pitrou commented on code in PR #36256:
URL: https://github.com/apache/arrow/pull/36256#discussion_r1241836101
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cpp/src/arrow/compute/kernels/scalar_if_else_benchmark.cc:
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@@ -57,9 +57,45 @@ struct GetBytesProcessed<Type, enable_if_base_binary<Type>> {
}
};
+template <typename DataType>
+struct GetBytesProcessed<DataType, enable_if_list_like<DataType>> {
+ static int64_t Get(const std::shared_ptr<Array>& arr) {
+ using OffsetType = typename TypeTraits<DataType>::OffsetType::c_type;
+
+ int64_t total_bytes = 0;
+ if constexpr (DataType::type_id == Type::LIST ||
+ DataType::type_id == Type::LARGE_LIST) {
+ total_bytes += (arr->length() + 1) * sizeof(OffsetType);
+ } else {
+ ADD_FAILURE() << "GetBytesProcessed dispatching not implemented for "
+ << arr->type()->ToString();
+ }
+
+ auto child_array = std::static_pointer_cast<ListArray>(arr)->values();
+ switch (child_array->type_id()) {
Review Comment:
May want to use `VisitTypeInline` to avoid rewriting the switch by hand.
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