use Carp 'confess';
use Scalar::Util 'blessed', 'weaken', 'looks_like_number';
-our $VERSION = '0.72';
+our $VERSION = '0.78_02';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
$source .= "\n" . 'my $instance = ' . $self->meta_instance->inline_create_instance('$class');
$source .= ";\n" . (join ";\n" => map {
- $self->_generate_slot_initializer($_)
- } 0 .. (@{$self->attributes} - 1));
+ $self->_generate_slot_initializer($_, $close_over)
+ } @{$self->attributes});
$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 $code = $self->_eval_closure(
+ $close_over,
+ $source
+ );
+ confess "Could not eval the constructor :\n\n$source\n\nbecause :\n\n$@" if $@;
- $code = $self->_eval_closure(
- { '$attrs' => \$self->attributes },
- $source
- );
- confess "Could not eval the constructor :\n\n$source\n\nbecause :\n\n$@" if $@;
- }
return $code;
}
sub _generate_slot_initializer {
my $self = shift;
- my $index = shift;
-
- my $attr = $self->attributes->[$index];
+ my $attr = shift;
+ my $close = shift;
my $default;
if ($attr->has_default) {
# 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;
'if(exists $params->{\'' . $attr->init_arg . '\'}){' . "\n" .
$self->meta_instance->inline_set_slot_value(
'$instance',
- ("'" . $attr->name . "'"),
+ $attr->name,
'$params->{\'' . $attr->init_arg . '\'}' ) . "\n" .
'} ' . (!defined $default ? '' : 'else {' . "\n" .
$self->meta_instance->inline_set_slot_value(
'$instance',
- ("'" . $attr->name . "'"),
+ $attr->name,
$default ) . "\n" .
'}')
);
return (
$self->meta_instance->inline_set_slot_value(
'$instance',
- ("'" . $attr->name . "'"),
+ $attr->name,
$default ) . "\n"
);
} else { return '' }
=head1 DESCRIPTION
-This is a subclass of C<Class::MOP::Method> which deals with
-class constructors. This is used when making a class immutable
-to generate an optimized constructor.
+This is a subclass of C<Class::MOP::Method> which generates
+constructor methods.
=head1 METHODS
=over 4
-=item B<new (metaclass => $meta, options => \%options)>
-
-=item B<options>
+=item B<< Class::MOP::Method::Constructor->new(%options) >>
-This returns the options HASH which is passed into C<new>.
+This creates a new constructor object. It accepts a hash reference of
+options.
-=item B<associated_metaclass>
+=over 8
-This returns the metaclass which is passed into C<new>.
+=item * metaclass
-=item B<attributes>
+This should be a L<Class::MOP::Class> object. It is required.
-This returns the list of attributes which are associated with the
-metaclass which is passed into C<new>.
+=item * name
-=item B<meta_instance>
+The method name (without a package name). This is required.
-This returns the meta instance which is associated with the
-metaclass which is passed into C<new>.
+=item * package_name
-=item B<is_inline>
+The package name for the method. This is required.
-This returns a boolean, but since constructors are very rarely
-not inlined, this always returns true for now.
+=item * is_inline
-=item B<can_be_inlined>
+This indicates whether or not the constructor should be inlined. This
+defaults to false.
-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.
+=back
-=item B<initialize_body>
+=item B<< $metamethod->is_inline >>
-This creates the code reference for the constructor itself.
+Returns a boolean indicating whether or not the constructor is
+inlined.
-=back
+=item B<< $metamethod->associated_metaclass >>
-=head2 Method Generators
+This returns the L<Class::MOP::Class> object for the method.
-=over 4
+=item B<< $metamethod->can_be_inlined >>
-=item B<generate_constructor_method>
-
-=item B<generate_constructor_method_inline>
+This method always returns true in this class. It exists so that
+subclasses (as in Moose) can do some sort of checking to determine
+whether or not inlining the constructor is safe.
=back
=head1 COPYRIGHT AND LICENSE
-Copyright 2006-2008 by Infinity Interactive, Inc.
+Copyright 2006-2009 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>