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