Re: Suggestion: names-isolation-statement

[pocomane <pocomane_7a@...>]

Il sab 13 lug 2019, 12:53 Viacheslav Usov <via.usov@gmail.com> :

This might solve the long-standing problem with globals.

What about something like the following?

x = 0

y = 1

local print, x = print, x

do <error-on-free-name>

  print(x) -- no issue

  print(_ENV.y) -- no issue

  print(y) -- error at compile time

end

I.e. inside the annotated do/end block, any free name raises an error at compile time, instead of being translated to _ENV.y .