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