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