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