Inlay hints disappear unexpectedly

[ddickstein]

Inlay hints appear in this case:

let f =
  let y = 0 in
  y
;;

(the y is annotated with : int)

But they do not appear in this case:

let f () =
  let y = 0 in
  y
;;

[voodoos]

Thanks for the report. This one might have been fixed already as part of #1515

@xvw can you confirm ?

[rabiescow]

I had this issue too, I rebuilt ocaml-lsp-server from main and it worked perfectly again.

You will have to pin merlin and merlin-lib aswell:

opam pin add merlin https://github.com/ocaml/merlin.git#main
opam pin add merlin-lib https://github.com/ocaml/merlin.git#main
opam pin add ocaml-lsp-server https://github.com/ocaml/ocaml-lsp.git#master

There are now additional parameters to the ocamllsp that you can pass from your lsp config. Here is mine:

lsp.ocamllsp.setup({
    capabilities = capabilities,
    on_attach = on_attach,
    cmd = {"ocamllsp"},
    filetypes = {
        "ocaml", "ocaml.menhir", "ocaml.interface", "ocaml.ocamllex",
        "dune"
    },
    root_dir = lsp.util.root_pattern("*.opam", "esy.json",
                                             "package.json", ".git",
                                             "dune-project", "dune-workspace"),
    settings = {
        extendedHover = {enable = true},
        standardHover = {enable = true},
        codelens = {enable = true},
        duneDiagnostics = {enable = true},
        inlayHints = {
            hintPatternVariables = true,
            hintLetBindings = true,
            hintFunctionParams = true
        },
        syntaxDocumentation = {enable = true},
        merlinJumpCodeActions = {enable = true}
    }
})

Hope this helps!

[voodoos]

Thanks for testing @rabiescow !

We will probably cut a release with these fixes early in June :-)