer" the method definition until later in the class hierarchy. That is, the following would work:

package WidgetRole; use Moose::Role; requires 'get_widget_type'; package AbstractWidget; use Moose; with 'WidgetRole'; sub get_widget_type{ "IAmAbstract" }
but the following (which is what I'd want) wouldn't:
package WidgetRole; use Moose::Role; requires 'get_widget_type'; package AbstractWidget; use Moose; with 'WidgetRole'; package SnazzyWidget; use Moose; extends 'AbstractWidget'; sub get_widget_type{ "BasicWidget" } # throws error and dies

So I don't think roles/using requires is what I am looking for. But maybe I'm wrong - I have all of five days of experience with Moose!


In reply to Re^2: Abstract Methods in Moose by crashtest
in thread Abstract Methods in Moose by crashtest

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!
  • 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, 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, 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others exploiting the Monastery: (11)
    As of 2015-07-30 15:39 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (272 votes), past polls