Commit | Line | Data |
d93bd54d |
1 | package MooseX::Role::Parameterized::Meta::Role::Parameterizable; |
7b42fc96 |
2 | use Moose; |
3 | extends 'Moose::Meta::Role'; |
4 | |
d9e02904 |
5 | # ABSTRACT: metaclass for parameterizable roles |
6 | |
8f9a5c92 |
7 | use MooseX::Role::Parameterized::Meta::Role::Parameterized; |
7b42fc96 |
8 | use MooseX::Role::Parameterized::Parameters; |
9 | |
533553a0 |
10 | use constant parameterized_role_metaclass => 'MooseX::Role::Parameterized::Meta::Role::Parameterized'; |
11 | |
f563c3cd |
12 | has parameter_metaclass => ( |
39d3d5d0 |
13 | is => 'rw', |
f563c3cd |
14 | isa => 'Moose::Meta::Class', |
15 | lazy => 1, |
16 | default => sub { |
17 | Moose::Meta::Class->create_anon_class( |
18 | superclasses => ['MooseX::Role::Parameterized::Parameters'], |
19 | ); |
20 | }, |
21 | ); |
22 | |
5b82ffb1 |
23 | has role_generator => ( |
24 | is => 'rw', |
25 | isa => 'CodeRef', |
26 | predicate => 'has_role_generator', |
27 | ); |
28 | |
f563c3cd |
29 | sub add_parameter { |
30 | my $self = shift; |
21c3ef8c |
31 | my $name = shift; |
32 | |
33 | # need to figure out a plan for these guys.. |
34 | confess "The parameter name ($name) is currently forbidden." |
35 | if $name eq 'alias' |
36 | || $name eq 'excludes'; |
37 | |
38 | $self->parameter_metaclass->add_attribute($name => @_); |
f563c3cd |
39 | } |
7b42fc96 |
40 | |
f74750fb |
41 | sub construct_parameters { |
42 | my $self = shift; |
21c3ef8c |
43 | my %args = @_; |
44 | |
45 | # need to figure out a plan for these guys.. |
46 | for my $name ('alias', 'excludes') { |
47 | confess "The parameter name ($name) is currently forbidden." |
48 | if exists $args{$name}; |
49 | } |
50 | |
51 | $self->parameter_metaclass->new_object(\%args); |
f74750fb |
52 | } |
53 | |
4534bdce |
54 | sub generate_role { |
55 | my $self = shift; |
58954f3e |
56 | |
57 | my $parameters = @_ == 1 ? shift |
58 | : $self->construct_parameters(@_); |
4534bdce |
59 | |
60 | confess "A role generator is required to generate roles" |
61 | unless $self->has_role_generator; |
62 | |
533553a0 |
63 | my $role = $self->parameterized_role_metaclass->create_anon_role(parameters => $parameters); |
4534bdce |
64 | |
884a2a3b |
65 | local $MooseX::Role::Parameterized::CURRENT_METACLASS = $role; |
1e750b62 |
66 | $self->role_generator->($parameters, |
884a2a3b |
67 | operating_on => $role, |
1e750b62 |
68 | ); |
4534bdce |
69 | |
1e750b62 |
70 | return $role; |
4534bdce |
71 | } |
72 | |
d872e120 |
73 | sub apply { |
74 | my $self = shift; |
75 | my $class = shift; |
76 | my %args = @_; |
77 | |
78 | my $role = $self->generate_role(%args); |
79 | $role->apply($class, %args); |
80 | } |
81 | |
7b42fc96 |
82 | __PACKAGE__->meta->make_immutable; |
83 | no Moose; |
84 | |
85 | 1; |
86 | |
09e02a3f |
87 | __END__ |
88 | |
89 | =head1 DESCRIPTION |
90 | |
91 | This is the metaclass for parameteriz-able roles, roles that have their |
92 | parameters currently unbound. These are the roles that you use L<Moose/with>, |
93 | but instead of composing the parameteriz-able role, we construct a new |
94 | parameteriz-ed role |
95 | (L<MooseX::Role::Parameterized::Meta::Role::Parameterized>). |
96 | |
97 | =cut |
98 | |