X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse.pm;h=2df3ba1f9974d8cfebb2fc81d9e78aeb65d18b5f;hb=d16fe7d79e7f254ed479b58681d716e78b3e8caf;hp=c6a7a2a32dad901bd344ace39efa86485854fb73;hpb=e5f31f1f0660e9c8b0f8f55b181f0edb55b650fb;p=gitmo%2FMouse.git

diff --git a/lib/Mouse.pm b/lib/Mouse.pm
index c6a7a2a..2df3ba1 100644
--- a/lib/Mouse.pm
+++ b/lib/Mouse.pm
@@ -79,7 +79,7 @@ do {
                 confess "Mouse::Role only supports 'with' on individual roles at a time" if @_;
 
                 Mouse::load_class($role);
-                $role->meta->apply_to_class($class);
+                $role->meta->apply($class);
             };
         },
     );
@@ -336,11 +336,20 @@ L</handles>, such as regular expression and coderef, are not yet supported.
 
 Lets you automatically weaken any reference stored in the attribute.
 
-=item trigger => Coderef
+=item trigger => CodeRef | HashRef
 
-Any time the attribute's value is set (either through the accessor or the
-constructor), the trigger is called on it. The trigger receives as arguments
-the instance, the new value, and the attribute instance.
+Triggers are like method modifiers for setting attribute values. You can have
+a "before" and an "after" trigger, each of which receive as arguments the instance, the new value, and the attribute metaclass. Historically, triggers have
+only been "after" modifiers, so if you use a coderef for the C<trigger> option,
+it will maintain that compatibility. Like method modifiers, you can't really
+affect the act of setting the attribute value, and the return values of the 
+modifiers are ignored.
+
+There's also an "around" trigger which you can use to change the value that
+is being set on the attribute, or even prevent the attribute from being
+updated. The around trigger receives as arguments a code reference to invoke
+to set the attribute's value (which expects as arguments the instance and
+the new value), the instance, the new value, and the attribute metaclass.
 
 =item builder => Str