levsha.impl.internal.debox

Cropped copy of debox.Map. https://raw.githubusercontent.com/non/debox/master/src/main/scala/debox/Map.scala

https://github.com/non/debox

Set is String mutable hash set, with open addressing and double hashing.

Set provides constant-time membership tests, and amortized constant-time addition and removal. One underlying array stores items, and another tracks which buckets are used and defined.

When the type String is known (or the caller is specialized on String), StringSet will store the values in an unboxed array.