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