Enum aws_sdk_m2::types::BatchJobType
source · #[non_exhaustive]pub enum BatchJobType {
Jes2,
Jes3,
Vse,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against BatchJobType
, 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 batchjobtype = unimplemented!();
match batchjobtype {
BatchJobType::Jes2 => { /* ... */ },
BatchJobType::Jes3 => { /* ... */ },
BatchJobType::Vse => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when batchjobtype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant BatchJobType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
BatchJobType::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 BatchJobType::NewFeature
is defined.
Specifically, when batchjobtype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on BatchJobType::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
Jes2
Jes3
Vse
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 BatchJobType
impl BatchJobType
source§impl BatchJobType
impl BatchJobType
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 BatchJobType
impl AsRef<str> for BatchJobType
source§impl Clone for BatchJobType
impl Clone for BatchJobType
source§fn clone(&self) -> BatchJobType
fn clone(&self) -> BatchJobType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for BatchJobType
impl Debug for BatchJobType
source§impl Display for BatchJobType
impl Display for BatchJobType
source§impl From<&str> for BatchJobType
impl From<&str> for BatchJobType
source§impl FromStr for BatchJobType
impl FromStr for BatchJobType
source§impl Hash for BatchJobType
impl Hash for BatchJobType
source§impl Ord for BatchJobType
impl Ord for BatchJobType
source§fn cmp(&self, other: &BatchJobType) -> Ordering
fn cmp(&self, other: &BatchJobType) -> 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 BatchJobType
impl PartialEq for BatchJobType
source§fn eq(&self, other: &BatchJobType) -> bool
fn eq(&self, other: &BatchJobType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for BatchJobType
impl PartialOrd for BatchJobType
source§fn partial_cmp(&self, other: &BatchJobType) -> Option<Ordering>
fn partial_cmp(&self, other: &BatchJobType) -> 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 BatchJobType
impl StructuralPartialEq for BatchJobType
Auto Trait Implementations§
impl Freeze for BatchJobType
impl RefUnwindSafe for BatchJobType
impl Send for BatchJobType
impl Sync for BatchJobType
impl Unpin for BatchJobType
impl UnwindSafe for BatchJobType
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