feat: support OCaml 5.2 (#2734)

* feat: support OCaml 5.2

* chore: add changelog entry

CHANGES.md

@@ -4,6 +4,7 @@
   [#2723](https://github.com/reasonml/reason/pull/2723))
 - Print wrapped type constraint on record patterns (@anmonteiro,
   [#2725](https://github.com/reasonml/reason/pull/2725))
+- Support OCaml 5.2 (@anmonteiro, [#2734](https://github.com/reasonml/reason/pull/2734))
 
 ## 3.10.0
 

src/reason-parser-tests/testOprint.cppo.ml

@@ -46,7 +46,14 @@ let main () =
 #else
   let (typedtree, _) =
 #endif
-    Typemod.type_implementation modulename modulename modulename env ast in
+    Typemod.type_implementation
+#if OCAML_VERSION >= (5,2,0)
+      (Unit_info.make ~source_file:modulename modulename)
+#else
+      modulename modulename modulename
+#endif
+      env ast
+  in
   let tree = Printtyp.tree_of_signature typedtree.Typedtree.str_type in
   let phrase = (Ast.Outcometree.Ophr_signature
     (List.map (fun item -> (ConvertBack.copy_out_sig_item item, None)) tree)

src/reason-parser/dune

@@ -7,6 +7,7 @@
  (targets ocaml_util.ml)
  (deps
   ../generate/select.exe
+  ocaml_util.ml-5.2
   ocaml_util.ml-5.1
   ocaml_util.ml-5.0
   ocaml_util.ml-5.00
@@ -25,6 +26,7 @@
    %{targets}
    (run
     ../generate/select.exe
+    ocaml_util.ml-5.2
     ocaml_util.ml-5.1
     ocaml_util.ml-5.0
     ocaml_util.ml-5.00

src/reason-parser/ocaml_util.ml-5.2

@@ -0,0 +1,11 @@
+let warn_latin1 lexbuf =
+  Location.deprecated (Location.curr lexbuf) "ISO-Latin1 characters in identifiers"
+;;
+
+let print_loc ppf loc =
+  Location.print_loc ppf loc
+
+
+let print_error loc f ppf x =
+  let error = Location.error_of_printer ~loc f x in
+  Location.print_report ppf error

src/vendored-omp/src/ast_52.ml

@@ -0,0 +1,201 @@
+module Asttypes = struct
+  type constant (*IF_CURRENT = Asttypes.constant *) =
+      Const_int of int
+    | Const_char of char
+    | Const_string of string * Location.t * string option
+    | Const_float of string
+    | Const_int32 of int32
+    | Const_int64 of int64
+    | Const_nativeint of nativeint
+
+  type rec_flag (*IF_CURRENT = Asttypes.rec_flag *) = Nonrecursive | Recursive
+
+  type direction_flag (*IF_CURRENT = Asttypes.direction_flag *) = Upto | Downto
+
+  (* Order matters, used in polymorphic comparison *)
+  type private_flag (*IF_CURRENT = Asttypes.private_flag *) = Private | Public
+
+  type mutable_flag (*IF_CURRENT = Asttypes.mutable_flag *) = Immutable | Mutable
+
+  type virtual_flag (*IF_CURRENT = Asttypes.virtual_flag *) = Virtual | Concrete
+
+  type override_flag (*IF_CURRENT = Asttypes.override_flag *) = Override | Fresh
+
+  type closed_flag (*IF_CURRENT = Asttypes.closed_flag *) = Closed | Open
+
+  type label = string
+
+  type arg_label (*IF_CURRENT = Asttypes.arg_label *) =
+      Nolabel
+    | Labelled of string (** [label:T -> ...] *)
+    | Optional of string (** [?label:T -> ...] *)
+
+  type 'a loc = 'a Location.loc = {
+    txt : 'a;
+    loc : Location.t;
+  }
+
+  type variance (*IF_CURRENT = Asttypes.variance *) =
+    | Covariant
+    | Contravariant
+    | NoVariance
+
+  type injectivity (*IF_CURRENT = Asttypes.injectivity *) =
+    | Injective
+    | NoInjectivity
+end
+
+module Type_immediacy = struct
+  type t (*IF_CURRENT = Type_immediacy.t *) =
+    | Unknown
+    | Always
+    | Always_on_64bits
+end
+
+module Outcometree = struct
+  (* Module [Outcometree]: results displayed by the toplevel *)
+
+  (* These types represent messages that the toplevel displays as normal
+     results or errors. The real displaying is customisable using the hooks:
+        [Toploop.print_out_value]
+        [Toploop.print_out_type]
+        [Toploop.print_out_sig_item]
+        [Toploop.print_out_phrase] *)
+
+  (** An [out_name] is a string representation of an identifier which can be
+      rewritten on the fly to avoid name collisions *)
+  type out_name (*IF_CURRENT = Outcometree.out_name *) = { mutable printed_name: string }
+
+  type out_ident (*IF_CURRENT = Outcometree.out_ident *) =
+    | Oide_apply of out_ident * out_ident
+    | Oide_dot of out_ident * string
+    | Oide_ident of out_name
+
+  type out_string (*IF_CURRENT = Outcometree.out_string *) =
+    | Ostr_string
+    | Ostr_bytes
+
+  type out_attribute (*IF_CURRENT = Outcometree.out_attribute *) =
+    { oattr_name: string }
+
+  type out_value (*IF_CURRENT = Outcometree.out_value *) =
+    | Oval_array of out_value list
+    | Oval_char of char
+    | Oval_constr of out_ident * out_value list
+    | Oval_ellipsis
+    | Oval_float of float
+    | Oval_int of int
+    | Oval_int32 of int32
+    | Oval_int64 of int64
+    | Oval_nativeint of nativeint
+    | Oval_list of out_value list
+    | Oval_printer of (Format.formatter -> unit)
+    | Oval_record of (out_ident * out_value) list
+    | Oval_string of string * int * out_string (* string, size-to-print, kind *)
+    | Oval_stuff of string
+    | Oval_tuple of out_value list
+    | Oval_variant of string * out_value option
+    | Oval_lazy of out_value
+
+  type out_type_param (*IF_CURRENT = Outcometree.out_type_param *) = {
+      ot_non_gen: bool;
+      ot_name: string;
+      ot_variance: Asttypes.variance * Asttypes.injectivity
+  }
+
+  type out_type (*IF_CURRENT = Outcometree.out_type *) =
+    | Otyp_abstract
+    | Otyp_open
+    | Otyp_alias of {non_gen:bool; aliased:out_type; alias:string}
+    | Otyp_arrow of Asttypes.arg_label * out_type * out_type
+    | Otyp_class of out_ident * out_type list
+    | Otyp_constr of out_ident * out_type list
+    | Otyp_manifest of out_type * out_type
+    | Otyp_object of { fields: (string * out_type) list; open_row:bool}
+    | Otyp_record of (string * bool * out_type) list
+    | Otyp_stuff of string
+    | Otyp_sum of out_constructor list
+    | Otyp_tuple of out_type list
+    | Otyp_var of bool * string
+    | Otyp_variant of out_variant * bool * (string list) option
+    | Otyp_poly of string list * out_type
+    | Otyp_module of out_ident * (string * out_type) list
+    | Otyp_attribute of out_type * out_attribute
+
+  and out_constructor (*IF_CURRENT = Outcometree.out_constructor *) = {
+    ocstr_name: string;
+    ocstr_args: out_type list;
+    ocstr_return_type: out_type option;
+  }
+
+  and out_variant (*IF_CURRENT = Outcometree.out_variant *) =
+    | Ovar_fields of (string * bool * out_type list) list
+    | Ovar_typ of out_type
+
+  type out_class_type (*IF_CURRENT = Outcometree.out_class_type *) =
+    | Octy_constr of out_ident * out_type list
+    | Octy_arrow of Asttypes.arg_label * out_type * out_class_type
+    | Octy_signature of out_type option * out_class_sig_item list
+  and out_class_sig_item (*IF_CURRENT = Outcometree.out_class_sig_item *) =
+    | Ocsg_constraint of out_type * out_type
+    | Ocsg_method of string * bool * bool * out_type
+    | Ocsg_value of string * bool * bool * out_type
+
+  type out_module_type (*IF_CURRENT = Outcometree.out_module_type *) =
+    | Omty_abstract
+    | Omty_functor of (string option * out_module_type) option * out_module_type
+    | Omty_ident of out_ident
+    | Omty_signature of out_sig_item list
+    | Omty_alias of out_ident
+  and out_sig_item (*IF_CURRENT = Outcometree.out_sig_item *) =
+    | Osig_class of
+        bool * string * out_type_param list * out_class_type *
+          out_rec_status
+    | Osig_class_type of
+        bool * string * out_type_param list * out_class_type *
+          out_rec_status
+    | Osig_typext of out_extension_constructor * out_ext_status
+    | Osig_modtype of string * out_module_type
+    | Osig_module of string * out_module_type * out_rec_status
+    | Osig_type of out_type_decl * out_rec_status
+    | Osig_value of out_val_decl
+    | Osig_ellipsis
+  and out_type_decl (*IF_CURRENT = Outcometree.out_type_decl *) =
+    { otype_name: string;
+      otype_params: out_type_param list;
+      otype_type: out_type;
+      otype_private: Asttypes.private_flag;
+      otype_immediate: Type_immediacy.t;
+      otype_unboxed: bool;
+      otype_cstrs: (out_type * out_type) list }
+  and out_extension_constructor (*IF_CURRENT = Outcometree.out_extension_constructor *) =
+    { oext_name: string;
+      oext_type_name: string;
+      oext_type_params: string list;
+      oext_args: out_type list;
+      oext_ret_type: out_type option;
+      oext_private: Asttypes.private_flag }
+  and out_type_extension (*IF_CURRENT = Outcometree.out_type_extension *) =
+    { otyext_name: string;
+      otyext_params: string list;
+      otyext_constructors: out_constructor list;
+      otyext_private: Asttypes.private_flag }
+  and out_val_decl (*IF_CURRENT = Outcometree.out_val_decl *) =
+    { oval_name: string;
+      oval_type: out_type;
+      oval_prims: string list;
+      oval_attributes: out_attribute list }
+  and out_rec_status (*IF_CURRENT = Outcometree.out_rec_status *) =
+    | Orec_not
+    | Orec_first
+    | Orec_next
+  and out_ext_status (*IF_CURRENT = Outcometree.out_ext_status *) =
+    | Oext_first
+    | Oext_next
+    | Oext_exception
+
+  type out_phrase (*IF_CURRENT = Outcometree.out_phrase *) =
+    | Ophr_eval of out_value * out_type
+    | Ophr_signature of (out_sig_item * out_value option) list
+    | Ophr_exception of (exn * out_value)
+end

src/vendored-omp/src/cinaps_helpers

@@ -21,22 +21,10 @@ let supported_versions = [
   ("414", "4.14");
   ("5.0", "5.0");
   ("5.1", "5.1");
+  ("5.2", "5.2");
 ]
 
 let qualified_types = [
-  "Parsetree",
-  [ "structure"
-  ; "signature"
-  ; "toplevel_phrase"
-  ; "core_type"
-  ; "expression"
-  ; "pattern"
-  ; "case"
-  ; "type_declaration"
-  ; "type_extension"
-  ; "extension_constructor"
-  ];
-
   "Outcometree",
   [ "out_value"
   ; "out_type"
@@ -46,10 +34,6 @@ let qualified_types = [
   ; "out_type_extension"
   ; "out_phrase"
   ];
-
-  "Ast_mapper",
-  [ "mapper"
-  ];
 ]
 
 let all_types = List.concat (List.map ~f:snd qualified_types)

src/vendored-omp/src/compiler-functions/ge_52.ml

@@ -0,0 +1,28 @@
+let error_of_exn exn =
+  match Location.error_of_exn exn with
+  | Some (`Ok exn) -> Some exn
+  | Some `Already_displayed -> None
+  | None -> None
+
+let get_load_paths () =
+  Load_path.get_paths ()
+
+let load_path_init l =
+  let auto_include find_in_dir fn =
+    if !Clflags.no_std_include then
+      raise Not_found
+    else
+      let alert = Location.auto_include_alert in
+      Load_path.auto_include_otherlibs alert find_in_dir fn
+  in
+  Load_path.init ~auto_include ~visible:l ~hidden:[]
+
+let get_unboxed_types () =
+  !Clflags.unboxed_types
+
+let set_unboxed_types b =
+  Clflags.unboxed_types := b
+
+let may_map = Option.map
+
+let bad_docstring t = Warnings.Unexpected_docstring t

src/vendored-omp/src/config/gen.ml

@@ -25,6 +25,7 @@ let () =
      | (4, 14) -> "414"
      | (5, 0) -> "500"
      | (5, 1) -> "51"
+     | (5, 2) -> "52"
      | _ ->
        Printf.eprintf "Unknown OCaml version %s\n" ocaml_version_str;
        exit 1);
@@ -39,6 +40,8 @@ let () =
        "ge_410_and_lt_412.ml"
      else if ocaml_version < (5, 00) then
       "ge_412.ml"
-     else
+     else if ocaml_version < (5, 2) then
        "ge_50.ml"
+     else
+       "ge_52.ml"
      )

src/vendored-omp/src/migrate_parsetree_51_52.ml

@@ -0,0 +1,2 @@
+
+include Migrate_parsetree_51_52_migrate