mbrobbel opened a new pull request, #5518:
URL: https://github.com/apache/arrow-rs/pull/5518
# Rationale for this change
This makes it easier to convert `ScalarBuffer`s to `Vec`s.
# What changes are included in this PR?
```rust
impl<T: ArrowNativeType> From<ScalarBuffer<T>> for Vec<T>
```
# Are there any user-facing changes?
Users can now convert a `ScalarBuffer<T>` directly to a `Vec<T>`, getting
zero-copy if possible, instead of having to do extra work when a copy can be
prevented:
```rust
// `Buffer::into_vec` + `Vec`s `From<&[T]>`:
let vec = scalar_buffer.into_inner().into_vec().unwrap_or_else(||
buffer.typed_data::<u8>().into());
// Because `Deref<Target=[T]>::to_vec` always makes a copy:
let vec = scalar_buffer.to_vec();
```
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