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