```ucm:hide
scratch/main> builtins.mergeio
```

```unison:hide
{{ # Doc
This is a *doc*! 

term link {x}

type link {type   Optional}

}}
x : 
  Nat 
  -> Nat
x y =
    x   =     1 + 1
    x + y
-- Should keep comments after

-- symbolyDefinition
(<|>) : Nat -> Nat -> (Nat, Nat)
(<|>) a b = (a, b)

symbolyEndOfBlock =
  x = 1
  (+:)


-- Test for a previous regression that added extra brackets.
oneLiner = {{ one liner }}
-- After

-- Before
explicit.doc = {{
# Here's a top-level doc

With a paragraph

Or two
}}
-- After

{{ A doc before an ability }}
ability Thing where
  more  : Nat -> Text -> Nat
  doThing  : Nat -> Int


{{ Ability with single constructor }}
structural ability Ask a where 
  ask : {Ask a} a

-- Regression test for: https://github.com/unisonweb/unison/issues/4666
provide : a -> '{Ask a} r -> r
provide a action = 
  h = cases
        {ask -> resume} -> handle resume a with h
        {r} -> r
  handle !action with h

{{ 
A Doc before a type 
}}
structural type Optional   a = More Text 
  | Some 
  | Other   a 
  | None Nat 

{{ A doc before a type with no type-vars }}
type Two = One Nat | Two Text

-- Regression for https://github.com/unisonweb/unison/issues/4669

multilineBold = {{

**This paragraph is really really really really really long and spans multiple lines 
with a strike-through block**

_This paragraph is really really really really really long and spans multiple lines 
with a strike-through block_

~This paragraph is really really really really really long and spans multiple lines 
with a strike-through block~

}}
```

```ucm
scratch/main> debug.format
```

Formatter should leave things alone if the file doesn't typecheck.

```unison:error
brokenDoc = {{ hello }} + 1
```

```ucm
scratch/main> debug.format
```