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