Metaclass->add_method

[gitmo/Mouse.git] / lib / Mouse / Object.pm

diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm
index 8bf68d2..f813fd5 100644 (file)
--- a/lib/Mouse/Object.pm
+++ b/lib/Mouse/Object.pm
@@ -20,16 +20,35 @@ sub new {
         my $default;
 
         if (defined($from) && exists($args->{$from})) {
-            $attribute->verify_type_constraint($args->{$from})
-                if $attribute->has_type_constraint;
+            if ($attribute->has_trigger && $attribute->trigger->{before}) {
+                $attribute->trigger->{before}->($instance, $args->{$from}, $attribute);
+            }
+
+            if ($attribute->has_trigger && $attribute->trigger->{around}) {
+                $attribute->trigger->{around}->(sub {
+                    $args->{$from} = $_[1];
+
+                    $attribute->verify_type_constraint($args->{$from})
+                        if $attribute->has_type_constraint;
 
-            $instance->{$key} = $args->{$from};
+                    $instance->{$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) {
-                $attribute->trigger->($instance, $args->{$from}, $attribute);
+            if ($attribute->has_trigger && $attribute->trigger->{after}) {
+                $attribute->trigger->{after}->($instance, $args->{$from}, $attribute);
             }
         }
         else {