Struct tantivy::query::EmptyScorer
source · pub struct EmptyScorer;
Expand description
EmptyScorer
is a dummy Scorer
in which no document matches.
It is useful for tests and handling edge cases.
Trait Implementations§
source§impl DocSet for EmptyScorer
impl DocSet for EmptyScorer
source§fn doc(&self) -> DocId
fn doc(&self) -> DocId
Returns the current document
Right after creating a new
DocSet
, the docset points to the first document. Read moresource§fn fill_buffer(&mut self, buffer: &mut [DocId; 64]) -> usize
fn fill_buffer(&mut self, buffer: &mut [DocId; 64]) -> usize
Fills a given mutable buffer with the next doc ids from the
DocSet
Read moresource§fn count(&mut self, alive_bitset: &AliveBitSet) -> u32
fn count(&mut self, alive_bitset: &AliveBitSet) -> u32
Returns the number documents matching.
Calling this method consumes the
DocSet
.source§fn count_including_deleted(&mut self) -> u32
fn count_including_deleted(&mut self) -> u32
Returns the count of documents, deleted or not.
Calling this method consumes the
DocSet
. Read moreAuto Trait Implementations§
impl Freeze for EmptyScorer
impl RefUnwindSafe for EmptyScorer
impl Send for EmptyScorer
impl Sync for EmptyScorer
impl Unpin for EmptyScorer
impl UnwindSafe for EmptyScorer
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> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.