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