X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FMeta%2FTypeConstraint%2FEnum.pm;h=9d9e91acbf9620eac15da8684ecd4adbfbf36b19;hb=0953b5a4784ae9e36130d87ad9bff255b5c581c8;hp=c5a1981cfb4c9aa564162ce850204228fde103ac;hpb=3eb89f709f04907580b508f821d6be2316fcb65f;p=gitmo%2FMoose.git

diff --git a/lib/Moose/Meta/TypeConstraint/Enum.pm b/lib/Moose/Meta/TypeConstraint/Enum.pm
index c5a1981..9d9e91a 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   = '1.01';
+our $VERSION   = '1.15';
 $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()