bkietz commented on issue #45817:
URL: https://github.com/apache/arrow/issues/45817#issuecomment-2749278098
The trait is definitely annoying, and I'll think about how best to rewrite
it. For now, the code example can be rewritten like:
```c++
std::vector<Chunk> GetChunks(const int16_t* def_levels, const int16_t*
rep_levels,
int64_t num_levels, const ::arrow::Array&
values) {
auto handle_type = [&](auto&& type) -> std::vector<Chunk> {
using ArrowType = std::decay_t<decltype(type)>;
if constexpr (::arrow::is_base_binary_type<ArrowType>::value ||
::arrow::is_fixed_size_binary_type<ArrowType>::value) {
if constexpr (!::arrow::is_string_like_type<ArrowType>::value) {
return CalculateBinaryLike<::arrow::BinaryArray>(def_levels,
rep_levels,
num_levels,
values);
}
}
throw ParquetException("Unsupported Arrow array type " +
values.type()->ToString());
};
return ::arrow::VisitType(*values.type(), handle_type);
}
```
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