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