Map enums to strings.

tools/dom/scripts/database.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.
 
 """Module to manage IDL files."""
 
 import copy
 import pickle
 import logging
@@ skipping 24 matching lines @@
     Args:
       root_dir -- a directory. If directory does not exist, it will
       be created.
     """
     self._root_dir = root_dir
     if not os.path.exists(root_dir):
       _logger.debug('creating root directory %s' % root_dir)
       os.makedirs(root_dir)
     self._all_interfaces = {}
     self._interfaces_to_delete = []
+    self._enums = {}
     self._idlparser = idlparser.IDLParser(idlparser.FREMONTCUT_SYNTAX)
 
   def Clone(self):
     new_database = Database(self._root_dir)
     new_database._all_interfaces = copy.deepcopy(self._all_interfaces)
     new_database._interfaces_to_delete = copy.deepcopy(
         self._interfaces_to_delete)
+    new_database._enums = copy.deepcopy(self._enums)
     return new_database
 
   def Delete(self):
     """Deletes the database by deleting its directory"""
     if os.path.exists(self._root_dir):
       shutil.rmtree(self._root_dir)
     # reset in-memory constructs
     self._all_interfaces = {}
 
   def _ScanForInterfaces(self):
@@ skipping 165 matching lines @@
       os.remove(file_path)
 
   def Hierarchy(self, interface):
     yield interface
     for parent in interface.parents:
       parent_name = parent.type.id
       if not self.HasInterface(parent.type.id):
         continue
       for parent_interface in self.Hierarchy(self.GetInterface(parent.type.id)):
         yield parent_interface
+
+  def HasEnum(self, enum_name):
+    return enum_name in self._enums
+
+  def GetEnum(self, enum_name):
+    return self._enums[enum_name]
+
+  def AddEnum(self, enum):
+    self._enums[enum.id] = enum