Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Yes, Perl 6 will certainly have eval, and yes, it will certainly disable certain kinds of optimizations--just as it does in Perl 5. That's the nature of the beast. And if you're going to compile a program for your PDA, the size of the executable may grow dramatically if you use eval, since it then has to include the compiler.

It's just that eval, like goto, is the most general thing in its class. You never want to use either of those when there is a more specific construct that does what you want. Just as we've added various controlled forms of goto over the years, we've looked at the various uses of eval over the years and abstracted out various common operations like aliasing, symbolic references, and closure generation.

As for all the references to optimizations, don't sweat it. It's something language designers and implementors are supposed to worry about, and that concern leaks through at times. But most users shouldn't have to worry about it, at least until they have a bit of code they need to make run faster.


In reply to Re: Re: Re: Re: Apocalypse 12 by TimToady
in thread Apocalypse 12 by broquaint

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
  • Outside of code tags, you may need to use entities for some characters:
            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 about the Monastery: (7)
    As of 2014-09-22 07:00 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      How do you remember the number of days in each month?











      Results (182 votes), past polls