Variables in {.compileTime.} cannot be captured if the capturing closure is nested twice

[alaviss]

Example

proc foo() {.compileTime.} =
  var x = 0

  proc bar() =
    proc foobar() =
      x = 1

    foobar()

  bar()

static: foo()

Actual Output

test.nim(6, 7) Error: 'x' is inaccesible because run-time values cannot be captured in a compile-time context

Additional Information

• If foobar body is inlined into bar, no error will occur.

• This is found while fixing npeg.

[zerbina]

The example code not working is deliberate, although for no good nor principled reason -- I'll remove the arbitrary restriction.