$object->{a}->{var2} is a reference. When you assign $object->{b}->{var1} = $object->{a}->{var2}; you are making the two references refer to the same thing. Then, when you do $object->{a}->{var2} = $dummy; you are making that one refer to something else.

If you want ...b... to refer to ...a..., then you need to make it a reference:

$object->{b}->{var1} = \$object->{a}->{var2};
but then you will have to add a layer of scalar dereferencing when getting the values out. The key point here is that there's a difference between two references referring to the same thing, and one reference referring to another reference.

What you really want is an alias, but you can't do that except on top-level, non-lexical variables.


Caution: Contents may have been coded under pressure.

In reply to Re: Unforseen OO conducts by Roy Johnson
in thread Unforseen OO conducts by Limited Infinity

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.