it's impossible to use @ as void attribute of a formation

[yegor256]

This, in my opinion, is a legit program:

[@] > foo
  [] > hello
    QQ.io.stdout > @
     "Hello, world!"

foo 42 > x

x.plus 5

x.hello

It is similar to this:

[x] > foo
  x > @
  [] > hello
    QQ.io.stdout > @
     "Hello, world!"

However, the first snippet should also be syntactically valid. Currently, it's not.