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