Simplify Go's Mojom Type Generator

mojo/public/tools/bindings/run_code_generators.py

 #!/usr/bin/env python
 # Copyright 2015 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.
 #
 # This script accepts the output of version 2 of the mojom parser and uses that
 # data to invoke the code generators.
 #
 # This script is not related mojom_bindings_generator.py (which is part of v1
 # of the mojom parser pipeline).
@@ skipping 21 matching lines @@
                       default=None,
                       help='Location of the compiled python bindings')
   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",
                       help="comma-separated list of generators")
   parser.add_argument("-d", "--depth", dest="depth", default=".",
                       help="relative path to the root of the source tree.")
+  parser.add_argument("--generate-type-info", dest="generate_type_info",
+                      action="store_true",
+                      help="generate mojom type descriptors")
+  parser.add_argument("--no-generate-type-info", dest="generate_type_info",
+                      action="store_false",
+                      help="do not generate mojom type descriptors")
+  parser.set_defaults(generate_type_info=True)
 
   return parser.parse_known_args()
 
 
 def _FixPath():
   # We need to parse command line args before imports so we can find out where
   # the python bindings are located and add them to sys.path.
   args, _ = _ParseCLIArgs()
   py_bindings_dir = args.py_bindings_dir
   if not py_bindings_dir:
@@ skipping 103 matching lines @@
     FixModulePath(module, os.path.abspath(args.depth))
     for generator_module in generator_modules:
       generator = generator_module.Generator(module, args.output_dir)
 
       # Look at unparsed args for generator-specific args.
       filtered_args = []
       if hasattr(generator_module, 'GENERATOR_PREFIX'):
         prefix = '--' + generator_module.GENERATOR_PREFIX + '_'
         filtered_args = [arg for arg in remaining_args
                          if arg.startswith(prefix)]
+      if args.generate_type_info:
+        filtered_args.append("--generate_type_info")
 
       generator.GenerateFiles(filtered_args)
 
 
 if __name__ == "__main__":
   sys.exit(main())