tustvold commented on code in PR #2711:
URL: https://github.com/apache/arrow-rs/pull/2711#discussion_r968713644
##########
arrow-schema/src/schema.rs:
##########
@@ -205,13 +211,13 @@ impl Schema {
}
/// Find the index of the column with the given name.
- pub fn index_of(&self, name: &str) -> Result<usize> {
+ pub fn index_of(&self, name: &str) -> Result<usize, ArrowSchemaError> {
(0..self.fields.len())
.find(|idx| self.fields[*idx].name() == name)
.ok_or_else(|| {
let valid_fields: Vec<String> =
self.fields.iter().map(|f| f.name().clone()).collect();
- ArrowError::InvalidArgumentError(format!(
+ ArrowSchemaError::Field(format!(
Review Comment:
I have to confess I personally am not a massive fan of highly structured
error reporting, it has a tendency to be hard to maintain, and impractical to
actually use.
My personal preference is for high-level error categories, to allow for
custom programatic handling in the caller, but with opaque payloads.
This allows:
* Clients can easily handle classes of error instead of a large list of
variants
* Additional error context can be added without this being a breaking change
* The error handling logic is kept relatively concise
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