use Moose::Util::TypeConstraints ();
-our $VERSION = '0.57';
+our $VERSION = '1.12';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
$args{parent} = Moose::Util::TypeConstraints::find_type_constraint('Str');
+ if ( scalar @{ $args{values} } < 2 ) {
+ require Moose;
+ Moose->throw_error("You must have at least two values to enumerate through");
+ }
+
+ for (@{ $args{values} }) {
+ if (!defined($_)) {
+ require Moose;
+ Moose->throw_error("Enum values must be strings, not undef");
+ }
+ elsif (ref($_)) {
+ require Moose;
+ Moose->throw_error("Enum values must be strings, not '$_'");
+ }
+ }
+
my $self = $class->_new(\%args);
$self->compile_type_constraint()
sub { defined($_[0]) && !ref($_[0]) && exists $values{$_[0]} };
}
+sub create_child_type {
+ my ($self, @args) = @_;
+ return Moose::Meta::TypeConstraint->new(@args, parent => $self);
+}
+
1;
__END__
Moose::Meta::TypeConstraint::Enum - Type constraint for enumerated values.
+=head1 DESCRIPTION
+
+This class represents type constraints based on an enumerated list of
+acceptable values.
+
+=head1 INHERITANCE
+
+C<Moose::Meta::TypeConstraint::Enum> is a subclass of
+L<Moose::Meta::TypeConstraint>.
+
=head1 METHODS
=over 4
-=item B<new>
+=item B<< Moose::Meta::TypeConstraint::Enum->new(%options) >>
+
+This creates a new enum type constraint based on the given
+C<%options>.
+
+It takes the same options as its parent, with several
+exceptions. First, it requires an additional option, C<values>. This
+should be an array reference containing a list of valid string
+values. Second, it automatically sets the parent to the C<Str> type.
+
+Finally, it ignores any provided C<constraint> option. The constraint
+is generated automatically based on the provided C<values>.
+
+=item B<< $constraint->values >>
-=item B<equals>
+Returns the array reference of acceptable values provided to the
+constructor.
-=item B<constraint>
+=item B<< $constraint->create_child_type >>
-=item B<values>
+This returns a new L<Moose::Meta::TypeConstraint> object with the type
+as its parent.
-=item B<meta>
+Note that it does I<not> return a C<Moose::Meta::TypeConstraint::Enum>
+object!
=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>