tustvold commented on code in PR #3260:
URL: https://github.com/apache/arrow-rs/pull/3260#discussion_r1038380161
##########
arrow-array/src/array/primitive_array.rs:
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@@ -475,12 +492,29 @@ impl<T: ArrowPrimitiveType> PrimitiveArray<T> {
O: ArrowPrimitiveType,
F: Fn(T::Native) -> Result<O::Native, E>,
{
- let data = self.data();
- let len = self.len();
- let null_count = self.null_count();
+ PrimitiveArray::try_from_unary(self, op)
+ }
+
+ /// Creates a [`PrimitiveArray`] from the result of evaluating an fallible
+ /// function `op` for every valid element in `array`.
+ ///
+ /// ```
+ /// use arrow_array::{Int32Array, StringArray};
+ /// let array = StringArray::from(vec![Some("12"), Some("45"), None]);
+ /// let r = Int32Array::try_from_unary(&array, |v| v.parse()).unwrap();
Review Comment:
I think this is pretty cool
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