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