intern

A small library for best-effort interning and memoization of arbitrary types, with specializations for string, []byte, and []rune.

Compared to the josharian/intern upstream this fork:

• supports also []rune in addition to string and []byte
• makes use of generics (as such it requires Go >= 1.18)
• provides a generic Map[K, V] interner that allows to intern/memoize custom types (see ExampleMap)
• optionally provide a unsafe-based implementation that is ~25% faster than the regular one and that it is more stable (less likely to cause OOM errors under pathological usage patterns): it can be enabled with the intern_unsafe build tag

For a blog post introducing string interning, see: https://commaok.xyz/post/intern-strings/

License: MIT