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Commit7db5bc6

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committed
fix an Error/Display impl
Types implementing the Error trait should print some inner Error **xor**return that inner Error from its Error::source impl. Otherwise, the sameerror will be printed multiple times when printing an Error's entiresource chain, which is unhelpful.
1 parentbbd1301 commit7db5bc6

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1 file changed

+17
-21
lines changed
  • tokio-postgres/src/error

1 file changed

+17
-21
lines changed

‎tokio-postgres/src/error/mod.rs‎

Lines changed: 17 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -379,31 +379,27 @@ impl fmt::Debug for Error {
379379
impl fmt::DisplayforError{
380380
fnfmt(&self,fmt:&mut fmt::Formatter<'_>) -> fmt::Result{
381381
match&self.0.kind{
382-
Kind::Io => fmt.write_str("error communicating with the server")?,
383-
Kind::UnexpectedMessage => fmt.write_str("unexpected message from server")?,
384-
Kind::Tls => fmt.write_str("error performing TLS handshake")?,
385-
Kind::ToSql(idx) =>write!(fmt,"error serializing parameter {idx}")?,
386-
Kind::FromSql(idx) =>write!(fmt,"error deserializing column {idx}")?,
387-
Kind::Column(column) =>write!(fmt,"invalid column `{column}`")?,
382+
Kind::Io => fmt.write_str("error communicating with the server"),
383+
Kind::UnexpectedMessage => fmt.write_str("unexpected message from server"),
384+
Kind::Tls => fmt.write_str("error performing TLS handshake"),
385+
Kind::ToSql(idx) =>write!(fmt,"error serializing parameter {idx}"),
386+
Kind::FromSql(idx) =>write!(fmt,"error deserializing column {idx}"),
387+
Kind::Column(column) =>write!(fmt,"invalid column `{column}`"),
388388
Kind::Parameters(real, expected) =>{
389-
write!(fmt,"expected {expected} parameters but got {real}")?
389+
write!(fmt,"expected {expected} parameters but got {real}")
390390
}
391-
Kind::Closed => fmt.write_str("connection closed")?,
392-
Kind::Db => fmt.write_str("db error")?,
393-
Kind::Parse => fmt.write_str("error parsing response from server")?,
394-
Kind::Encode => fmt.write_str("error encoding message to server")?,
395-
Kind::Authentication => fmt.write_str("authentication error")?,
396-
Kind::ConfigParse => fmt.write_str("invalid connection string")?,
397-
Kind::Config => fmt.write_str("invalid configuration")?,
398-
Kind::RowCount => fmt.write_str("query returned an unexpected number of rows")?,
391+
Kind::Closed => fmt.write_str("connection closed"),
392+
Kind::Db => fmt.write_str("db error"),
393+
Kind::Parse => fmt.write_str("error parsing response from server"),
394+
Kind::Encode => fmt.write_str("error encoding message to server"),
395+
Kind::Authentication => fmt.write_str("authentication error"),
396+
Kind::ConfigParse => fmt.write_str("invalid connection string"),
397+
Kind::Config => fmt.write_str("invalid configuration"),
398+
Kind::RowCount => fmt.write_str("query returned an unexpected number of rows"),
399399
#[cfg(feature ="runtime")]
400-
Kind::Connect => fmt.write_str("error connecting to server")?,
401-
Kind::Timeout => fmt.write_str("timeout waiting for server")?,
402-
};
403-
ifletSome(ref cause) =self.0.cause{
404-
write!(fmt,": {cause}")?;
400+
Kind::Connect => fmt.write_str("error connecting to server"),
401+
Kind::Timeout => fmt.write_str("timeout waiting for server"),
405402
}
406-
Ok(())
407403
}
408404
}
409405

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