Enum rustc_attr::builtin::DeprecatedSince
source · pub enum DeprecatedSince {
RustcVersion(RustcVersion),
Future,
NonStandard(Symbol),
Unspecified,
Err,
}
Expand description
Release in which an API is deprecated.
Variants§
RustcVersion(RustcVersion)
Future
Deprecated in the future (“to be determined”).
NonStandard(Symbol)
feature(staged_api)
is off. Deprecation versions outside the standard
library are allowed to be arbitrary strings, for better or worse.
Unspecified
Deprecation version is unspecified but optional.
Err
Failed to parse a deprecation version, or the deprecation version is unspecified and required. An error has already been emitted.
Trait Implementations§
source§impl Clone for DeprecatedSince
impl Clone for DeprecatedSince
source§fn clone(&self) -> DeprecatedSince
fn clone(&self) -> DeprecatedSince
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for DeprecatedSince
impl Debug for DeprecatedSince
source§impl<__D: SpanDecoder> Decodable<__D> for DeprecatedSince
impl<__D: SpanDecoder> Decodable<__D> for DeprecatedSince
source§impl<__E: SpanEncoder> Encodable<__E> for DeprecatedSince
impl<__E: SpanEncoder> Encodable<__E> for DeprecatedSince
source§impl<__CTX> HashStable<__CTX> for DeprecatedSincewhere
__CTX: HashStableContext,
impl<__CTX> HashStable<__CTX> for DeprecatedSincewhere
__CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
impl Copy for DeprecatedSince
Auto Trait Implementations§
impl Freeze for DeprecatedSince
impl RefUnwindSafe for DeprecatedSince
impl Send for DeprecatedSince
impl Sync for DeprecatedSince
impl Unpin for DeprecatedSince
impl UnwindSafe for DeprecatedSince
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'a mut [T]
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
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Creates a filterable data provider with the given name for debugging. Read more
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>
Converts
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>
Converts
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 moresource§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
impl<T> MaybeSendSync for T
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 8 bytes
Size for each variant:
RustcVersion
: 6 bytesFuture
: 0 bytesNonStandard
: 6 bytesUnspecified
: 0 bytesErr
: 0 bytes