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