X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FMeta%2FTypeConstraint%2FEnum.pm;h=80675d8e83bbe99e6292b2a8d2fef5e541a95d23;hb=55d05fb16429c2150b5337b1a0130ae334e129d0;hp=e4aa322000156704b5646be5ecb46b16226725fc;hpb=72643035d73124e0b4ef7a8335cdc4f793732b5a;p=gitmo%2FMoose.git

diff --git a/lib/Moose/Meta/TypeConstraint/Enum.pm b/lib/Moose/Meta/TypeConstraint/Enum.pm
index e4aa322..80675d8 100644
--- a/lib/Moose/Meta/TypeConstraint/Enum.pm
+++ b/lib/Moose/Meta/TypeConstraint/Enum.pm
@@ -6,7 +6,7 @@ use metaclass;
 
 use Moose::Util::TypeConstraints ();
 
-our $VERSION   = '1.08';
+our $VERSION   = '1.12';
 $VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
@@ -21,6 +21,22 @@ sub new {
 
     $args{parent} = Moose::Util::TypeConstraints::find_type_constraint('Str');
 
+    if ( scalar @{ $args{values} } < 2 ) {
+        require Moose;
+        Moose->throw_error("You must have at least two values to enumerate through");
+    }
+
+    for (@{ $args{values} }) {
+        if (!defined($_)) {
+            require Moose;
+            Moose->throw_error("Enum values must be strings, not undef");
+        }
+        elsif (ref($_)) {
+            require Moose;
+            Moose->throw_error("Enum values must be strings, not '$_'");
+        }
+    }
+
     my $self = $class->_new(\%args);
 
     $self->compile_type_constraint()