What are you hoping to get out of ref() and what is it giving you now when you feed it your faker-objects?

Incidentally, if Scalar::Util's blessed() is available, $result = blessed($maybe_obj) and $maybe_obj->isa( ... ); might be faster than eval { $result->isa( ... ) };. 

           Rate    eval2 blessed1    eval1 blessed2
eval2    6.80/s       --     -57%     -61%     -76%
blessed1 15.9/s     134%       --      -9%     -43%
eval1    17.4/s     156%      10%       --     -38%
blessed2 28.0/s     313%      76%      61%       --

[download]

Here's the test script: 

#!/usr/bin/perl
use strict;
use warnings;

use Scalar::Util qw( blessed );
use Benchmark qw( cmpthese );

my $obj = bless {}, 'Foo';
my $not_obj;
my $result;

cmpthese( -1, {
    eval1 => sub { 
        for ( 0 .. 10_000 ) {
            $result = eval { $obj->isa('Foo') };
            $result = eval { $obj->isa('Bar') };
        }       
    },
    blessed1 => sub {
        for ( 0 .. 10_000 ) {
            $result = blessed($obj) and $obj->isa('Foo');
            $result = blessed($obj) and $obj->isa('Bar');
        }       
    },
    eval2 => sub {
        for ( 0 .. 10_000 ) {
            $result = eval { $not_obj->isa('Foo') };
            $result = eval { $not_obj->isa('Bar') };
        }       
    },
    blessed2 => sub {
        for ( 0 .. 10_000 ) {
            $result = blessed($not_obj) and $not_obj->isa('Foo');
            $result = blessed($not_obj) and $not_obj->isa('Bar');
        }       
    },
});

[download]
--
Marvin Humphrey
Rectangular Research ― http://www.rectangular.com

In reply to Re: Overloading ref() just like ->isa and ->can? by creamygoodness
in thread Overloading ref() just like ->isa and ->can? by diotalevi

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