Method Evaluate

eval/eval/create_list_step_test.cc:410–415

      : DirectExpressionStep(-1), attr_(std::move(attr)) {}

  absl::Status Evaluate(ExecutionFrameBase& frame, Value& result,
                        AttributeTrail& attr) const override {
    result = cel::NullValue();
    attr = AttributeTrail(attr_);
    return absl::OkStatus();
  }

 private:
  cel::Attribute attr_;