#[non_exhaustive]pub enum ActiveDirectoryErrorType {
DomainNotFound,
IncompatibleDomainMode,
InvalidDomainStage,
WrongVpc,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against ActiveDirectoryErrorType
, 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 activedirectoryerrortype = unimplemented!();
match activedirectoryerrortype {
ActiveDirectoryErrorType::DomainNotFound => { /* ... */ },
ActiveDirectoryErrorType::IncompatibleDomainMode => { /* ... */ },
ActiveDirectoryErrorType::InvalidDomainStage => { /* ... */ },
ActiveDirectoryErrorType::WrongVpc => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when activedirectoryerrortype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant ActiveDirectoryErrorType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
ActiveDirectoryErrorType::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 ActiveDirectoryErrorType::NewFeature
is defined.
Specifically, when activedirectoryerrortype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on ActiveDirectoryErrorType::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.
The type of error relating to Microsoft Active Directory. NOT_FOUND means that no directory was found by specifying the given directory. INCOMPATIBLE_MODE means that the directory specified is not a Microsoft AD directory. WRONG_VPC means that the specified directory isn't accessible from the specified VPC. WRONG_STAGE means that the specified directory isn't currently in the ACTIVE state.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
DomainNotFound
IncompatibleDomainMode
InvalidDomainStage
WrongVpc
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 ActiveDirectoryErrorType
impl ActiveDirectoryErrorType
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 ActiveDirectoryErrorType
impl AsRef<str> for ActiveDirectoryErrorType
source§impl Clone for ActiveDirectoryErrorType
impl Clone for ActiveDirectoryErrorType
source§fn clone(&self) -> ActiveDirectoryErrorType
fn clone(&self) -> ActiveDirectoryErrorType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for ActiveDirectoryErrorType
impl Debug for ActiveDirectoryErrorType
source§impl Display for ActiveDirectoryErrorType
impl Display for ActiveDirectoryErrorType
source§impl From<&str> for ActiveDirectoryErrorType
impl From<&str> for ActiveDirectoryErrorType
source§impl FromStr for ActiveDirectoryErrorType
impl FromStr for ActiveDirectoryErrorType
source§impl Hash for ActiveDirectoryErrorType
impl Hash for ActiveDirectoryErrorType
source§impl Ord for ActiveDirectoryErrorType
impl Ord for ActiveDirectoryErrorType
source§fn cmp(&self, other: &ActiveDirectoryErrorType) -> Ordering
fn cmp(&self, other: &ActiveDirectoryErrorType) -> 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 ActiveDirectoryErrorType
impl PartialEq for ActiveDirectoryErrorType
source§fn eq(&self, other: &ActiveDirectoryErrorType) -> bool
fn eq(&self, other: &ActiveDirectoryErrorType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for ActiveDirectoryErrorType
impl PartialOrd for ActiveDirectoryErrorType
source§fn partial_cmp(&self, other: &ActiveDirectoryErrorType) -> Option<Ordering>
fn partial_cmp(&self, other: &ActiveDirectoryErrorType) -> 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 ActiveDirectoryErrorType
impl StructuralPartialEq for ActiveDirectoryErrorType
Auto Trait Implementations§
impl Freeze for ActiveDirectoryErrorType
impl RefUnwindSafe for ActiveDirectoryErrorType
impl Send for ActiveDirectoryErrorType
impl Sync for ActiveDirectoryErrorType
impl Unpin for ActiveDirectoryErrorType
impl UnwindSafe for ActiveDirectoryErrorType
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