pub enum IdCount {
Fixed(NonZeroUsize),
Dynamic(Option<NonZeroUsize>),
}Expand description
Indicate whether the number of items returned from search are bounded by a fixed amount or can grow to an unknown size.
Variants§
Fixed(NonZeroUsize)
The number of ids returned from search are known to be bounded.
Dynamic(Option<NonZeroUsize>)
The number of ids returned from search is unknown or unbounded. A size hint can be provided that can potentially improve performance.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for IdCount
impl RefUnwindSafe for IdCount
impl Send for IdCount
impl Sync for IdCount
impl Unpin for IdCount
impl UnsafeUnpin for IdCount
impl UnwindSafe for IdCount
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
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> DispatchRule<T> for T
impl<T> DispatchRule<T> for T
Source§type Error = Infallible
type Error = Infallible
Errors that can occur during
convert.Source§fn try_match(_from: &T) -> Result<MatchScore, FailureScore>
fn try_match(_from: &T) -> Result<MatchScore, FailureScore>
Source§fn convert(from: T) -> Result<T, <T as DispatchRule<T>>::Error>
fn convert(from: T) -> Result<T, <T as DispatchRule<T>>::Error>
Perform the actual conversion. Read more
Source§fn description(f: &mut Formatter<'_>, from: Option<&T>) -> Result<(), Error>
fn description(f: &mut Formatter<'_>, from: Option<&T>) -> Result<(), Error>
Write a description of the dispatch rule and outcome to the formatter. Read more
Source§fn try_match_verbose<'a>(
from: &'a From,
) -> Result<MatchScore, TaggedFailureScore<'a>>where
Self: 'a,
fn try_match_verbose<'a>(
from: &'a From,
) -> Result<MatchScore, TaggedFailureScore<'a>>where
Self: 'a,
The equivalent of
try_match but returns a reason for a failed score. Read more