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