/usr/share/perl/5.18.2/AutoLoader.pm is in perl-base 5.18.2-2ubuntu1.
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 | package AutoLoader;
use strict;
use 5.006_001;
our($VERSION, $AUTOLOAD);
my $is_dosish;
my $is_epoc;
my $is_vms;
my $is_macos;
BEGIN {
$is_dosish = $^O eq 'dos' || $^O eq 'os2' || $^O eq 'MSWin32' || $^O eq 'NetWare';
$is_epoc = $^O eq 'epoc';
$is_vms = $^O eq 'VMS';
$is_macos = $^O eq 'MacOS';
$VERSION = '5.73';
}
AUTOLOAD {
my $sub = $AUTOLOAD;
autoload_sub($sub);
goto &$sub;
}
sub autoload_sub {
my $sub = shift;
my $filename = AutoLoader::find_filename( $sub );
my $save = $@;
local $!; # Do not munge the value.
eval { local $SIG{__DIE__}; require $filename };
if ($@) {
if (substr($sub,-9) eq '::DESTROY') {
no strict 'refs';
*$sub = sub {};
$@ = undef;
} elsif ($@ =~ /^Can't locate/) {
# The load might just have failed because the filename was too
# long for some old SVR3 systems which treat long names as errors.
# If we can successfully truncate a long name then it's worth a go.
# There is a slight risk that we could pick up the wrong file here
# but autosplit should have warned about that when splitting.
if ($filename =~ s/(\w{12,})\.al$/substr($1,0,11).".al"/e){
eval { local $SIG{__DIE__}; require $filename };
}
}
if ($@){
$@ =~ s/ at .*\n//;
my $error = $@;
require Carp;
Carp::croak($error);
}
}
$@ = $save;
return 1;
}
sub find_filename {
my $sub = shift;
my $filename;
# Braces used to preserve $1 et al.
{
# Try to find the autoloaded file from the package-qualified
# name of the sub. e.g., if the sub needed is
# Getopt::Long::GetOptions(), then $INC{Getopt/Long.pm} is
# something like '/usr/lib/perl5/Getopt/Long.pm', and the
# autoload file is '/usr/lib/perl5/auto/Getopt/Long/GetOptions.al'.
#
# However, if @INC is a relative path, this might not work. If,
# for example, @INC = ('lib'), then $INC{Getopt/Long.pm} is
# 'lib/Getopt/Long.pm', and we want to require
# 'auto/Getopt/Long/GetOptions.al' (without the leading 'lib').
# In this case, we simple prepend the 'auto/' and let the
# C<require> take care of the searching for us.
my ($pkg,$func) = ($sub =~ /(.*)::([^:]+)$/);
$pkg =~ s#::#/#g;
if (defined($filename = $INC{"$pkg.pm"})) {
if ($is_macos) {
$pkg =~ tr#/#:#;
$filename = undef
unless $filename =~ s#^(.*)$pkg\.pm\z#$1auto:$pkg:$func.al#s;
} else {
$filename = undef
unless $filename =~ s#^(.*)$pkg\.pm\z#$1auto/$pkg/$func.al#s;
}
# if the file exists, then make sure that it is a
# a fully anchored path (i.e either '/usr/lib/auto/foo/bar.al',
# or './lib/auto/foo/bar.al'. This avoids C<require> searching
# (and failing) to find the 'lib/auto/foo/bar.al' because it
# looked for 'lib/lib/auto/foo/bar.al', given @INC = ('lib').
if (defined $filename and -r $filename) {
unless ($filename =~ m|^/|s) {
if ($is_dosish) {
unless ($filename =~ m{^([a-z]:)?[\\/]}is) {
if ($^O ne 'NetWare') {
$filename = "./$filename";
} else {
$filename = "$filename";
}
}
}
elsif ($is_epoc) {
unless ($filename =~ m{^([a-z?]:)?[\\/]}is) {
$filename = "./$filename";
}
}
elsif ($is_vms) {
# XXX todo by VMSmiths
$filename = "./$filename";
}
elsif (!$is_macos) {
$filename = "./$filename";
}
}
}
else {
$filename = undef;
}
}
unless (defined $filename) {
# let C<require> do the searching
$filename = "auto/$sub.al";
$filename =~ s#::#/#g;
}
}
return $filename;
}
sub import {
my $pkg = shift;
my $callpkg = caller;
#
# Export symbols, but not by accident of inheritance.
#
if ($pkg eq 'AutoLoader') {
if ( @_ and $_[0] =~ /^&?AUTOLOAD$/ ) {
no strict 'refs';
*{ $callpkg . '::AUTOLOAD' } = \&AUTOLOAD;
}
}
#
# Try to find the autosplit index file. Eg., if the call package
# is POSIX, then $INC{POSIX.pm} is something like
# '/usr/local/lib/perl5/POSIX.pm', and the autosplit index file is in
# '/usr/local/lib/perl5/auto/POSIX/autosplit.ix', so we require that.
#
# However, if @INC is a relative path, this might not work. If,
# for example, @INC = ('lib'), then
# $INC{POSIX.pm} is 'lib/POSIX.pm', and we want to require
# 'auto/POSIX/autosplit.ix' (without the leading 'lib').
#
(my $calldir = $callpkg) =~ s#::#/#g;
my $path = $INC{$calldir . '.pm'};
if (defined($path)) {
# Try absolute path name, but only eval it if the
# transformation from module path to autosplit.ix path
# succeeded!
my $replaced_okay;
if ($is_macos) {
(my $malldir = $calldir) =~ tr#/#:#;
$replaced_okay = ($path =~ s#^(.*)$malldir\.pm\z#$1auto:$malldir:autosplit.ix#s);
} else {
$replaced_okay = ($path =~ s#^(.*)$calldir\.pm\z#$1auto/$calldir/autosplit.ix#);
}
eval { require $path; } if $replaced_okay;
# If that failed, try relative path with normal @INC searching.
if (!$replaced_okay or $@) {
$path ="auto/$calldir/autosplit.ix";
eval { require $path; };
}
if ($@) {
my $error = $@;
require Carp;
Carp::carp($error);
}
}
}
sub unimport {
my $callpkg = caller;
no strict 'refs';
for my $exported (qw( AUTOLOAD )) {
my $symname = $callpkg . '::' . $exported;
undef *{ $symname } if \&{ $symname } == \&{ $exported };
*{ $symname } = \&{ $symname };
}
}
1;
__END__
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