8 use base qw/B::Deparse/;
12 B::RecDeparse - Deparse recursively into subroutines.
20 our $VERSION = '0.01';
24 perl -MO=RecDeparse,deparse,[@B__Deparse_opts],level,-1 [ -e '...' | bleh.pl ]
29 my $brd = B::RecDeparse->new(deparse => [ @b__deparse_opts ], level => $level);
30 my $code = $brd->coderef2text(sub { ... });
34 This module extends L<B::Deparse> by making you recursively replace subroutine calls encountered when deparsing.
36 Please refer to L<B::Deparse> documentation for what to do and how to do it. Besides the constructor syntax, everything should work the same for the two modules.
40 =head2 C<< new < deparse => [ @B__Deparse_opts ], level => $level > >>
42 The L<B::RecDeparse> object constructor. You can specify the underlying L<B::Deparse> constructor arguments by passing a string or an array reference as the value of the C<deparse> key. The C<level> option expects an integer that specifies how many levels of recursions are allowed : C<-1> means infinite while C<0> means none and match L<B::Deparse> behaviour.
47 croak 'Optional arguments must be passed as key/value pairs' if @_ % 2;
49 my $deparse = $args{deparse};
50 if (defined $deparse) {
52 $deparse = [ $deparse ];
53 } elsif (ref $deparse ne 'ARRAY') {
59 my $level = $args{level};
60 $level = -1 unless defined $level;
62 return $deparse, $level;
67 $class = ref($class) || $class || __PACKAGE__;
68 my ($deparse, $level) = _parse_args(@_);
69 my $self = bless $class->SUPER::new(@$deparse), $class;
70 $self->{brd_level} = $level;
75 return $_[0]->{brd_level} >= 0 && $_[0]->{brd_cur} >= $_[0]->{brd_level}
79 my $bd = B::Deparse->new();
81 my ($deparse, $level) = _parse_args(@args);
82 my $compiler = $bd->coderef2text(B::Deparse::compile(@$deparse));
84 ['"]? B::Deparse ['"]? \s* -> \s* (new) \s* \( ([^\)]*) \)
85 /B::RecDeparse->$1(deparse => [ $2 ], level => $level)/gx;
86 $compiler = eval 'sub ' . $compiler;
95 $self->SUPER::init(@_);
98 my $key = $; . __PACKAGE__ . $;;
100 # p31268 made pp_entersub call single_delim
102 my $oldsd = *B::Deparse::single_delim{CODE};
103 no warnings 'redefine';
104 *B::Deparse::single_delim = sub {
106 if ($body =~ s/^$key//) {
116 $self->{brd_sub} = 1;
117 my $body = $self->SUPER::pp_entersub(@_);
118 $self->{brd_sub} = 0;
119 $body =~ s/^&\s*(\w)/$1/ if not $self->_recurse;
125 $self->{brd_sub} = 0;
126 my $body = $self->SUPER::pp_refgen(@_);
127 $self->{brd_sub} = 1;
134 if ($self->{brd_sub} <= 0 || $self->_recurse) {
135 $body = $self->SUPER::pp_gv(@_);
137 my $gv = $self->gv_or_padgv($_[0]);
139 $body = 'sub ' . $self->indent($self->deparse_sub($gv->CV));
144 $body = $key . $body;
154 =head2 C<pp_entersub>
160 Functions and methods from L<B::Deparse> overriden by this module. Never call them directly.
162 Otherwise, L<B::RecDeparse> inherits all methods from L<B::Deparse>.
166 An object-oriented module shouldn't export any function, and so does this one.
170 L<Carp> (standard since perl 5), L<B::Deparse> (since perl 5.005).
174 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
176 You can contact me by mail or on #perl @ FreeNode (vincent or Prof_Vince).
180 Please report any bugs or feature requests to C<bug-b-recdeparse at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=B-RecDeparse>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
184 You can find documentation for this module with the perldoc command.
186 perldoc B::RecDeparse
188 Tests code coverage report is available at L<http://www.profvince.com/perl/cover/B-RecDeparse>.
190 =head1 COPYRIGHT & LICENSE
192 Copyright 2008 Vincent Pit, all rights reserved.
194 This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
198 1; # End of B::RecDeparse