Enum aws_sdk_chime::types::CallingNameStatus
source · #[non_exhaustive]pub enum CallingNameStatus {
Unassigned,
UpdateFailed,
UpdateInProgress,
UpdateSucceeded,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against CallingNameStatus
, 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 callingnamestatus = unimplemented!();
match callingnamestatus {
CallingNameStatus::Unassigned => { /* ... */ },
CallingNameStatus::UpdateFailed => { /* ... */ },
CallingNameStatus::UpdateInProgress => { /* ... */ },
CallingNameStatus::UpdateSucceeded => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when callingnamestatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant CallingNameStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
CallingNameStatus::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 CallingNameStatus::NewFeature
is defined.
Specifically, when callingnamestatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on CallingNameStatus::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
Unassigned
UpdateFailed
UpdateInProgress
UpdateSucceeded
Unknown(UnknownVariantValue)
Unknown
. See the docs on this enum for the correct way to handle unknown variants.Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl CallingNameStatus
impl CallingNameStatus
sourcepub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
pub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
Parses the enum value while disallowing unknown variants.
Unknown variants will result in an error.
Trait Implementations§
source§impl AsRef<str> for CallingNameStatus
impl AsRef<str> for CallingNameStatus
source§impl Clone for CallingNameStatus
impl Clone for CallingNameStatus
source§fn clone(&self) -> CallingNameStatus
fn clone(&self) -> CallingNameStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for CallingNameStatus
impl Debug for CallingNameStatus
source§impl Display for CallingNameStatus
impl Display for CallingNameStatus
source§impl From<&str> for CallingNameStatus
impl From<&str> for CallingNameStatus
source§impl FromStr for CallingNameStatus
impl FromStr for CallingNameStatus
source§impl Hash for CallingNameStatus
impl Hash for CallingNameStatus
source§impl Ord for CallingNameStatus
impl Ord for CallingNameStatus
source§fn cmp(&self, other: &CallingNameStatus) -> Ordering
fn cmp(&self, other: &CallingNameStatus) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq for CallingNameStatus
impl PartialEq for CallingNameStatus
source§fn eq(&self, other: &CallingNameStatus) -> bool
fn eq(&self, other: &CallingNameStatus) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for CallingNameStatus
impl PartialOrd for CallingNameStatus
source§fn partial_cmp(&self, other: &CallingNameStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &CallingNameStatus) -> 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 CallingNameStatus
impl StructuralPartialEq for CallingNameStatus
Auto Trait Implementations§
impl Freeze for CallingNameStatus
impl RefUnwindSafe for CallingNameStatus
impl Send for CallingNameStatus
impl Sync for CallingNameStatus
impl Unpin for CallingNameStatus
impl UnwindSafe for CallingNameStatus
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> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.