use strict;
use warnings;
-our $VERSION = '0.04';
+our $VERSION = '0.05';
use 5.006;
use Sub::Exporter;
around => sub {
return \&Class::Method::Modifiers::around;
},
+
+ with => sub {
+ my $caller = $CALLER;
+
+ return sub {
+ my $role = shift;
+ my $class = $caller->meta;
+
+ confess "Mouse::Role only supports 'with' on individual roles at a time" if @_;
+
+ Mouse::load_class($role);
+ $role->meta->apply($class);
+ };
+ },
);
my $exporter = Sub::Exporter::build_exporter({
Lets you automatically weaken any reference stored in the attribute.
-=item trigger => Coderef
+=item trigger => CodeRef | HashRef
+
+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.
-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.
+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