Enum aws_sdk_rum::model::Telemetry
source · #[non_exhaustive]
pub enum Telemetry {
Errors,
Http,
Performance,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Telemetry
, 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 telemetry = unimplemented!();
match telemetry {
Telemetry::Errors => { /* ... */ },
Telemetry::Http => { /* ... */ },
Telemetry::Performance => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when telemetry
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Telemetry::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Telemetry::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 Telemetry::NewFeature
is defined.
Specifically, when telemetry
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Telemetry::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
Errors
Includes JS error event plugin
Http
Includes X-Ray Xhr and X-Ray Fetch plugin
Performance
Includes navigation, paint, resource and web vital event plugins
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl Ord for Telemetry
impl Ord for Telemetry
source§impl PartialEq<Telemetry> for Telemetry
impl PartialEq<Telemetry> for Telemetry
source§impl PartialOrd<Telemetry> for Telemetry
impl PartialOrd<Telemetry> for Telemetry
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 Telemetry
impl StructuralEq for Telemetry
impl StructuralPartialEq for Telemetry
Auto Trait Implementations§
impl RefUnwindSafe for Telemetry
impl Send for Telemetry
impl Sync for Telemetry
impl Unpin for Telemetry
impl UnwindSafe for Telemetry
Blanket Implementations§
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.