Add built local::lib

[catagits/Gitalist.git] / local-lib5 / lib / perl5 / Moose / Meta / TypeConstraint / Parameterized.pm

diff --git a/local-lib5/lib/perl5/Moose/Meta/TypeConstraint/Parameterized.pm b/local-lib5/lib/perl5/Moose/Meta/TypeConstraint/Parameterized.pm
new file mode 100644 (file)
index 0000000..fbfe635
--- /dev/null
+++ b/local-lib5/lib/perl5/Moose/Meta/TypeConstraint/Parameterized.pm
@@ -0,0 +1,110 @@
+package Moose::Meta::TypeConstraint::Parameterized;
+
+use strict;
+use warnings;
+use metaclass;
+
+use Scalar::Util 'blessed';
+use Moose::Util::TypeConstraints;
+use Moose::Meta::TypeConstraint::Parameterizable;
+
+our $VERSION   = '0.93';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
+
+use base 'Moose::Meta::TypeConstraint';
+
+__PACKAGE__->meta->add_attribute('type_parameter' => (
+    accessor  => 'type_parameter',
+    predicate => 'has_type_parameter',
+));
+
+sub equals {
+    my ( $self, $type_or_name ) = @_;
+
+    my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
+
+    return unless $other->isa(__PACKAGE__);
+
+    return (
+        $self->type_parameter->equals( $other->type_parameter )
+            and
+        $self->parent->equals( $other->parent )
+    );
+}
+
+sub compile_type_constraint {
+    my $self = shift;
+
+    unless ( $self->has_type_parameter ) {
+        require Moose;
+        Moose->throw_error("You cannot create a Higher Order type without a type parameter");
+    }
+
+    my $type_parameter = $self->type_parameter;
+
+    unless ( blessed $type_parameter && $type_parameter->isa('Moose::Meta::TypeConstraint') ) {
+        require Moose;
+        Moose->throw_error("The type parameter must be a Moose meta type");
+    }
+
+    foreach my $type (Moose::Util::TypeConstraints::get_all_parameterizable_types()) {
+        if (my $constraint = $type->generate_constraint_for($self)) {
+            $self->_set_constraint($constraint);
+            return $self->SUPER::compile_type_constraint;
+        }
+    }
+
+    # if we get here, then we couldn't
+    # find a way to parameterize this type
+    require Moose;
+    Moose->throw_error("The " . $self->name . " constraint cannot be used, because "
+          . $self->parent->name . " doesn't subtype or coerce from a parameterizable type.");
+}
+
+sub create_child_type {
+    my ($self, %opts) = @_;
+    return Moose::Meta::TypeConstraint::Parameterizable->new(%opts, parent=>$self);
+}
+
+1;
+
+__END__
+
+
+=pod
+
+=head1 NAME
+
+Moose::Meta::TypeConstraint::Parameterized - Type constraints with a bound parameter (ArrayRef[Int])
+
+=head1 METHODS
+
+This class is intentionally not documented because the API is
+confusing and needs some work.
+
+=head1 INHERITANCE
+
+C<Moose::Meta::TypeConstraint::Parameterized> is a subclass of
+L<Moose::Meta::TypeConstraint>.
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2006-2009 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut