Enum aws_sdk_customerprofiles::types::Gender
source ยท #[non_exhaustive]pub enum Gender {
Female,
Male,
Unspecified,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Gender
, 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 gender = unimplemented!();
match gender {
Gender::Female => { /* ... */ },
Gender::Male => { /* ... */ },
Gender::Unspecified => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when gender
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Gender::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Gender::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 Gender::NewFeature
is defined.
Specifically, when gender
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Gender::NewFeature
also yielding "NewFeature"
.
Explicitly matching on the Unknown
variant should
be avoided for two reasons:
- The inner data
UnknownVariantValue
is opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms.
Variants (Non-exhaustive)ยง
This enum is marked as non-exhaustive
Female
Male
Unspecified
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.
Implementationsยง
Trait Implementationsยง
sourceยงimpl Ord for Gender
impl Ord for Gender
1.21.0 ยท sourceยงfn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
sourceยงimpl PartialEq for Gender
impl PartialEq for Gender
sourceยงimpl PartialOrd for Gender
impl PartialOrd for Gender
1.0.0 ยท sourceยงfn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Eq for Gender
impl StructuralPartialEq for Gender
Auto Trait Implementationsยง
impl Freeze for Gender
impl RefUnwindSafe for Gender
impl Send for Gender
impl Sync for Gender
impl Unpin for Gender
impl UnwindSafe for Gender
Blanket Implementationsยง
sourceยงimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
sourceยงfn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceยงimpl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
sourceยงimpl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
sourceยงimpl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
sourceยงfn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.sourceยงimpl<T> Instrument for T
impl<T> Instrument for T
sourceยงfn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourceยงfn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceยงimpl<T> IntoEither for T
impl<T> IntoEither for T
sourceยงfn 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 moresourceยงfn 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