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