#[non_exhaustive]pub enum Icd10CmTraitName {
Diagnosis,
Hypothetical,
LowConfidence,
Negation,
PertainsToFamily,
Sign,
Symptom,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Icd10CmTraitName
, 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 icd10cmtraitname = unimplemented!();
match icd10cmtraitname {
Icd10CmTraitName::Diagnosis => { /* ... */ },
Icd10CmTraitName::Hypothetical => { /* ... */ },
Icd10CmTraitName::LowConfidence => { /* ... */ },
Icd10CmTraitName::Negation => { /* ... */ },
Icd10CmTraitName::PertainsToFamily => { /* ... */ },
Icd10CmTraitName::Sign => { /* ... */ },
Icd10CmTraitName::Symptom => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when icd10cmtraitname
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Icd10CmTraitName::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Icd10CmTraitName::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 Icd10CmTraitName::NewFeature
is defined.
Specifically, when icd10cmtraitname
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Icd10CmTraitName::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
Diagnosis
Hypothetical
LowConfidence
Negation
PertainsToFamily
Sign
Symptom
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 Icd10CmTraitName
impl Icd10CmTraitName
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 Icd10CmTraitName
impl AsRef<str> for Icd10CmTraitName
source§impl Clone for Icd10CmTraitName
impl Clone for Icd10CmTraitName
source§fn clone(&self) -> Icd10CmTraitName
fn clone(&self) -> Icd10CmTraitName
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for Icd10CmTraitName
impl Debug for Icd10CmTraitName
source§impl Display for Icd10CmTraitName
impl Display for Icd10CmTraitName
source§impl From<&str> for Icd10CmTraitName
impl From<&str> for Icd10CmTraitName
source§impl FromStr for Icd10CmTraitName
impl FromStr for Icd10CmTraitName
source§impl Hash for Icd10CmTraitName
impl Hash for Icd10CmTraitName
source§impl Ord for Icd10CmTraitName
impl Ord for Icd10CmTraitName
source§fn cmp(&self, other: &Icd10CmTraitName) -> Ordering
fn cmp(&self, other: &Icd10CmTraitName) -> 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 Icd10CmTraitName
impl PartialEq for Icd10CmTraitName
source§fn eq(&self, other: &Icd10CmTraitName) -> bool
fn eq(&self, other: &Icd10CmTraitName) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for Icd10CmTraitName
impl PartialOrd for Icd10CmTraitName
source§fn partial_cmp(&self, other: &Icd10CmTraitName) -> Option<Ordering>
fn partial_cmp(&self, other: &Icd10CmTraitName) -> 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 Icd10CmTraitName
impl StructuralPartialEq for Icd10CmTraitName
Auto Trait Implementations§
impl Freeze for Icd10CmTraitName
impl RefUnwindSafe for Icd10CmTraitName
impl Send for Icd10CmTraitName
impl Sync for Icd10CmTraitName
impl Unpin for Icd10CmTraitName
impl UnwindSafe for Icd10CmTraitName
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