type performance: 1,300+ lines of overrides for one function

[dimitropoulos]

Which @ngrx/* package(s) are the source of the bug?

signals

Minimal reproduction of the bug/regression with instructions

hi! I'm working on TypeSlayer a TypeScript types performance/analysis tool.

the TLRD; is it helps you find why your typechecking is slow. it's in early access now (more than happy to provide any maintainers an access code, DM me dimitropoulos on discord) and early testers are starting to send me areas they're finding in their codebases that are causing slowdowns. one person used TypeSlayer to find slowness coming from this type, which has 1,300+ lines of overrides (56 of them in total).

I'd like to better understand why this type exists, what you're trying to accomplish, and if you're interested in finding a way to better gauge the cost/benefit on the impact on your user's typechecking time.

thoughts?

I've seen similar techniques used in the past (example, example) but never to this extent.

Expected behavior

fewer than 10 overrides, or at least fewer than 56

Versions of NgRx, Angular, Node, affected browser(s) and operating system(s)

n/a - just the types

Other information

No response

I would be willing to submit a PR to fix this issue

• Yes
• No