Comments, style

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

diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm
index bec6519..804f461 100644 (file)
--- a/lib/Mouse/Object.pm
+++ b/lib/Mouse/Object.pm
@@ -1,34 +1,37 @@
-#!/usr/bin/env perl
 package Mouse::Object;
 use strict;
 use warnings;
-use MRO::Compat;
 
-use Scalar::Util qw/blessed weaken/;
+use Scalar::Util 'weaken';
 use Carp 'confess';
 
 sub new {
     my $class = shift;
-    my %args;
-    if (scalar @_ == 1) {
-        if (defined $_[0]) {
-            (ref($_[0]) eq 'HASH')
-                || confess "Single parameters to new() must be a HASH ref";
-            %args = %{$_[0]};
-        }
-    }
-    else {
-        %args = @_;
-    }
+
+    my $args = $class->BUILDARGS(@_);
 
     my $instance = bless {}, $class;
 
-    for my $attribute (values %{ $class->meta->get_attribute_map }) {
+    for my $attribute ($class->meta->compute_all_applicable_attributes) {
         my $from = $attribute->init_arg;
         my $key  = $attribute->name;
-        my $default;
 
-        if (!exists($args{$from})) {
+        if (defined($from) && exists($args->{$from})) {
+            $args->{$from} = $attribute->coerce_constraint($args->{$from})
+                if $attribute->should_coerce;
+            $attribute->verify_type_constraint($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}, $attribute);
+            }
+        }
+        else {
             if ($attribute->has_default || $attribute->has_builder) {
                 unless ($attribute->is_lazy) {
                     my $default = $attribute->default;
@@ -36,9 +39,11 @@ sub new {
                     my $value = $attribute->has_builder
                               ? $instance->$builder
                               : ref($default) eq 'CODE'
-                                  ? $default->()
+                                  ? $default->($instance)
                                   : $default;
 
+                    $value = $attribute->coerce_constraint($value)
+                        if $attribute->should_coerce;
                     $attribute->verify_type_constraint($value)
                         if $attribute->has_type_constraint;
 
@@ -54,25 +59,28 @@ sub new {
                 }
             }
         }
+    }
 
-        if (exists($args{$from})) {
-            $attribute->verify_type_constraint($args{$from})
-                if $attribute->has_type_constraint;
+    $instance->BUILDALL($args);
 
-            $instance->{$key} = $args{$from};
+    return $instance;
+}
 
-            weaken($instance->{$key})
-                if ref($instance->{$key}) && $attribute->is_weak_ref;
+sub BUILDARGS {
+    my $class = shift;
 
-            if ($attribute->has_trigger) {
-                $attribute->trigger->($instance, $args{$from}, $attribute);
-            }
+    if (scalar @_ == 1) {
+        if (defined $_[0]) {
+            (ref($_[0]) eq 'HASH')
+                || confess "Single parameters to new() must be a HASH ref";
+            return {%{$_[0]}};
+        } else {
+            return {};
         }
     }
-
-    $instance->BUILDALL(\%args);
-
-    return $instance;
+    else {
+        return {@_};
+    }
 }
 
 sub DESTROY { shift->DEMOLISHALL }
@@ -83,9 +91,9 @@ sub BUILDALL {
     # short circuit
     return unless $self->can('BUILD');
 
-    no strict 'refs';
-
     for my $class (reverse $self->meta->linearized_isa) {
+        no strict 'refs';
+        no warnings 'once';
         my $code = *{ $class . '::BUILD' }{CODE}
             or next;
         $code->($self, @_);
@@ -131,6 +139,11 @@ end of L</new>.
 You may put any business logic initialization in BUILD methods. You don't
 need to redispatch or return any specific value.
 
+=head2 BUILDARGS
+
+Lets you override the arguments that C<new> takes. Return a hashref of
+parameters.
+
 =head2 DEMOLISHALL
 
 Calls L</DEMOLISH> on each class in the class hierarchy. This is called at