package Specio::Constraint::AnyCan;
use strict;
use warnings;
our $VERSION = '0.44';
use List::Util 1.33 ();
use Role::Tiny::With;
use Scalar::Util ();
use Specio::Helpers qw( perlstring );
use Specio::Library::Builtins;
use Specio::OO;
use Specio::Constraint::Role::CanType;
with 'Specio::Constraint::Role::CanType';
{
my $Defined = t('Defined');
sub _build_parent {$Defined}
}
{
my $_inline_generator = sub {
my $self = shift;
my $val = shift;
my $methods = join ', ', map { perlstring($_) } @{ $self->methods };
return sprintf( <<'EOF', $val, $methods );
(
do {
# We need to assign this since if it's something like $_[0] then
# inside the all block @_ gets redefined and we can no longer get at
# the value.
my $v = %s;
(
Scalar::Util::blessed($v) || (
defined($v)
&& !ref($v)
&& length($v)
&& $v !~ /\A
\s*
-?[0-9]+(?:\.[0-9]+)?
(?:[Ee][\-+]?[0-9]+)?
\s*
\z/xs
# Passing a GLOB from (my $glob = *GLOB) gives us a very weird
# scalar. It's not a ref and it has a length but trying to
# call ->can on it throws an exception
&& ref( \$v ) ne 'GLOB'
)
) && List::Util::all { $v->can($_) } %s;
}
)
EOF
};
sub _build_inline_generator {$_inline_generator}
}
## no critic (Subroutines::ProhibitUnusedPrivateSubroutines)
sub _allow_classes {1}
## use critic
__PACKAGE__->_ooify;
1;
# ABSTRACT: A class for constraints which require a class name or object with a set of methods
__END__
=pod
=encoding UTF-8
=head1 NAME
Specio::Constraint::AnyCan - A class for constraints which require a class name or object with a set of methods
=head1 VERSION
version 0.44
=head1 SYNOPSIS
my $type = Specio::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<Specio::Constraint::Simple>,
with a few differences:
=head2 Specio::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<Specio::Constraint::Role::IsaType>,
L<Specio::Constraint::Role::Interface>, and L<Specio::Role::Inlinable> roles.
=head1 SUPPORT
Bugs may be submitted at L<https://github.com/houseabsolute/Specio/issues>.
I am also usually active on IRC as 'autarch' on C<irc://irc.perl.org>.
=head1 SOURCE
The source code repository for Specio can be found at L<https://github.com/houseabsolute/Specio>.
=head1 AUTHOR
Dave Rolsky <autarch@urth.org>
=head1 COPYRIGHT AND LICENSE
This software is Copyright (c) 2012 - 2019 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
The full text of the license can be found in the
F<LICENSE> file included with this distribution.
=cut