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