This is 0.04

[perl/modules/B-RecDeparse.git] / lib / B / RecDeparse.pm

diff --git a/lib/B/RecDeparse.pm b/lib/B/RecDeparse.pm
index fb712d91d660f8405d7a9f728dc45d051bfbb39d..7134f5cc2a108e8c5bd16b81222468df2890bedc 100644 (file)
--- a/lib/B/RecDeparse.pm
+++ b/lib/B/RecDeparse.pm
@@ -1,9 +1,12 @@
 package B::RecDeparse;
 
+use 5.008;
+
 use strict;
 use warnings;
 
 use Carp qw/croak/;
+use Config;
 
 use base qw/B::Deparse/;
 
@@ -13,11 +16,11 @@ B::RecDeparse - Deparse recursively into subroutines.
 
 =head1 VERSION
 
-Version 0.01
+Version 0.04
 
 =cut
 
-our $VERSION = '0.01';
+our $VERSION = '0.04';
 
 =head1 SYNOPSIS
 
@@ -31,7 +34,7 @@ our $VERSION = '0.01';
 
 =head1 DESCRIPTION
 
-This module extends L<B::Deparse> by making you recursively replace subroutine calls encountered when deparsing.
+This module extends L<B::Deparse> by making it recursively replace subroutine calls encountered when deparsing.
 
 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.
 
@@ -43,6 +46,14 @@ The L<B::RecDeparse> object constructor. You can specify the underlying L<B::Dep
 
 =cut
 
+use constant {
+ # p31268 made pp_entersub call single_delim
+ FOOL_SINGLE_DELIM =>
+     ($^V ge v5.9.5)
+  || ($^V lt v5.9.0 and $^V ge v5.8.9)
+  || ($Config{perl_patchlevel} && $Config{perl_patchlevel} >= 31268)
+};
+
 sub _parse_args {
  croak 'Optional arguments must be passed as key/value pairs' if @_ % 2;
  my %args = @_;
@@ -72,7 +83,7 @@ sub new {
 }
 
 sub _recurse {
- return $_[0]->{brd_level} >= 0 && $_[0]->{brd_cur} >= $_[0]->{brd_level}
+ return $_[0]->{brd_level} < 0 || $_[0]->{brd_cur} < $_[0]->{brd_level}
 }
 
 sub compile {
@@ -97,13 +108,12 @@ sub init {
 
 my $key = $; . __PACKAGE__ . $;;
 
-# p31268 made pp_entersub call single_delim
-if ($^V ge v5.9.5) {
+if (FOOL_SINGLE_DELIM) {
  my $oldsd = *B::Deparse::single_delim{CODE};
  no warnings 'redefine';
  *B::Deparse::single_delim = sub {
   my $body = $_[2];
-  if ($body =~ s/^$key//) {
+  if ((caller 1)[0] eq __PACKAGE__ and $body =~ s/^$key//) {
    return $body;
   } else {
    $oldsd->(@_);
@@ -113,35 +123,37 @@ if ($^V ge v5.9.5) {
 
 sub pp_entersub {
  my $self = shift;
- $self->{brd_sub} = 1;
- my $body = $self->SUPER::pp_entersub(@_);
- $self->{brd_sub} = 0;
- $body =~ s/^&\s*(\w)/$1/ if not $self->_recurse;
+ my $body = do {
+  local $self->{brd_sub} = 1;
+  $self->SUPER::pp_entersub(@_);
+ };
+ $body =~ s/^&\s*(\w)/$1/ if $self->_recurse;
  return $body;
 }
 
 sub pp_refgen {
  my $self = shift;
- $self->{brd_sub} = 0;
- my $body = $self->SUPER::pp_refgen(@_);
- $self->{brd_sub} = 1;
- return $body;
+ return do {
+  local $self->{brd_sub} = 0;
+  $self->SUPER::pp_refgen(@_);
+ }
 }
 
 sub pp_gv {
  my $self = shift;
  my $body;
- if ($self->{brd_sub} <= 0 || $self->_recurse) {
+ if ($self->{brd_sub} <= 0 || !$self->_recurse) {
   $body = $self->SUPER::pp_gv(@_);
  } else {
   my $gv = $self->gv_or_padgv($_[0]);
-  ++$self->{brd_cur};
-  $body = 'sub ' . $self->indent($self->deparse_sub($gv->CV));
-  --$self->{brd_cur};
-  if ($^V lt v5.9.5) {
-   $body .= '->';
-  } else {
+  $body = do {
+   local @{$self}{qw/brd_sub brd_cur/} = (0, $self->{brd_cur} + 1);
+   'sub ' . $self->indent($self->deparse_sub($gv->CV));
+  };
+  if (FOOL_SINGLE_DELIM) {
    $body = $key . $body;
+  } else {
+   $body .= '->';
   }
  }
  return $body;
@@ -157,7 +169,7 @@ sub pp_gv {
 
 =head2 C<pp_gv>
 
-Functions and methods from L<B::Deparse> overriden by this module. Never call them directly.
+Functions and methods from L<B::Deparse> reimplemented by this module. Never call them directly.
 
 Otherwise, L<B::RecDeparse> inherits all methods from L<B::Deparse>.
 
@@ -167,13 +179,13 @@ An object-oriented module shouldn't export any function, and so does this one.
 
 =head1 DEPENDENCIES
 
-L<Carp> (standard since perl 5), L<B::Deparse> (since perl 5.005).
+L<Carp> (standard since perl 5), L<Config> (since perl 5.00307) and L<B::Deparse> (since perl 5.005).
 
 =head1 AUTHOR
 
 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
 
-You can contact me by mail or on #perl @ FreeNode (vincent or Prof_Vince).
+You can contact me by mail or on C<irc.perl.org> (vincent).
 
 =head1 BUGS