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