6 AutoLoader - load functions only on demand
13 @ISA = (Exporter, AutoLoader);
17 This module tells its users that functions in the FOOBAR package are to be
18 autoloaded from F<auto/$AUTOLOAD.al>. See L<perlsub/"Autoloading">.
23 my $name = "auto/$AUTOLOAD.al";
27 # The load might just have failed because the filename was too
28 # long for some old SVR3 systems which treat long names as errors.
29 # If we can succesfully truncate a long name then it's worth a go.
30 # There is a slight risk that we could pick up the wrong file here
31 # but autosplit should have warned about that when splitting.
32 if ($name =~ s/(\w{12,})\.al$/substr($1,0,11).".al"/e){
35 elsif ($AUTOLOAD =~ /::DESTROY$/) {
36 # eval "sub $AUTOLOAD {}";
44 $DB::sub = $AUTOLOAD; # Now debugger know where we are.
49 my ($callclass, $callfile, $callline,$path,$callpack) = caller(0);
50 ($callpack = $callclass) =~ s#::#/#;
51 # Try to find the autosplit index file. Eg., if the call package
52 # is POSIX, then $INC{POSIX.pm} is something like
53 # '/usr/local/lib/perl5/POSIX.pm', and the autosplit index file is in
54 # '/usr/local/lib/perl5/auto/POSIX/autosplit.ix', so we require that.
56 # However, if @INC is a relative path, this might not work. If,
57 # for example, @INC = ('lib'), then
58 # $INC{POSIX.pm} is 'lib/POSIX.pm', and we want to require
59 # 'auto/POSIX/autosplit.ix' (without the leading 'lib').
61 if (defined($path = $INC{$callpack . '.pm'})) {
62 # Try absolute path name.
63 $path =~ s#^(.*)$callpack\.pm$#$1auto/$callpack/autosplit.ix#;
64 eval { require $path; };
65 # If that failed, try relative path with normal @INC searching.
67 $path ="auto/$callpack/autosplit.ix";
68 eval { require $path; };