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