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