Dandandan commented on a change in pull request #10046:
URL: https://github.com/apache/arrow/pull/10046#discussion_r614133898
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File path: rust/arrow/src/array/array_primitive.rs
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@@ -88,12 +88,23 @@ impl<T: ArrowPrimitiveType> PrimitiveArray<T> {
PrimitiveBuilder::<T>::new(capacity)
}
+ /// Returns the primitive value at index `i`.
+ ///
+ /// # Safety
+ ///
+ /// caller must ensure that the passed in offset is less than the array
len()
+ pub unsafe fn value_unchecked(&self, i: usize) -> T::Native {
+ let offset = i + self.offset();
+ *self.raw_values.as_ptr().add(offset)
+ }
+
/// Returns the primitive value at index `i`.
///
/// Note this doesn't do any bound checking, for performance reason.
/// # Safety
/// caller must ensure that the passed in offset is less than the array
len()
pub fn value(&self, i: usize) -> T::Native {
+ debug_assert!(i < self.len());
let offset = i + self.offset();
Review comment:
This might use `value_unchecked` now?
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