It doesn't ignore the class name.

Instead, it appears to me by overwriting the namespace of Bar, you're overwriting everything in Bar::, including it's "identity". So class Bar is from now on, identified as class Foo.

Check out this similar, but even more reduced code: 

{
    package Foo;
    sub foo { bless {}, "Bar" }
}

*Bar:: = \*Foo::;

use Data::Dumper;
print Dumper(Foo->foo);

[download]
There's no reason why it wouldn't print "Bar" for the class, no? Yet, this is the result I get: 
$VAR1 = bless( {}, 'Foo' );

[download]

Drop the assignment of the stash, and it behaves as you and I expect.

I have no idea where the identity of the class is stored in the stash, but it must be somewhere — and you're overwriting it.

update: Replace the assignment of the stash with the less rigorous: 

*Bar::foo = \*Foo::foo;

[download]
and it still behaves as expected, yielding: 
$VAR1 = bless( {}, 'Bar' );

[download]
whether you call it like either of: 
print Dumper(Foo->foo);
print Dumper(Bar->foo);

[download]

In reply to Re: Two argument bless sometimes ignores the class name? by bart
in thread Two argument bless sometimes ignores the class name? by Ovid

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.