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OCamlFormat 0.26.1

We are pleased to announce the release of OCamlFormat 0.26.1!

This is the first OCamlFormat release to be compatible with OCaml 5.1.

We highlight notable formatting improvements below:

  1. Removal of extra breaks in constructor declarations
 type t =                               
   | Foo
   | (* Redirect (None, lib) looks up lib in the same database *)
-    Redirect of
-      db option * (Loc.t * Lib_name.t)
+    Redirect of db option * (Loc.t * Lib_name.t)
+
  1. Consistent formatting for arrow class types, and consistent indentation of the object keyword
module type S = sig                    
-  class tttttttttttt : aaaaaaaaaaaaaaaaaa:int -> bbbbbbbbbbbbbbbbbbbbb:float ->
+  class tttttttttttt :
+    aaaaaaaaaaaaaaaaaa:int ->
+    bbbbbbbbbbbbbbbbbbbbb:float ->
    cccccccccccccccccccc
end

class type ct =
  let open M in
-  object
+object
  val x : t
end

We've also fixed a few bugs. Attributes that were previously skipped are not preserved, and we fixed a crash that occured in the presence of nested modules.

Have a look at the full changelog to see the list of improvements, and don’t hesitate to share your feedback on this release on OCaml Discuss.

See full changelog

Changed

  • Compatible with OCaml 5.1.0 (#2412, @Julow) The syntax of let-bindings changed sligthly in this version.
  • Improved ocp-indent compatibility (#2428, @Julow)
  • * Removed extra break in constructor declaration with comment (#2429, @Julow)
  • * De-indent the object keyword in class types (#2425, @Julow)
  • * Consistent formatting of arrows in class types (#2422, @Julow)

Fixed

  • Fix dropped attributes on a begin-end in a match case (#2421, @Julow)
  • Fix dropped attributes on begin-end in an if-then-else branch (#2436, @gpetiot)
  • Fix non-stabilizing comments before a functor type argument (#2420, @Julow)
  • Fix crash caused by module types with nested with module (#2419, @Julow)
  • Fix ';;' formatting between doc-comments and toplevel directives (#2432, @gpetiot)