use warnings;
use metaclass;
+use B;
use Moose::Util::TypeConstraints ();
-our $VERSION = '0.73_02';
-$VERSION = eval $VERSION;
-our $AUTHORITY = 'cpan:STEVAN';
-
use base 'Moose::Meta::TypeConstraint';
__PACKAGE__->meta->add_attribute('values' => (
accessor => 'values',
));
+__PACKAGE__->meta->add_attribute('_inline_var_name' => (
+ accessor => '_inline_var_name',
+));
+
+my $inliner = sub {
+ my $self = shift;
+ my $val = shift;
+
+ return 'defined(' . $val . ') '
+ . '&& !ref(' . $val . ') '
+ . '&& $' . $self->_inline_var_name . '{' . $val . '}';
+};
+
+my $var_suffix = 0;
+
sub new {
my ( $class, %args ) = @_;
$args{parent} = Moose::Util::TypeConstraints::find_type_constraint('Str');
+ $args{inlined} = $inliner;
+
+ 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 %values = map { $_ => 1 } @{ $args{values} };
+ $args{constraint} = sub { $values{ $_[0] } };
+
+ my $var_name = 'enums' . $var_suffix++;;
+ $args{_inline_var_name} = $var_name;
+ $args{inline_environment} = { '%' . $var_name => \%values };
my $self = $class->_new(\%args);
return sub { exists $values{$_[0]} };
}
-sub _compile_hand_optimized_type_constraint {
- my $self = shift;
-
- my %values = map { $_ => undef } @{ $self->values };
-
- sub { defined($_[0]) && !ref($_[0]) && exists $values{$_[0]} };
-}
-
sub create_child_type {
my ($self, @args) = @_;
return Moose::Meta::TypeConstraint->new(@args, parent => $self);
1;
+# ABSTRACT: Type constraint for enumerated values.
+
__END__
=pod
-=head1 NAME
-
-Moose::Meta::TypeConstraint::Enum - Type constraint for enumerated values.
-
=head1 DESCRIPTION
This class represents type constraints based on an enumerated list of
=item B<< Moose::Meta::TypeConstraint::Enum->new(%options) >>
-This creates a new class type constraint based on the given
+This creates a new enum type constraint based on the given
C<%options>.
It takes the same options as its parent, with several
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>
+is generated automatically based on the provided C<values>.
=item B<< $constraint->values >>
=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
-
-Yuval Kogman E<lt>nothingmuch@cpan.orgE<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.
+See L<Moose/BUGS> for details on reporting bugs.
=cut