pub struct Neutral<S> { /* private fields */ }Expand description
A predicate that always returns Cacheable.
Useful as a starting point for predicate chains or as a no-op predicate.
Implementations§
Trait Implementations§
Source§impl<S> Predicate for Neutral<S>where
S: Send,
impl<S> Predicate for Neutral<S>where
S: Send,
Source§fn check<'life0, 'async_trait>(
&'life0 self,
subject: <Neutral<S> as Predicate>::Subject,
) -> Pin<Box<dyn Future<Output = PredicateResult<<Neutral<S> as Predicate>::Subject>> + Send + 'async_trait>>where
'life0: 'async_trait,
Neutral<S>: 'async_trait,
fn check<'life0, 'async_trait>(
&'life0 self,
subject: <Neutral<S> as Predicate>::Subject,
) -> Pin<Box<dyn Future<Output = PredicateResult<<Neutral<S> as Predicate>::Subject>> + Send + 'async_trait>>where
'life0: 'async_trait,
Neutral<S>: 'async_trait,
Evaluate whether the subject should be cached. Read more
impl<S> Copy for Neutral<S>where
S: Copy,
Auto Trait Implementations§
impl<S> Freeze for Neutral<S>
impl<S> RefUnwindSafe for Neutral<S>
impl<S> Send for Neutral<S>
impl<S> Sync for Neutral<S>
impl<S> Unpin for Neutral<S>
impl<S> UnwindSafe for Neutral<S>
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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§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> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.