And the same fix for role_type

diff --git a/Changes b/Changes
index f9f9ccb..15e5831 100644 (file)
--- a/Changes
+++ b/Changes
@@ -5,9 +5,9 @@ for, noteworthy changes.
 
   [BUG FIXES]
 
-  * Re-declaring a class_type constraint that has been already declared
-    now just returns the original type constraint, rather than replacing
-    the original constraint and ergo losing any coercions that were on
+  * Re-declaring a class_type or role_type constraint that has already been
+    declared now just returns the original type constraint, rather than
+    replacing the original constraint and ergo losing any coercions that were on
     the original constraint. (t0m)
 
 2.0402 Sat, Feb 04, 2012

diff --git a/lib/Moose/Util/TypeConstraints.pm b/lib/Moose/Util/TypeConstraints.pm
index bcd9f97..b44a0eb 100644 (file)
--- a/lib/Moose/Util/TypeConstraints.pm
+++ b/lib/Moose/Util/TypeConstraints.pm
@@ -201,6 +201,9 @@ sub create_role_type_constraint {
               . " and cannot be created again in "
               . $pkg_defined_in )
         }
+        else {
+            return $type;
+        }
     }
 
     my %options = (

diff --git a/t/type_constraints/role_type_constraint.t b/t/type_constraints/role_type_constraint.t
index ea6b34d..23828f6 100644 (file)
--- a/t/type_constraints/role_type_constraint.t
+++ b/t/type_constraints/role_type_constraint.t
@@ -61,4 +61,10 @@ ok( $type->equals(Moose::Meta::TypeConstraint::Role->new( name => "Oink", role =
 ok( !$type->equals(Moose::Meta::TypeConstraint::Role->new( name => "__ANON__", role => "Bar" )), "doesn't equal other anon constraint" );
 ok( $type->is_subtype_of(Moose::Meta::TypeConstraint::Role->new( name => "__ANON__", role => "Bar" )), "subtype of other anon constraint" );
 
+{   # See block comment in t/type_constraints/class_type_constraint.t
+    my $type;
+    is( exception { $type = role_type 'MyExampleRole' }, undef, 'Make initial role_type' );
+    is( exception { is(role_type('MyExampleRole'), $type, 're-running role_type gives same type') }, undef, 'No exception making duplicate role_type' );;
+}
+
 done_testing;