ml_get errors displayed when deleting text from a insert complete function

[Yegappan Lakshmanan]

Hi,

I am getting E315: ml_get internal errors when running the following function:

func Test()
  func CompleteFunc(findstart, base)
    if a:findstart == 1
      return col('.') - 1
    endif
    normal dd
    return ['a', 'b']
  endfunc
  new
  set completefunc=CompleteFunc
  call setline(1, ['', 'abcd', ''])
  2d
  exe "normal 2G$a\<C-X>\<C-U>"
endfunc

call Test()

- Yegappan

[Bram Moolenaar]

Best would be to forbid changing the text while evaluating
'completefunc'. I vaguely remember that this would break some plugin,
but I can't remember why. If that does happen, we could forbid deleting
and inserting text lines, there should be no reason for that during
completion. But that would require introducing a new mechanism.

--
It doesn't really matter what you are able to do if you don't do it.
(Bram Moolenaar)

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