hamt

by raviqqe

raviqqe / hamt

Immutable and Memory-Efficient Maps and Sets in Go

209 Stars 8 Forks Last release: Not found The Unlicense 116 Commits 0 Releases

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hamt

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Immutable and Memory Efficient Maps and Sets in Go.

This package

hamt
provides immutable collection types of maps (associative arrays) and sets implemented as Hash-Array Mapped Tries (HAMTs). All operations of the collections, such as insert and delete, are immutable and create new ones keeping original ones unmodified.

Hash-Array Mapped Trie (HAMT) is a data structure popular as a map (a.k.a. associative array or dictionary) or set. Its immutable variant is adopted widely by functional programming languages like Scala and Clojure to implement immutable and memory-efficient associative arrays and sets.

Installation

go get github.com/raviqqe/hamt

Documentation

GoDoc

Technical notes

The implementation canonicalizes tree structures of HAMTs by eliminating intermediate nodes during delete operations as described in the CHAMP paper.

References

License

The Unlicense

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