Type instantiation is excessively deep in ReadonlyDeep

[marekdedic]

Hi,
I recently updated my declaration of ReadonlyDeep to use the new call signature handling from #359, however, I get error TS2589: Type instantiation is excessively deep and possibly infinite. :(

See the repro in the playground for details.

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[skarab42]

@marekdedic I'm not sure why you want to make the jQuery object read-only (and deep). It's a huge object with lots of references to HTML objects and as the update includes index signatures all these objects will be made read-only deep which makes TS reach its memory limit very quickly.

[marekdedic]

Hi, for the same reason you'd make anything read-only I think 😀 To have stricter control over what gets modified...

I agree that the jQuery object is huge, that's why it crashes...

[fregante]

I don’t think it's practical/possible because it would ask to make all the nested DOM types readonly too, not just jQuery methods