Mojo C++ bindings: support enum validation.

mojo/public/tools/bindings/pylib/mojom/generate/module.py

 # 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.
 
 # This module's classes provide an interface to mojo modules. Modules are
 # collections of interfaces and structs to be used by mojo ipc clients and
 # servers.
 #
 # A simple interface would be created this way:
 # module = mojom.generate.module.Module('Foo')
@@ skipping 113 matching lines @@
   NULLABLE_STRING,
   NULLABLE_HANDLE,
   NULLABLE_DCPIPE,
   NULLABLE_DPPIPE,
   NULLABLE_MSGPIPE,
   NULLABLE_SHAREDBUFFER
 )
 
 
 ATTRIBUTE_MIN_VERSION = 'MinVersion'
+ATTRIBUTE_EXTENSIBLE = 'Extensible'
 
 
 class NamedValue(object):
   def __init__(self, module, parent_kind, name):
     self.module = module
     self.namespace = module.namespace
     self.parent_kind = parent_kind
     self.name = name
     self.imported_from = None
 
@@ skipping 294 matching lines @@
     self.name = name
     self.imported_from = None
     if name is not None:
       spec = 'x:' + name
     else:
       spec = None
     Kind.__init__(self, spec)
     self.fields = []
     self.attributes = attributes
 
+  @property
+  def extensible(self):
+    return self.attributes.get(ATTRIBUTE_EXTENSIBLE, False) \
+        if self.attributes else False
+
 
 class Module(object):
   def __init__(self, name=None, namespace=None, attributes=None):
     self.name = name
     self.path = name
     self.namespace = namespace
     self.structs = []
     self.unions = []
     self.interfaces = []
     self.kinds = {}
@@ skipping 191 matching lines @@
   visited_kinds = set()
   for method in interface.methods:
     for param in method.parameters:
       if _ContainsAssociatedKinds(param.kind, visited_kinds):
         return True
     if method.response_parameters != None:
       for param in method.response_parameters:
         if _ContainsAssociatedKinds(param.kind, visited_kinds):
           return True
   return False