X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSafe%2FIsa.pm;h=81d228160089f5d616fe3f7e3b2e35bf3ad28dc4;hb=f3335392f5835f3396cccd906b7716ce02bb06c0;hp=0495cccb98c46b1c7266a8ad7c8e8ac1a885213b;hpb=4703f64cbe034ffe6e326ca165c6fb8238664be4;p=p5sagit%2FSafe-Isa.git

diff --git a/lib/Safe/Isa.pm b/lib/Safe/Isa.pm
index 0495ccc..81d2281 100644
--- a/lib/Safe/Isa.pm
+++ b/lib/Safe/Isa.pm
@@ -3,14 +3,17 @@ package Safe::Isa;
 use strict;
 use warnings FATAL => 'all';
 use Scalar::Util qw(blessed);
-use base qw(Exporter);
+use Exporter 5.57 qw(import);
 
-our $VERSION = '1.000001';
+our $VERSION = '1.000005';
 
 our @EXPORT = qw($_call_if_object $_isa $_can $_does $_DOES);
 
 our $_call_if_object = sub {
   my ($obj, $method) = (shift, shift);
+  # This is intentionally a truth test, not a defined test, otherwise
+  # we gratuitously break modules like Scalar::Defer, which would be
+  # un-perlish.
   return unless blessed($obj);
   return $obj->$method(@_);
 };
@@ -103,6 +106,11 @@ is equivalent to
     }
   };
 
+Note that we don't handle trying class names, because many things are valid
+class names that you might not want to treat as one (like say "Matt") - the
+C<is_module_name> function from L<Module::Runtime> is a good way to check for
+something you might be able to call methods on if you want to do that.
+
 =head1 EXPORTS
 
 =head2 $_isa