Method AddStatefulFunction

cpp/src/arrow/compute/exec_test.cc:1077–1088

  }

  void AddStatefulFunction() {
    auto registry = GetFunctionRegistry();

    // This function's behavior depends on a static parameter that is made
    // available to the kernel's execution function through its Options object
    auto func = std::make_shared<ScalarFunction>("test_stateful", Arity::Unary(),
                                                 /*doc=*/FunctionDoc::Empty());

    ScalarKernel kernel({int32()}, int32(), ExecStateful, InitStateful);
    ASSERT_OK(func->AddKernel(kernel));
    ASSERT_OK(registry->AddFunction(func));
  }

  void AddScalarFunction() {
    auto registry = GetFunctionRegistry();