Generate ax enums from idl.

tools/json_schema_compiler/cpp_util.py

 # Copyright (c) 2012 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.
 
 """Utilies and constants specific to Chromium C++ code.
 """
 
 from code import Code
 from datetime import datetime
 from model import PropertyType
@@ skipping 92 matching lines @@
   """Appends a space to |var| if it ends with a >, so that it can be compiled
   within generic types.
   """
   return ('%s ' % var) if var.endswith('>') else var
 
 
 def OpenNamespace(namespace):
   """Get opening root namespace declarations.
   """
   c = Code()
+  if namespace == '':
+    return c

[not at google - send to devlin, 2014/01/23 16:07:12]

why do you need these changes?

[David Tseng, 2014/01/23 17:44:42]

Check out ui/accessibility/accessibility.gyp and ax:root_namespace.

The namespace generated by the tool is root_namespace + namespace of the idl.

Unfortunately, if root namespace is empty, the tool generates an anonymous
namespace in the header file which isn't what we ever want I think.

For the existing ui/accessibility files, everything's placed under the ui
namespace, so we're forced to use ui.idl and namespace it into ui with an empty
namespace.

Would love to hear any alternatives to achieve the above.

[not at google - send to devlin, 2014/01/23 18:01:23]

I see. Can you leave out the root_namespace from the gyp file, or set it to None
or something? Having it as empty-string seems wrong if this is the intention.

[David Tseng, 2014/01/23 18:18:25]

Agreed. However, root_namespace is required and gyp doesn't like root_namespace
set to None (complains about Type error for NoneType).

   for component in namespace.split('::'):
     c.Append('namespace %s {' % component)
   return c
 
 
 def CloseNamespace(namespace):
   """Get closing root namespace declarations.
   """
   c = Code()
+  if namespace == '':
+    return c
   for component in reversed(namespace.split('::')):
     c.Append('}  // namespace %s' % component)
   return c
 
 
 def ConstantName(feature_name):
   """Returns a kName for a feature's name.
   """
   return ('k' + ''.join(word[0].upper() + word[1:]
       for word in feature_name.replace('.', ' ').split()))
 
 
 def CamelCase(unix_name):
   return ''.join(word.capitalize() for word in unix_name.split('_'))
 
 
 def ClassName(filepath):
   return CamelCase(os.path.split(filepath)[1])