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