Explore the possibility of implementing the CSS Region interface.

Source/bindings/scripts/generate_bindings.pl

 #!/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
@@ skipping 78 matching lines @@
     close FH;
 
     # $additionalIdlFiles is for IDL files not listed in the interface
     # dependencies file, namely generated IDL files for interfaces
     # (not partial interfaces), so we need to generate .h and .cpp files.
     if (!$idlFound and $additionalIdlFiles) {
         my @idlFiles = shellwords($additionalIdlFiles);
         $idlFound = grep { $_ and basename($_) eq basename($targetIdlFile) } @idlFiles;
     }
 
-    if (!$idlFound) {
+    if (!$idlFound and !($targetInterfaceName eq "CSSRegion")) {

[abucur, 2013/10/25 16:54:57]

This hack is necessary to allow the generation of bindings code for the
CSSRegion interface. This can surely be coded a lot nicer.

[abarth-chromium, 2013/10/25 16:57:24]

not lgtm due to this hack.

I think you've also got a use-after-free as described in my previous comment.

[Inactive, 2013/10/25 17:48:50]

If you want V8CSSRegion to be generated then CSSRegion should not be an
implemented IDL interface. Instead, move the IDL attributes to another interface
and have both Element and CSSRegion implement it.

         # IDL files for dependencies (partial interfaces and interfaces
         # implemented elsewhere). We generate empty .h and .cpp files just to
         # tell build scripts that outputs have been created.
         generateEmptyHeaderAndCpp($targetInterfaceName, $outputDirectory);
         exit 0;
     }
 }
 
 # Parse the target IDL file.
 my $targetParser = idl_parser->new(!$verbose);
@@ skipping 187 matching lines @@
                 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 bindings/scripts/IDLAttributes.txt and add explanations to the Blink IDL document (http://chromium.org/blink/webidl).
 ";
     }
 }