use Scalar::Util 'blessed', 'reftype';
use Carp 'confess';
-our $VERSION = '0.89';
+our $VERSION = '0.98';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
-use base 'Class::MOP::Object';
+use base 'Class::MOP::Object', 'Class::MOP::Mixin::HasMethods';
# creation ...
'package' => $package_name,
%options,
});
-
Class::MOP::store_metaclass_by_name($package_name, $meta);
return $meta;
my %options = @args;
my $package_name = delete $options{package};
- (defined $package_name && $package_name && !blessed($package_name))
- || confess "You must pass a package name and it cannot be blessed";
+ (defined $package_name && $package_name
+ && (!blessed $package_name || $package_name->isa('Class::MOP::Package')))
+ || confess "You must pass a package name or an existing Class::MOP::Package instance";
+
+ $package_name = $package_name->name
+ if blessed $package_name;
Class::MOP::remove_metaclass_by_name($package_name);
# ... these functions have to touch the symbol table itself,.. yuk
+sub add_package_symbol {
+ my ($self, $variable, $initial_value) = @_;
+
+ my ($name, $sigil, $type) = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
+
+ my $pkg = $self->{'package'};
+
+ no strict 'refs';
+ no warnings 'redefine', 'misc', 'prototype';
+ *{$pkg . '::' . $name} = ref $initial_value ? $initial_value : \$initial_value;
+}
+
sub remove_package_glob {
my ($self, $name) = @_;
no strict 'refs';
delete ${$self->name . '::'}{$name};
}
+# ... these functions deal with stuff on the namespace level
+
+sub has_package_symbol {
+ my ( $self, $variable ) = @_;
+
+ my ( $name, $sigil, $type )
+ = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
+
+ my $namespace = $self->namespace;
+
+ return 0 unless exists $namespace->{$name};
+
+ my $entry_ref = \$namespace->{$name};
+ if ( reftype($entry_ref) eq 'GLOB' ) {
+ if ( $type eq 'SCALAR' ) {
+ return defined( ${ *{$entry_ref}{SCALAR} } );
+ }
+ else {
+ return defined( *{$entry_ref}{$type} );
+ }
+ }
+ else {
+
+ # a symbol table entry can be -1 (stub), string (stub with prototype),
+ # or reference (constant)
+ return $type eq 'CODE';
+ }
+}
+
+sub get_package_symbol {
+ my ($self, $variable) = @_;
+
+ my ($name, $sigil, $type) = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
+
+ my $namespace = $self->namespace;
+
+ # FIXME
+ $self->add_package_symbol($variable)
+ unless exists $namespace->{$name};
+
+ my $entry_ref = \$namespace->{$name};
+
+ if ( ref($entry_ref) eq 'GLOB' ) {
+ return *{$entry_ref}{$type};
+ }
+ else {
+ if ( $type eq 'CODE' ) {
+ no strict 'refs';
+ return \&{ $self->name . '::' . $name };
+ }
+ else {
+ return undef;
+ }
+ }
+}
+
sub remove_package_symbol {
my ($self, $variable) = @_;
represents specified package. If an existing metaclass object exists
for the package, that will be returned instead.
-=item B<< Class::MOP::Package->reinitialize($package_name) >>
+=item B<< Class::MOP::Package->reinitialize($package) >>
This method forcibly removes any existing metaclass for the package
-before calling C<initialize>
+before calling C<initialize>. In contrast to C<initialize>, you may
+also pass an existing C<Class::MOP::Package> instance instead of just
+a package name as C<$package>.
Do not call this unless you know what you are doing.
hash reference. The keys are glob names and the values are references
to the value for that name.
+=back
+
+=head2 Method introspection and creation
+
+These methods allow you to introspect a class's methods, as well as
+add, remove, or change methods.
+
+Determining what is truly a method in a Perl 5 class requires some
+heuristics (aka guessing).
+
+Methods defined outside the package with a fully qualified name (C<sub
+Package::name { ... }>) will be included. Similarly, methods named
+with a fully qualified name using L<Sub::Name> are also included.
+
+However, we attempt to ignore imported functions.
+
+Ultimately, we are using heuristics to determine what truly is a
+method in a class, and these heuristics may get the wrong answer in
+some edge cases. However, for most "normal" cases the heuristics work
+correctly.
+
+=over 4
+
+=item B<< $metapackage->get_method($method_name) >>
+
+This will return a L<Class::MOP::Method> for the specified
+C<$method_name>. If the class does not have the specified method, it
+returns C<undef>
+
+=item B<< $metapackage->has_method($method_name) >>
+
+Returns a boolean indicating whether or not the class defines the
+named method. It does not include methods inherited from parent
+classes.
+
+=item B<< $metapackage->get_method_list >>
+
+This will return a list of method I<names> for all methods defined in
+this class.
+
+=item B<< $metapackage->add_method($method_name, $method) >>
+
+This method takes a method name and a subroutine reference, and adds
+the method to the class.
+
+The subroutine reference can be a L<Class::MOP::Method>, and you are
+strongly encouraged to pass a meta method object instead of a code
+reference. If you do so, that object gets stored as part of the
+class's method map directly. If not, the meta information will have to
+be recreated later, and may be incorrect.
+
+If you provide a method object, this method will clone that object if
+the object's package name does not match the class name. This lets us
+track the original source of any methods added from other classes
+(notably Moose roles).
+
+=item B<< $metapackage->remove_method($method_name) >>
+
+Remove the named method from the class. This method returns the
+L<Class::MOP::Method> object for the method.
+
+=item B<< $metapackage->method_metaclass >>
+
+Returns the class name of the method metaclass, see
+L<Class::MOP::Method> for more information on the method metaclass.
+
+=item B<< $metapackage->wrapped_method_metaclass >>
+
+Returns the class name of the wrapped method metaclass, see
+L<Class::MOP::Method::Wrapped> for more information on the wrapped
+method metaclass.
+
=item B<< Class::MOP::Package->meta >>
This will return a L<Class::MOP::Class> instance for this class.
=head1 COPYRIGHT AND LICENSE
-Copyright 2006-2009 by Infinity Interactive, Inc.
+Copyright 2006-2010 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
projects / gitmo/Class-MOP.git / blobdiff