It even turns out that there is no speed difference. (I expected *some* advantage to the inline string, because there'd be an extra indirection. But it's lost to the method call overhead.) 

use Benchmark;

package Bar;

sub new {};

package main;

my $obj;
my $class = "Bar";  # "our" *is* slower, though.

timethese -1, {
    bareword => sub { $x = Bar->new()    },
    var      => sub { $x = $class->new() },
};

#########################################

Benchmark: running bareword, var for at least 1 CPU seconds...
  bareword:  1 wallclock secs ( 1.06 usr +  0.00 sys =  1.06 CPU) @ 59
+0160.38/s (n=625570)
       var:  1 wallclock secs ( 1.06 usr +  0.00 sys =  1.06 CPU) @ 59
+0160.38/s (n=625570)

[download]

In reply to Re^2: $foo = "Foo::Bar"; $foo->new() works? by gaal
in thread $foo = "Foo::Bar"; $foo->new() works? by mikfire

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.