Commit | Line | Data |
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1 | package Moose::Meta::Class::Immutable::Trait; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
6 | use Class::MOP; |
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7 | use Scalar::Util qw( blessed ); |
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8 | |
9 | use base 'Class::MOP::Class::Immutable::Trait'; |
10 | |
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11 | sub add_role { $_[1]->_immutable_cannot_call } |
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12 | |
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13 | sub calculate_all_roles { |
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14 | my $orig = shift; |
15 | my $self = shift; |
16 | @{ $self->{__immutable}{calculate_all_roles} ||= [ $self->$orig ] }; |
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17 | } |
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18 | |
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19 | sub calculate_all_roles_with_inheritance { |
20 | my $orig = shift; |
21 | my $self = shift; |
22 | @{ $self->{__immutable}{calculate_all_roles_with_inheritance} ||= [ $self->$orig ] }; |
23 | } |
24 | |
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25 | sub does_role { |
26 | shift; |
27 | my $self = shift; |
28 | my $role = shift; |
29 | |
30 | (defined $role) |
31 | || $self->throw_error("You must supply a role name to look for"); |
32 | |
33 | $self->{__immutable}{does_role} ||= { map { $_->name => 1 } $self->calculate_all_roles_with_inheritance }; |
34 | |
35 | my $name = blessed $role ? $role->name : $role; |
36 | |
37 | return $self->{__immutable}{does_role}{$name}; |
38 | } |
39 | |
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40 | 1; |
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41 | |
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42 | # ABSTRACT: Implements immutability for metaclass objects |
43 | |
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44 | __END__ |
45 | |
46 | =pod |
47 | |
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48 | =head1 DESCRIPTION |
49 | |
50 | This class makes some Moose-specific metaclass methods immutable. This |
51 | is deep guts. |
52 | |
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53 | =head1 BUGS |
54 | |
55 | See L<Moose/BUGS> for details on reporting bugs. |
56 | |
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57 | =cut |
58 | |