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