Struct tantivy_fst::map::Difference

pub struct Difference<'m>(/* private fields */);

A stream of set difference over multiple map streams in lexicographic order.

The difference operation is taken with respect to the first stream and the rest of the streams. i.e., All elements in the first stream that do not appear in any other streams.

The 'm lifetime parameter refers to the lifetime of the underlying map.

Trait Implementations

impl<'a, 'm> Streamer<'a> for Difference<'m>

type Item = (&'a [u8], &'a [IndexedValue])

The type of the item emitted by this stream.

fn next(&'a mut self) -> Option<Self::Item>

Emits the next element in this stream, or None to indicate the stream has been exhausted.