9 use base qw/B::Deparse/;
13 B::RecDeparse - Deparse recursively into subroutines.
21 our $VERSION = '0.01';
25 perl -MO=RecDeparse,deparse,[@B__Deparse_opts],level,-1 [ -e '...' | bleh.pl ]
30 my $brd = B::RecDeparse->new(deparse => [ @b__deparse_opts ], level => $level);
31 my $code = $brd->coderef2text(sub { ... });
35 This module extends L<B::Deparse> by making you recursively replace subroutine calls encountered when deparsing.
37 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.
41 =head2 C<< new < deparse => [ @B__Deparse_opts ], level => $level > >>
43 The L<B::RecDeparse> object constructor. You can specify the underlying L<B::Deparse> constructor arguments by passing a string or an array reference as the value of the C<deparse> key. The C<level> option expects an integer that specifies how many levels of recursions are allowed : C<-1> means infinite while C<0> means none and match L<B::Deparse> behaviour.
48 # p31268 made pp_entersub call single_delim
51 || ($Config{perl_patchlevel} && $Config{perl_patchlevel} >= 31268)
55 croak 'Optional arguments must be passed as key/value pairs' if @_ % 2;
57 my $deparse = $args{deparse};
58 if (defined $deparse) {
60 $deparse = [ $deparse ];
61 } elsif (ref $deparse ne 'ARRAY') {
67 my $level = $args{level};
68 $level = -1 unless defined $level;
70 return $deparse, $level;
75 $class = ref($class) || $class || __PACKAGE__;
76 my ($deparse, $level) = _parse_args(@_);
77 my $self = bless $class->SUPER::new(@$deparse), $class;
78 $self->{brd_level} = $level;
83 return $_[0]->{brd_level} >= 0 && $_[0]->{brd_cur} >= $_[0]->{brd_level}
87 my $bd = B::Deparse->new();
89 my ($deparse, $level) = _parse_args(@args);
90 my $compiler = $bd->coderef2text(B::Deparse::compile(@$deparse));
92 ['"]? B::Deparse ['"]? \s* -> \s* (new) \s* \( ([^\)]*) \)
93 /B::RecDeparse->$1(deparse => [ $2 ], level => $level)/gx;
94 $compiler = eval 'sub ' . $compiler;
101 $self->{brd_cur} = 0;
102 $self->{brd_sub} = 0;
103 $self->SUPER::init(@_);
106 my $key = $; . __PACKAGE__ . $;;
108 if (FOOL_SINGLE_DELIM) {
109 my $oldsd = *B::Deparse::single_delim{CODE};
110 no warnings 'redefine';
111 *B::Deparse::single_delim = sub {
113 if ($body =~ s/^$key//) {
123 $self->{brd_sub} = 1;
124 my $body = $self->SUPER::pp_entersub(@_);
125 $self->{brd_sub} = 0;
126 $body =~ s/^&\s*(\w)/$1/ if not $self->_recurse;
132 $self->{brd_sub} = 0;
133 my $body = $self->SUPER::pp_refgen(@_);
134 $self->{brd_sub} = 1;
141 if ($self->{brd_sub} <= 0 || $self->_recurse) {
142 $body = $self->SUPER::pp_gv(@_);
144 my $gv = $self->gv_or_padgv($_[0]);
146 $body = 'sub ' . $self->indent($self->deparse_sub($gv->CV));
148 if (FOOL_SINGLE_DELIM) {
149 $body = $key . $body;
161 =head2 C<pp_entersub>
167 Functions and methods from L<B::Deparse> overriden by this module. Never call them directly.
169 Otherwise, L<B::RecDeparse> inherits all methods from L<B::Deparse>.
173 An object-oriented module shouldn't export any function, and so does this one.
177 L<Carp> (standard since perl 5), L<Config> (since perl 5.00307) and L<B::Deparse> (since perl 5.005).
181 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
183 You can contact me by mail or on #perl @ FreeNode (vincent or Prof_Vince).
187 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.
191 You can find documentation for this module with the perldoc command.
193 perldoc B::RecDeparse
195 Tests code coverage report is available at L<http://www.profvince.com/perl/cover/B-RecDeparse>.
197 =head1 COPYRIGHT & LICENSE
199 Copyright 2008 Vincent Pit, all rights reserved.
201 This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
205 1; # End of B::RecDeparse