Enum aws_sdk_gamelift::types::BuildStatus
source · #[non_exhaustive]pub enum BuildStatus {
Failed,
Initialized,
Ready,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against BuildStatus
, 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 buildstatus = unimplemented!();
match buildstatus {
BuildStatus::Failed => { /* ... */ },
BuildStatus::Initialized => { /* ... */ },
BuildStatus::Ready => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when buildstatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant BuildStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
BuildStatus::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 BuildStatus::NewFeature
is defined.
Specifically, when buildstatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on BuildStatus::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
Failed
Initialized
Ready
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 BuildStatus
impl BuildStatus
source§impl BuildStatus
impl BuildStatus
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 BuildStatus
impl AsRef<str> for BuildStatus
source§impl Clone for BuildStatus
impl Clone for BuildStatus
source§fn clone(&self) -> BuildStatus
fn clone(&self) -> BuildStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for BuildStatus
impl Debug for BuildStatus
source§impl Display for BuildStatus
impl Display for BuildStatus
source§impl From<&str> for BuildStatus
impl From<&str> for BuildStatus
source§impl FromStr for BuildStatus
impl FromStr for BuildStatus
source§impl Hash for BuildStatus
impl Hash for BuildStatus
source§impl Ord for BuildStatus
impl Ord for BuildStatus
source§fn cmp(&self, other: &BuildStatus) -> Ordering
fn cmp(&self, other: &BuildStatus) -> 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 BuildStatus
impl PartialEq for BuildStatus
source§fn eq(&self, other: &BuildStatus) -> bool
fn eq(&self, other: &BuildStatus) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for BuildStatus
impl PartialOrd for BuildStatus
source§fn partial_cmp(&self, other: &BuildStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &BuildStatus) -> 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 BuildStatus
impl StructuralPartialEq for BuildStatus
Auto Trait Implementations§
impl Freeze for BuildStatus
impl RefUnwindSafe for BuildStatus
impl Send for BuildStatus
impl Sync for BuildStatus
impl Unpin for BuildStatus
impl UnwindSafe for BuildStatus
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> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more