X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Runtime.git;a=blobdiff_plain;f=lib%2FCatalyst%2FClassData.pm;h=f79149b063d4abcd5678460da8c0fc068c3443be;hp=66e9b62e58f49321d13fcee949334fa7cde80224;hb=8ad6fd584ff18d88abf31629d4593ba94eeb7647;hpb=a7caa492274a184c77ec32af58b2dc6db7295650

diff --git a/lib/Catalyst/ClassData.pm b/lib/Catalyst/ClassData.pm
index 66e9b62..f79149b 100644
--- a/lib/Catalyst/ClassData.pm
+++ b/lib/Catalyst/ClassData.pm
@@ -1,29 +1,95 @@
 package Catalyst::ClassData;
 
 use Moose::Role;
-use Scalar::Util 'blessed';
+use Moose::Meta::Class ();
+use Class::MOP;
+use Moose::Util ();
 
 sub mk_classdata {
-  my ($declaredclass, $attribute, $data) = @_;
+  my ($class, $attribute, $warn_on_instance) = @_;
   confess("mk_classdata() is a class method, not an object method")
-    if ref $declaredclass;
+    if blessed $class;
 
-  my $accessor = sub {
-    my $wantclass = blessed($_[0]) || $_[0];
+  my $slot = '$'.$attribute;
+  my $accessor =  sub {
+    my $pkg = ref $_[0] || $_[0];
+    my $meta = Moose::Util::find_meta($pkg)
+        || Moose::Meta::Class->initialize( $pkg );
+    if (@_ > 1) {
+      $meta->namespace->{$attribute} = \$_[1];
+      return $_[1];
+    }
 
-    return $wantclass->mk_classdata($attribute)->(@_)
-      if @_>1 && $wantclass ne $declaredclass;
-
-    $data = $_[1] if @_>1;
-    return $data;
+    # tighter version of
+    # if ( $meta->has_package_symbol($slot) ) {
+    #   return ${ $meta->get_package_symbol($slot) };
+    # }
+    no strict 'refs';
+    my $v = *{"${pkg}::${attribute}"}{SCALAR};
+    if (defined ${$v}) {
+     return ${$v};
+    } else {
+      foreach my $super ( $meta->linearized_isa ) {
+        # tighter version of same after
+        # my $super_meta = Moose::Meta::Class->initialize($super);
+        my $v = ${"${super}::"}{$attribute} ? *{"${super}::${attribute}"}{SCALAR} : undef;
+        if (defined ${$v}) {
+          return ${$v};
+        }
+      }
+    }
+    return;
   };
 
+  confess("Failed to create accessor: $@ ")
+    unless ref $accessor eq 'CODE';
+
+  my $meta = $class->Class::MOP::Object::meta();
+  confess "${class}'s metaclass is not a Class::MOP::Class"
+    unless $meta->isa('Class::MOP::Class');
+
+  my $was_immutable = $meta->is_immutable;
+  my %immutable_options = $meta->immutable_options;
+
+  $meta->make_mutable if $was_immutable;
+
   my $alias = "_${attribute}_accessor";
-  $declaredclass->meta->add_method($alias, $accessor);
-  $declaredclass->meta->add_method($attribute, $accessor);
+  $meta->add_method($alias, $accessor);
+  $meta->add_method($attribute, $accessor);
+
+  $meta->make_immutable(%immutable_options) if $was_immutable;
+
+  $class->$attribute($_[2]) if(@_ > 2);
   return $accessor;
 }
 
 1;
 
 __END__
+
+
+=head1 NAME
+
+Catalyst::ClassData - Class data accessors
+
+=head1 METHODS
+
+=head2 mk_classdata $name, $optional_value
+
+A moose-safe clone of L<Class::Data::Inheritable> that borrows some ideas from
+L<Class::Accessor::Grouped>;
+
+=head1 AUTHOR
+
+=begin stopwords
+
+Guillermo Roditi
+
+=end stopwords
+
+=head1 COPYRIGHT
+
+This library is free software. You can redistribute it and/or modify it under
+the same terms as Perl itself.
+
+=cut