No, there really is very little difference, they are basically equivalent. I guess is it a matter of principle, the declarative "sugar" is meant to be used during class definition time and the MOP is meant to be used at all other times.

But, that all said, it might make more difference when we work out how to "compile" Moose classes (though I don't know this for sure) because part of that plan would involve caching the generated metaclass and then possibly turning the sugar keywords into noops (at least that was a path we explored in the early MooseX::Compile prototypes). So I guess if you really want to future proof things, it is best to use the MOP in this context. Hopefully by the end of YAPC::NA next week we will know more, it is one of the key topics on the Moose hackathon agenda.

-stvn

In reply to Re^3: Creating accessors on the fly, or not... by stvn
in thread Creating accessors on the fly, or not... by ~~David~~

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.