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