boustrophedon commented on issue #5714:
URL: https://github.com/apache/arrow-rs/issues/5714#issuecomment-2094466783
Sure, it's possible to write something like
```
trait ToArc {
fn arc(self) -> Arc<Self> {
Arc::new(self)
}
}
impl ToArc for Int32Array {} [...]
```
and impl it for the array types.
I took a quick look and it seems like there's 17 structs if we were to
implement it directly.
```
map_array.rs:impl Array for MapArray {
boolean_array.rs:impl Array for BooleanArray {
run_array.rs:impl<T: RunEndIndexType> Array for RunArray<T> {
run_array.rs:impl<'a, R: RunEndIndexType, V: Sync> Array for
TypedRunArray<'a, R, V> {
null_array.rs:impl Array for NullArray {
mod.rs:impl Array for ArrayRef {
mod.rs:impl<'a, T: Array> Array for &'a T {
struct_array.rs:impl Array for StructArray {
list_array.rs:impl<OffsetSize: OffsetSizeTrait> Array for
GenericListArray<OffsetSize> {
byte_view_array.rs:impl<T: ByteViewType + ?Sized> Array for
GenericByteViewArray<T> {
dictionary_array.rs:impl<T: ArrowDictionaryKeyType> Array for
DictionaryArray<T> {
dictionary_array.rs:impl<'a, K: ArrowDictionaryKeyType, V: Sync> Array for
TypedDictionaryArray<'a, K, V> {
byte_array.rs:impl<T: ByteArrayType> Array for GenericByteArray<T> {
fixed_size_list_array.rs:impl Array for FixedSizeListArray {
primitive_array.rs:impl<T: ArrowPrimitiveType> Array for PrimitiveArray<T> {
union_array.rs:impl Array for UnionArray {
fixed_size_binary_array.rs:impl Array for FixedSizeBinaryArray {
```
Although probably implementing it for ArrayRef is bad.
---
Additionally, `into` with Schema only kind of works because rust can't infer
the type if you're cloning it (to increment the refcount) at the point of use,
e.g. passing it into a function.
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