package Mouse::Util;
-use strict;
-use warnings;
-
-use Exporter;
+use Mouse::Exporter; # enables strict and warnings
use Carp qw(confess);
+use Scalar::Util qw(blessed);
use B ();
use constant _MOUSE_VERBOSE => !!$ENV{MOUSE_VERBOSE};
-our @ISA = qw(Exporter);
-our @EXPORT_OK = qw(
- find_meta
- does_role
- resolve_metaclass_alias
- apply_all_roles
- english_list
+Mouse::Exporter->setup_import_methods(
+ as_is => [qw(
+ find_meta
+ does_role
+ resolve_metaclass_alias
+ apply_all_roles
+ english_list
- load_class
- is_class_loaded
+ load_class
+ is_class_loaded
- get_linear_isa
- get_code_info
+ get_linear_isa
+ get_code_info
- get_code_package
+ get_code_package
- not_supported
+ not_supported
- does meta dump
- _MOUSE_VERBOSE
-);
-our %EXPORT_TAGS = (
- all => \@EXPORT_OK,
- meta => [qw(does meta dump _MOUSE_VERBOSE)],
+ does meta dump
+ _MOUSE_VERBOSE
+ )],
+ groups => {
+ default => [], # export no functions by default
+
+ # The ':meta' group is 'use metaclass' for Mouse
+ meta => [qw(does meta dump _MOUSE_VERBOSE)],
+ },
);
# aliases as public APIs
-
-# it must be 'require', because Mouse::Meta::Module depends on Mouse::Util
+# it must be 'require', not 'use', because Mouse::Meta::Module depends on Mouse::Util
require Mouse::Meta::Module; # for the entities of metaclass cache utilities
BEGIN {
}
# taken from Class/MOP.pm
+my %is_class_loaded_cache;
sub _try_load_one_class {
my $class = shift;
confess "Invalid class name ($display)";
}
- return if is_class_loaded($class);
+ return undef if $is_class_loaded_cache{$class} ||= is_class_loaded($class);
my $file = $class . '.pm';
$file =~ s{::}{/}g;
return 1;
}
-my %is_class_loaded_cache;
+
sub is_class_loaded {
my $class = shift;
return 0 if ref($class) || !defined($class) || !length($class);
- return 1 if $is_class_loaded_cache{$class};
-
# walk the symbol table tree to avoid autovififying
# \*{${main::}{"Foo::"}} == \*main::Foo::
}
# check for $VERSION or @ISA
- return ++$is_class_loaded_cache{$class} if exists $pack->{VERSION}
+ return 1 if exists $pack->{VERSION}
&& defined *{$pack->{VERSION}}{SCALAR} && defined ${ $pack->{VERSION} };
- return ++$is_class_loaded_cache{$class} if exists $pack->{ISA}
+ return 1 if exists $pack->{ISA}
&& defined *{$pack->{ISA}}{ARRAY} && @{ $pack->{ISA} } != 0;
# check for any method
foreach my $name( keys %{$pack} ) {
my $entry = \$pack->{$name};
- return ++$is_class_loaded_cache{$class} if ref($entry) ne 'GLOB' || defined *{$entry}{CODE};
+ return 1 if ref($entry) ne 'GLOB' || defined *{$entry}{CODE};
}
# fail
sub apply_all_roles {
- my $meta = Mouse::Meta::Class->initialize(shift);
+ my $applicant = blessed($_[0]) ? shift : Mouse::Meta::Class->initialize(shift);
my @roles;
my $max = scalar(@_);
for (my $i = 0; $i < $max ; $i++) {
if ($i + 1 < $max && ref($_[$i + 1])) {
- push @roles, [ $_[$i++] => $_[$i] ];
+ push @roles, [ $_[$i] => $_[++$i] ];
} else {
- push @roles, [ $_[$i] => undef ];
+ push @roles, [ $_[$i] => undef ];
}
my $role_name = $roles[-1][0];
load_class($role_name);
- ( $role_name->can('meta') && $role_name->meta->isa('Mouse::Meta::Role') )
- || $meta->throw_error("You can only consume roles, $role_name(".$role_name->meta.") is not a Mouse role");
+
+ my $metarole = get_metaclass_by_name($role_name);
+ ( $metarole && $metarole->isa('Mouse::Meta::Role') )
+ || $applicant->meta->throw_error("You can only consume roles, $role_name(".$role_name->meta.") is not a Mouse role");
}
if ( scalar @roles == 1 ) {
- my ( $role, $params ) = @{ $roles[0] };
- $role->meta->apply( $meta, ( defined $params ? %$params : () ) );
+ my ( $role_name, $params ) = @{ $roles[0] };
+ get_metaclass_by_name($role_name)->apply( $applicant, defined $params ? $params : () );
}
else {
- Mouse::Meta::Role->combine_apply($meta, @roles);
+ Mouse::Meta::Role->combine(@roles)->apply($applicant);
}
return;
}
Carp::confess("Mouse does not currently support $feature");
}
-sub meta{
- return Mouse::Meta::Class->initialize($_[0]);
+# general meta() method
+sub meta :method{
+ return Mouse::Meta::Class->initialize(ref($_[0]) || $_[0]);
}
-sub dump {
+# general dump() method
+sub dump :method {
my($self, $maxdepth) = @_;
require 'Data/Dumper.pm'; # we don't want to create its namespace
return $dd->Dump();
}
+# general does() method
sub does :method;
*does = \&does_role; # alias
Mouse::Util - Features, with or without their dependencies
+=head1 VERSION
+
+This document describes Mouse version 0.40
+
=head1 IMPLEMENTATIONS FOR
=head2 Moose::Util
This function can be used in place of tricks like
C<eval "use $module"> or using C<require>.
-=head2 C<< Mouse::Util::class_of(ClassName) >>
+=head3 C<< Mouse::Util::class_of(ClassName or Object) >>
-The counterpart of C<Class::MOP::class_of()>. This is not exportable.
+=head3 C<< Mouse::Util::get_metaclass_by_name(ClassName) >>
-=head2 C<< Mouse::Util::get_metaclass_by_name(ClassName) >>
+=head3 C<< Mouse::Util::get_all_metaclass_instances() >>
-The counterpart of C<Class::MOP::get_metaclass_by_name()>. This is not exportable.
+=head3 C<< Mouse::Util::get_all_metaclass_names() >>
=head2 MRO::Compat
L<Moose::Util>
-L<Scalar::Util>
+L<Class::MOP>
L<Sub::Identify>
projects / gitmo/Mouse.git / blobdiff