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