Struct tantivy::query::EmptyWeight [−][src]
pub struct EmptyWeight;
Expand description
EmptyWeight
is a dummy Weight
in which no document matches.
It is useful for tests and handling edge cases.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for EmptyWeight
impl Send for EmptyWeight
impl Sync for EmptyWeight
impl Unpin for EmptyWeight
impl UnwindSafe for EmptyWeight
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
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Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
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Convert &Trait
(where Trait: Downcast
) to &Any
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Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
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