#! /usr/bin/perl -w

#

# Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)

# Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>

#

# This library is free software; you can redistribute it and/or

# modify it under the terms of the GNU Library General Public

# License as published by the Free Software Foundation; either

# version 2 of the License, or (at your option) any later version.

#

# This library 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

# Library General Public License for more details.

#

# You should have received a copy of the GNU Library General Public License

# along with this library; see the file COPYING.LIB.  If not, write to

# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

# Boston, MA 02110-1301, USA.

use strict;

use File::Basename;

use Getopt::Long;

my $usage = basename($0) . " --prefix prefix [--offset offset] file";

my $rtype_template = quotemeta("#rtype#");

my $offset_template = quotemeta("#offset#");

my $op_template = quotemeta("#op#");

my $prefix;

my $offset = 32;

my $file;

my $getOptionsResult = GetOptions(

    'prefix=s' => \$prefix,

    'offset=i' => \$offset

);

$file = $ENV{"WEBKITDIR"} . $ARGV[0];

die "$usage\n" unless ($prefix and $file);

my $stub_template = "";

my $output_end = "";

my $stub = "";

my $rtype = "";

my $op = "";

print STDERR "Creating JIT stubs for $file \n";

open(IN, $file) or die "No such file $file";

while ( $_ = <IN> ) {

    if ( /^$prefix\_BEGIN\((.*)\)/ ) {

        $stub = $1;

        $stub =~ s/$offset_template/$offset/g;

        print $stub . "\n";

    }

    if ( /^$prefix\((.*)\)/ ) {

        $stub_template .= $1 . "\n";

    }

    if ( /^$prefix\_END\((.*)\)/ ) {

        $output_end .= $1 . "\n";

    }

    if ( /^DEFINE_STUB_FUNCTION\((.*), (.*)\)/ ) {

        $stub = $stub_template;

        $rtype = quotemeta($1);

        $op = quotemeta($2);

        $stub =~ s/$offset_template/$offset/g;

        $stub =~ s/$rtype_template/$rtype/g;

        $stub =~ s/$op_template/$op/g;

        $stub =~ s/\\\*/\*/g;

        print $stub;

    }

}

print $output_end;

close(IN);