Haskell indentation weirdly re-indents lines after sp-kill-sexp

[mrkkrp]

I don't know why this happens, quick serch doens't show any relevant hook or advices in haskell-indentation.hs. However, when you call sp-kill-sexp (from Smartparens) with haskell-indentation-mode enabled, current line is weirdly re-indented after deletion of the sexp. So, every time you need to re-indent it.

[mrkkrp]

It also happens after sp-kill-hybrid-sexp and who knows what else. Ahhh…

[mrkkrp]

There must be a way to disable re-indenting after this sort of operations.

[gracjan]

Can you add a test case to `tests/haskell-indentation-tests.el`?

[mrkkrp]

To add tests for this, we first need to understand why exactly this happens. I don't think installing smartparens package only to test these cases is the right thing to do. Most probably we're seeing something that has nothing to do with smartparens, but just somehow is visible in this case.

[gracjan]

If the test could test that 'something' without smartparens then that is even better in my book.

[bergey]

After killing, smartparens calls sp--cleanup-after-kill which calls sp--indent-region. You can turn this off (for haskell) with (add-to-list 'sp-no-reindent-after-kill-modes 'haskell-mode)

I suppose this makes sense in languages that delimit blocks with characters rather than indentation. The other values of sp-no-reindent-after-kill-modes seem to confirm this.

[gracjan]

In this case this issue is a duplicate of #796. Closing as dupe.

[gracjan]

Noted the need of indent-region in #1032.

[mrkkrp]

Perfect, thanks guys!