/usr/share/perl5/Specio/Helpers.pm is in libspecio-perl 0.42-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | package Specio::Helpers;
use strict;
use warnings;
use Carp qw( croak );
use Exporter 'import';
use overload ();
our $VERSION = '0.42';
use Scalar::Util qw( blessed );
our @EXPORT_OK = qw( install_t_sub is_class_loaded _STRINGLIKE );
sub install_t_sub {
# Specio::DeclaredAt use Specio::OO, which in turn uses
# Specio::Helpers. If we load this with "use" we get a cirular require and
# a big mess.
require Specio::DeclaredAt;
my $caller = shift;
my $types = shift;
# XXX - check to see if their t() is something else entirely?
return if $caller->can('t');
my $t = sub {
my $name = shift;
croak 'The t subroutine requires a single non-empty string argument'
unless _STRINGLIKE($name);
croak "There is no type named $name available for the $caller package"
unless exists $types->{$name};
my $found = $types->{$name};
return $found unless @_;
my %p = @_;
croak 'Cannot parameterize a non-parameterizable type'
unless $found->can('parameterize');
return $found->parameterize(
declared_at => Specio::DeclaredAt->new_from_caller(1),
%p,
);
};
{
## no critic (TestingAndDebugging::ProhibitNoStrict)
no strict 'refs';
no warnings 'redefine';
*{ $caller . '::t' } = $t;
}
return;
}
## no critic (Subroutines::ProhibitSubroutinePrototypes, Subroutines::ProhibitExplicitReturnUndef)
sub _STRINGLIKE ($) {
return $_[0] if _STRING( $_[0] );
return $_[0]
if blessed $_[0]
&& overload::Method( $_[0], q{""} )
&& length "$_[0]";
return undef;
}
# Borrowed from Params::Util
sub _STRING ($) {
return defined $_[0] && !ref $_[0] && length( $_[0] ) ? $_[0] : undef;
}
# Borrowed from Types::Standard
sub is_class_loaded {
my $stash = do {
## no critic (TestingAndDebugging::ProhibitNoStrict)
no strict 'refs';
\%{ $_[0] . '::' };
};
return 1 if exists $stash->{ISA};
return 1 if exists $stash->{VERSION};
foreach my $globref ( values %{$stash} ) {
return 1
if ref \$globref eq 'GLOB'
? *{$globref}{CODE}
: ref $globref; # const or sub ref
}
return 0;
}
1;
# ABSTRACT: Helper subs for the Specio distro
__END__
=pod
=encoding UTF-8
=head1 NAME
Specio::Helpers - Helper subs for the Specio distro
=head1 VERSION
version 0.42
=head1 DESCRIPTION
There's nothing public here.
=for Pod::Coverage .*
=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 - 2017 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
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