Check for conditionals used.

tools/dom/scripts/databasebuilder.py

 #!/usr/bin/python
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import copy
 import database
 import idlparser
 import logging
 import multiprocessing
@@ skipping 65 matching lines @@
                        % (file_name, e))
 
 
 class DatabaseBuilder(object):
   def __init__(self, database):
     """DatabaseBuilder is used for importing and merging interfaces into
     the Database"""
     self._database = database
     self._imported_interfaces = []
     self._impl_stmts = []
+    self.conditionals_met = set()
 
   def _resolve_type_defs(self, idl_file):
     type_def_map = {}
     # build map
     for type_def in idl_file.typeDefs:
       if type_def.type.id != type_def.id: # sanity check
         type_def_map[type_def.id] = type_def.type.id
     # use the map
     for type_node in idl_file.all(IDLType):
       while type_node.id in type_def_map:
@@ skipping 370 matching lines @@
   def _is_node_enabled(self, node, idl_defines):
     if not 'Conditional' in node.ext_attrs:
       return True
 
     def enabled(condition):
       return 'ENABLE_%s' % condition in idl_defines
 
     conditional = node.ext_attrs['Conditional']
     if conditional.find('&') != -1:
       for condition in conditional.split('&'):
+        self.conditionals_met.add(condition)
         if not enabled(condition):
           return False
       return True
 
     for condition in conditional.split('|'):
+      self.conditionals_met.add(condition)
       if enabled(condition):
         return True
     return False
 
   def fix_displacements(self, source):
     """E.g. In W3C, something is declared on HTMLDocument but in WebKit
     its on Document, so we need to mark that something in HTMLDocument
     with @WebKit(via=Document). The 'via' attribute specifies the
     parent interface that has the declaration."""
 
@@ skipping 71 matching lines @@
       # TODO(antonm): Ideally we'd like to have pristine copy of WebKit IDLs and fetch
       # this information directly from it.  Unfortunately right now database is massaged
       # a lot so it's difficult to maintain necessary information on DOMWindow itself.
       interface = self._database.GetInterface(type)
       if 'V8EnabledPerContext' in attr.ext_attrs:
         interface.ext_attrs['synthesizedV8EnabledPerContext'] = \
             attr.ext_attrs['V8EnabledPerContext']
       if 'V8EnabledAtRuntime' in attr.ext_attrs:
         interface.ext_attrs['synthesizedV8EnabledAtRuntime'] = \
             attr.ext_attrs['V8EnabledAtRuntime'] or attr.id