10 indirect - Lexically warn about using the indirect object syntax.
26 my $x = new Apple 1, 2, 3; # warns
29 my $y = new Pear; # ok
32 if (defied $foo) { ... } # croaks, note the typo
36 When enabled (or disabled as some may prefer to say, since you actually turn it on by calling C<no indirect>), this pragma warns about indirect object syntax constructs that may have slipped into your code. This syntax is now considered harmful, since its parsing has many quirks and its use is error prone (when C<sub> isn't defined, C<sub $x> is actually interpreted as C<< $x->sub >>).
38 It currently does not warn when the object is enclosed between braces (like C<meth { $obj } @args>) or for core functions (C<print> or C<say>). This may change in the future, or may be added as optional features that would be enabled by passing options to C<unimport>.
40 This module is B<not> a source filter.
44 =head2 C<unimport @opts>
46 Magically called when C<no indirect @opts> is encountered. Turns the module on. If C<@opts> contains C<':fatal'>, the module will croak on the first indirect syntax met.
50 Magically called at each C<use indirect>. Turns the module off.
56 XSLoader::load(__PACKAGE__, $VERSION);
60 $^H{indirect} = undef;
64 (undef, my $type) = @_;
66 $^H{indirect} = (defined $type and $type eq ':fatal') ? 2 : 1;
73 L<XSLoader> (standard since perl 5.006).
77 C<meth $obj> (no semicolon) at the end of a file won't be seen as an indirect object syntax, although it will as soon as there is another token before the end (as in C<meth $obj;> or C<meth $obj 1>).
81 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
83 You can contact me by mail or on C<irc.perl.org> (vincent).
87 Please report any bugs or feature requests to C<bug-indirect at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=indirect>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
91 You can find documentation for this module with the perldoc command.
95 Tests code coverage report is available at L<http://www.profvince.com/perl/cover/indirect>.
97 =head1 ACKNOWLEDGEMENTS
99 Bram, for motivation and advices.
101 =head1 COPYRIGHT & LICENSE
103 Copyright 2008 Vincent Pit, all rights reserved.
105 This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.