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