#!/usr/bin/perl -w

package Bench::Base;

sub new { 
    my($class) = shift;
    bless { test => 23 }, $class;
}

package Bench::Direct;
use base qw(Bench::Base);

package Bench::ByHand;
use base qw(Bench::Base);

sub test {
    my($self) = shift;
    if( @_ ) {
        $self->{test} = (@_ == 1 ? $_[0] : [@_]);
    }
    return $self->{test};
}

package Bench::Class::Accessor;
use base qw(Class::Accessor);
__PACKAGE__->mk_accessors(qw(test));


package Bench::Class::Accessor::Fast;
use base qw(Class::Accessor::Fast);
__PACKAGE__->mk_accessors(qw(test));

package Bench::Class::Accessor::Faster;
use base qw(Class::Accessor::Faster);
__PACKAGE__->mk_accessors(qw(test));

my %init   = ( test => 23 );
my $ca     = Bench::Class::Accessor->new(\%init);
my $fast   = Bench::Class::Accessor::Fast->new(\%init);
my $faster = Bench::Class::Accessor::Faster->new(\%init);
my $direct = Bench::Direct->new;
my $byhand = Bench::ByHand->new;

my $foo;
my $control = 42;


package main;
use Benchmark 'cmpthese';
use strict;

print "accessors:\n";
cmpthese( -1, 
           {
            'Basic' => sub { $foo = $ca->test; },
            'Fast' => sub { $foo = $fast->test; },
            'Faster' => sub { $foo = $faster->test; },
            'Average' => sub { $foo = $byhand->test; },
            'Direct' => sub { $foo = $direct->{test}; }
           }
         );

print "mutators:\n";
cmpthese( -1, 
           {
            'Acc' => sub { $ca->test(42); },
            'Fast' => sub { $fast->test(42); },
            'Faster' => sub { $faster->test(42); },
            'By hand' => sub { $byhand->test(42); },
            'Direct' => sub { $direct->{test} = 42; }
           }
         );