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#!/usr/bin/perl -w
#
# Copyright (C) 2005 Apple Computer, Inc.
# Copyright (C) 2006 Anders Carlsson <andersca@mac.com>
#
# This file is part of WebKit
#
# 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.
#
# This script is a temporary hack.
# Files are generated in the source directory, when they really should go
# to the DerivedSources directory.
# This should also eventually be a build rule driven off of .idl files
# however a build rule only solution is blocked by several radars:
# <rdar://problems/4251781&4251785>
use strict;
use File::Path;
use File::Basename;
use Getopt::Long;
use Text::ParseWords;
use Data::Dumper;
use Cwd;
use IDLParser;
use CodeGenerator;
my @idlDirectories;
my $outputDirectory;
my $outputHeadersDirectory;
my $generator;
my $defines;
my $filename;
my $prefix;
my $preprocessor;
my $writeDependencies;
my $verbose;
my $supplementalDependencyFile;
my $additionalIdlFiles;
GetOptions('include=s@' => \@idlDirectories,
'outputDir=s' => \$outputDirectory,
'outputHeadersDir=s' => \$outputHeadersDirectory,
'generator=s' => \$generator,
'defines=s' => \$defines,
'filename=s' => \$filename,
'prefix=s' => \$prefix,
'preprocessor=s' => \$preprocessor,
'verbose' => \$verbose,
'write-dependencies' => \$writeDependencies,
'supplementalDependencyFile=s' => \$supplementalDependencyFile,
'additionalIdlFiles=s' => \$additionalIdlFiles);
my $targetIdlFile = $ARGV[0];
die('Must specify input file.') unless defined($targetIdlFile);
die('Must specify generator') unless defined($generator);
die('Must specify output directory.') unless defined($outputDirectory);
if (!$outputHeadersDirectory) {
$outputHeadersDirectory = $outputDirectory;
}
$targetIdlFile = Cwd::realpath($targetIdlFile);
if ($verbose) {
print "$generator: $targetIdlFile\n";
}
my $targetInterfaceName = fileparse(basename($targetIdlFile), ".idl");
my $idlFound = 0;
my @supplementedIdlFiles;
if ($supplementalDependencyFile) {
# The format of a supplemental dependency file:
#
# DOMWindow.idl P.idl Q.idl R.idl
# Document.idl S.idl
# Event.idl
# ...
#
# The above indicates that DOMWindow.idl is supplemented by P.idl, Q.idl and R.idl,
# Document.idl is supplemented by S.idl, and Event.idl is supplemented by no IDLs.
# The IDL that supplements another IDL (e.g. P.idl) never appears in the dependency file.
open FH, "< $supplementalDependencyFile" or die "Cannot open $supplementalDependencyFile\n";
while (my $line = <FH>) {
my ($idlFile, @followingIdlFiles) = split(/\s+/, $line);
if ($idlFile and basename($idlFile) eq basename($targetIdlFile)) {
$idlFound = 1;
@supplementedIdlFiles = @followingIdlFiles;
}
}
close FH;
# $additionalIdlFiles is list of IDL files which should not be included in
# DerivedSources*.cpp (i.e. they are not described in the supplemental
# dependency file) but should generate .h and .cpp files.
if (!$idlFound and $additionalIdlFiles) {
my @idlFiles = shellwords($additionalIdlFiles);
$idlFound = grep { $_ and basename($_) eq basename($targetIdlFile) } @idlFiles;
}
if (!$idlFound) {
my $codeGen = CodeGenerator->new(\@idlDirectories, $generator, $outputDirectory, $outputHeadersDirectory, 0, $preprocessor, $writeDependencies, $verbose);
# We generate empty .h and .cpp files just to tell build scripts that .h and .cpp files are created.
generateEmptyHeaderAndCpp($codeGen->FileNamePrefix(), $targetInterfaceName, $outputHeadersDirectory, $outputDirectory);
exit 0;
}
}
# Parse the target IDL file.
my $targetParser = IDLParser->new(!$verbose);
my $targetDocument = $targetParser->Parse($targetIdlFile, $defines, $preprocessor);
# print Dumper($targetDocument);
# exit;
foreach my $idlFile (@supplementedIdlFiles) {
next if $idlFile eq $targetIdlFile;
my $interfaceName = fileparse(basename($idlFile), ".idl");
my $parser = IDLParser->new(!$verbose);
my $document = $parser->Parse($idlFile, $defines, $preprocessor);
foreach my $interface (@{$document->interfaces}) {
if ($interface->extendedAttributes->{"Supplemental"} and $interface->extendedAttributes->{"Supplemental"} eq $targetInterfaceName) {
my $targetDataNode;
foreach my $interface (@{$targetDocument->interfaces}) {
if ($interface->name eq $targetInterfaceName) {
$targetDataNode = $interface;
last;
}
}
die "Not found an interface ${targetInterfaceName} in ${targetInterfaceName}.idl." unless defined $targetDataNode;
# Support [Supplemental] for attributes.
foreach my $attribute (@{$interface->attributes}) {
# Record that this attribute is implemented by $interfaceName.
$attribute->signature->extendedAttributes->{"ImplementedBy"} = $interfaceName;
# Add interface-wide extended attributes to each attribute.
foreach my $extendedAttributeName (keys %{$interface->extendedAttributes}) {
next if ($extendedAttributeName eq "Supplemental");
$attribute->signature->extendedAttributes->{$extendedAttributeName} = $interface->extendedAttributes->{$extendedAttributeName};
}
push(@{$targetDataNode->attributes}, $attribute);
}
# Support [Supplemental] for methods.
foreach my $function (@{$interface->functions}) {
# Record that this method is implemented by $interfaceName.
$function->signature->extendedAttributes->{"ImplementedBy"} = $interfaceName;
# Add interface-wide extended attributes to each method.
foreach my $extendedAttributeName (keys %{$interface->extendedAttributes}) {
next if ($extendedAttributeName eq "Supplemental");
$function->signature->extendedAttributes->{$extendedAttributeName} = $interface->extendedAttributes->{$extendedAttributeName};
}
push(@{$targetDataNode->functions}, $function);
}
# Support [Supplemental] for constants.
foreach my $constant (@{$interface->constants}) {
# Record that this constant is implemented by $interfaceName.
$constant->extendedAttributes->{"ImplementedBy"} = $interfaceName;
# Add interface-wide extended attributes to each constant.
foreach my $extendedAttributeName (keys %{$interface->extendedAttributes}) {
next if ($extendedAttributeName eq "Supplemental");
$constant->extendedAttributes->{$extendedAttributeName} = $interface->extendedAttributes->{$extendedAttributeName};
}
push(@{$targetDataNode->constants}, $constant);
}
}
}
}
# Generate desired output for the target IDL file.
my $codeGen = CodeGenerator->new(\@idlDirectories, $generator, $outputDirectory, $outputHeadersDirectory, 0, $preprocessor, $writeDependencies, $verbose, $targetIdlFile);
$codeGen->ProcessDocument($targetDocument, $defines);
sub generateEmptyHeaderAndCpp
{
my ($prefix, $targetInterfaceName, $outputHeadersDirectory, $outputDirectory) = @_;
my $headerName = "${prefix}${targetInterfaceName}.h";
my $cppName = "${prefix}${targetInterfaceName}.cpp";
my $contents = "/*
This file is generated just to tell build scripts that $headerName and
$cppName are created for ${targetInterfaceName}.idl, and thus
prevent the build scripts from trying to generate $headerName and
$cppName at every build. This file must not be tried to compile.
*/
";
open FH, "> ${outputHeadersDirectory}/${headerName}" or die "Cannot open $headerName\n";
print FH $contents;
close FH;
open FH, "> ${outputDirectory}/${cppName}" or die "Cannot open $cppName\n";
print FH $contents;
close FH;
}
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