$attribute->trigger->{before}->($instance, $args->{$from}, $attribute);
}
- $attribute->verify_type_constraint($args->{$from})
- if $attribute->has_type_constraint;
+ if ($attribute->has_trigger && $attribute->trigger->{around}) {
+ $attribute->trigger->{around}->(sub {
+ $args->{$from} = $_[1];
- $instance->{$key} = $args->{$from};
+ $attribute->verify_type_constraint($args->{$from})
+ if $attribute->has_type_constraint;
+
+ $instance->{$key} = $args->{$from};
- weaken($instance->{$key})
- if ref($instance->{$key}) && $attribute->is_weak_ref;
+ weaken($instance->{$key})
+ if ref($instance->{$key}) && $attribute->is_weak_ref;
+ }, $instance, $args->{$from}, $attribute);
+ }
+ else {
+ $attribute->verify_type_constraint($args->{$from})
+ if $attribute->has_type_constraint;
+
+ $instance->{$key} = $args->{$from};
+
+ weaken($instance->{$key})
+ if ref($instance->{$key}) && $attribute->is_weak_ref;
+ }
if ($attribute->has_trigger && $attribute->trigger->{after}) {
$attribute->trigger->{after}->($instance, $args->{$from}, $attribute);