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