X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FClass%2FMOP%2FPackage.pm;h=3020727d0c6eb3754f6cde4956a74e5e502a1ba8;hb=9195ddff0447e2e618ab3b227aeb3574f6c8cb17;hp=2911d2e5f4bb9fdaee16130ab837756b0403e8e5;hpb=c46b802b9f10829ddce24dbf3fb81d5319f8be8f;p=gitmo%2FClass-MOP.git
diff --git a/lib/Class/MOP/Package.pm b/lib/Class/MOP/Package.pm
index 2911d2e..3020727 100644
--- a/lib/Class/MOP/Package.pm
+++ b/lib/Class/MOP/Package.pm
@@ -7,7 +7,10 @@ use warnings;
use Scalar::Util 'blessed';
use Carp 'confess';
-our $VERSION = '0.02';
+our $VERSION = '0.07';
+our $AUTHORITY = 'cpan:STEVAN';
+
+use base 'Class::MOP::Object';
# introspection
@@ -25,8 +28,15 @@ sub initialize {
# until we can bootstrap it
no strict 'refs';
return bless {
- '$:package' => $package_name,
- '%:namespace' => \%{$package_name . '::'},
+ '$!package' => $package_name,
+ # NOTE:
+ # because of issues with the Perl API
+ # to the typeglob in some versions, we
+ # need to just always grab a new
+ # reference to the hash in the accessor.
+ # Ideally we could just store a ref and
+ # it would Just Work, but oh well :\
+ '%!namespace' => \undef,
} => $class;
}
@@ -36,8 +46,18 @@ sub initialize {
# all these attribute readers will be bootstrapped
# away in the Class::MOP bootstrap section
-sub name { $_[0]->{'$:package'} }
-sub namespace { $_[0]->{'%:namespace'} }
+sub name { $_[0]->{'$!package'} }
+sub namespace {
+ # NOTE:
+ # because of issues with the Perl API
+ # to the typeglob in some versions, we
+ # need to just always grab a new
+ # reference to the hash here. Ideally
+ # we could just store a ref and it would
+ # Just Work, but oh well :\
+ no strict 'refs';
+ \%{$_[0]->name . '::'}
+}
# utility methods
@@ -77,8 +97,8 @@ sub add_package_symbol {
my ($name, $sigil, $type) = $self->_deconstruct_variable_name($variable);
no strict 'refs';
- no warnings 'redefine', 'misc';
- *{$self->name . '::' . $name} = ref $initial_value ? $initial_value : \$initial_value;
+ no warnings 'redefine', 'misc';
+ *{$self->name . '::' . $name} = ref $initial_value ? $initial_value : \$initial_value;
}
sub remove_package_glob {
@@ -93,9 +113,28 @@ sub has_package_symbol {
my ($self, $variable) = @_;
my ($name, $sigil, $type) = $self->_deconstruct_variable_name($variable);
-
+
return 0 unless exists $self->namespace->{$name};
- defined *{$self->namespace->{$name}}{$type} ? 1 : 0;
+
+ # FIXME:
+ # For some really stupid reason
+ # a typeglob will have a default
+ # value of \undef in the SCALAR
+ # slot, so we need to work around
+ # this. Which of course means that
+ # if you put \undef in your scalar
+ # then this is broken.
+
+ if (ref($self->namespace->{$name}) eq 'SCALAR') {
+ return ($type eq 'CODE' ? 1 : 0);
+ }
+ elsif ($type eq 'SCALAR') {
+ my $val = *{$self->namespace->{$name}}{$type};
+ return defined(${$val}) ? 1 : 0;
+ }
+ else {
+ defined(*{$self->namespace->{$name}}{$type}) ? 1 : 0;
+ }
}
sub get_package_symbol {
@@ -105,7 +144,19 @@ sub get_package_symbol {
$self->add_package_symbol($variable)
unless exists $self->namespace->{$name};
- return *{$self->namespace->{$name}}{$type};
+
+ if (ref($self->namespace->{$name}) eq 'SCALAR') {
+ if ($type eq 'CODE') {
+ no strict 'refs';
+ return \&{$self->name.'::'.$name};
+ }
+ else {
+ return undef;
+ }
+ }
+ else {
+ return *{$self->namespace->{$name}}{$type};
+ }
}
sub remove_package_symbol {
@@ -151,8 +202,18 @@ sub remove_package_symbol {
}
sub list_all_package_symbols {
- my ($self) = @_;
- return keys %{$self->namespace};
+ my ($self, $type_filter) = @_;
+ return keys %{$self->namespace} unless defined $type_filter;
+ # NOTE:
+ # or we can filter based on
+ # type (SCALAR|ARRAY|HASH|CODE)
+ my $namespace = $self->namespace;
+ return grep {
+ (ref($namespace->{$_})
+ ? (ref($namespace->{$_}) eq 'SCALAR' && $type_filter eq 'CODE')
+ : (ref(\$namespace->{$_}) eq 'GLOB'
+ && defined(*{$namespace->{$_}}{$type_filter})));
+ } keys %{$namespace};
}
1;
@@ -175,23 +236,53 @@ Class::MOP::Package - Package Meta Object
=item B
-=item B
+=item B
=item B
+This is a read-only attribute which returns the package name for the
+given instance.
+
=item B
-=item B
+This returns a HASH reference to the symbol table. The keys of the
+HASH are the symbol names, and the values are typeglob references.
+
+=item B
+
+Given a C<$variable_name>, which must contain a leading sigil, this
+method will create that variable within the package which houses the
+class. It also takes an optional C<$initial_value>, which must be a
+reference of the same type as the sigil of the C<$variable_name>
+implies.
+
+=item B
-=item B
+This will return a reference to the package variable in
+C<$variable_name>.
-=item B
+=item B
-=item B
+Returns true (C<1>) if there is a package variable defined for
+C<$variable_name>, and false (C<0>) otherwise.
-=item B
+=item B
-=item B
+This will attempt to remove the package variable at C<$variable_name>.
+
+=item B
+
+This will attempt to remove the entire typeglob associated with
+C<$glob_name> from the package.
+
+=item B
+
+This will list all the glob names associated with the current package.
+By inspecting the globs returned you can discern all the variables in
+the package.
+
+By passing a C<$type_filter>, you can limit the list to only those
+which match the filter (either SCALAR, ARRAY, HASH or CODE).
=back
@@ -199,15 +290,13 @@ Class::MOP::Package - Package Meta Object
Stevan Little Estevan@iinteractive.comE
-Yuval Kogman Enothingmuch@woobling.comE
-
=head1 COPYRIGHT AND LICENSE
-Copyright 2006 by Infinity Interactive, Inc.
+Copyright 2006, 2007 by Infinity Interactive, Inc.
L
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
-=cut
\ No newline at end of file
+=cut