use warnings;
use Carp 'confess';
-use Scalar::Util 'reftype', 'blessed';
-use B 'svref_2object';
+use Scalar::Util 'weaken';
-our $VERSION = '0.02';
+our $VERSION = '0.64_05';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
-# introspection
+use base 'Class::MOP::Object';
-sub meta {
- require Class::MOP::Class;
- Class::MOP::Class->initialize(blessed($_[0]) || $_[0]);
-}
+# NOTE:
+# if poked in the right way,
+# they should act like CODE refs.
+use overload '&{}' => sub { $_[0]->body }, fallback => 1;
+
+our $UPGRADE_ERROR_TEXT = q{
+---------------------------------------------------------
+NOTE: this error is likely not an error, but a regression
+caused by the latest upgrade to Moose/Class::MOP. Consider
+upgrading any MooseX::* modules to their latest versions
+before spending too much time chasing this one down.
+---------------------------------------------------------
+};
# construction
-sub new {
+sub wrap {
+ my ( $class, @args ) = @_;
+
+ unshift @args, 'body' if @args % 2 == 1;
+
+ my %params = @args;
+ my $code = $params{body};
+
+ ('CODE' eq ref($code))
+ || confess "You must supply a CODE reference to bless, not (" . ($code || 'undef') . ")";
+
+ ($params{package_name} && $params{name})
+ || confess "You must supply the package_name and name parameters $UPGRADE_ERROR_TEXT";
+
+ my $self = (ref($class) || $class)->_new(\%params);
+
+ weaken($self->{associated_metaclass}) if $self->{associated_metaclass};
+
+ return $self;
+}
+
+sub _new {
my $class = shift;
- my $code = shift;
- (reftype($code) && reftype($code) eq 'CODE')
- || confess "You must supply a CODE reference to bless";
- bless $code => blessed($class) || $class;
+ my $params = @_ == 1 ? $_[0] : {@_};
+
+ my $self = bless {
+ 'body' => $params->{body},
+ 'associated_metaclass' => $params->{associated_metaclass},
+ 'package_name' => $params->{package_name},
+ 'name' => $params->{name},
+ } => $class;
}
-{
- my %MODIFIERS;
-
- sub wrap {
- my $code = shift;
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- my $modifier_table = {
- orig => $code,
- before => [],
- after => [],
- around => {
- cache => $code,
- methods => [],
- },
- };
- my $method = $code->new(sub {
- $_->(@_) for @{$modifier_table->{before}};
- my @rval = $modifier_table->{around}->{cache}->(@_);
- $_->(@_) for @{$modifier_table->{after}};
- return wantarray ? @rval : $rval[0];
- });
- $MODIFIERS{$method} = $modifier_table;
- $method;
- }
-
- sub add_before_modifier {
- my $code = shift;
- my $modifier = shift;
- (exists $MODIFIERS{$code})
- || confess "You must first wrap your method before adding a modifier";
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- (reftype($modifier) && reftype($modifier) eq 'CODE')
- || confess "You must supply a CODE reference for a modifier";
- unshift @{$MODIFIERS{$code}->{before}} => $modifier;
- }
-
- sub add_after_modifier {
- my $code = shift;
- my $modifier = shift;
- (exists $MODIFIERS{$code})
- || confess "You must first wrap your method before adding a modifier";
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- (reftype($modifier) && reftype($modifier) eq 'CODE')
- || confess "You must supply a CODE reference for a modifier";
- push @{$MODIFIERS{$code}->{after}} => $modifier;
- }
-
- {
- my $compile_around_method = sub {{
- my $f1 = pop;
- return $f1 unless @_;
- my $f2 = pop;
- push @_, sub { $f2->( $f1, @_ ) };
- redo;
- }};
-
- sub add_around_modifier {
- my $code = shift;
- my $modifier = shift;
- (exists $MODIFIERS{$code})
- || confess "You must first wrap your method before adding a modifier";
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- (reftype($modifier) && reftype($modifier) eq 'CODE')
- || confess "You must supply a CODE reference for a modifier";
- unshift @{$MODIFIERS{$code}->{around}->{methods}} => $modifier;
- $MODIFIERS{$code}->{around}->{cache} = $compile_around_method->(
- @{$MODIFIERS{$code}->{around}->{methods}},
- $MODIFIERS{$code}->{orig}
- );
- }
- }
+## accessors
+
+sub body { (shift)->{'body'} }
+
+sub associated_metaclass { shift->{'associated_metaclass'} }
+
+sub attach_to_class {
+ my ( $self, $class ) = @_;
+ $self->{associated_metaclass} = $class;
+ weaken($self->{associated_metaclass});
}
-# informational
+sub detach_from_class {
+ my $self = shift;
+ delete $self->{associated_metaclass};
+}
-sub package_name {
- my $code = shift;
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- svref_2object($code)->GV->STASH->NAME;
+sub package_name {
+ my $self = shift;
+ $self->{'package_name'} ||= (Class::MOP::get_code_info($self->body))[0];
}
-sub name {
- my $code = shift;
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- svref_2object($code)->GV->NAME;
+sub name {
+ my $self = shift;
+ $self->{'name'} ||= (Class::MOP::get_code_info($self->body))[1];
}
+sub fully_qualified_name {
+ my $code = shift;
+ $code->package_name . '::' . $code->name;
+}
+
+# NOTE:
+# the Class::MOP bootstrap
+# will create this for us
+# - SL
+# sub clone { ... }
+
1;
__END__
=pod
-=head1 NAME
+=head1 NAME
Class::MOP::Method - Method Meta Object
-=head1 SYNOPSIS
-
- # ... more to come later maybe
-
=head1 DESCRIPTION
-The Method Protocol is very small, since methods in Perl 5 are just
-subroutines within the particular package. Basically all we do is to
-bless the subroutine.
-
-Currently this package is largely unused. Future plans are to provide
-some very simple introspection methods for the methods themselves.
-Suggestions for this are welcome.
+The Method Protocol is very small, since methods in Perl 5 are just
+subroutines within the particular package. We provide a very basic
+introspection interface.
=head1 METHODS
=item B<meta>
-This will return a B<Class::MOP::Class> instance which is related
+This will return a B<Class::MOP::Class> instance which is related
to this class.
=back
=over 4
-=item B<new (&code)>
+=item B<wrap ($code, %params)>
+
+This is the basic constructor, it returns a B<Class::MOP::Method>
+instance which wraps the given C<$code> reference. You can also
+set the C<package_name> and C<name> attributes using the C<%params>.
+If these are not set, then thier accessors will attempt to figure
+it out using the C<Class::MOP::get_code_info> function.
-This simply blesses the C<&code> reference passed to it.
+=item B<clone (%params)>
+
+This will make a copy of the object, allowing you to override
+any values by stuffing them in C<%params>.
=back
=over 4
+=item B<body>
+
+This returns the actual CODE reference of the particular instance.
+
=item B<name>
+This returns the name of the CODE reference.
+
+=item B<associated_metaclass>
+
+The metaclass of the method
+
=item B<package_name>
+This returns the package name that the CODE reference is attached to.
+
+=item B<fully_qualified_name>
+
+This returns the fully qualified name of the CODE reference.
+
=back
-=head1 SEE ALSO
+=head2 Metaclass
+
+=over 4
+
+=item B<attach_to_class>
-http://dirtsimple.org/2005/01/clos-style-method-combination-for.html
+Sets the associated metaclass
-http://www.gigamonkeys.com/book/object-reorientation-generic-functions.html
+=item B<detach_from_class>
-=head1 AUTHOR
+Disassociates the method from the metaclass
+
+=back
+
+=head1 AUTHORS
Stevan Little E<lt>stevan@iinteractive.comE<gt>
=head1 COPYRIGHT AND LICENSE
-Copyright 2006 by Infinity Interactive, Inc.
+Copyright 2006-2008 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
+it under the same terms as Perl itself.
+
+=cut
-=cut
\ No newline at end of file
projects / gitmo/Class-MOP.git / blobdiff