Mojom compiler backend: Stop re-computing interface version numbers and consume method declaration o

mojo/public/tools/bindings/pylib/mojom/generate/generator.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.
 
 """Code shared by the various language-specific code generators."""
 
 from functools import partial
 from itertools import chain
 import os.path
 import re
@@ skipping 151 matching lines @@
     used repeatedly in the generation process."""
     if not hasattr(struct, 'packed') or struct.packed is None:
       struct.packed = pack.PackedStruct(struct)
       struct.bytes = pack.GetByteLayout(struct.packed)
     struct.exported = exported
     return struct
 
   def _AddInterfaceComputedData(self, interface):
     """Adds computed data to the given interface. The data is computed once and
     used repeatedly in the generation process."""
-    # Here we set the interface's |version| attribute to be the maximum value
-    # of the |min_version| attributes of all methods in the interface and all
-    # parameters in those methods.
-    # TODO(rudominer) Consider adding this value to the intermediate
-    # representation.
-    interface.version = 0
     for method in interface.methods:
-      if method.min_version is not None:
-        interface.version = max(interface.version, method.min_version)
-
       method.param_struct = self._GetStructFromMethod(method)
-      interface.version = max(interface.version,
-                              method.param_struct.versions[-1].version)
-
       if method.response_parameters is not None:
         method.response_param_struct = self._GetResponseStructFromMethod(method)
-        interface.version = max(
-            interface.version,
-            method.response_param_struct.versions[-1].version)
       else:
         method.response_param_struct = None
     return interface
 
   def _GetStructFromMethod(self, method):
     """Returns a method's parameters as a struct."""
     return self._AddStructComputedData(False, method.param_struct)
 
   def _GetResponseStructFromMethod(self, method):
     """Returns a method's response_parameters as a struct."""
     return self._AddStructComputedData(False, method.response_param_struct)