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tdesdk/scripts/add_trace.pl

125 lines
3.4 KiB

## add_trace.pl
## Script to add a kdDebug() call as the first line of each method
## including as many parameters as possible (i.e. those supported by kdDebug)
## Very useful for tracing.
##
## Usage: perl -i add_trace.pl myfile.cpp
##
## Generates all statement with kdDebug(0) so that it is very easy
## to remove them afterwards :
## perl -pi -e 'if (/kdDebug\(0\)/) { $_ = ""; }' myfile.cpp
## perl -pi -e 'if (/#include <kdebug.h> \/\/ inserted by add_trace/) { $_ = ""; }' myfile.cpp
##
## needs perl 5.8+ for the Tie::File module
##
## Written by David Faure <faure@kde.org>, licensed under pizzaware.
## 18/03/2000
use Tie::File;
sub insert_kdebug()
{
# inserts a line "include <kdebug.h>" at the beginning of each file
for ($i=0;$i<$#ARGV;$i++)
{
tie @LOG, 'Tie::File', $ARGV[$i];
unshift @LOG, '#include <kdebug.h> // inserted by add_trace';
}
}
insert_kdebug();
$insignature=0;
while (<>)
{
if ( $insignature )
{
$statement .= $_;
chop;
$oneline .= $_;
}
elsif ( /^[^\s]+\s*[^\s]+::[^\s]+/ && !/typedef\s/ && !/^\s*class\s/ && !/^[^\s]+\s*[^\s]+::[^\s]+.*;/ && !/ *\/\// )
# A function declaration starts. A function is not a typedef, not a class, not a command and not a comment.
{
$insignature = 1;
$statement = $_;
chop;
$oneline = $_;
}
elsif ( /^\/\/.*/)
{
# comment
# do nothing
$insignature = 0;
}
# [^\s]+ means, one ore more characters that are no spaces
elsif ( /^[^\s]+\s*[^\s]+::[^\s]+.*\}/ && !/typedef\s/ && !/^\s*class\s/ )
{
# declaration and implementation in one line
# do nothing
$insignature = 0;
}
if ( $insignature )
{
if ( /\{/ ) # End of signature
{
$insignature = 0;
$_ = $oneline;
#print STDERR "Signature : $_\n";
print $statement;
$line = " kdDebug(0)";
if ( m/([^\*\s]+::[^\s]+)\(/ )
{
$line = $line . " << \"$1\"";
}
## Ok now extract args
s/\/\*.*\*\///;
s/\s*\/\/.*//; # remove comments
s/^.*\([\s]*//; # Remove everything before first '('
s/\s*\)\s*:\s+.*$/,/; # Remove any ") : blah", replace with a ','
s/\s*\).*\{\s*$/,/; # Remove anything after ')', replace with a ','
s/ const[&] / /g;
#print STDERR "Args list : $_\n";
@args = split( ",", $_ );
foreach (@args)
{
s/^\s*//;
s/\s*$//;
#print STDERR "Argument: $_\n";
## Pointer ?
if ( m/[a-zA-Z0-9_\s]+\*\s*([a-zA-Z0-9_]+)/ ) {
$line = $line . " << \" $1=\" << " . $1;
}
## int, long ?
elsif ( m/^int\s+([a-zA-Z0-9_]+)/ || m/^long\s*([a-zA-Z0-9_]+)/ ) {
$line = $line . " << \" $1=\" << " . $1;
}
## bool
elsif ( m/^bool\s+([a-zA-Z0-9_]+)/ ) {
$line = $line . " << \" $1=\" << (" . $1 . " ? \"true\" : \"false\" )";
}
## TQString and friends
elsif ( m/TQString[\&\s]+([a-zA-Z0-9_]+)/ || m/QCString[\&\s]*([a-zA-Z0-9_]+)/ ) {
$line = $line . " << \" $1=\" << " . $1;
}
## KURL
elsif ( m/KURL[\&\s]+([a-zA-Z0-9_]+)/ ) {
$line = $line . " << \" $1=\" << " . $1 . ".url()";
}
}
$line = $line . " << endl;\n";
if ( !m/\}/ ) {print $line;}
#print STDERR "Debug call added : $line\n";
}
}
else
{
# Normal line
print;
}
}
if ( $insignature )
{
print STDERR "Warning, unterminated method signature !! Check the file !\n";
print $statement;
}