Tyrel Rink created ARROW-11546:
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Summary: [Rust][Experiment][WIP] Experiment with a TypedArray trait
Key: ARROW-11546
URL: https://issues.apache.org/jira/browse/ARROW-11546
Project: Apache Arrow
Issue Type: Improvement
Components: Rust
Reporter: Tyrel Rink
Assignee: Tyrel Rink
A few of the arrow kernels rely on macros to iterate over values using a common
".value()" function, but:
* this is unsafe on some array types (string, binary), but unsafe on other
array types (primitive)
* this forces iteration by index, which does not always optimize away
bounds-checking (at least in the binary case)
This PR is an experiment with a TypedArray trait, which provides access to
array values (along with associated types describing those values). This will
NOT remove the need for downcasting, as the associated types aren't
object-safe. But it should be sufficient to allow simple processing of values
from multiple array types using a generic function instead of a macro.
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