Destructuring syntax does not respect const annotation

The const keyword seems to have no effect when used with the destructuring syntax in Julia 1.7+.

julia> t = (;a = 1, b = 2);

julia> const (;a, b) = t
(a = 1, b = 2)

julia> a = 3 # re-definition produces no error or warning, so a is not const

So I have to resort to the more lengthy code

const (a, b) = (t.a, t.b)

This was discussed before, but the workaround in a previous post doesn’t / no longer work with either Julia 1.8.0 or 1.7.3 on my computer.

Would it be desirable for Julia to implement the const annotation as used above? Or is there a language reason that it would be unsound?

That seems like a bug, please file this as a GitHub issue.


OK, done that.