| Moo::Role(3pm) - phpMan
Moo::Role(3pm) User Contributed Perl Documentation Moo::Role(3pm)
NAME
Moo::Role - Minimal Object Orientation support for Roles
SYNOPSIS
package My::Role;
use Moo::Role;
sub foo { ... }
sub bar { ... }
has baz => (
is => 'ro',
);
1;
And elsewhere:
package Some::Class;
use Moo;
# bar gets imported, but not foo
with('My::Role');
sub foo { ... }
1;
DESCRIPTION
"Moo::Role" builds upon Role::Tiny, so look there for most of the documentation on how
this works. The main addition here is extra bits to make the roles more "Moosey;" which
is to say, it adds "has".
IMPORTED SUBROUTINES
See "IMPORTED SUBROUTINES" in Role::Tiny for all the other subroutines that are imported
by this module.
has
has attr => (
is => 'ro',
);
Declares an attribute for the class to be composed into. See "has" in Moo for all
options.
CLEANING UP IMPORTS
Moo::Role cleans up its own imported methods and any imports declared before the "use
Moo::Role" statement automatically. Anything imported after "use Moo::Role" will be
composed into consuming packages. A package that consumes this role:
package My::Role::ID;
use Digest::MD5 qw(md5_hex);
use Moo::Role;
use Digest::SHA qw(sha1_hex);
requires 'name';
sub as_md5 { my ($self) = @_; return md5_hex($self->name); }
sub as_sha1 { my ($self) = @_; return sha1_hex($self->name); }
1;
..will now have a "$self->sha1_hex()" method available to it that probably does not do
what you expect. On the other hand, a call to "$self->md5_hex()" will die with the
helpful error message: "Can't locate object method "md5_hex"".
See "CLEANING UP IMPORTS" in Moo for more details.
SUPPORT
See Moo for support and contact information.
AUTHORS
See Moo for authors.
COPYRIGHT AND LICENSE
See Moo for the copyright and license.
perl v5.20.1 2014-10-22 Moo::Role(3pm)
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