#[non_exhaustive]
pub enum AnalysisErrorType {
AccessDenied,
ColumnGeographicRoleMismatch,
ColumnReplacementMissing,
ColumnTypeMismatch,
DataSetNotFound,
InternalFailure,
ParameterNotFound,
ParameterTypeInvalid,
ParameterValueIncompatible,
SourceNotFound,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against AnalysisErrorType
, it is important to ensure
your code is forward-compatible. That is, if a match arm handles a case for a
feature that is supported by the service but has not been represented as an enum
variant in a current version of SDK, your code should continue to work when you
upgrade SDK to a future version in which the enum does include a variant for that
feature.
Here is an example of how you can make a match expression forward-compatible:
# let analysiserrortype = unimplemented!();
match analysiserrortype {
AnalysisErrorType::AccessDenied => { /* ... */ },
AnalysisErrorType::ColumnGeographicRoleMismatch => { /* ... */ },
AnalysisErrorType::ColumnReplacementMissing => { /* ... */ },
AnalysisErrorType::ColumnTypeMismatch => { /* ... */ },
AnalysisErrorType::DataSetNotFound => { /* ... */ },
AnalysisErrorType::InternalFailure => { /* ... */ },
AnalysisErrorType::ParameterNotFound => { /* ... */ },
AnalysisErrorType::ParameterTypeInvalid => { /* ... */ },
AnalysisErrorType::ParameterValueIncompatible => { /* ... */ },
AnalysisErrorType::SourceNotFound => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when analysiserrortype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant AnalysisErrorType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
AnalysisErrorType::Unknown(UnknownVariantValue("NewFeature".to_owned()))
and calling as_str
on it yields "NewFeature"
.
This match expression is forward-compatible when executed with a newer
version of SDK where the variant AnalysisErrorType::NewFeature
is defined.
Specifically, when analysiserrortype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on AnalysisErrorType::NewFeature
also yielding "NewFeature"
.
Explicitly matching on the Unknown
variant should
be avoided for two reasons:
- The inner data
UnknownVariantValue
is opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
AccessDenied
ColumnGeographicRoleMismatch
ColumnReplacementMissing
ColumnTypeMismatch
DataSetNotFound
InternalFailure
ParameterNotFound
ParameterTypeInvalid
ParameterValueIncompatible
SourceNotFound
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for AnalysisErrorType
impl AsRef<str> for AnalysisErrorType
source§impl Clone for AnalysisErrorType
impl Clone for AnalysisErrorType
source§fn clone(&self) -> AnalysisErrorType
fn clone(&self) -> AnalysisErrorType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for AnalysisErrorType
impl Debug for AnalysisErrorType
source§impl From<&str> for AnalysisErrorType
impl From<&str> for AnalysisErrorType
source§impl FromStr for AnalysisErrorType
impl FromStr for AnalysisErrorType
source§impl Hash for AnalysisErrorType
impl Hash for AnalysisErrorType
source§impl Ord for AnalysisErrorType
impl Ord for AnalysisErrorType
source§fn cmp(&self, other: &AnalysisErrorType) -> Ordering
fn cmp(&self, other: &AnalysisErrorType) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<AnalysisErrorType> for AnalysisErrorType
impl PartialEq<AnalysisErrorType> for AnalysisErrorType
source§fn eq(&self, other: &AnalysisErrorType) -> bool
fn eq(&self, other: &AnalysisErrorType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<AnalysisErrorType> for AnalysisErrorType
impl PartialOrd<AnalysisErrorType> for AnalysisErrorType
source§fn partial_cmp(&self, other: &AnalysisErrorType) -> Option<Ordering>
fn partial_cmp(&self, other: &AnalysisErrorType) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Eq for AnalysisErrorType
impl StructuralEq for AnalysisErrorType
impl StructuralPartialEq for AnalysisErrorType
Auto Trait Implementations§
impl RefUnwindSafe for AnalysisErrorType
impl Send for AnalysisErrorType
impl Sync for AnalysisErrorType
impl Unpin for AnalysisErrorType
impl UnwindSafe for AnalysisErrorType
Blanket Implementations§
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.