tweaked how constraints work to narrow and tighten scope

[catagits/Catalyst-Runtime.git] / lib / Catalyst / Controller.pm

diff --git a/lib/Catalyst/Controller.pm b/lib/Catalyst/Controller.pm
index 820eaed..3db8f36 100644 (file)
--- a/lib/Catalyst/Controller.pm
+++ b/lib/Catalyst/Controller.pm
@@ -898,6 +898,15 @@ declared attributes you must quote them:
 
     sub my_moose_type :Local Args('Int') { ... }
 
+If you use 'reference' type constraints (such as ArrayRef[Int]) that have an unknown
+number of allowed matches, we set this the same way "Args" is.  Please keep in mind
+that actions with an undetermined number of args match at lower precidence than those
+with a fixed number.  You may use reference types such as Tuple from L<Types::Standard>
+that allows you to fix the number of allowed args.  For example Args(Tuple[Int,Int])
+would be determined to be two args (or really the same as Args(Int,Int).)  You may
+find this useful for creating custom subtypes with complex matching rules that you 
+wish to reuse over many actions.
+
 See L<Catalyst::RouteMatching> for more.
 
 =head2 Consumes('...')