X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FClassData.pm;h=87b68c9952a85454bfb9d91c3ed48c1accb6a261;hb=76721d3c6f8660effa365b8c1574b1e87f4973cb;hp=23fd1107b999bcc97a05b8ff3ed2ef93a93e7288;hpb=efbfd430a9e62335eca426a2be3bc098d65f8d1a;p=catagits%2FCatalyst-Runtime.git

diff --git a/lib/Catalyst/ClassData.pm b/lib/Catalyst/ClassData.pm
index 23fd110..87b68c9 100644
--- a/lib/Catalyst/ClassData.pm
+++ b/lib/Catalyst/ClassData.pm
@@ -1,6 +1,8 @@
 package Catalyst::ClassData;
 
 use Moose::Role;
+use Class::MOP;
+use Class::MOP::Object;
 use Scalar::Util 'blessed';
 
 sub mk_classdata {
@@ -10,26 +12,61 @@ sub mk_classdata {
 
   my $slot = '$'.$attribute;
   my $accessor =  sub {
-    if(@_ > 1){
-      $_[0]->meta->add_package_symbol($slot, \  $_[1]);
+    my $pkg = ref $_[0] || $_[0];
+    my $meta = $pkg->Class::MOP::Object::meta();
+    if (@_ > 1) {
+      $meta->namespace->{$attribute} = \$_[1];
+      no strict 'refs';
+      if (! *{"${pkg}::${attribute}"}{CODE} ) {
+        foreach my $super ( $meta->linearized_isa ) {
+          # If there is a code symbol for this class data in a parent class, but not in our 
+          # class then copy it into our package. This is evil.
+          my $parent_symbol = *{"${super}::${attribute}"}{CODE} ? \&{"${super}::${attribute}"} : undef;
+          if (defined $parent_symbol) {
+            *{"${pkg}::${attribute}"} = $parent_symbol;
+            last;
+          }
+        }      
+      }
       return $_[1];
     }
-    foreach my $super ( $_[0], $_[0]->meta->linearized_isa ) {
-      my $meta = $super->meta;
-      if( $meta->has_package_symbol($slot) ){
-        return $meta->get_package_symbol($slot);
+
+    # 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;
   };
-  my $accessor = eval $code;
-  confess("Failed to create accessor: $@ \n $code \n")
+
+  confess("Failed to create accessor: $@ ")
     unless ref $accessor eq 'CODE';
 
-  my $meta = $class->meta;
+  my $meta = $class->Class::MOP::Object::meta();
+  my $immutable_options;
+  if( $meta->is_immutable ){
+    $immutable_options = $meta->get_immutable_options;
+    $meta->make_mutable;
+  }
   my $alias = "_${attribute}_accessor";
   $meta->add_method($alias, $accessor);
   $meta->add_method($attribute, $accessor);
+  if(defined $immutable_options){
+    $meta->make_immutable(%{ $immutable_options });
+  }
   $class->$attribute($_[2]) if(@_ > 2);
   return $accessor;
 }
@@ -38,17 +75,25 @@ sub mk_classdata {
 
 __END__
 
-#   my $code = ' sub {
-#     if(@_ > 1){
-#       $_[0]->meta->add_package_symbol(\''.$slot.'\', \  $_[1]);
-#       return $_[1];
-#     }
-#     foreach my $super ( $_[0], $_[0]->meta->linearized_isa ) {
-#       my $meta = $super->meta;
-#       if( $meta->has_package_symbol(\''.$slot.'\') ){
-#         return $meta->get_package_symbol(\''.$slot.'\');
-#       }
-#     }
-#     return;
-#   }';
-#   my $accessor = eval $code;
+
+=head1 NAME
+
+Catalyst::ClassData - Class data acessors
+
+=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
+
+Guillermo Roditi
+
+=head1 COPYRIGHT
+
+This program is free software, you can redistribute it and/or modify it under
+the same terms as Perl itself.
+
+=cut