Function checkOrSetEmptyResult

bolt/expression/Expr.cpp:129–136

Expr::Expr(
    TypePtr type,
    std::vector<std::shared_ptr<Expr>>&& inputs,
    std::shared_ptr<VectorFunction> vectorFunction,
    std::string name,
    bool trackCpuUsage)
    : type_(std::move(type)),
      inputs_(std::move(inputs)),
      name_(std::move(name)),
      vectorFunction_(std::move(vectorFunction)),
      specialForm_{false},
      supportsFlatNoNullsFastPath_{
          vectorFunction_->supportsFlatNoNullsFastPath() &&