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