/usr/share/perl5/perl5i/2/Meta.pm is in libperl5i-perl 2.13.1-3.
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 | package perl5i::2::Meta;
use strict;
use warnings;
use 5.010_000;
# Be very careful not to import anything.
require Carp::Fix::1_25;
require mro;
require perl5i::2::Meta::Instance;
require perl5i::2::Meta::Class;
use perl5i::2::autobox;
sub UNIVERSAL::mo {
# Be careful to pass through an alias, not a copy
return perl5i::2::Meta::Instance->new($_[0]);
}
sub UNIVERSAL::mc {
return perl5i::2::Meta::Class->new($_[0]);
}
sub new {
my $class = shift;
# Be careful to take a reference to an alias, not a copy
return bless \\$_[0], $class;
}
sub ISA {
my $class = $_[0]->class;
no strict 'refs';
return wantarray ? @{$class.'::ISA'} : \@{$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';
my $isa = [@{mro::get_linear_isa($class)}, @extra];
return wantarray ? @$isa : $isa;
}
sub methods {
my $self = shift;
my $opts = shift // {};
my $top = $self->class;
my %exclude;
state $defaults = {
with_UNIVERSAL => 0,
just_mine => 0,
};
$opts = { %$defaults, %$opts };
$exclude{UNIVERSAL} = !$opts->{with_UNIVERSAL};
my @classes = $opts->{just_mine} ? $self->class : $self->linear_isa;
my %all_methods;
for my $class (@classes) {
next if $exclude{$class} && $class ne $top;
my $sym_table = $class->mc->symbol_table;
for my $name (keys %$sym_table) {
my $glob = $sym_table->{$name};
next unless ref \$glob eq "GLOB";
next unless my $code = *{$glob}{CODE};
my $sig = $code->signature;
next if $sig and !$sig->is_method;
$all_methods{$name} = $class;
}
}
return wantarray ? keys %all_methods : [keys %all_methods];
}
sub symbol_table {
my $self = shift;
my $class = $self->class;
no strict 'refs';
return \%{$class.'::'};
}
# A single place to put the "method not found" error.
my $method_not_found = sub {
my $class = shift;
my $method = shift;
Carp::Fix::1_25::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::Fix::1_25::croak("super() called outside a method") unless $fq_method;
my($parent, $method) = $fq_method =~ /^(.*)::(\w+)$/;
Carp::Fix::1_25::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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