use strict;
use warnings;
+use B;
use Scalar::Util 'blessed';
use Carp 'confess';
-our $VERSION = '0.09';
+our $VERSION = '0.77';
+$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
use base 'Class::MOP::Object';
# creation ...
sub initialize {
- my $class = shift;
- my $package_name = shift;
+ my ( $class, @args ) = @_;
+
+ unshift @args, "package" if @args % 2;
+
+ my %options = @args;
+ my $package_name = $options{package};
+
+
# we hand-construct the class
# until we can bootstrap it
- no strict 'refs';
- return bless {
- '$!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;
+ if ( my $meta = Class::MOP::get_metaclass_by_name($package_name) ) {
+ return $meta;
+ } else {
+ my $meta = ( ref $class || $class )->_new({
+ 'package' => $package_name,
+ %options,
+ });
+
+ Class::MOP::store_metaclass_by_name($package_name, $meta);
+
+ return $meta;
+ }
+}
+
+sub reinitialize {
+ my ( $class, @args ) = @_;
+
+ unshift @args, "package" if @args % 2;
+
+ 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";
+
+ Class::MOP::remove_metaclass_by_name($package_name);
+
+ $class->initialize($package_name, %options); # call with first arg form for compat
+}
+
+sub _new {
+ my $class = shift;
+ my $options = @_ == 1 ? $_[0] : {@_};
+
+ # 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 :\
+ $options->{namespace} ||= \undef;
+
+ bless $options, $class;
}
# Attributes
# all these attribute readers will be bootstrapped
# away in the Class::MOP bootstrap section
-sub name { $_[0]->{'$!package'} }
+sub name { $_[0]->{'package'} }
sub namespace {
# NOTE:
# because of issues with the Perl API
# we could just store a ref and it would
# Just Work, but oh well :\
no strict 'refs';
- \%{$_[0]->name . '::'}
+ \%{$_[0]->{'package'} . '::'}
}
# utility methods
sub add_package_symbol {
my ($self, $variable, $initial_value) = @_;
- my ($name, $sigil, $type) = $self->_deconstruct_variable_name($variable);
+ my ($name, $sigil, $type) = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
+
+ my $pkg = $self->{'package'};
no strict 'refs';
no warnings 'redefine', 'misc';
- *{$self->name . '::' . $name} = ref $initial_value ? $initial_value : \$initial_value;
+ *{$pkg . '::' . $name} = ref $initial_value ? $initial_value : \$initial_value;
}
sub remove_package_glob {
sub has_package_symbol {
my ($self, $variable) = @_;
- my ($name, $sigil, $type) = $self->_deconstruct_variable_name($variable);
+ my ($name, $sigil, $type) = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
my $namespace = $self->namespace;
# then this is broken.
if (ref($namespace->{$name}) eq 'SCALAR') {
- return ($type eq 'CODE' ? 1 : 0);
+ return ($type eq 'CODE');
}
elsif ($type eq 'SCALAR') {
my $val = *{$namespace->{$name}}{$type};
- return defined(${$val}) ? 1 : 0;
+ return defined(${$val});
}
else {
- defined(*{$namespace->{$name}}{$type}) ? 1 : 0;
+ defined(*{$namespace->{$name}}{$type});
}
}
sub get_package_symbol {
my ($self, $variable) = @_;
- my ($name, $sigil, $type) = $self->_deconstruct_variable_name($variable);
+ my ($name, $sigil, $type) = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
my $namespace = $self->namespace;
sub remove_package_symbol {
my ($self, $variable) = @_;
- my ($name, $sigil, $type) = $self->_deconstruct_variable_name($variable);
+ my ($name, $sigil, $type) = ref $variable eq 'HASH'
+ ? @{$variable}{qw[name sigil type]}
+ : $self->_deconstruct_variable_name($variable);
# FIXME:
# no doubt this is grossly inefficient and
# could be done much easier and faster in XS
+ my ($scalar_desc, $array_desc, $hash_desc, $code_desc) = (
+ { sigil => '$', type => 'SCALAR', name => $name },
+ { sigil => '@', type => 'ARRAY', name => $name },
+ { sigil => '%', type => 'HASH', name => $name },
+ { sigil => '&', type => 'CODE', name => $name },
+ );
+
my ($scalar, $array, $hash, $code);
if ($type eq 'SCALAR') {
- $array = $self->get_package_symbol('@' . $name) if $self->has_package_symbol('@' . $name);
- $hash = $self->get_package_symbol('%' . $name) if $self->has_package_symbol('%' . $name);
- $code = $self->get_package_symbol('&' . $name) if $self->has_package_symbol('&' . $name);
+ $array = $self->get_package_symbol($array_desc) if $self->has_package_symbol($array_desc);
+ $hash = $self->get_package_symbol($hash_desc) if $self->has_package_symbol($hash_desc);
+ $code = $self->get_package_symbol($code_desc) if $self->has_package_symbol($code_desc);
}
elsif ($type eq 'ARRAY') {
- $scalar = $self->get_package_symbol('$' . $name) if $self->has_package_symbol('$' . $name);
- $hash = $self->get_package_symbol('%' . $name) if $self->has_package_symbol('%' . $name);
- $code = $self->get_package_symbol('&' . $name) if $self->has_package_symbol('&' . $name);
+ $scalar = $self->get_package_symbol($scalar_desc) if $self->has_package_symbol($scalar_desc);
+ $hash = $self->get_package_symbol($hash_desc) if $self->has_package_symbol($hash_desc);
+ $code = $self->get_package_symbol($code_desc) if $self->has_package_symbol($code_desc);
}
elsif ($type eq 'HASH') {
- $scalar = $self->get_package_symbol('$' . $name) if $self->has_package_symbol('$' . $name);
- $array = $self->get_package_symbol('@' . $name) if $self->has_package_symbol('@' . $name);
- $code = $self->get_package_symbol('&' . $name) if $self->has_package_symbol('&' . $name);
+ $scalar = $self->get_package_symbol($scalar_desc) if $self->has_package_symbol($scalar_desc);
+ $array = $self->get_package_symbol($array_desc) if $self->has_package_symbol($array_desc);
+ $code = $self->get_package_symbol($code_desc) if $self->has_package_symbol($code_desc);
}
elsif ($type eq 'CODE') {
- $scalar = $self->get_package_symbol('$' . $name) if $self->has_package_symbol('$' . $name);
- $array = $self->get_package_symbol('@' . $name) if $self->has_package_symbol('@' . $name);
- $hash = $self->get_package_symbol('%' . $name) if $self->has_package_symbol('%' . $name);
+ $scalar = $self->get_package_symbol($scalar_desc) if $self->has_package_symbol($scalar_desc);
+ $array = $self->get_package_symbol($array_desc) if $self->has_package_symbol($array_desc);
+ $hash = $self->get_package_symbol($hash_desc) if $self->has_package_symbol($hash_desc);
}
else {
confess "This should never ever ever happen";
$self->remove_package_glob($name);
- $self->add_package_symbol(('$' . $name) => $scalar) if defined $scalar;
- $self->add_package_symbol(('@' . $name) => $array) if defined $array;
- $self->add_package_symbol(('%' . $name) => $hash) if defined $hash;
- $self->add_package_symbol(('&' . $name) => $code) if defined $code;
+ $self->add_package_symbol($scalar_desc => $scalar) if defined $scalar;
+ $self->add_package_symbol($array_desc => $array) if defined $array;
+ $self->add_package_symbol($hash_desc => $hash) if defined $hash;
+ $self->add_package_symbol($code_desc => $code) if defined $code;
}
sub list_all_package_symbols {
my ($self, $type_filter) = @_;
- return keys %{$self->namespace} unless defined $type_filter;
+
+ my $namespace = $self->namespace;
+ return keys %{$namespace} unless defined $type_filter;
+
# NOTE:
# or we can filter based on
# type (SCALAR|ARRAY|HASH|CODE)
- my $namespace = $self->namespace;
- return grep {
+ if ( $type_filter eq 'CODE' ) {
+ return grep {
(ref($namespace->{$_})
- ? (ref($namespace->{$_}) eq 'SCALAR' && $type_filter eq 'CODE')
- : (ref(\$namespace->{$_}) eq 'GLOB'
- && defined(*{$namespace->{$_}}{$type_filter})));
- } keys %{$namespace};
+ ? (ref($namespace->{$_}) eq 'SCALAR')
+ : (ref(\$namespace->{$_}) eq 'GLOB'
+ && defined(*{$namespace->{$_}}{CODE})));
+ } keys %{$namespace};
+ } else {
+ return grep { *{$namespace->{$_}}{$type_filter} } keys %{$namespace};
+ }
}
sub get_all_package_symbols {
my ($self, $type_filter) = @_;
- return %{$self->namespace} unless defined $type_filter;
- # NOTE:
- # or we can filter based on
- # type (SCALAR|ARRAY|HASH|CODE)
+
+ die "Cannot call get_all_package_symbols as a class method"
+ unless ref $self;
+
my $namespace = $self->namespace;
- no strict 'refs';
- return map {
- $_ => (ref($namespace->{$_}) eq 'SCALAR'
- ? ($type_filter eq 'CODE' ? \&{$self->name . '::' . $_} : undef)
- : *{$namespace->{$_}}{$type_filter})
- } grep {
- (ref($namespace->{$_})
- ? (ref($namespace->{$_}) eq 'SCALAR' && $type_filter eq 'CODE')
- : (ref(\$namespace->{$_}) eq 'GLOB'
- && defined(*{$namespace->{$_}}{$type_filter})));
- } keys %{$namespace};
+
+ return $namespace unless defined $type_filter;
+
+ my %ret;
+ # for some reason this nasty impl is orders of magnitude faster than a clean version
+ if ( $type_filter eq 'CODE' ) {
+ my $pkg;
+ no strict 'refs';
+ %ret = map {
+ (ref($namespace->{$_})
+ ? ( $_ => \&{$pkg ||= $self->name . "::$_"} )
+ : ( ref \$namespace->{$_} eq 'GLOB' # don't use {CODE} unless it's really a glob to prevent stringification of stubs
+ && (*{$namespace->{$_}}{CODE}) # the extra parents prevent breakage on 5.8.2
+ ? ( $_ => *{$namespace->{$_}}{CODE} )
+ : (do {
+ my $sym = B::svref_2object(\$namespace->{$_});
+ my $svt = ref $sym if $sym;
+ ($sym && ($svt eq 'B::PV' || $svt eq 'B::IV'))
+ ? ($_ => ($pkg ||= $self->name)->can($_))
+ : () }) ) )
+ } keys %$namespace;
+ } else {
+ %ret = map {
+ $_ => *{$namespace->{$_}}{$type_filter}
+ } grep {
+ !ref($namespace->{$_}) && *{$namespace->{$_}}{$type_filter}
+ } keys %$namespace;
+ }
+
+ return \%ret;
}
1;
L<Class::MOP::Class> and provides all of the symbol table
introspection methods.
+=head1 INHERITANCE
+
+B<Class::MOP::Package> is a subclass of L<Class::MOP::Object>
+
=head1 METHODS
=over 4
This will initialize a Class::MOP::Package instance which represents
the package of C<$package_name>.
+=item B<reinitialize ($package_name, %options)>
+
+This removes the old metaclass, and creates a new one in it's place.
+Do B<not> use this unless you really know what you are doing, it could
+very easily make a very large mess of your program.
+
=item B<name>
This is a read-only attribute which returns the package name for the
projects / gitmo/Class-MOP.git / blobdiff