tustvold commented on code in PR #5439:
URL: https://github.com/apache/arrow-rs/pull/5439#discussion_r1507039900
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arrow-flight/src/error.rs:
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@@ -49,17 +49,24 @@ impl FlightError {
impl std::fmt::Display for FlightError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
- // TODO better format / error
- write!(f, "{self:?}")
+ match self {
+ FlightError::Arrow(inner) => inner.fmt(f),
+ FlightError::NotYetImplemented(desc) => write!(f, "Not yet
implemented: {}", desc),
+ FlightError::Tonic(inner) => inner.fmt(f),
+ FlightError::ProtocolError(desc) => write!(f, "Protocol error:
{}", desc),
+ FlightError::DecodeError(desc) => write!(f, "Decode error: {}",
desc),
+ FlightError::ExternalError(source) => write!(f, "External error:
{}", source),
+ }
}
}
impl Error for FlightError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
- if let Self::ExternalError(e) = self {
- Some(e.as_ref())
- } else {
- None
+ match self {
+ FlightError::Arrow(inner) => inner.source(),
Review Comment:
So the use-case for returning `tonic::Status` in source might be if
FlightError was itself wrapped inside another error, potentially an opaque one.
A user might then want to walk the source chain to find `tonic::Status` in
order to get the error code or something
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