Enum aws_sdk_batch::types::OrchestrationType
source · #[non_exhaustive]pub enum OrchestrationType {
Ecs,
Eks,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against OrchestrationType
, 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 orchestrationtype = unimplemented!();
match orchestrationtype {
OrchestrationType::Ecs => { /* ... */ },
OrchestrationType::Eks => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when orchestrationtype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant OrchestrationType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
OrchestrationType::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 OrchestrationType::NewFeature
is defined.
Specifically, when orchestrationtype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on OrchestrationType::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
Ecs
Eks
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for OrchestrationType
impl AsRef<str> for OrchestrationType
source§impl Clone for OrchestrationType
impl Clone for OrchestrationType
source§fn clone(&self) -> OrchestrationType
fn clone(&self) -> OrchestrationType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for OrchestrationType
impl Debug for OrchestrationType
source§impl From<&str> for OrchestrationType
impl From<&str> for OrchestrationType
source§impl FromStr for OrchestrationType
impl FromStr for OrchestrationType
source§impl Hash for OrchestrationType
impl Hash for OrchestrationType
source§impl Ord for OrchestrationType
impl Ord for OrchestrationType
source§fn cmp(&self, other: &OrchestrationType) -> Ordering
fn cmp(&self, other: &OrchestrationType) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere Self: Sized,
source§impl PartialEq<OrchestrationType> for OrchestrationType
impl PartialEq<OrchestrationType> for OrchestrationType
source§fn eq(&self, other: &OrchestrationType) -> bool
fn eq(&self, other: &OrchestrationType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<OrchestrationType> for OrchestrationType
impl PartialOrd<OrchestrationType> for OrchestrationType
source§fn partial_cmp(&self, other: &OrchestrationType) -> Option<Ordering>
fn partial_cmp(&self, other: &OrchestrationType) -> 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 OrchestrationType
impl StructuralEq for OrchestrationType
impl StructuralPartialEq for OrchestrationType
Auto Trait Implementations§
impl RefUnwindSafe for OrchestrationType
impl Send for OrchestrationType
impl Sync for OrchestrationType
impl Unpin for OrchestrationType
impl UnwindSafe for OrchestrationType
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> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.