FYI: typescript-eslint@v6 will remove parserServices.hasFullTypeInformation

[JoshuaKGoldberg]

👋 Hi! I'm one of the maintainers of typescript-eslint. We're getting ready to release a new v6 major version of the tooling, which includes some small breaking changes.

Coming over from typescript-eslint/typescript-eslint#7124: I see this repo contains references to hasFullTypeInformation. That property is something we've never recommended using (see that issue & typescript-eslint/typescript-eslint#7158). We recommend instead using ESLintUtils.getParserServices per https://typescript-eslint.io/developers/custom-rules#typed-rules.

If you really want to "progressively enhance" lint rules, parserServices.program will be null if type information isn't available. But we definitely recommend against that kind of rule behavior changing.

Overall, I'd suggest trying out typescript-eslint@v6 and making sure internal builds & downstream repos still compile & lint nicely with all the changes. Let me know if there's anything we can do to help with the v6 upgrade! 💖

[BleedingDev]

Hi,
I am using this rule in https://github.com/pegak/nauc-me-it and after update to v6 it fails with error:
3:31 Error: Parameter should have an immutability of at least "ReadonlyShallow" (actual: "Unknown"). functional/prefer-immutable-types

Could it be caused by this change?

[RebeccaStevens]

v6 isn't supported yet. I'll should be able to work on this sometime in the next week.
Theses' work that needs to be done both in repo and in https://github.com/RebeccaStevens/is-immutable-type

[BleedingDev]

Many thanks. Can I help? :)

[RebeccaStevens]

@pegak Thanks for the offer, but I should be good. I've already done the majority of the work back when v6 was in beta. I just need to finish it. I'm starting back on it now.

[RebeccaStevens]

6.0.0-next.1 is now available for testing.

[github-actions]

🎉 This issue has been resolved in version 6.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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