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