package DBI::Util::_accessor;
use strict;
use Carp;
our $VERSION = sprintf("0.%06d", q$Revision: 9478 $ =~ /(\d+)/);
# inspired by Class::Accessor::Fast
sub new {
my($proto, $fields) = @_;
my($class) = ref $proto || $proto;
$fields ||= {};
my @dubious = grep { !m/^_/ && !$proto->can($_) } keys %$fields;
carp "$class doesn't have accessors for fields: @dubious" if @dubious;
# make a (shallow) copy of $fields.
bless {%$fields}, $class;
}
sub mk_accessors {
my($self, @fields) = @_;
$self->mk_accessors_using('make_accessor', @fields);
}
sub mk_accessors_using {
my($self, $maker, @fields) = @_;
my $class = ref $self || $self;
# So we don't have to do lots of lookups inside the loop.
$maker = $self->can($maker) unless ref $maker;
no strict 'refs';
foreach my $field (@fields) {
my $accessor = $self->$maker($field);
*{$class."\:\:$field"} = $accessor
unless defined &{$class."\:\:$field"};
}
#my $hash_ref = \%{$class."\:\:_accessors_hash};
#$hash_ref->{$_}++ for @fields;
# XXX also copy down _accessors_hash of base class(es)
# so one in this class is complete
return;
}
sub make_accessor {
my($class, $field) = @_;
return sub {
my $self = shift;
return $self->{$field} unless @_;
croak "Too many arguments to $field" if @_ > 1;
return $self->{$field} = shift;
};
}
sub make_accessor_autoviv_hashref {
my($class, $field) = @_;
return sub {
my $self = shift;
return $self->{$field} ||= {} unless @_;
croak "Too many arguments to $field" if @_ > 1;
return $self->{$field} = shift;
};
}
1;
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