X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FClass%2FMOP%2FMethod%2FConstructor.pm;h=9d4a88c806b3a92f1d70248ff5ddd60c09cacf65;hb=e9a19694e92766a8d4de61fe2a576929748424c1;hp=6f9d2214a927ffdb42aec63042536664debbea20;hpb=8683db0e09d4b53db67d19f36810e4070e264d2d;p=gitmo%2FClass-MOP.git

diff --git a/lib/Class/MOP/Method/Constructor.pm b/lib/Class/MOP/Method/Constructor.pm
index 6f9d221..9d4a88c 100644
--- a/lib/Class/MOP/Method/Constructor.pm
+++ b/lib/Class/MOP/Method/Constructor.pm
@@ -7,7 +7,8 @@ use warnings;
 use Carp         'confess';
 use Scalar::Util 'blessed', 'weaken', 'looks_like_number';
 
-our $VERSION   = '0.65';
+our $VERSION   = '0.77';
+$VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
 use base 'Class::MOP::Method::Generated';
@@ -23,16 +24,7 @@ sub new {
     ($options{package_name} && $options{name})
         || confess "You must supply the package_name and name parameters $Class::MOP::Method::UPGRADE_ERROR_TEXT";
 
-    my $self = bless {
-        # from our superclass
-        'body'                 => undef,
-        'package_name'         => $options{package_name},
-        'name'                 => $options{name},        
-        # specific to this subclass
-        'options'              => $options{options} || {},
-        'associated_metaclass' => $options{metaclass},
-        'is_inline'            => ($options{is_inline} || 0),
-    } => $class;
+    my $self = $class->_new(\%options);
 
     # we don't want this creating
     # a cycle in the code, if not
@@ -44,6 +36,24 @@ sub new {
     return $self;
 }
 
+sub _new {
+    my $class = shift;
+    my $options = @_ == 1 ? $_[0] : {@_};
+
+    bless {
+        # from our superclass
+        'body'                 => undef,
+        'package_name'         => $options->{package_name},
+        'name'                 => $options->{name},        
+        # specific to this subclass
+        'options'              => $options->{options} || {},
+        'associated_metaclass' => $options->{metaclass},
+        'is_inline'            => ($options->{is_inline} || 0),
+    }, $class;
+}
+
+sub can_be_inlined { 1 }
+
 ## accessors
 
 sub options              { (shift)->{'options'}              }
@@ -79,36 +89,34 @@ sub generate_constructor_method {
 sub generate_constructor_method_inline {
     my $self = shift;
 
+    my $close_over = {};
+
     my $source = 'sub {';
-    $source .= "\n" . 'my ($class, %params) = @_;';
+    $source .= "\n" . 'my $class = shift;';
 
-    $source .= "\n" . 'return Class::MOP::Class->initialize($class)->new_object(%params)';
+    $source .= "\n" . 'return Class::MOP::Class->initialize($class)->new_object(@_)';
     $source .= "\n" . '    if $class ne \'' . $self->associated_metaclass->name . '\';';
 
+    $source .= "\n" . 'my $params = @_ == 1 ? $_[0] : {@_};';
+
     $source .= "\n" . 'my $instance = ' . $self->meta_instance->inline_create_instance('$class');
     $source .= ";\n" . (join ";\n" => map {
-        $self->_generate_slot_initializer($_)
+        $self->_generate_slot_initializer($_, $close_over)
     } 0 .. (@{$self->attributes} - 1));
     $source .= ";\n" . 'return $instance';
     $source .= ";\n" . '}';
     warn $source if $self->options->{debug};
 
-    my $code;
-    {
-        # NOTE:
-        # create the nessecary lexicals
-        # to be picked up in the eval
-        my $attrs = $self->attributes;
-
-        $code = eval $source;
-        confess "Could not eval the constructor :\n\n$source\n\nbecause :\n\n$@" if $@;
-    }
-    return $code;
+    return $self->_eval_closure(
+        $close_over,
+        $source
+    );
 }
 
 sub _generate_slot_initializer {
     my $self  = shift;
     my $index = shift;
+    my $close = shift;
 
     my $attr = $self->attributes->[$index];
 
@@ -121,7 +129,9 @@ sub _generate_slot_initializer {
         # in which case we can just deal with them
         # in the code we eval.
         if ($attr->is_default_a_coderef) {
-            $default = '$attrs->[' . $index . ']->default($instance)';
+            my $idx = @{$close->{'@defaults'}||=[]};
+            push(@{$close->{'@defaults'}}, $attr->default);
+            $default = '$defaults[' . $idx . ']->($instance)';
         }
         else {
             $default = $attr->default;
@@ -136,15 +146,15 @@ sub _generate_slot_initializer {
 
     if ( defined $attr->init_arg ) {
       return (
-          'if(exists $params{\'' . $attr->init_arg . '\'}){' . "\n" .
+          'if(exists $params->{\'' . $attr->init_arg . '\'}){' . "\n" .
                 $self->meta_instance->inline_set_slot_value(
                     '$instance',
-                    ("'" . $attr->name . "'"),
-                    '$params{\'' . $attr->init_arg . '\'}' ) . "\n" .
+                    $attr->name,
+                    '$params->{\'' . $attr->init_arg . '\'}' ) . "\n" .
            '} ' . (!defined $default ? '' : 'else {' . "\n" .
                 $self->meta_instance->inline_set_slot_value(
                     '$instance',
-                    ("'" . $attr->name . "'"),
+                    $attr->name,
                      $default ) . "\n" .
            '}')
         );
@@ -152,7 +162,7 @@ sub _generate_slot_initializer {
         return (
             $self->meta_instance->inline_set_slot_value(
                 '$instance',
-                ("'" . $attr->name . "'"),
+                $attr->name,
                  $default ) . "\n"
         );
     } else { return '' }
@@ -180,7 +190,7 @@ Class::MOP::Method::Constructor - Method Meta Object for constructors
   );
 
   # calling the constructor ...
-  $constructor->body->($metaclass->name, %params);
+  $constructor->body->execute($metaclass->name, %params);
 
 =head1 DESCRIPTION
 
@@ -217,6 +227,12 @@ metaclass which is passed into C<new>.
 This returns a boolean, but since constructors are very rarely
 not inlined, this always returns true for now.
 
+=item B<can_be_inlined>
+
+This method always returns true in this class. It exists so that
+subclasses (like in Moose) can override and do some sort of checking
+to determine whether or not inlining the constructor is safe.
+
 =item B<initialize_body>
 
 This creates the code reference for the constructor itself.