Generate ax enums from idl.

tools/json_schema_compiler/h_generator.py

Index: tools/json_schema_compiler/h_generator.py
diff --git a/tools/json_schema_compiler/h_generator.py b/tools/json_schema_compiler/h_generator.py
index 0a2dc89003cb3d23f8f377f13bb2654a2d881e5c..1c347f5b07b7ecff5ce05d60c3f28225cb3b9f5a 100644
--- a/tools/json_schema_compiler/h_generator.py
+++ b/tools/json_schema_compiler/h_generator.py
@@ -142,9 +142,10 @@ class _Generator(object):
     """
     c = Code()
     c.Sblock('enum %s {' % enum_name)
-    c.Append(self._type_helper.GetEnumNoneValue(type_) + ',')
     for value in type_.enum_values:
       c.Append(self._type_helper.GetEnumValue(type_, value) + ',')
+    # Add any non-explicit enum values last.
+    c.Append(self._type_helper.GetEnumNoneValue(type_))
     return c.Eblock('};')
 
   def _GenerateFields(self, props):
@@ -206,9 +207,10 @@ class _Generator(object):
       if type_.description:
         c.Comment(type_.description)
       c.Sblock('enum %(classname)s {')
-      c.Append('%s,' % self._type_helper.GetEnumNoneValue(type_))
       for value in type_.enum_values:
         c.Append('%s,' % self._type_helper.GetEnumValue(type_, value))
+      # Add any non-explicit enum values last.
+      c.Append('%s,' % self._type_helper.GetEnumNoneValue(type_))
       # Top level enums are in a namespace scope so the methods shouldn't be
       # static. On the other hand, those declared inline (e.g. in an object) do.
       maybe_static = '' if is_toplevel else 'static '