#[non_exhaustive]pub enum EmbeddingIdentityType {
Anonymous,
Iam,
Quicksight,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against EmbeddingIdentityType, 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 embeddingidentitytype = unimplemented!();
match embeddingidentitytype {
EmbeddingIdentityType::Anonymous => { /* ... */ },
EmbeddingIdentityType::Iam => { /* ... */ },
EmbeddingIdentityType::Quicksight => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when embeddingidentitytype represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant EmbeddingIdentityType::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
EmbeddingIdentityType::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 EmbeddingIdentityType::NewFeature is defined.
Specifically, when embeddingidentitytype represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on EmbeddingIdentityType::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
Anonymous
Iam
Quicksight
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 EmbeddingIdentityType
impl EmbeddingIdentityType
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 EmbeddingIdentityType
impl AsRef<str> for EmbeddingIdentityType
source§impl Clone for EmbeddingIdentityType
impl Clone for EmbeddingIdentityType
source§fn clone(&self) -> EmbeddingIdentityType
fn clone(&self) -> EmbeddingIdentityType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for EmbeddingIdentityType
impl Debug for EmbeddingIdentityType
source§impl Display for EmbeddingIdentityType
impl Display for EmbeddingIdentityType
source§impl From<&str> for EmbeddingIdentityType
impl From<&str> for EmbeddingIdentityType
source§impl FromStr for EmbeddingIdentityType
impl FromStr for EmbeddingIdentityType
source§impl Hash for EmbeddingIdentityType
impl Hash for EmbeddingIdentityType
source§impl Ord for EmbeddingIdentityType
impl Ord for EmbeddingIdentityType
source§fn cmp(&self, other: &EmbeddingIdentityType) -> Ordering
fn cmp(&self, other: &EmbeddingIdentityType) -> 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 EmbeddingIdentityType
impl PartialEq for EmbeddingIdentityType
source§fn eq(&self, other: &EmbeddingIdentityType) -> bool
fn eq(&self, other: &EmbeddingIdentityType) -> bool
self and other values to be equal, and is used
by ==.source§impl PartialOrd for EmbeddingIdentityType
impl PartialOrd for EmbeddingIdentityType
source§fn partial_cmp(&self, other: &EmbeddingIdentityType) -> Option<Ordering>
fn partial_cmp(&self, other: &EmbeddingIdentityType) -> 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 EmbeddingIdentityType
impl StructuralPartialEq for EmbeddingIdentityType
Auto Trait Implementations§
impl Freeze for EmbeddingIdentityType
impl RefUnwindSafe for EmbeddingIdentityType
impl Send for EmbeddingIdentityType
impl Sync for EmbeddingIdentityType
impl Unpin for EmbeddingIdentityType
impl UnwindSafe for EmbeddingIdentityType
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<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit)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.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more