X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2Findirect.pm;h=6354a1361f30c36af3a672f88a8579d03b9928e0;hb=36e1f9a23b073751223769b71f1e84643913e592;hp=bc59529d18034f89c19587a867f6d717a62a4ce6;hpb=7808ca5448054d4528a34984d0068ae38f0ac9e9;p=perl%2Fmodules%2Findirect.git diff --git a/lib/indirect.pm b/lib/indirect.pm index bc59529..6354a13 100644 --- a/lib/indirect.pm +++ b/lib/indirect.pm @@ -1,5 +1,7 @@ package indirect; +use 5.008; + use strict; use warnings; @@ -9,13 +11,13 @@ indirect - Lexically warn about using the indirect object syntax. =head1 VERSION -Version 0.05 +Version 0.11 =cut our $VERSION; BEGIN { - $VERSION = '0.05'; + $VERSION = '0.11'; } =head1 SYNOPSIS @@ -37,35 +39,89 @@ It currently does not warn when the object is enclosed between braces (like C a source filter. +=cut + +BEGIN { + require XSLoader; + XSLoader::load(__PACKAGE__, $VERSION); +} + =head1 METHODS -=head2 C +=head2 C<< unimport [ hook => $hook | ':fatal' ] >> -Magically called when C is encountered. Turns the module on. If C<@opts> contains C<':fatal'>, the module will croak on the first indirect syntax met. +Magically called when C is encountered. +Turns the module on. +The policy to apply depends on what is first found in C<@opts> : -=head2 C +=over 4 -Magically called at each C. Turns the module off. +=item * + +If it's the string C<':fatal'>, the compilation will croak on the first indirect syntax met. + +=item * + +If the key/value pair C<< hook => $hook >> comes first, C<$hook> will be called for each error with the object name as C<$_[0]> and the method name as C<$_[1]>. + +=item * + +Otherwise, a warning will be emitted for each indirect construct. + +=back =cut -BEGIN { - require XSLoader; - XSLoader::load(__PACKAGE__, $VERSION); +my $msg = sub { "Indirect call of method \"$_[1]\" on object \"$_[0]\"" }; + +sub unimport { + shift; + + my $hook; + while (@_) { + my $arg = shift; + if ($arg eq 'hook') { + $hook = shift; + } elsif ($arg eq ':fatal') { + $hook = sub { die $msg->(@_) }; + } + last if $hook; + } + $hook = sub { warn $msg->(@_) } unless defined $hook; + + $^H |= 0x00020000; + $^H{+(__PACKAGE__)} = _tag($hook); + + (); } +=head2 C + +Magically called at each C. Turns the module off. + +=cut + sub import { - $^H{indirect} = undef; + $^H{+(__PACKAGE__)} = undef; + (); } -sub unimport { - (undef, my $type) = @_; - $^H{indirect} = (defined $type and $type eq ':fatal') ? 2 : 1; -} +=head1 CONSTANTS + +=head2 C + +True iff the module could have been built when thread-safety features. + +=head1 CAVEATS + +C (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 or C). + +With 5.8 perls, the pragma does not propagate into C. +This is due to a shortcoming in the way perl handles the hints hash, which is addressed in perl 5.10. =head1 DEPENDENCIES -L 5.9.4. +L 5.8. L (standard since perl 5.006). @@ -73,7 +129,7 @@ L (standard since perl 5.006). Vincent Pit, C<< >>, L. -You can contact me by mail or on #perl @ FreeNode (vincent or Prof_Vince). +You can contact me by mail or on C (vincent). =head1 BUGS @@ -93,7 +149,7 @@ Bram, for motivation and advices. =head1 COPYRIGHT & LICENSE -Copyright 2008 Vincent Pit, all rights reserved. +Copyright 2008-2009 Vincent Pit, all rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.