use strict;
use warnings;
-use Carp 'confess';
+use Devel::GlobalDestruction ();
use Scalar::Util 'blessed', 'weaken';
+use Try::Tiny ();
-our $VERSION = '0.55_04';
+our $VERSION = '1.09';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
use base 'Moose::Meta::Method',
- 'Class::MOP::Method::Generated';
+ 'Class::MOP::Method::Inlined';
sub new {
my $class = shift;
my %options = @_;
-
- (exists $options{options} && ref $options{options} eq 'HASH')
- || confess "You must pass a hash of options";
-
+
+ (ref $options{options} eq 'HASH')
+ || $class->throw_error("You must pass a hash of options", data => $options{options});
+
($options{package_name} && $options{name})
- || confess "You must supply the package_name and name parameters $Class::MOP::Method::UPGRADE_ERROR_TEXT";
-
+ || $class->throw_error("You must supply the package_name and name parameters $Class::MOP::Method::UPGRADE_ERROR_TEXT");
+
my $self = bless {
# from our superclass
- 'body' => undef,
+ 'body' => undef,
'package_name' => $options{package_name},
- 'name' => $options{name},
+ 'name' => $options{name},
# ...
- 'options' => $options{options},
+ 'options' => $options{options},
'associated_metaclass' => $options{metaclass},
} => $class;
- # we don't want this creating
- # a cycle in the code, if not
+ # we don't want this creating
+ # a cycle in the code, if not
# needed
- weaken($self->{'associated_metaclass'});
+ weaken($self->{'associated_metaclass'});
- $self->initialize_body;
+ $self->_initialize_body;
- return $self;
+ return $self;
}
-## accessors
+## accessors
sub options { (shift)->{'options'} }
-sub associated_metaclass { (shift)->{'associated_metaclass'} }
## method
-sub is_needed {
- my $self = shift;
- # if called as a class method
- # then must pass in a class name
- unless (blessed $self) {
- (blessed $_[0] && $_[0]->isa('Class::MOP::Class'))
- || confess "When calling is_needed as a class method you must pass a class name";
- return $_[0]->meta->can('DEMOLISH');
- }
- defined $self->{'body'} ? 1 : 0
+sub is_needed {
+ my $self = shift;
+ my $metaclass = shift;
+
+ ( blessed $metaclass && $metaclass->isa('Class::MOP::Class') )
+ || $self->throw_error(
+ "The is_needed method expected a metaclass object as its arugment");
+
+ return $metaclass->find_method_by_name("DEMOLISHALL");
}
sub initialize_body {
+ Carp::cluck('The initialize_body method has been made private.'
+ . " The public version is deprecated and will be removed in a future release.\n");
+ shift->_initialize_body;
+}
+
+sub _initialize_body {
my $self = shift;
# TODO:
- # the %options should also include a both
- # a call 'initializer' and call 'SUPER::'
- # options, which should cover approx 90%
- # of the possible use cases (even if it
- # requires some adaption on the part of
+ # the %options should also include a both
+ # a call 'initializer' and call 'SUPER::'
+ # options, which should cover approx 90%
+ # of the possible use cases (even if it
+ # requires some adaption on the part of
# the author, after all, nothing is free)
-
+
my @DEMOLISH_methods = $self->associated_metaclass->find_all_methods_by_name('DEMOLISH');
-
- return unless @DEMOLISH_methods;
-
- my $source = 'sub {';
-
- my @DEMOLISH_calls;
- foreach my $method (@DEMOLISH_methods) {
- push @DEMOLISH_calls => '$_[0]->' . $method->{class} . '::DEMOLISH()';
- }
-
- $source .= join ";\n" => @DEMOLISH_calls;
-
- $source .= ";\n" . '}';
- warn $source if $self->options->{debug};
-
- my $code;
- {
- $code = eval $source;
- confess "Could not eval the destructor :\n\n$source\n\nbecause :\n\n$@" if $@;
+
+ my $source;
+ $source = 'sub {' . "\n";
+ $source .= 'my $self = shift;' . "\n";
+ $source .= 'return $self->Moose::Object::DESTROY(@_)' . "\n";
+ $source .= ' if Scalar::Util::blessed($self) ne ';
+ $source .= "'" . $self->associated_metaclass->name . "'";
+ $source .= ';' . "\n";
+
+ if ( @DEMOLISH_methods ) {
+ $source .= 'local $?;' . "\n";
+
+ $source .= 'my $in_global_destruction = Devel::GlobalDestruction::in_global_destruction;' . "\n";
+
+ $source .= 'Try::Tiny::try {' . "\n";
+
+ $source .= '$self->' . $_->{class} . '::DEMOLISH($in_global_destruction);' . "\n"
+ for @DEMOLISH_methods;
+
+ $source .= '}';
+ $source .= q[ Try::Tiny::catch { no warnings 'misc'; die $_ };] . "\n";
+ $source .= 'return;' . "\n";
+
}
+
+ $source .= '}';
+
+ warn $source if $self->options->{debug};
+
+ my ( $code, $e ) = $self->_compile_code(
+ environment => {},
+ code => $source,
+ );
+
+ $self->throw_error(
+ "Could not eval the destructor :\n\n$source\n\nbecause :\n\n$e",
+ error => $e, data => $source )
+ if $e;
+
$self->{'body'} = $code;
}
=pod
-=head1 NAME
+=head1 NAME
Moose::Meta::Method::Destructor - Method Meta Object for destructors
=head1 DESCRIPTION
-This is a subclass of L<Class::MOP::Method> which handles
-constructing an approprate Destructor method. This is primarily
-used in the making of immutable metaclasses, otherwise it is
-not particularly useful.
+This class is a subclass of L<Class::MOP::Class::Generated> that
+provides Moose-specific functionality for inlining destructors.
+
+To understand this class, you should read the the
+L<Class::MOP::Class::Generated> documentation as well.
+
+=head1 INHERITANCE
+
+C<Moose::Meta::Method::Destructor> is a subclass of
+L<Moose::Meta::Method> I<and> L<Class::MOP::Method::Generated>.
=head1 METHODS
=over 4
-=item B<new>
+=item B<< Moose::Meta;:Method::Destructor->new(%options) >>
-=item B<attributes>
+This constructs a new object. It accepts the following options:
-=item B<meta_instance>
+=over 8
-=item B<options>
+=item * package_name
-=item B<is_needed>
+The package for the class in which the destructor is being
+inlined. This option is required.
-=item B<initialize_body>
+=item * name
-=item B<associated_metaclass>
+The name of the destructor method. This option is required.
+
+=item * metaclass
+
+The metaclass for the class this destructor belongs to. This is
+optional, as it can be set later by calling C<<
+$metamethod->attach_to_class >>.
+
+=back
+
+=item B<< Moose::Meta;:Method::Destructor->is_needed($metaclass) >>
+
+Given a L<Moose::Meta::Class> object, this method returns a boolean
+indicating whether the class needs a destructor. If the class or any
+of its parents defines a C<DEMOLISH> method, it needs a destructor.
=back
+=head1 BUGS
+
+See L<Moose/BUGS> for details on reporting bugs.
+
=head1 AUTHORS
Stevan Little E<lt>stevan@iinteractive.comE<gt>
=head1 COPYRIGHT AND LICENSE
-Copyright 2006-2008 by Infinity Interactive, Inc.
+Copyright 2006-2010 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
projects / gitmo/Moose.git / blobdiff