/usr/lib/perl5/Moose/Meta/TypeConstraint/Class.pm is in libmoose-perl 2.0401-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | package Moose::Meta::TypeConstraint::Class;
BEGIN {
$Moose::Meta::TypeConstraint::Class::AUTHORITY = 'cpan:STEVAN';
}
{
$Moose::Meta::TypeConstraint::Class::VERSION = '2.0401';
}
use strict;
use warnings;
use metaclass;
use B;
use Scalar::Util 'blessed';
use Moose::Util::TypeConstraints ();
use base 'Moose::Meta::TypeConstraint';
__PACKAGE__->meta->add_attribute('class' => (
reader => 'class',
Class::MOP::_definition_context(),
));
my $inliner = sub {
my $self = shift;
my $val = shift;
return 'Scalar::Util::blessed(' . $val . ')'
. ' && ' . $val . '->isa(' . B::perlstring($self->class) . ')';
};
sub new {
my ( $class, %args ) = @_;
$args{parent}
= Moose::Util::TypeConstraints::find_type_constraint('Object');
my $class_name = $args{class};
$args{constraint} = sub { $_[0]->isa($class_name) };
$args{inlined} = $inliner;
my $self = $class->SUPER::new( \%args );
$self->compile_type_constraint();
return $self;
}
sub parents {
my $self = shift;
return (
$self->parent,
map {
# FIXME find_type_constraint might find a TC named after the class but that isn't really it
# I did this anyway since it's a convention that preceded TypeConstraint::Class, and it should DWIM
# if anybody thinks this problematic please discuss on IRC.
# a possible fix is to add by attr indexing to the type registry to find types of a certain property
# regardless of their name
Moose::Util::TypeConstraints::find_type_constraint($_)
||
__PACKAGE__->new( class => $_, name => "__ANON__" )
} Class::MOP::class_of($self->class)->superclasses,
);
}
sub equals {
my ( $self, $type_or_name ) = @_;
my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
if (!defined($other)) {
if (!ref($type_or_name)) {
return $self->class eq $type_or_name;
}
return;
}
return unless $other->isa(__PACKAGE__);
return $self->class eq $other->class;
}
sub is_a_type_of {
my ($self, $type_or_name) = @_;
($self->equals($type_or_name) || $self->is_subtype_of($type_or_name));
}
sub is_subtype_of {
my ($self, $type_or_name_or_class ) = @_;
my $type = Moose::Util::TypeConstraints::find_type_constraint($type_or_name_or_class);
if ( not defined $type ) {
if ( not ref $type_or_name_or_class ) {
# it might be a class
my $class = $self->class;
return 1 if $class ne $type_or_name_or_class
&& $class->isa( $type_or_name_or_class );
}
return;
}
if ( $type->isa(__PACKAGE__) && $type->class ne $self->class) {
# if $type_or_name_or_class isn't a class, it might be the TC name of another ::Class type
# or it could also just be a type object in this branch
return $self->class->isa( $type->class );
} else {
# the only other thing we are a subtype of is Object
$self->SUPER::is_subtype_of($type);
}
}
# This is a bit counter-intuitive, but a child type of a Class type
# constraint is not itself a Class type constraint (it has no class
# attribute). This whole create_child_type thing needs some changing
# though, probably making MMC->new a factory or something.
sub create_child_type {
my ($self, @args) = @_;
return Moose::Meta::TypeConstraint->new(@args, parent => $self);
}
sub get_message {
my $self = shift;
my ($value) = @_;
if ($self->has_message) {
return $self->SUPER::get_message(@_);
}
$value = (defined $value ? overload::StrVal($value) : 'undef');
return "Validation failed for '" . $self->name . "' with value $value (not isa " . $self->class . ")";
}
1;
# ABSTRACT: Class/TypeConstraint parallel hierarchy
=pod
=head1 NAME
Moose::Meta::TypeConstraint::Class - Class/TypeConstraint parallel hierarchy
=head1 VERSION
version 2.0401
=head1 DESCRIPTION
This class represents type constraints for a class.
=head1 INHERITANCE
C<Moose::Meta::TypeConstraint::Class> is a subclass of
L<Moose::Meta::TypeConstraint>.
=head1 METHODS
=over 4
=item B<< Moose::Meta::TypeConstraint::Class->new(%options) >>
This creates a new class type constraint based on the given
C<%options>.
It takes the same options as its parent, with two exceptions. First,
it requires an additional option, C<class>, which is name of the
constraint's class. Second, it automatically sets the parent to the
C<Object> type.
The constructor also overrides the hand optimized type constraint with
one it creates internally.
=item B<< $constraint->class >>
Returns the class name associated with the constraint.
=item B<< $constraint->parents >>
Returns all the type's parent types, corresponding to its parent
classes.
=item B<< $constraint->is_subtype_of($type_name_or_object) >>
If the given type is also a class type, then this checks that the
type's class is a subclass of the other type's class.
Otherwise it falls back to the implementation in
L<Moose::Meta::TypeConstraint>.
=item B<< $constraint->create_child_type(%options) >>
This returns a new L<Moose::Meta::TypeConstraint> object with the type
as its parent.
Note that it does I<not> return a
C<Moose::Meta::TypeConstraint::Class> object!
=item B<< $constraint->get_message($value) >>
This is the same as L<Moose::Meta::TypeConstraint/get_message> except
that it explicitly says C<isa> was checked. This is to help users deal
with accidentally autovivified type constraints.
=back
=head1 BUGS
See L<Moose/BUGS> for details on reporting bugs.
=head1 AUTHOR
Moose is maintained by the Moose Cabal, along with the help of many contributors. See L<Moose/CABAL> and L<Moose/CONTRIBUTORS> for details.
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Infinity Interactive, Inc..
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
__END__
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