Ah, the joys of OO programming :)

Detecting a non-existant method depends upon what you're trying to do. If you mean, "how do I detect this at compile time", you're pretty much out of luck. Methods aren't bound to objects until run-time since, due to polymorphism, Perl has no way of knowing what sort of object you have, thus it can't know at compile time what method is going to be called.

Thus, you must rely on this method call being trapped at run-time. One way is to simply let Perl try and call the method and have it die. Then, you can read the useful method on the command line and take appropriate action :). If you don't want it to die, you'll have to create an AUTOLOAD method to trap the call and do as you will. One thing you could do is use String::Approx, walk the symbol table and dump a list of method names that prant might be.

Barring this, you'll just have to watch your typing and use strict.

Cheers,
Ovid

Join the Perlmonks Setiathome Group or just click on the the link and check out our stats.


In reply to Re: detecting improperly called subroutines by Ovid
in thread detecting improperly called subroutines by drfrog

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.