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#!/usr/bin/env perl
# Copyright (c) 2002 MySQL AB, 2009 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA
die "No files specified\n" unless $ARGV[0];
$ctags="exctags -x -f - --c-types=f -u";
sub get_tag {
local $.; local $_=<TAGS>;
($symbol, $line)= /^(.*\S)\s+function\s+(\d+)/;
$symbol=$1 if /[\s*]([^\s*]+)\s*\(/;
$line=1e50 unless $line;
}
while($src=shift)
{
warn "==> $src\n";
$dst=$src.$$;
open(TAGS, "$ctags $src|") || die "Cannot exec('$ctags $src'): $!";
open(SRC, "<$src") || die "Cannot open $src: $!";
open(DST, ">$dst") || die "Cannot create $dst: $!";
select DST;
&get_tag;
$in_func=0;
while(<SRC>)
{
my $orig=$_;
if ($in_func)
{
if (/\breturn\b/ && !/\/\*.*\breturn\b.*\*\// && !/;/ )
{
$_.=<SRC> until /;/;
}
s/(?<=\s)return\s*;/DBUG_VOID_RETURN;/;
s/(?<=\s)return\s*(.+)\s*;/DBUG_RETURN(\1);/s;
$ret_line=$. if /DBUG_(VOID_)?RETURN/; #{{
print "$tab DBUG_VOID_RETURN;\n" if /^$tab}/ && $ret_line < $.-1;
$in_func=0 if /^$tab}/;
warn "$src:".($.-1)."\t$orig" if /\breturn\b/;
}
print;
next if $. < $line;
die "Something wrong: \$.=$., \$line=$line, \$symbol=$symbol\n" if $. > $line;
&get_tag && next if /^\s*inline /;
print $_=<SRC> until /{/; $tab=$`;
&get_tag && next if /}/; # skip one-liners
$semicolon=1;
while(<SRC>)
{
$skip=!$semicolon;
$semicolon= /;\s*$/;
print && next if $skip ||
(/^\s+\w+((::\w+)?|<\w+>)\s+\**\w+/ && !/^\s*return\b/);
last if /DBUG_ENTER/;
print "$tab DBUG_ENTER(\"$symbol\");\n";
print "\n" unless $_ eq "\n";
last;
}
$in_func=1;
&get_tag;
redo;
}
close SRC;
close DST;
close TAGS;
unlink("$src.orig");
rename($src, "$src.orig") || die "Cannot rename $src to $src.orig: $!";
rename($dst, $src) || die "Cannot rename $dst to $src: $!";
}
warn "All done!\n";
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