Beginning of dzilization

[gitmo/Moose.git] / lib / Moose / Meta / Attribute / Native / Trait.pm

diff --git a/lib/Moose/Meta/Attribute/Native/Trait.pm b/lib/Moose/Meta/Attribute/Native/Trait.pm
index c8c0a6a..bb9f5f5 100644 (file)
--- a/lib/Moose/Meta/Attribute/Native/Trait.pm
+++ b/lib/Moose/Meta/Attribute/Native/Trait.pm
@@ -1,26 +1,85 @@
 
 package Moose::Meta::Attribute::Native::Trait;
 use Moose::Role;
+
+use List::MoreUtils qw( any uniq );
 use Moose::Util::TypeConstraints;
+use Moose::Deprecated;
 
-our $VERSION   = '1.15';
-$VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
 requires '_helper_type';
 
+has _used_default_is => (
+    is      => 'rw',
+    isa     => 'Bool',
+    default => 0,
+);
+
 before '_process_options' => sub {
     my ( $self, $name, $options ) = @_;
 
     $self->_check_helper_type( $options, $name );
 
-    $options->{is} = $self->_default_is
-        if !exists $options->{is} && $self->can('_default_is');
+    if ( !( any { exists $options->{$_} } qw( is reader writer accessor ) )
+        && $self->can('_default_is') ) {
+
+        $options->{is} = $self->_default_is;
 
-    $options->{default} = $self->_default_default
-        if !exists $options->{default} && $self->can('_default_default');
+        $options->{_used_default_is} = 1;
+    }
+
+    if (
+        !(
+            $options->{required}
+            || any { exists $options->{$_} } qw( default builder lazy_build )
+        )
+        && $self->can('_default_default')
+        ) {
+
+        $options->{default} = $self->_default_default;
+
+        Moose::Deprecated::deprecated(
+            feature => 'default default for Native Trait',
+            message =>
+                'Allowing a native trait to automatically supply a default is deprecated.'
+                . ' You can avoid this warning by supplying a default, builder, or making the attribute required'
+        );
+    }
 };
 
+after 'install_accessors' => sub {
+    my $self = shift;
+
+    return unless $self->_used_default_is;
+
+    my @methods
+        = $self->_default_is eq 'rw'
+        ? qw( reader writer accessor )
+        : 'reader';
+
+    my $name = $self->name;
+    my $class = $self->associated_class->name;
+
+    for my $meth ( uniq grep {defined} map { $self->$_ } @methods ) {
+
+        my $message
+            = "The $meth method in the $class class was automatically created"
+            . " by the native delegation trait for the $name attribute."
+            . q{ This "default is" feature is deprecated.}
+            . q{ Explicitly set "is" or define accessor names to avoid this};
+
+        $self->associated_class->add_before_method_modifier(
+            $meth => sub {
+                Moose::Deprecated::deprecated(
+                    feature => 'default is for Native Trait',
+                    message =>$message,
+                );
+            }
+        );
+    }
+    };
+
 sub _check_helper_type {
     my ( $self, $options, $name ) = @_;
 
@@ -108,6 +167,7 @@ sub _native_accessor_class_for {
         . $self->_native_type . '::'
         . $suffix;
 
+    Class::MOP::load_class($role);
     return Moose::Meta::Class->create_anon_class(
         superclasses =>
             [ $self->accessor_metaclass, $self->delegation_metaclass ],
@@ -138,11 +198,9 @@ no Moose::Util::TypeConstraints;
 
 1;
 
-__END__
-
-=head1 NAME
+# ABSTRACT: Shared role for native delegation traits
 
-Moose::Meta::Attribute::Native::Trait - Base role for helpers
+__END__
 
 =head1 BUGS
 
@@ -150,23 +208,7 @@ See L<Moose/BUGS> for details on reporting bugs.
 
 =head1 SEE ALSO
 
-Documentation for Moose native traits starts at L<Moose::Meta::Attribute Native>
-
-=head1 AUTHORS
-
-Yuval Kogman
-
-Shawn M Moore
-
-Jesse Luehrs
-
-=head1 COPYRIGHT AND LICENSE
-
-Copyright 2007-2009 by Infinity Interactive, Inc.
-
-L<http://www.iinteractive.com>
-
-This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
+Documentation for Moose native traits can be found in
+L<Moose::Meta::Attribute::Native>.
 
 =cut