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