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