Error: Unresolved internal primitive: %caml_js_opt_meth_call

[Armael]

How to reproduce:

opam install gen_js_api
git clone https://github.com/Armael/gen_js_api_helloworld
cd gen_js_api_helloworld
make

The jsoo invocation fails with:

js_of_ocaml --pretty -o test.js +gen_js_api/ojs_runtime.js test.byte
js_of_ocaml: Error: Unresolved internal primitive: %caml_js_opt_meth_call
make: *** [Makefile:7: all] Error 1

[hhugo]

Thanks for the report, will look at this later this week

[hhugo]

What versions ? Ocaml ? Js_of_ocaml ?

[Armael]

OCaml 4.04.0, js_of_ocaml 2.8.4. I couldn't figure how to pin the git version of jsoo.

[hhugo]

partially solved by 936feb8.
I've updated the compiler to be more robust. However the code generated by gen_js_api is not doing what you expect, see bellow.

let (foo : int -> unit) =
  fun x1  -> ignore (Ojs.call (Ojs.int_to_js x1) "foo" [||]) 

I would suggest to reopen your issue on gen_js_api.

[hhugo]

I think you want

val foo : int -> unit
[@@js.global]

[Armael]

Oh, thanks for the patch & the debugging. I'll reopen the issue on gen_js_api.