Enum aws_sdk_eks::types::ResolveConflicts
source · #[non_exhaustive]pub enum ResolveConflicts {
None,
Overwrite,
Preserve,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against ResolveConflicts, 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 resolveconflicts = unimplemented!();
match resolveconflicts {
ResolveConflicts::None => { /* ... */ },
ResolveConflicts::Overwrite => { /* ... */ },
ResolveConflicts::Preserve => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when resolveconflicts represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant ResolveConflicts::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
ResolveConflicts::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 ResolveConflicts::NewFeature is defined.
Specifically, when resolveconflicts represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on ResolveConflicts::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
None
Overwrite
Preserve
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 ResolveConflicts
impl ResolveConflicts
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 ResolveConflicts
impl AsRef<str> for ResolveConflicts
source§impl Clone for ResolveConflicts
impl Clone for ResolveConflicts
source§fn clone(&self) -> ResolveConflicts
fn clone(&self) -> ResolveConflicts
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for ResolveConflicts
impl Debug for ResolveConflicts
source§impl From<&str> for ResolveConflicts
impl From<&str> for ResolveConflicts
source§impl FromStr for ResolveConflicts
impl FromStr for ResolveConflicts
source§impl Hash for ResolveConflicts
impl Hash for ResolveConflicts
source§impl Ord for ResolveConflicts
impl Ord for ResolveConflicts
source§fn cmp(&self, other: &ResolveConflicts) -> Ordering
fn cmp(&self, other: &ResolveConflicts) -> 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 ResolveConflicts
impl PartialEq for ResolveConflicts
source§fn eq(&self, other: &ResolveConflicts) -> bool
fn eq(&self, other: &ResolveConflicts) -> bool
self and other values to be equal, and is used
by ==.source§impl PartialOrd for ResolveConflicts
impl PartialOrd for ResolveConflicts
source§fn partial_cmp(&self, other: &ResolveConflicts) -> Option<Ordering>
fn partial_cmp(&self, other: &ResolveConflicts) -> 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 ResolveConflicts
impl StructuralEq for ResolveConflicts
impl StructuralPartialEq for ResolveConflicts
Auto Trait Implementations§
impl RefUnwindSafe for ResolveConflicts
impl Send for ResolveConflicts
impl Sync for ResolveConflicts
impl Unpin for ResolveConflicts
impl UnwindSafe for ResolveConflicts
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.