package Mouse::Util;
use strict;
use warnings;
-use base qw/Exporter/;
+
+use Exporter;
use Carp qw(confess);
use B ();
+use constant _MOUSE_VERBOSE => !!$ENV{MOUSE_VERBOSE};
+
+our @ISA = qw(Exporter);
our @EXPORT_OK = qw(
find_meta
does_role
get_linear_isa
get_code_info
+ get_code_package
+
not_supported
+
+ does meta dump
+ _MOUSE_VERBOSE
);
our %EXPORT_TAGS = (
all => \@EXPORT_OK,
+ meta => [qw(does meta dump _MOUSE_VERBOSE)],
);
# Moose::Util compatible utilities
}
sub does_role{
- my ($class_or_obj, $role) = @_;
+ my ($class_or_obj, $role_name) = @_;
my $meta = Mouse::Meta::Module::class_of($class_or_obj);
- return 0 unless defined $meta;
- return 1 if $meta->does_role($role);
- return 0;
+ (defined $role_name)
+ || ($meta || 'Mouse::Meta::Class')->throw_error("You must supply a role name to does()");
+
+ return defined($meta) && $meta->does_role($role_name);
}
return ($gv->STASH->NAME, $gv->NAME);
}
+
+ sub get_code_package{
+ my($coderef) = @_;
+
+ my $cv = B::svref_2object($coderef);
+ $cv->isa('B::CV') or return '';
+
+ my $gv = $cv->GV;
+ $gv->isa('B::GV') or return '';
+
+ return $gv->STASH->NAME;
+ }
}
# taken from Mouse::Util (0.90)
my @classes = @_
or return;
- my $found;
my %exceptions;
for my $class (@classes) {
my $e = _try_load_one_class($class);
$exceptions{$class} = $e;
}
else {
- $found = $class;
- last;
+ return $class;
}
}
- return $found if $found;
+ # not found
confess join(
"\n",
map {
if ($i + 1 < $max && ref($_[$i + 1])) {
push @roles, [ $_[$i++] => $_[$i] ];
} else {
- push @roles, [ $_[$i] => {} ];
+ push @roles, [ $_[$i] => undef ];
}
my $role_name = $roles[-1][0];
load_class($role_name);
return join q{, }, @items, "and $tail";
}
+
+# common utilities
+
sub not_supported{
my($feature) = @_;
Carp::confess("Mouse does not currently support $feature");
}
+sub meta{
+ return Mouse::Meta::Class->initialize($_[0]);
+}
+
+sub dump {
+ my($self, $maxdepth) = @_;
+
+ require 'Data/Dumper.pm'; # we don't want to create its namespace
+ my $dd = Data::Dumper->new([$self]);
+ $dd->Maxdepth(defined($maxdepth) ? $maxdepth : 2);
+ $dd->Indent(1);
+ return $dd->Dump();
+}
+
+sub does :method;
+*does = \&does_role; # alias
+
1;
__END__
=head1 NAME
-Mouse::Util - features, with or without their dependencies
+Mouse::Util - Features, with or without their dependencies
=head1 IMPLEMENTATIONS FOR
=head2 Class::MOP
-=head3 C<is_class_loaded>
+=head3 C<< is_class_loaded(ClassName) -> Bool >>
+
+Returns whether C<ClassName> is actually loaded or not. It uses a heuristic which
+involves checking for the existence of C<$VERSION>, C<@ISA>, and any
+locally-defined method.
-=head3 C<load_class>
+=head3 C<< load_class(ClassName) >>
+
+This will load a given C<ClassName> (or die if it's not loadable).
+This function can be used in place of tricks like
+C<eval "use $module"> or using C<require>.
=head2 MRO::Compat
=head1 UTILITIES FOR MOUSE
-=over 4
+=head3 C<not_supported>
+
+=head1 SEE ALSO
+
+L<Moose::Util>
-=item *
+L<Scalar::Util>
-C<not_supported>
+L<Sub::Identify>
-=back
+L<MRO::Compat>
=cut