Method Visit

cpp/src/arrow/builder.cc:143–145

struct DictionaryBuilderCase {
  template <typename ValueType, typename Enable = typename ValueType::c_type>
  Status Visit(const ValueType&) {
    return CreateFor<ValueType>();
  }

  Status Visit(const NullType&) { return CreateFor<NullType>(); }
  Status Visit(const BinaryType&) { return CreateFor<BinaryType>(); }