Method KernelInit

cpp/src/arrow/compute/function.cc:198–213

  virtual ~FunctionExecutorImpl() {}

  Status KernelInit(const FunctionOptions* options) {
    RETURN_NOT_OK(CheckOptions(func, options));
    if (options == NULLPTR) {
      options = func.default_options();
    }
    if (kernel->init) {
      ARROW_ASSIGN_OR_RAISE(state,
                            kernel->init(&kernel_ctx, {kernel, in_types, options}));
      kernel_ctx.SetState(state.get());
    }

    RETURN_NOT_OK(executor->Init(&kernel_ctx, {kernel, in_types, options}));
    this->options = options;
    inited = true;
    return Status::OK();
  }

  Status Init(const FunctionOptions* options, ExecContext* exec_ctx) override {
    if (exec_ctx == NULLPTR) {