It's definitely possible, but it's not the most efficient thing in the whole wide world. The simple solution is to keep track of all your copies of the object so you can either implicitly drop them off a scope, or explicitly undef them. But it's definitely possible: 
use strict;
use Devel::FindBlessedRefs qw(find_refs);

my $x = bless {}, "test1";
my $y = bless {}, "test1";
my $z = $x;

undef $_ for find_refs "yeah";

[download]

-Paul

In reply to Re: How to explicitly destroy an object so that all other references to it would become false? by jettero
in thread How to explicitly destroy an object so that all other references to it would become false? by bdimych

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.