Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
I couldn't follow the continuation lab you mentioned. But I think the idea of a continuation primitive is exactly what we need, and my comments to Tilly earlier on this thread seems to be that.

Specifically, the first yeild returns a continuation object. Use that object to "resume", and it knows exactly which instance you mean. The resume should pass parameters, too. It would re-bind @_ in the function, so the line after yeild could look at that (again) if desired.

The resumer thing could be an object with various members, including call and reset and who knows what else. Or, it could return a function reference and just calling that will resume.

my $next= $container->iterate ('inorder'); while (my $node= $next->()) { ... }
Details: the iterate() function would do set-up and yeild with a token, using another built-in function to generate it. Or it could be a separate statement that creates it and yeilds at once. Then it goes into the traversal loop.

What do you think? —John


In reply to Re: Re: Perl 6 coroutines (RFC 31) by John M. Dlugosz
in thread Perl 6 coroutines (RFC 31) by John M. Dlugosz

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, 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 having an uproarious good time at the Monastery: (3)
    As of 2020-10-29 22:49 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      My favourite web site is:












      Results (274 votes). Check out past polls.

      Notices?