Convert from Module::Install to Dist::Zilla
[gitmo/MooseX-Types-Structured.git] / lib / MooseX / Meta / TypeCoercion / Structured / Optional.pm
1 package MooseX::Meta::TypeCoercion::Structured::Optional;
2
3 use Moose;
4 extends 'Moose::Meta::TypeCoercion';
5
6 =method compile_type_coercion
7
8 =cut
9
10 sub compile_type_coercion {
11     my ($self) = @_;
12     my $constraint = $self->type_constraint->type_parameter;
13
14     $self->_compiled_type_coercion(sub {
15         my ($value) = @_;
16         return unless $constraint->has_coercion;
17         return $constraint->coerce($value);
18     });
19 }
20
21 sub has_coercion_for_type { 0 }
22
23 sub add_type_coercions {
24     Moose->throw_error("Cannot add additional type coercions to Optional types");
25 }
26
27 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
28
29 1;