Function StructFromValue

eval/public/structs/cel_proto_wrap_util.cc:949–985

}

google::protobuf::Message* StructFromValue(google::protobuf::Message* message,
                                 const CelValue& value, google::protobuf::Arena* arena) {
  if (!value.IsMap()) {
    return nullptr;
  }
  const CelMap& map = *value.MapOrDie();
  absl::StatusOr<const CelList*> keys_or = map.ListKeys(arena);
  if (!keys_or.ok()) {
    // If map doesn't support listing keys, it can't pack into a Struct value.
    // This will surface as a CEL error when the object creation expression
    // fails.
    return nullptr;
  }
  const CelList& keys = **keys_or;
  CEL_ASSIGN_OR_RETURN(
      auto reflection,
      cel::well_known_types::GetStructReflection(message->GetDescriptor()),
      _.With(IgnoreErrorAndReturnNullptr()));
  for (int i = 0; i < keys.size(); i++) {
    auto k = keys.Get(arena, i);
    // If the key is not a string type, abort the conversion.
    if (!k.IsString()) {
      return nullptr;
    }
    absl::string_view key = k.StringOrDie().value();

    auto v = map.Get(arena, k);
    if (!v.has_value()) {
      return nullptr;
    }
    auto* field = reflection.InsertField(message, key);
    if (ValueFromValue(field, *v, arena) == nullptr) {
      return nullptr;
    }
  }
  return message;
}

google::protobuf::Message* StructFromValue(const google::protobuf::Message* prototype,
                                 const CelValue& value, google::protobuf::Arena* arena) {