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