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