package Mouse::Meta::Module;
-use Mouse::Util qw/:meta get_code_package get_code_ref load_class not_supported/; # enables strict and warnings
+use Mouse::Util qw/:meta/; # enables strict and warnings
use Carp ();
use Scalar::Util ();
my %METAS;
-# XXX: work around a warning "useless use of a constant in void context" in 5.6.2
-if(&Mouse::Util::MOUSE_XS){
+if(Mouse::Util::MOUSE_XS){
# register meta storage for performance
Mouse::Util::__register_metaclass_storage(\%METAS, 0);
*CLONE = sub { Mouse::Util::__register_metaclass_storage(\%METAS, 1) };
}
-sub _metaclass_cache { # DEPRECATED
- my($class, $name) = @_;
- return $METAS{$name};
-}
-
sub initialize {
my($class, $package_name, @args) = @_;
($package_name && !ref($package_name))
|| $class->throw_error("You must pass a package name and it cannot be blessed");
+ if(exists $METAS{$package_name}) {
+ unshift @args, %{ $METAS{$package_name} };
+ }
delete $METAS{$package_name};
return $class->initialize($package_name, @args);
}
}
# Means of accessing all the metaclasses that have
-# been initialized thus far
+# been initialized thus far.
+# The public versions are aliased into Mouse::Util::*.
#sub _get_all_metaclasses { %METAS }
sub _get_all_metaclass_instances { values %METAS }
sub _get_all_metaclass_names { keys %METAS }
sub namespace;
-# The followings are Class::MOP specific methods
-
-#sub version { no strict 'refs'; ${shift->name.'::VERSION'} }
-#sub authority { no strict 'refs'; ${shift->name.'::AUTHORITY'} }
-#sub identifier {
-# my $self = shift;
-# return join '-' => (
-# $self->name,
-# ($self->version || ()),
-# ($self->authority || ()),
-# );
-#}
-
# add_attribute is an abstract method
sub get_attribute_map { # DEPRECATED
- Carp::cluck('get_attribute_map() has been deprecated');
+ Carp::cluck('get_attribute_map() has been deprecated. Use get_attribute_list() and get_attribute() instead');
return $_[0]->{attributes};
}
sub get_attribute_list{ keys %{$_[0]->{attributes}} }
-
-# XXX: for backward compatibility
+# XXX: not completely compatible with Moose
my %foreign = map{ $_ => undef } qw(
Mouse Mouse::Role Mouse::Util Mouse::Util::TypeConstraints
Carp Scalar::Util List::Util
);
-sub _code_is_mine{
-# my($self, $code) = @_;
-
- return !exists $foreign{ get_code_package($_[1]) };
+sub _get_method_body {
+ my($self, $method_name) = @_;
+ my $code = Mouse::Util::get_code_ref($self->{package}, $method_name);
+ return $code && !exists $foreign{ Mouse::Util::get_code_package($code) }
+ ? $code
+ : undef;
}
sub add_method;
sub has_method {
my($self, $method_name) = @_;
-
defined($method_name)
or $self->throw_error('You must define a method name');
- return defined($self->{methods}{$method_name}) || do{
- my $code = get_code_ref($self->{package}, $method_name);
- $code && $self->_code_is_mine($code);
- };
+ return defined( $self->{methods}{$method_name} )
+ || defined( $self->_get_method_body($method_name) );
}
sub get_method_body {
my($self, $method_name) = @_;
-
defined($method_name)
or $self->throw_error('You must define a method name');
- return $self->{methods}{$method_name} ||= do{
- my $code = get_code_ref($self->{package}, $method_name);
- $code && $self->_code_is_mine($code) ? $code : undef;
- };
+ return $self->{methods}{$method_name}
+ ||= $self->_get_method_body($method_name);
}
-sub get_method{
+sub get_method {
my($self, $method_name) = @_;
if(my $code = $self->get_method_body($method_name)){
- my $method_metaclass = $self->method_metaclass;
- load_class($method_metaclass);
-
- return $method_metaclass->wrap(
+ return Mouse::Util::load_class($self->method_metaclass)->wrap(
body => $code,
name => $method_name,
package => $self->name,
return grep { $self->has_method($_) } keys %{ $self->namespace };
}
-{
- my $ANON_SERIAL = 0;
-
- my %IMMORTALS;
-
- sub create {
- my($self, $package_name, %options) = @_;
-
- my $class = ref($self) || $self;
- $self->throw_error('You must pass a package name') if @_ < 2;
+sub _collect_methods { # Mouse specific, used for method modifiers
+ my($meta, @args) = @_;
- my $superclasses;
- if(exists $options{superclasses}){
- if(Mouse::Util::is_a_metarole($self)){
- delete $options{superclasses};
+ my @methods;
+ foreach my $arg(@args){
+ if(my $type = ref $arg){
+ if($type eq 'Regexp'){
+ push @methods, grep { $_ =~ $arg } $meta->get_all_method_names;
+ }
+ elsif($type eq 'ARRAY'){
+ push @methods, @{$arg};
}
else{
- $superclasses = delete $options{superclasses};
- (ref $superclasses eq 'ARRAY')
- || $self->throw_error("You must pass an ARRAY ref of superclasses");
+ my $subname = ( caller(1) )[3];
+ $meta->throw_error(
+ sprintf(
+ 'Methods passed to %s must be provided as a list,'
+ . ' ArrayRef or regular expression, not %s',
+ $subname,
+ $type,
+ )
+ );
}
- }
+ }
+ else{
+ push @methods, $arg;
+ }
+ }
+ return @methods;
+}
- my $attributes = delete $options{attributes};
- if(defined $attributes){
- (ref $attributes eq 'ARRAY' || ref $attributes eq 'HASH')
- || $self->throw_error("You must pass an ARRAY ref of attributes");
- }
- my $methods = delete $options{methods};
- if(defined $methods){
- (ref $methods eq 'HASH')
- || $self->throw_error("You must pass a HASH ref of methods");
- }
- my $roles = delete $options{roles};
- if(defined $roles){
- (ref $roles eq 'ARRAY')
- || $self->throw_error("You must pass an ARRAY ref of roles");
+my $ANON_SERIAL = 0; # anonymous class/role id
+my %IMMORTALS; # immortal anonymous classes
+
+sub create {
+ my($self, $package_name, %options) = @_;
+
+ my $class = ref($self) || $self;
+ $self->throw_error('You must pass a package name') if @_ < 2;
+
+ my $superclasses;
+ if(exists $options{superclasses}){
+ if(Mouse::Util::is_a_metarole($self)){
+ delete $options{superclasses};
}
- my $mortal;
- my $cache_key;
-
- if(!defined $package_name){ # anonymous
- $mortal = !$options{cache};
-
- # anonymous but immortal
- if(!$mortal){
- # something like Super::Class|Super::Class::2=Role|Role::1
- $cache_key = join '=' => (
- join('|', @{$superclasses || []}),
- join('|', sort @{$roles || []}),
- );
- return $IMMORTALS{$cache_key} if exists $IMMORTALS{$cache_key};
- }
- $options{anon_serial_id} = ++$ANON_SERIAL;
- $package_name = $class . '::__ANON__::' . $ANON_SERIAL;
+ else{
+ $superclasses = delete $options{superclasses};
+ (ref $superclasses eq 'ARRAY')
+ || $self->throw_error("You must pass an ARRAY ref of superclasses");
}
+ }
- # instantiate a module
- {
- no strict 'refs';
- ${ $package_name . '::VERSION' } = delete $options{version} if exists $options{version};
- ${ $package_name . '::AUTHORITY' } = delete $options{authority} if exists $options{authority};
+ my $attributes = delete $options{attributes};
+ if(defined $attributes){
+ (ref $attributes eq 'ARRAY' || ref $attributes eq 'HASH')
+ || $self->throw_error("You must pass an ARRAY ref of attributes");
+ }
+ my $methods = delete $options{methods};
+ if(defined $methods){
+ (ref $methods eq 'HASH')
+ || $self->throw_error("You must pass a HASH ref of methods");
+ }
+ my $roles = delete $options{roles};
+ if(defined $roles){
+ (ref $roles eq 'ARRAY')
+ || $self->throw_error("You must pass an ARRAY ref of roles");
+ }
+ my $mortal;
+ my $cache_key;
+
+ if(!defined $package_name){ # anonymous
+ $mortal = !$options{cache};
+
+ # anonymous but immortal
+ if(!$mortal){
+ # something like Super::Class|Super::Class::2=Role|Role::1
+ $cache_key = join '=' => (
+ join('|', @{$superclasses || []}),
+ join('|', sort @{$roles || []}),
+ );
+ return $IMMORTALS{$cache_key} if exists $IMMORTALS{$cache_key};
}
+ $options{anon_serial_id} = ++$ANON_SERIAL;
+ $package_name = $class . '::__ANON__::' . $ANON_SERIAL;
+ }
- my $meta = $self->initialize( $package_name, %options);
-
- Scalar::Util::weaken $METAS{$package_name}
- if $mortal;
-
- $meta->add_method(meta => sub{
- $self->initialize(ref($_[0]) || $_[0]);
- });
-
- $meta->superclasses(@{$superclasses})
- if defined $superclasses;
-
- # NOTE:
- # process attributes first, so that they can
- # install accessors, but locally defined methods
- # can then overwrite them. It is maybe a little odd, but
- # I think this should be the order of things.
- if (defined $attributes) {
- if(ref($attributes) eq 'ARRAY'){
- # array of Mouse::Meta::Attribute
- foreach my $attr (@{$attributes}) {
- $meta->add_attribute($attr);
- }
- }
- else{
- # hash map of name and attribute spec pairs
- while(my($name, $attr) = each %{$attributes}){
- $meta->add_attribute($name => $attr);
- }
+
+ # instantiate a module
+ {
+ no strict 'refs';
+ ${ $package_name . '::VERSION' } = delete $options{version} if exists $options{version};
+ ${ $package_name . '::AUTHORITY' } = delete $options{authority} if exists $options{authority};
+ }
+
+ my $meta = $self->initialize( $package_name, %options);
+
+ Scalar::Util::weaken($METAS{$package_name})
+ if $mortal;
+
+ $meta->add_method(meta => sub {
+ $self->initialize(ref($_[0]) || $_[0]);
+ });
+
+ $meta->superclasses(@{$superclasses})
+ if defined $superclasses;
+
+ # NOTE:
+ # process attributes first, so that they can
+ # install accessors, but locally defined methods
+ # can then overwrite them. It is maybe a little odd, but
+ # I think this should be the order of things.
+ if (defined $attributes) {
+ if(ref($attributes) eq 'ARRAY'){
+ # array of Mouse::Meta::Attribute
+ foreach my $attr (@{$attributes}) {
+ $meta->add_attribute($attr);
}
}
- if (defined $methods) {
- while(my($method_name, $method_body) = each %{$methods}){
- $meta->add_method($method_name, $method_body);
+ else{
+ # hash map of name and attribute spec pairs
+ while(my($name, $attr) = each %{$attributes}){
+ $meta->add_attribute($name => $attr);
}
}
- if (defined $roles){
- Mouse::Util::apply_all_roles($package_name, @{$roles});
- }
-
- if($cache_key){
- $IMMORTALS{$cache_key} = $meta;
+ }
+ if (defined $methods) {
+ while(my($method_name, $method_body) = each %{$methods}){
+ $meta->add_method($method_name, $method_body);
}
+ }
+ if (defined $roles and !$options{in_application_to_instance}){
+ Mouse::Util::apply_all_roles($package_name, @{$roles});
+ }
- return $meta;
+ if($cache_key){
+ $IMMORTALS{$cache_key} = $meta;
}
- sub DESTROY{
- my($self) = @_;
+ return $meta;
+}
- return if $Mouse::Util::in_global_destruction;
+sub DESTROY{
+ my($self) = @_;
- my $serial_id = $self->{anon_serial_id};
+ return if $Mouse::Util::in_global_destruction;
- return if !$serial_id;
+ my $serial_id = $self->{anon_serial_id};
+ return if !$serial_id;
- # @ISA is a magical variable, so we clear it manually.
- @{$self->{superclasses}} = () if exists $self->{superclasses};
+ # XXX: cleaning stash with threads causes panic/SEGV on legacy perls.
+ if(exists $INC{'threads.pm'}) {
+ # (caller)[2] indicates the caller's line number,
+ # which is zero when the current thread is joining (destroying).
+ return if( (caller)[2] == 0);
+ }
- # Then, clear the symbol table hash
- %{$self->namespace} = ();
+ # clean up mortal anonymous class stuff
- my $name = $self->name;
- delete $METAS{$name};
+ # @ISA is a magical variable, so we must clear it manually.
+ @{$self->{superclasses}} = () if exists $self->{superclasses};
- $name =~ s/ $serial_id \z//xms;
+ # Then, clear the symbol table hash
+ %{$self->namespace} = ();
- no strict 'refs';
- delete ${$name}{ $serial_id . '::' };
+ my $name = $self->name;
+ delete $METAS{$name};
- return;
- }
+ $name =~ s/ $serial_id \z//xms;
+ no strict 'refs';
+ delete ${$name}{ $serial_id . '::' };
+ return;
}
-sub throw_error{
- my($class, $message, %args) = @_;
-
- local $Carp::CarpLevel = $Carp::CarpLevel + 1 + ($args{depth} || 0);
- local $Carp::MaxArgNums = 20; # default is 8, usually we use named args which gets messier though
-
- if(exists $args{longmess} && !$args{longmess}){ # intentionaly longmess => 0
- Carp::croak($message);
- }
- else{
- Carp::confess($message);
- }
-}
1;
-
__END__
=head1 NAME
-Mouse::Meta::Module - The base class for Mouse::Meta::Class and Mouse::Meta::Role
+Mouse::Meta::Module - The common base class of Mouse::Meta::Class and Mouse::Meta::Role
=head1 VERSION
-This document describes Mouse version 0.40_09
+This document describes Mouse version 0.95
+
+=head1 DESCRIPTION
+
+This class is an abstract base class of meta classes and meta roles.
=head1 SEE ALSO
projects / gitmo/Mouse.git / blobdiff