Changelog for symbolize

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to the Haskell Package Versioning Policy.

Unreleased

1.0.0.1

• Minor documentation improvements

1.0.0.0 - 2025-02-17

Completely overhauled implementation:

• The old implementation used newtype Symbol = Symbol Word, adding Weak-pointers to this Word.
  • This was brittle, since those Words would often get inlined, potentially triggering weak-pointer finalization (too) early.
  • The symbol table had to keep track of mappings in both directions.
  • Int also meant that unintern required access to the symbol table.
• The new implementation uses newtype Symbol# = Symbol# ByteArray#, and adds weak pointers to this unlifted ByteArray#.
  • Much safer, this is how mkWeak is intended to be used.
  • The symbol table now only needs to store 'TextHash -> Weak Symbol', and is essentially just a 'weak hashset'. Less than half the memory usage!
  • Much faster unintern, as it no longer needs access to the symbol table but is a simple pointer dereference.

0.1.0.1 / 0.1.0.2 - 2023-11-24

Fixes in the README and package description only, for better rendering on Hackage.

0.1.0.0 - 2023-11-24

Initial version