use Scalar::Util 'blessed';
-our $VERSION = '0.60';
+our $VERSION = '0.99';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
sub compile_type_coercion {
my $self = shift;
my $type_constraint = $self->type_constraint;
-
+
(blessed $type_constraint && $type_constraint->isa('Moose::Meta::TypeConstraint::Union'))
|| Moose->throw_error("You can only a Moose::Meta::TypeCoercion::Union for a " .
"Moose::Meta::TypeConstraint::Union, not a $type_constraint");
-
+
$self->_compiled_type_coercion(sub {
my $value = shift;
- # go through all the type constraints
+ # go through all the type constraints
# in the union, and check em ...
foreach my $type (@{$type_constraint->type_constraints}) {
# if they have a coercion first
- if ($type->has_coercion) {
+ if ($type->has_coercion) {
# then try to coerce them ...
my $temp = $type->coerce($value);
- # and if they get something
+ # and if they get something
# make sure it still fits within
# the union type ...
return $temp if $type_constraint->check($temp);
}
}
- return undef;
+ return undef;
});
}
sub has_coercion_for_type { 0 }
sub add_type_coercions {
+ require Moose;
Moose->throw_error("Cannot add additional type coercions to Union types");
}
=head1 DESCRIPTION
-For the most part, the only time you will ever encounter an
-instance of this class is if you are doing some serious deep
-introspection. This API should not be considered final, but
-it is B<highly unlikely> that this will matter to a regular
-Moose user.
-
-If you wish to use features at this depth, please come to the
-#moose IRC channel on irc.perl.org and we can talk :)
-
+This is a subclass of L<Moose::Meta::TypeCoercion> that is used for
+L<Moose::Meta::TypeConstraint::Union> objects.
=head1 METHODS
=over 4
-=item B<meta>
+=item B<< $coercion->has_coercion_for_type >>
+
+This method always returns false.
+
+=item B<< $coercion->add_type_coercions >>
-=item B<compile_type_coercion>
+This method always throws an error. You cannot add coercions to a
+union type coercion.
-=item B<has_coercion_for_type>
+=item B<< $coercion->coerce($value) >>
-=item B<add_type_coercions>
+This method will coerce by trying the coercions for each type in the
+union.
=back
=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.
+See L<Moose/BUGS> for details on reporting bugs.
=head1 AUTHOR
=head1 COPYRIGHT AND LICENSE
-Copyright 2006-2008 by Infinity Interactive, Inc.
+Copyright 2006-2010 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.
+it under the same terms as Perl itself.
=cut