I'm confused. You want create a new function every time you encounter an object of type 'apple'? Also, it seems the subroutines for each object take a parameter (unless you mean to use & to preserve @_, but he said it should be maintainable ;^) so the new sub would have to be: 

*apple_proc = sub { 
        my $item = shift; 
        apple_wash($item);
        apple_core($item);
        apple_pulp($item);
        };
# same for bananas here.

[download]

I don't think you can avoid the lexical block here since we still need to test for the type of object before executing the appropriate subroutine: 

foreach my $item (@items) {
    SWITCH: for ($type) { # not sure from the writeup where
                          # $type is supposed to come from 
        /apple/ && do {
          apple_proc($item);
        };
        /banana/ && do {
          banana_proc($item);
        };
      warn "Unknown thingy: $type\n"; # Default case
    }
}

[download]

In reply to Re: Re: performance - loops, sub refs, symbol tables, and if/elses by djantzen
in thread performance - loops, sub refs, symbol tables, and if/elses by jaa

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.