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#!/usr/bin/perl -w
#
# Copyright (C) 2011 Google Inc. All rights reserved.
#
# 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;
use Cwd;
use IDLParser;
my $defines;
my $preprocessor;
my $verbose;
my $idlFilesList;
my $idlAttributesFile;
my $supplementalDependencyFile;
my $supplementalMakefileDeps;
GetOptions('defines=s' => \$defines,
'preprocessor=s' => \$preprocessor,
'verbose' => \$verbose,
'idlFilesList=s' => \$idlFilesList,
'idlAttributesFile=s' => \$idlAttributesFile,
'supplementalDependencyFile=s' => \$supplementalDependencyFile,
'supplementalMakefileDeps=s' => \$supplementalMakefileDeps);
die('Must specify #define macros using --defines.') unless defined($defines);
die('Must specify an output file using --supplementalDependencyFile.') unless defined($supplementalDependencyFile);
die('Must specify the file listing all IDLs using --idlFilesList.') unless defined($idlFilesList);
if ($verbose) {
print "Resolving [Supplemental=XXX] dependencies in all IDL files.\n";
}
open FH, "< $idlFilesList" or die "Cannot open $idlFilesList\n";
my @idlFiles = <FH>;
chomp(@idlFiles);
close FH;
# Parse all IDL files.
my %documents;
my %interfaceNameToIdlFile;
my %idlFileToInterfaceName;
foreach my $idlFile (@idlFiles) {
my $fullPath = Cwd::realpath($idlFile);
my $parser = IDLParser->new(!$verbose);
$documents{$fullPath} = $parser->Parse($idlFile, $defines, $preprocessor);
my $interfaceName = fileparse(basename($idlFile), ".idl");
$interfaceNameToIdlFile{$interfaceName} = $fullPath;
$idlFileToInterfaceName{$fullPath} = $interfaceName;
}
# Runs the IDL attribute checker.
my $idlAttributes = loadIDLAttributes($idlAttributesFile);
foreach my $idlFile (keys %documents) {
checkIDLAttributes($idlAttributes, $documents{$idlFile}, basename($idlFile));
}
# Resolves [Supplemental=XXX] dependencies.
my %supplementals;
foreach my $idlFile (keys %documents) {
$supplementals{$idlFile} = [];
}
foreach my $idlFile (keys %documents) {
foreach my $interface (@{$documents{$idlFile}->interfaces}) {
if ($interface->extendedAttributes->{"Supplemental"}) {
my $targetIdlFile = $interfaceNameToIdlFile{$interface->extendedAttributes->{"Supplemental"}};
push(@{$supplementals{$targetIdlFile}}, $idlFile);
# Treats as if this IDL file does not exist.
delete $supplementals{$idlFile};
}
}
}
# Outputs the dependency.
# 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";
foreach my $idlFile (sort keys %supplementals) {
print FH $idlFile, " @{$supplementals{$idlFile}}\n";
}
close FH;
if ($supplementalMakefileDeps) {
open MAKE_FH, "> $supplementalMakefileDeps" or die "Cannot open $supplementalMakefileDeps\n";
my @all_dependencies = [];
foreach my $idlFile (sort keys %supplementals) {
my $basename = $idlFileToInterfaceName{$idlFile};
my @dependencies = map { basename($_) } @{$supplementals{$idlFile}};
print MAKE_FH "JS${basename}.h: @{dependencies}\n";
print MAKE_FH "DOM${basename}.h: @{dependencies}\n";
print MAKE_FH "WebDOM${basename}.h: @{dependencies}\n";
foreach my $dependency (@dependencies) {
print MAKE_FH "${dependency}:\n";
}
}
close MAKE_FH;
}
sub loadIDLAttributes
{
my $idlAttributesFile = shift;
my %idlAttributes;
open FH, "<", $idlAttributesFile or die "Couldn't open $idlAttributesFile: $!";
while (my $line = <FH>) {
chomp $line;
next if $line =~ /^\s*#/;
next if $line =~ /^\s*$/;
if ($line =~ /^\s*([^=\s]*)\s*=?\s*(.*)/) {
my $name = $1;
$idlAttributes{$name} = {};
if ($2) {
foreach my $rightValue (split /\|/, $2) {
$rightValue =~ s/^\s*|\s*$//g;
$rightValue = "VALUE_IS_MISSING" unless $rightValue;
$idlAttributes{$name}{$rightValue} = 1;
}
} else {
$idlAttributes{$name}{"VALUE_IS_MISSING"} = 1;
}
} else {
die "The format of " . basename($idlAttributesFile) . " is wrong: line $.\n";
}
}
close FH;
return \%idlAttributes;
}
sub checkIDLAttributes
{
my $idlAttributes = shift;
my $document = shift;
my $idlFile = shift;
foreach my $interface (@{$document->interfaces}) {
checkIfIDLAttributesExists($idlAttributes, $interface->extendedAttributes, $idlFile);
foreach my $attribute (@{$interface->attributes}) {
checkIfIDLAttributesExists($idlAttributes, $attribute->signature->extendedAttributes, $idlFile);
}
foreach my $function (@{$interface->functions}) {
checkIfIDLAttributesExists($idlAttributes, $function->signature->extendedAttributes, $idlFile);
foreach my $parameter (@{$function->parameters}) {
checkIfIDLAttributesExists($idlAttributes, $parameter->extendedAttributes, $idlFile);
}
}
}
}
sub checkIfIDLAttributesExists
{
my $idlAttributes = shift;
my $extendedAttributes = shift;
my $idlFile = shift;
my $error;
OUTER: for my $name (keys %$extendedAttributes) {
if (!exists $idlAttributes->{$name}) {
$error = "Unknown IDL attribute [$name] is found at $idlFile.";
last OUTER;
}
if ($idlAttributes->{$name}{"*"}) {
next;
}
for my $rightValue (split /\s*\|\s*/, $extendedAttributes->{$name}) {
if (!exists $idlAttributes->{$name}{$rightValue}) {
$error = "Unknown IDL attribute [$name=" . $extendedAttributes->{$name} . "] is found at $idlFile.";
last OUTER;
}
}
}
if ($error) {
die "IDL ATTRIBUTE CHECKER ERROR: $error
If you want to add a new IDL attribute, you need to add it to WebCore/bindings/scripts/IDLAttributes.txt and add explanations to the WebKit IDL document (https://trac.webkit.org/wiki/WebKitIDL).
";
}
}
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