mbrobbel commented on code in PR #8543:
URL: https://github.com/apache/arrow-rs/pull/8543#discussion_r2401481284
##########
arrow-array/src/array/boolean_array.rs:
##########
@@ -436,11 +436,78 @@ impl<'a> BooleanArray {
}
}
-impl<Ptr: std::borrow::Borrow<Option<bool>>> FromIterator<Ptr> for
BooleanArray {
+/// An optional boolean value
+///
+/// This struct is used as an adapter when creating `BooleanArray` from an
iterator.
+/// `FromIterator` for `BooleanArray` takes an iterator where the elements can
be `into`
+/// this struct. So once implementing `From` or `Into` trait for a type, an
iterator of
+/// the type can be collected to `BooleanArray`.
+///
+/// See also [NativeAdapter](crate::array::NativeAdapter).
+#[derive(Debug)]
+pub struct BooleanAdapter {
Review Comment:
I would avoid exposing it until someone needs it, but that's just my
preference, not a strong opinion.
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