Enum aws_sdk_backup::types::RestoreJobStatus
source · #[non_exhaustive]pub enum RestoreJobStatus {
Aborted,
Completed,
Failed,
Pending,
Running,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against RestoreJobStatus
, 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 restorejobstatus = unimplemented!();
match restorejobstatus {
RestoreJobStatus::Aborted => { /* ... */ },
RestoreJobStatus::Completed => { /* ... */ },
RestoreJobStatus::Failed => { /* ... */ },
RestoreJobStatus::Pending => { /* ... */ },
RestoreJobStatus::Running => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when restorejobstatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant RestoreJobStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
RestoreJobStatus::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 RestoreJobStatus::NewFeature
is defined.
Specifically, when restorejobstatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on RestoreJobStatus::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
Aborted
Completed
Failed
Pending
Running
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 RestoreJobStatus
impl RestoreJobStatus
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 RestoreJobStatus
impl AsRef<str> for RestoreJobStatus
source§impl Clone for RestoreJobStatus
impl Clone for RestoreJobStatus
source§fn clone(&self) -> RestoreJobStatus
fn clone(&self) -> RestoreJobStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for RestoreJobStatus
impl Debug for RestoreJobStatus
source§impl From<&str> for RestoreJobStatus
impl From<&str> for RestoreJobStatus
source§impl FromStr for RestoreJobStatus
impl FromStr for RestoreJobStatus
source§impl Hash for RestoreJobStatus
impl Hash for RestoreJobStatus
source§impl Ord for RestoreJobStatus
impl Ord for RestoreJobStatus
source§fn cmp(&self, other: &RestoreJobStatus) -> Ordering
fn cmp(&self, other: &RestoreJobStatus) -> 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 RestoreJobStatus
impl PartialEq for RestoreJobStatus
source§fn eq(&self, other: &RestoreJobStatus) -> bool
fn eq(&self, other: &RestoreJobStatus) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for RestoreJobStatus
impl PartialOrd for RestoreJobStatus
source§fn partial_cmp(&self, other: &RestoreJobStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &RestoreJobStatus) -> 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 RestoreJobStatus
impl StructuralEq for RestoreJobStatus
impl StructuralPartialEq for RestoreJobStatus
Auto Trait Implementations§
impl RefUnwindSafe for RestoreJobStatus
impl Send for RestoreJobStatus
impl Sync for RestoreJobStatus
impl Unpin for RestoreJobStatus
impl UnwindSafe for RestoreJobStatus
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
§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,
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§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,
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.