Module sink 

Where scored records go: a top-k tracker or a plain collector.

Structs

CollectAll

Keeps everything it is offered.

Hit

A scored record. Ordered so that a greater hit is a better one: higher score first, then lower id.

TopKSink

Keeps the k best hits (highest score, ties to the lower id).

Traits

ScoreSink

Consumer of (id, score) pairs produced by the search loop.