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