Be nice to Moose::Role::unimport in older moose

[gitmo/Mouse.git] / lib / Mouse / Role.pm

diff --git a/lib/Mouse/Role.pm b/lib/Mouse/Role.pm
index 8eeadc9..57f319d 100644 (file)
--- a/lib/Mouse/Role.pm
+++ b/lib/Mouse/Role.pm
@@ -5,11 +5,18 @@ use warnings;
 
 use Sub::Exporter;
 use Carp 'confess';
+use Scalar::Util;
+
+use Mouse::Meta::Role;
 
 do {
     my $CALLER;
 
     my %exports = (
+        meta => sub {
+            my $meta = Mouse::Meta::Role->initialize($CALLER);
+            return sub { $meta };
+        },
         extends => sub {
             return sub {
                 confess "Role does not currently support 'extends'";
@@ -25,7 +32,13 @@ do {
             return sub { }
         },
         has => sub {
-            return sub { }
+            my $caller = $CALLER;
+            return sub {
+                my $name = shift;
+                my @opts = @_;
+
+                $caller->meta->add_attribute($name => \@opts);
+            }
         },
         with => sub {
             return sub { }
@@ -36,6 +49,12 @@ do {
         excludes => sub {
             return sub { }
         },
+        blessed => sub {
+            return \&Scalar::Util::blessed;
+        },
+        confess => sub {
+            return \&Carp::confess;
+        },
     );
 
     my $exporter = Sub::Exporter::build_exporter({
@@ -53,6 +72,13 @@ do {
     }
 
     sub unimport {
+        my $caller = caller;
+
+        no strict 'refs';
+        for my $keyword (keys %exports) {
+            next if $keyword eq 'meta'; # we don't delete this one
+            delete ${ $caller . '::' }{$keyword};
+        }
     }
 };