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)