Ormolu deletes comments from source code

[kolree]

The original input:

instance Foo Int where

  -- Here goes a comment.
  --
  --   something
  -- * something

  foo :: Int
  foo = 0

gets reformatted into:

instance Foo Int where
  -- Here goes a comment.
  --
  --   something

  foo :: Int
  foo = 0

The part of the comment starting with -- * is lost.

[mrkkrp]

Please provide code snippets that show your original input and the result after formatting. I do not know how to make that site format the snippet (Ctrl-I does nothing for me) and the example probably can be minified.

[symbiont-eric-torreborre]

Here is another example:

function1 :: Int -> Text
function1 n =
  function2 n "***"
  where
    -- | this is function 2
    --   it calls show
    function2 n t = show n <> t

gets reformatted into

function1 :: Int -> Text
function1 n =
  function2 n "***"
  where
    function2 n t = show n <> t

The whole haddock-like section disappears

[mrkkrp]

That’s different, it’s #474.

[symbiont-eric-torreborre]

Thanks Mark.

[mrkkrp]

Apparently this is how GHC parser works. It picks up the lines that start with -- * and removes them.

[mrkkrp]

Essentially the same as #474.

[symbiont-eric-torreborre]

Let's close it as a duplicate then.