taepper commented on PR #50714:
URL: https://github.com/apache/arrow/pull/50714#issuecomment-5119845885
@pitrou For this case:
```
template <typename Type, typename ConsumeValue, typename ConsumeNull>
requires std::is_void_v<
std::invoke_result_t<ConsumeValue, uint32_t, typename
GetViewType<Type>::T>>
void VisitGroupedValues(const ExecSpan& batch, ConsumeValue&& valid_func,
ConsumeNull&& null_func) {
```
I used `typename GetViewType<Type>::T` to e.g. map from `Int32Type` to
`int32_t` / `Decimal128Type` to `Decimal128`. Is this the idiomatic way (we are
not using a `View` here)? I did not find another readily apparent version
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