Enum aws_sdk_rds::types::DbProxyEndpointStatus
source · #[non_exhaustive]pub enum DbProxyEndpointStatus {
Available,
Creating,
Deleting,
IncompatibleNetwork,
InsufficientResourceLimits,
Modifying,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against DbProxyEndpointStatus, 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 dbproxyendpointstatus = unimplemented!();
match dbproxyendpointstatus {
DbProxyEndpointStatus::Available => { /* ... */ },
DbProxyEndpointStatus::Creating => { /* ... */ },
DbProxyEndpointStatus::Deleting => { /* ... */ },
DbProxyEndpointStatus::IncompatibleNetwork => { /* ... */ },
DbProxyEndpointStatus::InsufficientResourceLimits => { /* ... */ },
DbProxyEndpointStatus::Modifying => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when dbproxyendpointstatus represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant DbProxyEndpointStatus::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
DbProxyEndpointStatus::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 DbProxyEndpointStatus::NewFeature is defined.
Specifically, when dbproxyendpointstatus represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on DbProxyEndpointStatus::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
Available
Creating
Deleting
IncompatibleNetwork
InsufficientResourceLimits
Modifying
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 DbProxyEndpointStatus
impl DbProxyEndpointStatus
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 DbProxyEndpointStatus
impl AsRef<str> for DbProxyEndpointStatus
source§impl Clone for DbProxyEndpointStatus
impl Clone for DbProxyEndpointStatus
source§fn clone(&self) -> DbProxyEndpointStatus
fn clone(&self) -> DbProxyEndpointStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for DbProxyEndpointStatus
impl Debug for DbProxyEndpointStatus
source§impl Display for DbProxyEndpointStatus
impl Display for DbProxyEndpointStatus
source§impl From<&str> for DbProxyEndpointStatus
impl From<&str> for DbProxyEndpointStatus
source§impl FromStr for DbProxyEndpointStatus
impl FromStr for DbProxyEndpointStatus
source§impl Hash for DbProxyEndpointStatus
impl Hash for DbProxyEndpointStatus
source§impl Ord for DbProxyEndpointStatus
impl Ord for DbProxyEndpointStatus
source§fn cmp(&self, other: &DbProxyEndpointStatus) -> Ordering
fn cmp(&self, other: &DbProxyEndpointStatus) -> 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 DbProxyEndpointStatus
impl PartialEq for DbProxyEndpointStatus
source§impl PartialOrd for DbProxyEndpointStatus
impl PartialOrd for DbProxyEndpointStatus
impl Eq for DbProxyEndpointStatus
impl StructuralPartialEq for DbProxyEndpointStatus
Auto Trait Implementations§
impl Freeze for DbProxyEndpointStatus
impl RefUnwindSafe for DbProxyEndpointStatus
impl Send for DbProxyEndpointStatus
impl Sync for DbProxyEndpointStatus
impl Unpin for DbProxyEndpointStatus
impl UnwindSafe for DbProxyEndpointStatus
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<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit)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