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