X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FTypeConstraint.pm;h=7b8732d9d8eadc7679b294bf8ee110984d6f943e;hb=1d86420d34a7bbe8596b08035d7fb6c8c81d00a3;hp=538e3b288a6c45b1a82223783e36f8ca12653380;hpb=29607c0291634fac077d6e1c75e1491ba455c010;p=gitmo%2FMouse.git

diff --git a/lib/Mouse/Meta/TypeConstraint.pm b/lib/Mouse/Meta/TypeConstraint.pm
index 538e3b2..7b8732d 100644
--- a/lib/Mouse/Meta/TypeConstraint.pm
+++ b/lib/Mouse/Meta/TypeConstraint.pm
@@ -1,6 +1,8 @@
 package Mouse::Meta::TypeConstraint;
 use strict;
 use warnings;
+use Carp ();
+
 use overload '""'     => sub { shift->{name} },   # stringify to tc name
              fallback => 1;
 
@@ -28,6 +30,26 @@ sub check {
     $self->{_compiled_type_constraint}->(@_);
 }
 
+sub validate {
+    my ($self, $value) = @_;
+    if ($self->{_compiled_type_constraint}->($value)) {
+        return undef;
+    }
+    else {
+        $self->get_message($value);
+    }
+}
+
+sub assert_valid {
+    my ($self, $value) = @_;
+
+    my $error = $self->validate($value);
+    return 1 if ! defined $error;
+
+    Carp::confess($error);
+}
+
+
 sub message {
     return $_[0]->{message};
 }
@@ -47,6 +69,13 @@ sub get_message {
     }
 }
 
+sub is_a_type_of{
+    my($self, $tc_name) = @_;
+
+    return $self->name eq $tc_name
+        || $self->name =~ /\A $tc_name \[/xms; # "ArrayRef" =~ "ArrayRef[Foo]"
+}
+
 1;
 __END__