make check_associated_methods better

diff --git a/Changes b/Changes
index 6884cb2..32f804a 100644 (file)
--- a/Changes
+++ b/Changes
@@ -1,6 +1,12 @@
 Also see Moose::Manual::Delta for more details of, and workarounds
 for, noteworthy changes.
 
+0.85
+    * Moose::Meta::Attribute
+      - The warning for 'no associated methods' is now split out into the
+        check_associated_methods method, so that extensions can safely call
+        'after install_accessors => ...'. (hdp)
+
 0.84 Fri, Jun 26, 2009
     * Moose::Role
       - has now sets definition_context for attributes defined in

diff --git a/lib/Moose/Meta/Attribute.pm b/lib/Moose/Meta/Attribute.pm
index 25b94cb..b734854 100644 (file)
--- a/lib/Moose/Meta/Attribute.pm
+++ b/lib/Moose/Meta/Attribute.pm
@@ -557,6 +557,11 @@ sub install_accessors {
     my $self = shift;
     $self->SUPER::install_accessors(@_);
     $self->install_delegation if $self->has_handles;
+    return;
+}
+
+sub check_associated_methods {
+    my $self = shift;
     unless (
         @{ $self->associated_methods }
         || ($self->_is_metadata || '') eq 'bare'
@@ -569,7 +574,6 @@ sub install_accessors {
             . "\n"
         )
     }
-    return;
 }
 
 sub _process_accessors {
@@ -827,7 +831,7 @@ name as the attribute, and a C<writer> with the name you provided.
 Use 'bare' when you are deliberately not installing any methods
 (accessor, reader, etc.) associated with this attribute; otherwise,
 Moose will issue a deprecation warning when this attribute is added to a
-metaclass.
+metaclass.  See L</check_associated_methods>.
 
 =item * isa => $type
 
@@ -1059,6 +1063,13 @@ Given a value, this method returns true if the value is valid for the
 attribute's type constraint. If the value is not valid, it throws an
 error.
 
+=item B<< $attr->check_associated_methods >>
+
+This method makes sure that either an explicit C<< is => 'bare' >> was passed
+to the attribute's constructor or that the attribute has at least one
+associated method (reader, writer, delegation, etc.).  Otherwise, it issues a
+warning.
+
 =item B<< $attr->handles >>
 
 This returns the value of the C<handles> option passed to the

diff --git a/lib/Moose/Meta/Class.pm b/lib/Moose/Meta/Class.pm
index 9059a02..0daeacb 100644 (file)
--- a/lib/Moose/Meta/Class.pm
+++ b/lib/Moose/Meta/Class.pm
@@ -243,11 +243,17 @@ sub superclasses {
 
 sub add_attribute {
     my $self = shift;
-    $self->SUPER::add_attribute(
+    my $attr =
         (blessed $_[0] && $_[0]->isa('Class::MOP::Attribute')
             ? $_[0]
-            : $self->_process_attribute(@_))
-    );
+            : $self->_process_attribute(@_));
+    $self->SUPER::add_attribute($attr);
+    # it may be a Class::MOP::Attribute, theoretically, which doesn't have
+    # 'bare' and doesn't implement this method
+    if ($attr->can('check_associated_methods')) {
+        $attr->check_associated_methods;
+    }
+    return $attr;
 }
 
 sub add_override_method_modifier {