A function call does the stash lookup when it's compiled, and compile time inside the eval (and consequently require) is runtime.

Deleting the Stash entry after the call is compiled doesn't help, because the reference is cached.

But you can always redefine/redeclare the sub. An already compiled call will execute the new code.

If you are looking for a way to destroy a sub in a way to make an already compiled call break, I'm very sceptical about the wisdom of this concept.

FWIW: you can also try delete $::{'My::'} to delete the whole package. But this won't touch already referenced elements, resp. compiled calls.

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery


In reply to Re: Refresh a Module by LanX
in thread Refresh a Module by Timka

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.