#[non_exhaustive]pub enum DeleteUniqueIdStatus {
Accepted,
Completed,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against DeleteUniqueIdStatus, 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 deleteuniqueidstatus = unimplemented!();
match deleteuniqueidstatus {
DeleteUniqueIdStatus::Accepted => { /* ... */ },
DeleteUniqueIdStatus::Completed => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when deleteuniqueidstatus represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant DeleteUniqueIdStatus::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
DeleteUniqueIdStatus::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 DeleteUniqueIdStatus::NewFeature is defined.
Specifically, when deleteuniqueidstatus represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on DeleteUniqueIdStatus::NewFeature also yielding "NewFeature".
Explicitly matching on the Unknown variant should
be avoided for two reasons:
- The inner data
UnknownVariantValueis 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
Accepted
Completed
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 DeleteUniqueIdStatus
impl DeleteUniqueIdStatus
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 DeleteUniqueIdStatus
impl AsRef<str> for DeleteUniqueIdStatus
source§impl Clone for DeleteUniqueIdStatus
impl Clone for DeleteUniqueIdStatus
source§fn clone(&self) -> DeleteUniqueIdStatus
fn clone(&self) -> DeleteUniqueIdStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for DeleteUniqueIdStatus
impl Debug for DeleteUniqueIdStatus
source§impl Display for DeleteUniqueIdStatus
impl Display for DeleteUniqueIdStatus
source§impl From<&str> for DeleteUniqueIdStatus
impl From<&str> for DeleteUniqueIdStatus
source§impl FromStr for DeleteUniqueIdStatus
impl FromStr for DeleteUniqueIdStatus
source§impl Hash for DeleteUniqueIdStatus
impl Hash for DeleteUniqueIdStatus
source§impl Ord for DeleteUniqueIdStatus
impl Ord for DeleteUniqueIdStatus
source§fn cmp(&self, other: &DeleteUniqueIdStatus) -> Ordering
fn cmp(&self, other: &DeleteUniqueIdStatus) -> 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 DeleteUniqueIdStatus
impl PartialEq for DeleteUniqueIdStatus
source§fn eq(&self, other: &DeleteUniqueIdStatus) -> bool
fn eq(&self, other: &DeleteUniqueIdStatus) -> bool
self and other values to be equal, and is used
by ==.source§impl PartialOrd for DeleteUniqueIdStatus
impl PartialOrd for DeleteUniqueIdStatus
source§fn partial_cmp(&self, other: &DeleteUniqueIdStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &DeleteUniqueIdStatus) -> 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 DeleteUniqueIdStatus
impl StructuralPartialEq for DeleteUniqueIdStatus
Auto Trait Implementations§
impl Freeze for DeleteUniqueIdStatus
impl RefUnwindSafe for DeleteUniqueIdStatus
impl Send for DeleteUniqueIdStatus
impl Sync for DeleteUniqueIdStatus
impl Unpin for DeleteUniqueIdStatus
impl UnwindSafe for DeleteUniqueIdStatus
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.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more