Mouse::PurePerl(3pm) User Contributed Perl Documentation Mouse::PurePerl(3pm)NAME
Mouse::PurePerl - A Mouse guts in pure Perl
VERSION
This document describes Mouse version 0.99
SEE ALSO
Mouse::XS
perl v5.14.2 2012-06-30 Mouse::PurePerl(3pm)
Check Out this Related Man Page
Mouse::Role(3pm) User Contributed Perl Documentation Mouse::Role(3pm)NAME
Mouse::Role - The Mouse Role
VERSION
This document describes Mouse version 0.99
SYNOPSIS
package Comparable;
use Mouse::Role; # the package is now a Mouse role
# Declare methods that are required by this role
requires qw(compare);
# Define methods this role provides
sub equals {
my($self, $other) = @_;
return $self->compare($other) == 0;
}
# and later
package MyObject;
use Mouse;
with qw(Comparable); # Now MyObject can equals()
sub compare {
# ...
}
my $foo = MyObject->new();
my $bar = MyObject->new();
$obj->equals($bar); # yes, it is comparable
DESCRIPTION
This module declares the caller class to be a Mouse role.
The concept of roles is documented in Moose::Manual::Roles. This document serves as API documentation.
EXPORTED FUNCTIONS
Mouse::Role supports all of the functions that Mouse exports, but differs slightly in how some items are handled (see "CAVEATS" below for
details).
Mouse::Role also offers two role-specific keywords:
"requires(@method_names)"
Roles can require that certain methods are implemented by any class which "does" the role.
Note that attribute accessors also count as methods for the purposes of satisfying the requirements of a role.
"excludes(@role_names)"
This is exported but not implemented in Mouse.
IMPORT AND UNIMPORT
import
Importing Mouse::Role will give you sugar. "-traits" are also supported.
unimport
Please unimport ("no Mouse::Role") so that if someone calls one of the keywords (such as "has") it will break loudly instead breaking
subtly.
CAVEATS
Role support has only a few caveats:
o Roles cannot use the "extends" keyword; it will throw an exception for now. The same is true of the "augment" and "inner" keywords
(not sure those really make sense for roles). All other Mouse keywords will be deferred so that they can be applied to the consuming
class.
o Role composition does its best to not be order-sensitive when it comes to conflict resolution and requirements detection. However, it
is order-sensitive when it comes to method modifiers. All before/around/after modifiers are included whenever a role is composed into a
class, and then applied in the order in which the roles are used. This also means that there is no conflict for before/around/after
modifiers.
In most cases, this will be a non-issue; however, it is something to keep in mind when using method modifiers in a role. You should
never assume any ordering.
SEE ALSO
Mouse
Moose::Role
Moose::Manual::Roles
Moose::Spec::Role
perl v5.14.2 2012-06-30 Mouse::Role(3pm)
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