/usr/share/perl5/Specio/Constraint/Role/CanType.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | package Specio::Constraint::Role::CanType;
use strict;
use warnings;
our $VERSION = '0.42';
use Scalar::Util qw( blessed );
use Specio::PartialDump qw( partial_dump );
use Storable qw( dclone );
use Role::Tiny;
use Specio::Constraint::Role::Interface;
with 'Specio::Constraint::Role::Interface';
{
## no critic (Subroutines::ProtectPrivateSubs)
my $attrs = dclone( Specio::Constraint::Role::Interface::_attrs() );
## use critic
for my $name (qw( parent _inline_generator )) {
$attrs->{$name}{init_arg} = undef;
$attrs->{$name}{builder}
= $name =~ /^_/ ? '_build' . $name : '_build_' . $name;
}
$attrs->{methods} = {
isa => 'ArrayRef',
required => 1,
};
## no critic (Subroutines::ProhibitUnusedPrivateSubroutines)
sub _attrs {
return $attrs;
}
}
## no critic (Subroutines::ProhibitUnusedPrivateSubroutines)
sub _wrap_message_generator {
my $self = shift;
my $generator = shift;
my $type = ( split /::/, blessed $self)[-1];
my @methods = @{ $self->methods };
my $all_word_list = _word_list(@methods);
my $allow_classes = $self->_allow_classes;
unless ( defined $generator ) {
$generator = sub {
shift;
my $value = shift;
return
"An undef will never pass an $type check (wants $all_word_list)"
unless defined $value;
my $class = blessed $value;
if ( !defined $class ) {
# If we got here we know that blessed returned undef, so if
# it's a ref then it must not be blessed.
if ( ref $value ) {
my $dump = partial_dump($value);
return
"An unblessed reference ($dump) will never pass an $type check (wants $all_word_list)";
}
# If it's defined and not an unblessed ref it must be a
# string. If we allow classes (vs just objects) then it might
# be a valid class name. But an empty string is never a valid
# class name. We cannot call q{}->can.
return
"An empty string will never pass an $type check (wants $all_word_list)"
unless length $value;
if ( ref \$value eq 'GLOB' ) {
return
"A glob will never pass an $type check (wants $all_word_list)";
}
if (
$value =~ /\A
\s*
-?[0-9]+(?:\.[0-9]+)?
(?:[Ee][\-+]?[0-9]+)?
\s*
\z/xs
) {
return
"A number ($value) will never pass an $type check (wants $all_word_list)";
}
$class = $value if $allow_classes;
# At this point we either have undef or a non-empty string in
# $class.
unless ( defined $class ) {
my $dump = partial_dump($value);
return
"A plain scalar ($dump) will never pass an $type check (wants $all_word_list)";
}
}
my @missing = grep { !$value->can($_) } @methods;
my $noun = @missing == 1 ? 'method' : 'methods';
my $list = _word_list( map {qq['$_']} @missing );
return "The $class class is missing the $list $noun";
};
}
return sub { $generator->( undef, @_ ) };
}
## use critic
sub _word_list {
my @items = sort { $a cmp $b } @_;
return $items[0] if @items == 1;
return join ' and ', @items if @items == 2;
my $final = pop @items;
my $list = join ', ', @items;
$list .= ', and ' . $final;
return $list;
}
1;
# ABSTRACT: Provides a common implementation for Specio::Constraint::AnyCan and Specio::Constraint::ObjectCan
__END__
=pod
=encoding UTF-8
=head1 NAME
Specio::Constraint::Role::CanType - Provides a common implementation for Specio::Constraint::AnyCan and Specio::Constraint::ObjectCan
=head1 VERSION
version 0.42
=head1 DESCRIPTION
See L<Specio::Constraint::AnyCan> and L<Specio::Constraint::ObjectCan> for details.
=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
|