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