package MooseX::Emulate::Class::Accessor::Fast;
use Moose::Role;
+use Class::MOP ();
+use Scalar::Util ();
-our $VERSION = 0.00100;
+our $VERSION = '0.00600';
=head1 NAME
=head1 SYNOPSYS
package MyClass;
- Use Moose;
+ use Moose;
with 'MooseX::Emulate::Class::Accessor::Fast';
=head1 METHODS
+=head2 BUILD $self %args
+
+Change the default Moose class building to emulate the behavior of C::A::F and
+store arguments in the instance hashref.
+
+=cut
+
+my $locate_metaclass = sub {
+ my $class = Scalar::Util::blessed($_[0]) || $_[0];
+ return Class::MOP::get_metaclass_by_name($class)
+ || Moose::Meta::Class->initialize($class);
+};
+
+sub BUILD {
+ my $self = shift;
+ my %args;
+ if (scalar @_ == 1 && defined $_[0] && ref($_[0]) eq 'HASH') {
+ %args = %{$_[0]};
+ } elsif( scalar(@_) ) {
+ %args = @_;
+ }
+ my @extra = grep { !exists($self->{$_}) } keys %args;
+ @{$self}{@extra} = @args{@extra};
+ return $self;
+}
+
=head2 mk_accessors @field_names
Create read-write accessors. An attribute named C<$field_name> will be created.
sub mk_accessors{
my $self = shift;
- my $meta = $self->meta;
+ my $meta = $locate_metaclass->($self);
for my $attr_name (@_){
my $reader = $self->accessor_name_for($attr_name);
my $writer = $self->mutator_name_for( $attr_name);
+
#dont overwrite existing methods
- my @opts = $reader eq $writer ?
- ( $self->can($reader) ? () : (accessor => $reader) ) :
- (
- ( $self->can($reader) ? () : (reader => $reader) ),
- ( $self->can($writer) ? () : (writer => $writer) ),
- );
- $meta->add_attribute($attr_name, @opts);
-
- $meta->add_method("_${attr_name}_accessor", $self->can($reader) )
- if($reader eq $attr_name && !$self->can("_${attr_name}_accessor") );
+ if($reader eq $writer){
+ my %opts = ( $meta->has_method($reader) ? () : (accessor => $reader) );
+ my $attr = $meta->add_attribute($attr_name, %opts);
+ if($attr_name eq $reader){
+ my $alias = "_${attr_name}_accessor";
+ next if $meta->has_method($alias);
+ my @alias_method = $attr->process_accessors(accessor => $alias, 0);
+ $meta->add_method(@alias_method);
+ }
+ } else {
+ my @opts = ( $meta->has_method($writer) ? () : (writer => $writer) );
+ push(@opts, (reader => $reader)) unless $meta->has_method($reader);
+ $meta->add_attribute($attr_name, @opts);
+ }
}
}
sub mk_ro_accessors{
my $self = shift;
- my $meta = $self->meta;
+ my $meta = $locate_metaclass->($self);
for my $attr_name (@_){
my $reader = $self->accessor_name_for($attr_name);
- $meta->add_attribute($attr_name,
- $self->can($reader) ? () : (reader => $reader) );
- $meta->add_method("_${attr_name}_accessor", $meta->find_method_by_name($reader))
- if($reader eq $attr_name && !$self->can("_${attr_name}_accessor") );
+ my @opts = ($meta->has_method($reader) ? () : (reader => $reader) );
+ my $attr = $meta->add_attribute($attr_name, @opts);
+ if($reader eq $attr_name && $reader eq $self->mutator_name_for($attr_name)){
+ $meta->add_method("_${attr_name}_accessor" => $attr->get_read_method_ref)
+ unless $meta->has_method("_${attr_name}_accessor");
+ }
}
}
#this is retarded.. but we need it for compatibility or whatever.
sub mk_wo_accessors{
my $self = shift;
- my $meta = $self->meta;
+ my $meta = $locate_metaclass->($self);
for my $attr_name (@_){
my $writer = $self->mutator_name_for($attr_name);
- $meta->add_attribute($attr_name, $self->can($writer) ? () : (writer => $writer) );
- $meta->add_method("_${attr_name}_accessor", $meta->find_method_by_name($writer))
- if($writer eq $attr_name && !$self->can("_${attr_name}_accessor") );
+ my @opts = ($meta->has_method($writer) ? () : (writer => $writer) );
+ my $attr = $meta->add_attribute($attr_name, @opts);
+ if($writer eq $attr_name && $writer eq $self->accessor_name_for($attr_name)){
+ $meta->add_method("_${attr_name}_accessor" => $attr->get_write_method_ref)
+ unless $meta->has_method("_${attr_name}_accessor");
+ }
}
}
sub follow_best_practice{
my $self = shift;
- my $meta = $self->meta;
+ my $meta = $locate_metaclass->($self);
$meta->remove_method('mutator_name_for');
$meta->remove_method('accessor_name_for');
my $self = shift;
my $k = shift;
confess "Wrong number of arguments received" unless scalar @_;
+ my $meta = $locate_metaclass->($self);
- #my $writer = $self->mutator_name_for( $k );
confess "No such attribute '$k'"
- unless ( my $attr = $self->meta->find_attribute_by_name($k) );
- my $writer = $attr->writer || $attr->accessor;
+ unless ( my $attr = $meta->find_attribute_by_name($k) );
+ my $writer = $attr->get_write_method;
$self->$writer(@_ > 1 ? [@_] : @_);
}
sub get{
my $self = shift;
confess "Wrong number of arguments received" unless scalar @_;
-
+ my $meta = $locate_metaclass->($self);
my @values;
- #while( my $attr = $self->meta->find_attribute_by_name( shift(@_) ){
+
for( @_ ){
confess "No such attribute '$_'"
- unless ( my $attr = $self->meta->find_attribute_by_name($_) );
- my $reader = $attr->reader || $attr->accessor;
+ unless ( my $attr = $meta->find_attribute_by_name($_) );
+ my $reader = $attr->get_read_method;
@_ > 1 ? push(@values, $self->$reader) : return $self->$reader;
}
return @values;
}
+sub make_accessor {
+ my($class, $field) = @_;
+ my $meta = $locate_metaclass->($class);
+ my $attr = $meta->find_attribute_by_name($field) || $meta->add_attribute($field);
+ my $reader = $attr->get_read_method_ref;
+ my $writer = $attr->get_write_method_ref;
+ return sub {
+ my $self = shift;
+ return $reader->($self) unless @_;
+ return $writer->($self,(@_ > 1 ? [@_] : @_));
+ }
+}
+
+
+sub make_ro_accessor {
+ my($class, $field) = @_;
+ my $meta = $locate_metaclass->($class);
+ my $attr = $meta->find_attribute_by_name($field) || $meta->add_attribute($field);
+ return $attr->get_read_method_ref;
+}
+
+
+sub make_wo_accessor {
+ my($class, $field) = @_;
+ my $meta = $locate_metaclass->($class);
+ my $attr = $meta->find_attribute_by_name($field) || $meta->add_attribute($field);
+ return $attr->get_write_method_ref;
+}
+
1;
=head2 meta
L<Moose>, L<Moose::Meta::Attribute>, L<Class::Accessor>, L<Class::Accessor::Fast>,
L<Class::MOP::Attribute>, L<MooseX::Adopt::Class::Accessor::Fast>
-=head1 AUTHOR
+=head1 AUTHORS
+
+Guillermo Roditi (groditi) E<lt>groditi@cpan.orgE<gt>
+
+With contributions from:
+
+=over 4
+
+=item Tomas Doran E<lt>bobtfish@bobtfish.netE<gt>
-Guillermo Roditi (groditi) <groditi@cpan.org>
+=back
=head1 LICENSE