Deep `....`rest operator about civet HOT 2 CLOSED

I could see ....array as shorthand for ...array.flat() (and similar magic for function parameters). There are several examples of this in the Civet parser. For example:

  TopLevelSingleLineStatements:first NestedTopLevelStatements*:rest ->
    return [
      ...first.map(s => ["", ...s]),
      ...rest.flat(),
    ]

Is this clearer with ....rest instead? I'm not totally sure. It might be easily misread. ......rest (like two ...s) is maybe more intuitive to me, though we might be getting a little silly notation-wise. What do others think?

I don't think it makes sense to flatten other objects.

from civet.

Four consecutive dots already has a meaning: https://civet.dev/playground?code=ZiAuLi4u

from civet.