Bug: infinite loop(s) on terriajs

[pjonsson]

🐛 Bug Report

• TypeStat version: 0.8.1
• TypeScript version: 5.2
• Node version: 20

Actual Behavior

Starting wave 68...
Completed wave 68. Wrote mutations to 0 files.
Starting wave 69...
Completed wave 69. Wrote mutations to 1 file.
It looks like TypeStat has ended up in an infinite loop.

Bailing out of applying more mutations.

Please file an issue to help us fix the bug for you:

https://github.com/JoshuaKGoldberg/TypeStat

Finished options object 1 of 1.


All done! ✨

Assuming there is no convergence, this is better than 0.7.3, that did 120+ rounds before bailing out with the same message.

Expected Behavior

Reproduction

git clone https://github.com/terriajs/terriajs
cd terriajs
docker run --user node -it -v `pwd`:/files node:20 bash

Put the following in typestat.json inside the terriajs directory:

{
  "fixes": {
    "incompleteTypes": true
  },
  "include": ["lib/**/*.{ts,tsx}"],
  "projectPath": "./tsconfig.json"
}

and run these commands in the docker container:

cd files
yarn install
npx typestat --config typestat.json

[JoshuaKGoldberg]

Heh, I was hoping #2024 would fix this, but it looks like no. I ran out of time today to investigate more deeply but there are definitely some more bugs in TypeStat to be fixed. Thanks so much for trying the project out and giving a great reproduction repository @pjonsson! 🙌