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