package Class::Accessor::Grouped;
use strict;
use warnings;
-use Carp;
+use Carp ();
use Class::Inspector ();
-use Scalar::Util qw/reftype blessed/;
+use Scalar::Util ();
use MRO::Compat;
+use Sub::Name ();
-use vars qw($VERSION);
-
-$VERSION = '0.07000';
+our $VERSION = '0.08004';
=head1 NAME
$group is the name of the accessor group for the generated accessors; they
will call get_$group($field) on get and set_$group($field, $value) on set.
+If you want to mimic Class::Accessor's mk_accessors $group has to be 'simple'
+to tell Class::Accessor::Grouped to use its own get_simple and set_simple
+methods.
+
@fieldspec is a list of field/accessor names; if a fieldspec is a scalar
this is used as both field and accessor name, if a listref it is expected to
be of the form [ $accessor, $field ].
sub _mk_group_accessors {
my($self, $maker, $group, @fields) = @_;
- my $class = blessed $self || $self;
+ my $class = Scalar::Util::blessed $self || $self;
# So we don't have to do lots of lookups inside the loop.
$maker = $self->can($maker) unless ref $maker;
foreach my $field (@fields) {
if( $field eq 'DESTROY' ) {
- carp("Having a data accessor named DESTROY in ".
+ Carp::carp("Having a data accessor named DESTROY in ".
"'$class' is unwise.");
}
($name, $field) = @$field if ref $field;
my $accessor = $self->$maker($group, $field);
+ my $alias_accessor = $self->$maker($group, $field);
+
my $alias = "_${name}_accessor";
+ my $full_name = join('::', $class, $name);
+ my $full_alias = join('::', $class, $alias);
- *{$class."\:\:$name"} = $accessor;
+ *$full_name = Sub::Name::subname($full_name, $accessor);
#unless defined &{$class."\:\:$field"}
-
- *{$class."\:\:$alias"} = $accessor;
+ *$full_alias = Sub::Name::subname($full_alias, $alias_accessor);
#unless defined &{$class."\:\:$alias"}
}
}
my $set = "set_$group";
my $get = "get_$group";
- # Build a closure around $field.
- return sub {
- my $self = shift;
-
- if(@_) {
- return $self->$set($field, @_);
+ # eval for faster fastiness
+ return eval "sub {
+ if(\@_ > 1) {
+ return shift->$set('$field', \@_);
}
else {
- return $self->$get($field);
+ return shift->$get('$field');
}
- };
+ };"
}
=head2 make_group_ro_accessor
my $get = "get_$group";
- return sub {
- my $self = shift;
-
- if(@_) {
- my $caller = caller;
- croak("'$caller' cannot alter the value of '$field' on ".
- "objects of class '$class'");
+ return eval "sub {
+ if(\@_ > 1) {
+ my \$caller = caller;
+ Carp::croak(\"'\$caller' cannot alter the value of '$field' on \".
+ \"objects of class '$class'\");
}
else {
- return $self->$get($field);
+ return shift->$get('$field');
}
- };
+ };"
}
=head2 make_group_wo_accessor
my $set = "set_$group";
- return sub {
- my $self = shift;
-
- unless (@_) {
- my $caller = caller;
- croak("'$caller' cannot access the value of '$field' on ".
- "objects of class '$class'");
+ return eval "sub {
+ unless (\@_ > 1) {
+ my \$caller = caller;
+ Carp::croak(\"'\$caller' cannot access the value of '$field' on \".
+ \"objects of class '$class'\");
}
else {
- return $self->$set($field, @_);
+ return shift->$set('$field', \@_);
}
- };
+ };"
}
=head2 get_simple
=cut
sub get_simple {
- my ($self, $get) = @_;
- return $self->{$get};
+ return $_[0]->{$_[1]};
}
=head2 set_simple
=cut
sub set_simple {
- my ($self, $set, $val) = @_;
- return $self->{$set} = $val;
+ return $_[0]->{$_[1]} = $_[2];
}
=cut
sub get_inherited {
- my ($self, $get) = @_;
my $class;
- if (blessed $self) {
- my $reftype = reftype $self;
- $class = ref $self;
+ if (Scalar::Util::blessed $_[0]) {
+ my $reftype = Scalar::Util::reftype $_[0];
+ $class = ref $_[0];
- if ($reftype eq 'HASH' && exists $self->{$get}) {
- return $self->{$get};
+ if ($reftype eq 'HASH' && exists $_[0]->{$_[1]}) {
+ return $_[0]->{$_[1]};
} elsif ($reftype ne 'HASH') {
- croak('Cannot get inherited value on an object instance that is not hash-based');
+ Carp::croak('Cannot get inherited value on an object instance that is not hash-based');
};
} else {
- $class = $self;
+ $class = $_[0];
};
no strict 'refs';
- return ${$class.'::__cag_'.$get} if defined(${$class.'::__cag_'.$get});
-
- if (!@{$class.'::__cag_supers'}) {
- @{$class.'::__cag_supers'} = $self->get_super_paths;
+ no warnings qw/uninitialized/;
+ return ${$class.'::__cag_'.$_[1]} if defined(${$class.'::__cag_'.$_[1]});
+
+ # we need to be smarter about recalculation, as @ISA (thus supers) can very well change in-flight
+ my $pkg_gen = mro::get_pkg_gen ($class);
+ if ( ${$class.'::__cag_pkg_gen'} != $pkg_gen ) {
+ @{$class.'::__cag_supers'} = $_[0]->get_super_paths;
+ ${$class.'::__cag_pkg_gen'} = $pkg_gen;
};
foreach (@{$class.'::__cag_supers'}) {
- return ${$_.'::__cag_'.$get} if defined(${$_.'::__cag_'.$get});
+ return ${$_.'::__cag_'.$_[1]} if defined(${$_.'::__cag_'.$_[1]});
};
return undef;
=cut
sub set_inherited {
- my ($self, $set, $val) = @_;
-
- if (blessed $self) {
- if (reftype $self eq 'HASH') {
- return $self->{$set} = $val;
+ if (Scalar::Util::blessed $_[0]) {
+ if (Scalar::Util::reftype $_[0] eq 'HASH') {
+ return $_[0]->{$_[1]} = $_[2];
} else {
- croak('Cannot set inherited value on an object instance that is not hash-based');
+ Carp::croak('Cannot set inherited value on an object instance that is not hash-based');
};
} else {
no strict 'refs';
- return ${$self.'::__cag_'.$set} = $val;
+ return ${$_[0].'::__cag_'.$_[1]} = $_[2];
};
}
Gets the value of the specified component class.
__PACKAGE__->mk_group_accessors('component_class' => 'result_class');
-
+
$self->result_class->method();
-
+
## same as
$self->get_component_class('result_class')->method();
=cut
sub get_component_class {
- my ($self, $field) = @_;
-
- return $self->get_inherited($field);
+ return $_[0]->get_inherited($_[1]);
};
=head2 set_component_class
__PACKAGE__->mk_group_accessors('component_class' => 'result_class');
__PACKAGE__->result_class('MyClass');
-
+
$self->result_class->method();
=cut
sub set_component_class {
- my ($self, $field, $value) = @_;
-
- if ($value) {
+ if ($_[2]) {
local $^W = 0;
- if (Class::Inspector->installed($value) && !Class::Inspector->loaded($value)) {
- eval "use $value";
+ if (Class::Inspector->installed($_[2]) && !Class::Inspector->loaded($_[2])) {
+ eval "use $_[2]";
- croak("Could not load $field '$value': ", $@) if $@;
+ Carp::croak("Could not load $_[1] '$_[2]': ", $@) if $@;
};
};
- return $self->set_inherited($field, $value);
+ return $_[0]->set_inherited($_[1], $_[2]);
};
=head2 get_super_paths
=cut
sub get_super_paths {
- my $class = blessed $_[0] || $_[0];
+ my $class = Scalar::Util::blessed $_[0] || $_[0];
return @{mro::get_linear_isa($class)};
};
Matt S. Trout <mst@shadowcatsystems.co.uk>
Christopher H. Laco <claco@chrislaco.com>
+With contributions from:
+
+Guillermo Roditi <groditi@cpan.org>
+
=head1 LICENSE
You may distribute this code under the same terms as Perl itself.