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