#[non_exhaustive]pub enum UnlabeledEventsTreatment {
Auto,
Fraud,
Ignore,
Legit,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against UnlabeledEventsTreatment
, 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 unlabeledeventstreatment = unimplemented!();
match unlabeledeventstreatment {
UnlabeledEventsTreatment::Auto => { /* ... */ },
UnlabeledEventsTreatment::Fraud => { /* ... */ },
UnlabeledEventsTreatment::Ignore => { /* ... */ },
UnlabeledEventsTreatment::Legit => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when unlabeledeventstreatment
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant UnlabeledEventsTreatment::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
UnlabeledEventsTreatment::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 UnlabeledEventsTreatment::NewFeature
is defined.
Specifically, when unlabeledeventstreatment
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on UnlabeledEventsTreatment::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
Auto
Fraud
Ignore
Legit
Unknown(UnknownVariantValue)
Unknown
. See the docs on this enum for the correct way to handle unknown variants.Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl UnlabeledEventsTreatment
impl UnlabeledEventsTreatment
sourcepub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
pub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
Parses the enum value while disallowing unknown variants.
Unknown variants will result in an error.
Trait Implementations§
source§impl AsRef<str> for UnlabeledEventsTreatment
impl AsRef<str> for UnlabeledEventsTreatment
source§impl Clone for UnlabeledEventsTreatment
impl Clone for UnlabeledEventsTreatment
source§fn clone(&self) -> UnlabeledEventsTreatment
fn clone(&self) -> UnlabeledEventsTreatment
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for UnlabeledEventsTreatment
impl Debug for UnlabeledEventsTreatment
source§impl Display for UnlabeledEventsTreatment
impl Display for UnlabeledEventsTreatment
source§impl From<&str> for UnlabeledEventsTreatment
impl From<&str> for UnlabeledEventsTreatment
source§impl FromStr for UnlabeledEventsTreatment
impl FromStr for UnlabeledEventsTreatment
source§impl Hash for UnlabeledEventsTreatment
impl Hash for UnlabeledEventsTreatment
source§impl Ord for UnlabeledEventsTreatment
impl Ord for UnlabeledEventsTreatment
source§fn cmp(&self, other: &UnlabeledEventsTreatment) -> Ordering
fn cmp(&self, other: &UnlabeledEventsTreatment) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq for UnlabeledEventsTreatment
impl PartialEq for UnlabeledEventsTreatment
source§fn eq(&self, other: &UnlabeledEventsTreatment) -> bool
fn eq(&self, other: &UnlabeledEventsTreatment) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for UnlabeledEventsTreatment
impl PartialOrd for UnlabeledEventsTreatment
source§fn partial_cmp(&self, other: &UnlabeledEventsTreatment) -> Option<Ordering>
fn partial_cmp(&self, other: &UnlabeledEventsTreatment) -> 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 UnlabeledEventsTreatment
impl StructuralPartialEq for UnlabeledEventsTreatment
Auto Trait Implementations§
impl Freeze for UnlabeledEventsTreatment
impl RefUnwindSafe for UnlabeledEventsTreatment
impl Send for UnlabeledEventsTreatment
impl Sync for UnlabeledEventsTreatment
impl Unpin for UnlabeledEventsTreatment
impl UnwindSafe for UnlabeledEventsTreatment
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.