/usr/share/perl5/perl5i/0/Meta.pm is in libperl5i-perl 2.13.0-1.
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 | package perl5i::0::Meta;
use strict;
use warnings;
# Be very careful not to import anything.
require Carp;
require mro;
require perl5i::0::Meta::Instance;
require perl5i::0::Meta::Class;
sub UNIVERSAL::mo {
return perl5i::0::Meta->new($_[0]);
}
sub new {
my($class, $thing) = @_;
return bless \$thing, ref $thing ? "perl5i::0::Meta::Instance" : "perl5i::0::Meta::Class";
}
sub ISA {
my $class = $_[0]->class;
no strict 'refs';
return @{$class.'::ISA'};
}
sub linear_isa {
my $self = shift;
my $class = $self->class;
# get_linear_isa() does not return UNIVERSAL
my @extra;
@extra = qw(UNIVERSAL) unless $class eq 'UNIVERSAL';
return @{mro::get_linear_isa($class)}, @extra;
}
# A single place to put the "method not found" error.
my $method_not_found = sub {
my $class = shift;
my $method = shift;
Carp::croak sprintf q[Can't locate object method "%s" via package "%s"],
$method, $class;
};
# caller() will return if its inside an eval, need to skip over those.
my $find_method = sub {
my $method;
my $height = 2;
do {
$method = (caller($height))[3];
$height++;
} until( !defined $method or $method ne '(eval)' );
return $method;
};
sub super {
my $self = shift;
my $class = $self->class;
my $fq_method = $find_method->();
Carp::croak "super() called outside a method" unless $fq_method;
my($parent, $method) = $fq_method =~ /^(.*)::(\w+)$/;
Carp::croak sprintf qq["%s" is not a parent class of "%s"], $parent, $class
unless $class->isa($parent);
my @isa = $self->linear_isa();
while(@isa) {
my $class = shift @isa;
last if $class eq $parent;
}
for (@isa) {
my $code = $_->can($method);
@_ = ($$self, @_);
goto &$code if $code;
}
$class->$method_not_found($method);
}
1;
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