public Builder setFile(
          int index, com.google.protobuf.DescriptorProtos.FileDescriptorProto.Builder builderForValue) {
        if (fileBuilder_ == null) {
          ensureFileIsMutable();
          file_.set(index, builderForValue.build());
          onChanged();
        } else {
          fileBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }