Change query::visitors::*Collector to visitors #296
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Instead of allocating a Vec to put the query results in, the Collectors are changed to call a visitor instead. If the call-site does want a Vec, they can easily collect themselves. We ourselves do not actually need this, so we can remove a couple of Vecs and corresponding allocations for some operations. The *Collectors are also appropriately renamed to *Visitor.
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I've missed explaining the motivation for this change. |
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Since the old *Collectors are removed, this is an API-breaking change.
They could easily be re-added on top of the Visitors though.