#[non_exhaustive]
pub enum InsightFeedbackOption {
AlertTooSensitive,
DataIncorrect,
DataNoisyAnomaly,
RecommendationUseful,
ValidCollection,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against InsightFeedbackOption
, 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 insightfeedbackoption = unimplemented!();
match insightfeedbackoption {
InsightFeedbackOption::AlertTooSensitive => { /* ... */ },
InsightFeedbackOption::DataIncorrect => { /* ... */ },
InsightFeedbackOption::DataNoisyAnomaly => { /* ... */ },
InsightFeedbackOption::RecommendationUseful => { /* ... */ },
InsightFeedbackOption::ValidCollection => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when insightfeedbackoption
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant InsightFeedbackOption::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
InsightFeedbackOption::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 InsightFeedbackOption::NewFeature
is defined.
Specifically, when insightfeedbackoption
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on InsightFeedbackOption::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
AlertTooSensitive
DataIncorrect
DataNoisyAnomaly
RecommendationUseful
ValidCollection
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for InsightFeedbackOption
impl AsRef<str> for InsightFeedbackOption
source§impl Clone for InsightFeedbackOption
impl Clone for InsightFeedbackOption
source§fn clone(&self) -> InsightFeedbackOption
fn clone(&self) -> InsightFeedbackOption
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for InsightFeedbackOption
impl Debug for InsightFeedbackOption
source§impl From<&str> for InsightFeedbackOption
impl From<&str> for InsightFeedbackOption
source§impl FromStr for InsightFeedbackOption
impl FromStr for InsightFeedbackOption
source§impl Hash for InsightFeedbackOption
impl Hash for InsightFeedbackOption
source§impl Ord for InsightFeedbackOption
impl Ord for InsightFeedbackOption
source§fn cmp(&self, other: &InsightFeedbackOption) -> Ordering
fn cmp(&self, other: &InsightFeedbackOption) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<InsightFeedbackOption> for InsightFeedbackOption
impl PartialEq<InsightFeedbackOption> for InsightFeedbackOption
source§fn eq(&self, other: &InsightFeedbackOption) -> bool
fn eq(&self, other: &InsightFeedbackOption) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<InsightFeedbackOption> for InsightFeedbackOption
impl PartialOrd<InsightFeedbackOption> for InsightFeedbackOption
source§fn partial_cmp(&self, other: &InsightFeedbackOption) -> Option<Ordering>
fn partial_cmp(&self, other: &InsightFeedbackOption) -> 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 InsightFeedbackOption
impl StructuralEq for InsightFeedbackOption
impl StructuralPartialEq for InsightFeedbackOption
Auto Trait Implementations§
impl RefUnwindSafe for InsightFeedbackOption
impl Send for InsightFeedbackOption
impl Sync for InsightFeedbackOption
impl Unpin for InsightFeedbackOption
impl UnwindSafe for InsightFeedbackOption
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.