Implement unions as members of structs.

mojo/public/tools/bindings/mojom_bindings_generator.py

 #!/usr/bin/env python
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """The frontend for the Mojo bindings system."""
 
 
 import argparse
 import imp
@@ skipping 177 matching lines @@
   parser = argparse.ArgumentParser(
       description="Generate bindings from mojom files.")
   parser.add_argument("filename", nargs="+",
                       help="mojom input file")
   parser.add_argument("-d", "--depth", dest="depth", default=".",
                       help="depth from source root")
   parser.add_argument("-o", "--output_dir", dest="output_dir", default=".",
                       help="output directory for generated files")
   parser.add_argument("-g", "--generators", dest="generators_string",
                       metavar="GENERATORS",
-                      default="c++,dart,go,javascript,java,python",
+                      default="c++",#,dart,go,javascript,java,python",
                       help="comma-separated list of generators")
   parser.add_argument("--debug_print_intermediate", action="store_true",
                       help="print the intermediate representation")
   parser.add_argument("-I", dest="import_directories", action="append",
                       metavar="directory", default=[],
                       help="add a directory to be searched for import files")
   parser.add_argument("--use_bundled_pylibs", action="store_true",
                       help="use Python modules bundled in the SDK")
   (args, remaining_args) = parser.parse_known_args()
 
   generator_modules = LoadGenerators(args.generators_string)
 
   fileutil.EnsureDirectoryExists(args.output_dir)
 
   processor = MojomProcessor(lambda filename: filename in args.filename)
   for filename in args.filename:
     processor.ProcessFile(args, remaining_args, generator_modules, filename)
 
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main())