Error with nested map

[etiennedeg]

The following code

map(x->x, map(x->x, []) )

result in this error

TypeError: in new, expected UnionAll, got Type{Tuple}

I didn't manage to make it smaller, I have no clue on what's going on.

[aviatesk]

Thanks for your report ! Will dig into this over the weekend.

[aviatesk]

Hm, I couldn't repro this.
What's the versions of your JET and julia ?

[etiennedeg]

Ah, it's nastier than what I thought, it only works when I have one of my personal package loaded, I will investigate this tonight and give you a cleaner MWE.

[etiennedeg]

Ok, the problem is not that much on my package, but on the JuMP package.
Executing using JuMP before reporting the file should be sufficient to reproduce it, but it is probably possible to dig down a bit more, I will try to do what I can...

[aviatesk]

Okay, this is the issue of Julia:

• TypeError happens when constructing Fix2 struct with Vararg Tuple JuliaLang/julia#40054
• Strange error in constructor to Base.Fix2 JuliaLang/julia#35661

This doesn't happen on the nightly Julia, though.