package Type::Constraint::AnyCan;
{
$Type::Constraint::AnyCan::VERSION = '0.03'; # TRIAL
}
use strict;
use warnings;
use namespace::autoclean;
use B ();
use Scalar::Util;
use Type::Library::Builtins;
use Moose;
with 'Type::Constraint::Role::CanType';
my $Defined = t('Defined');
has '+parent' => (
init_arg => undef,
default => sub { $Defined },
);
my $_inline_generator = sub {
my $self = shift;
my $val = shift;
return
'( Scalar::Util::blessed('
. $val
. ') || ( '
. " defined $val && ! ref $val ) )"
. ' && List::MoreUtils::all { '
. $val
. '->can($_) } ' . '( '
. ( join ', ', map { B::perlstring($_) } @{ $self->methods() } )
. ')';
};
has '+_inline_generator' => (
init_arg => undef,
default => sub { $_inline_generator },
);
__PACKAGE__->meta()->make_immutable();
1;
# ABSTRACT: A class for constraints which require a class name or object with a set of methods
=pod
=head1 NAME
Type::Constraint::AnyCan - A class for constraints which require a class name or object with a set of methods
=head1 VERSION
version 0.03
=head1 SYNOPSIS
my $type = Type::Constraint::AnyCan->new(...);
print $_, "\n" for @{ $type->methods() };
=head1 DESCRIPTION
This is a specialized type constraint class for types which require a class
name or object with a defined set of methods.
=head1 API
This class provides all of the same methods as L<Type::Constraint::Simple>,
with a few differences:
=head2 Type::Constraint::AnyCan->new( ... )
The C<parent> parameter is ignored if it passed, as it is always set to the
C<Defined> type.
The C<inline_generator> and C<constraint> parameters are also ignored. This
class provides its own default inline generator subroutine reference.
This class overrides the C<message_generator> default if none is provided.
Finally, this class requires an additional parameter, C<methods>. This must be
an array reference of method names which the constraint requires. You can also
pass a single string and it will be converted to an array reference
internally.
=head2 $any_can->methods()
Returns an array reference containing the methods this constraint requires.
=head1 ROLES
This class does the L<Type::Constraint::Role::CanType>,
L<Type::Constraint::Role::Interface>, L<Type::Role::Inlinable>, and
L<MooseX::Clone> roles.
=head1 AUTHOR
Dave Rolsky <autarch@urth.org>
=head1 COPYRIGHT AND LICENSE
This software is Copyright (c) 2012 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
=cut
__END__