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