Enum aws_sdk_datazone::types::UserProfileType
source · #[non_exhaustive]pub enum UserProfileType {
Iam,
Sso,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against UserProfileType
, 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 userprofiletype = unimplemented!();
match userprofiletype {
UserProfileType::Iam => { /* ... */ },
UserProfileType::Sso => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when userprofiletype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant UserProfileType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
UserProfileType::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 UserProfileType::NewFeature
is defined.
Specifically, when userprofiletype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on UserProfileType::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)§
This enum is marked as non-exhaustive
Iam
Sso
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for UserProfileType
impl AsRef<str> for UserProfileType
source§impl Clone for UserProfileType
impl Clone for UserProfileType
source§fn clone(&self) -> UserProfileType
fn clone(&self) -> UserProfileType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for UserProfileType
impl Debug for UserProfileType
source§impl From<&str> for UserProfileType
impl From<&str> for UserProfileType
source§impl FromStr for UserProfileType
impl FromStr for UserProfileType
source§impl Hash for UserProfileType
impl Hash for UserProfileType
source§impl Ord for UserProfileType
impl Ord for UserProfileType
source§fn cmp(&self, other: &UserProfileType) -> Ordering
fn cmp(&self, other: &UserProfileType) -> 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 UserProfileType
impl PartialEq for UserProfileType
source§fn eq(&self, other: &UserProfileType) -> bool
fn eq(&self, other: &UserProfileType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for UserProfileType
impl PartialOrd for UserProfileType
source§fn partial_cmp(&self, other: &UserProfileType) -> Option<Ordering>
fn partial_cmp(&self, other: &UserProfileType) -> 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 UserProfileType
impl StructuralEq for UserProfileType
impl StructuralPartialEq for UserProfileType
Auto Trait Implementations§
impl RefUnwindSafe for UserProfileType
impl Send for UserProfileType
impl Sync for UserProfileType
impl Unpin for UserProfileType
impl UnwindSafe for UserProfileType
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.