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