Enum aws_sdk_codebuild::types::EnvironmentType
source · #[non_exhaustive]pub enum EnvironmentType {
ArmContainer,
ArmLambdaContainer,
LinuxContainer,
LinuxGpuContainer,
LinuxLambdaContainer,
WindowsContainer,
WindowsServer2019Container,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against EnvironmentType
, 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 environmenttype = unimplemented!();
match environmenttype {
EnvironmentType::ArmContainer => { /* ... */ },
EnvironmentType::ArmLambdaContainer => { /* ... */ },
EnvironmentType::LinuxContainer => { /* ... */ },
EnvironmentType::LinuxGpuContainer => { /* ... */ },
EnvironmentType::LinuxLambdaContainer => { /* ... */ },
EnvironmentType::WindowsContainer => { /* ... */ },
EnvironmentType::WindowsServer2019Container => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when environmenttype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant EnvironmentType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
EnvironmentType::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 EnvironmentType::NewFeature
is defined.
Specifically, when environmenttype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on EnvironmentType::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
ArmContainer
ArmLambdaContainer
LinuxContainer
LinuxGpuContainer
LinuxLambdaContainer
WindowsContainer
WindowsServer2019Container
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 EnvironmentType
impl EnvironmentType
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 EnvironmentType
impl AsRef<str> for EnvironmentType
source§impl Clone for EnvironmentType
impl Clone for EnvironmentType
source§fn clone(&self) -> EnvironmentType
fn clone(&self) -> EnvironmentType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for EnvironmentType
impl Debug for EnvironmentType
source§impl From<&str> for EnvironmentType
impl From<&str> for EnvironmentType
source§impl FromStr for EnvironmentType
impl FromStr for EnvironmentType
source§impl Hash for EnvironmentType
impl Hash for EnvironmentType
source§impl Ord for EnvironmentType
impl Ord for EnvironmentType
source§fn cmp(&self, other: &EnvironmentType) -> Ordering
fn cmp(&self, other: &EnvironmentType) -> 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 EnvironmentType
impl PartialEq for EnvironmentType
source§fn eq(&self, other: &EnvironmentType) -> bool
fn eq(&self, other: &EnvironmentType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for EnvironmentType
impl PartialOrd for EnvironmentType
source§fn partial_cmp(&self, other: &EnvironmentType) -> Option<Ordering>
fn partial_cmp(&self, other: &EnvironmentType) -> 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 EnvironmentType
impl StructuralEq for EnvironmentType
impl StructuralPartialEq for EnvironmentType
Auto Trait Implementations§
impl RefUnwindSafe for EnvironmentType
impl Send for EnvironmentType
impl Sync for EnvironmentType
impl Unpin for EnvironmentType
impl UnwindSafe for EnvironmentType
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.