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