tyrelr commented on a change in pull request #9440:
URL: https://github.com/apache/arrow/pull/9440#discussion_r571706825
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File path: rust/arrow/src/array/array_binary.rs
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@@ -162,6 +163,16 @@ impl<OffsetSize: BinaryOffsetSizeTrait>
GenericBinaryArray<OffsetSize> {
}
}
+impl<'a, OffsetSize: BinaryOffsetSizeTrait> TypedArray
+ for &'a GenericBinaryArray<OffsetSize>
Review comment:
I had initially hoped to make TypedArray an extension of the Array
trait. But, to use a lifetime in the 'type' declarations, I found that I
needed to either make TypedArray include a generic lifetime (TypedArray<'a>),
or I needed to implement it for &'a TypedArray.
My previous attempts at this tried to use `trait TypedArray<'a> : Array`,
but once I tried using it on the comparison kernels ' I hit on lifetime issues
trying to prove the equivalence of NativeTypes... so I'm keeping it simple for
the experiment.
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