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package Class::Accessor::Faster;
use base 'Class::Accessor';
use strict;
$Class::Accessor::Faster::VERSION = '0.34';
my %slot;
sub _slot {
my($class, $field) = @_;
my $n = $slot{$class}->{$field};
return $n if defined $n;
$n = keys %{$slot{$class}};
$slot{$class}->{$field} = $n;
return $n;
}
sub new {
my($proto, $fields) = @_;
my($class) = ref $proto || $proto;
my $self = bless [], $class;
$fields = {} unless defined $fields;
for my $k (keys %$fields) {
my $n = $class->_slot($k);
$self->[$n] = $fields->{$k};
}
return $self;
}
sub make_accessor {
my($class, $field) = @_;
my $n = $class->_slot($field);
return sub {
return $_[0]->[$n] if scalar(@_) == 1;
return $_[0]->[$n] = scalar(@_) == 2 ? $_[1] : [@_[1..$#_]];
};
}
sub make_ro_accessor {
my($class, $field) = @_;
my $n = $class->_slot($field);
return sub {
return $_[0]->[$n] if @_ == 1;
my $caller = caller;
$_[0]->_croak("'$caller' cannot alter the value of '$field' on objects of class '$class'");
};
}
sub make_wo_accessor {
my($class, $field) = @_;
my $n = $class->_slot($field);
return sub {
if (@_ == 1) {
my $caller = caller;
$_[0]->_croak("'$caller' cannot access the value of '$field' on objects of class '$class'");
} else {
return $_[0]->[$n] = $_[1] if @_ == 2;
return (shift)->[$n] = \@_;
}
};
}
1;
__END__
=head1 NAME
Class::Accessor::Faster - Even faster, but less expandable, accessors
=head1 SYNOPSIS
package Foo;
use base qw(Class::Accessor::Faster);
=head1 DESCRIPTION
This is a faster but less expandable version of Class::Accessor::Fast.
Class::Accessor's generated accessors require two method calls to accompish
their task (one for the accessor, another for get() or set()).
Class::Accessor::Fast eliminates calling set()/get() and does the access itself,
resulting in a somewhat faster accessor.
Class::Accessor::Faster uses an array reference underneath to be faster.
Read the documentation for Class::Accessor for more info.
=head1 AUTHORS
Copyright 2007 Marty Pauley <marty+perl@kasei.com>
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. That means either (a) the GNU General Public
License or (b) the Artistic License.
=head1 SEE ALSO
L<Class::Accessor>
=cut