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|
(**************************************************************************)
(* *)
(* OCaml *)
(* *)
(* Maxence Guesdon, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 2001 Institut National de Recherche en Informatique et *)
(* en Automatique. *)
(* *)
(* All rights reserved. This file is distributed under the terms of *)
(* the GNU Lesser General Public License version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
(** The functions to get a string from different kinds of elements (types, modules, ...). *)
module Name = Odoc_name
let () = Out_type.Ident_names.enable false
let string_of_variance t v =
if ( t.Odoc_type.ty_kind = Odoc_type.Type_abstract ||
t.Odoc_type.ty_kind = Odoc_type.Type_open ) &&
t.Odoc_type.ty_manifest = None
then
let inj =
if t.Odoc_type.ty_kind = Odoc_type.Type_abstract
&& Types.Variance.(mem Inj v)
then "!"
else ""
in
match Types.Variance.get_upper v with
| (true, false) -> inj ^ "+"
| (false, true) -> inj ^ "-"
| _ -> inj
else
""
let rec is_arrow_type t =
match Types.get_desc t with
Types.Tarrow _ -> true
| Types.Tlink t2 -> is_arrow_type t2
| Types.Ttuple _
| Types.Tconstr _
| Types.Tvar _ | Types.Tunivar _ | Types.Tobject _ | Types.Tpoly _
| Types.Tfield _ | Types.Tnil | Types.Tvariant _ | Types.Tpackage _ -> false
| Types.Tsubst _ -> assert false
let rec need_parent t =
match Types.get_desc t with
Types.Tarrow _ | Types.Ttuple _ -> true
| Types.Tlink t2 -> need_parent t2
| Types.Tconstr _
| Types.Tvar _ | Types.Tunivar _ | Types.Tobject _ | Types.Tpoly _
| Types.Tfield _ | Types.Tnil | Types.Tvariant _ | Types.Tpackage _ -> false
| Types.Tsubst _ -> assert false
let print_type_scheme ppf t =
if need_parent t then
Format.fprintf ppf "(%a)" Printtyp.shared_type_scheme t
else
Printtyp.shared_type_scheme ppf t
let print_type_param decl ppf (param,v) =
(* HACK: we print type parameters as type expressions, and amend ["'_"] to ["_"] *)
let ty = Format.asprintf "%a" Printtyp.shared_type_scheme param in
let ty = if ty = "'_" then "_" else ty in
let var = string_of_variance decl v in
if need_parent param then
Format.fprintf ppf "(%s%s)" var ty
else
Format.fprintf ppf "%s%s" var ty
let raw_string_of_type_list sep elt ppf type_list =
let pp_sep ppf () = Format.fprintf ppf "@,%s" sep in
Format.fprintf ppf "@[<hov 2>%a@]"
(Format.pp_print_list ~pp_sep elt) type_list
let string_of_type_list ?par sep type_list =
let par =
match par with
| Some b -> b
| None ->
match type_list with
[] | [_] -> false
| _ -> true
in
Format.asprintf "%s%a%s"
(if par then "(" else "")
(raw_string_of_type_list sep print_type_scheme) type_list
(if par then ")" else "")
let string_of_type_param_list t =
let par =
match t.Odoc_type.ty_parameters with
[] | [_] -> false
| _ -> true
in
Format.asprintf "%s%a%s"
(if par then "(" else "")
(raw_string_of_type_list ", " @@ print_type_param t)
t.Odoc_type.ty_parameters
(if par then ")" else "")
let string_of_type_extension_param_list te =
let par =
match te.Odoc_extension.te_type_parameters with
[] | [_] -> false
| _ -> true
in
Format.asprintf "%s%a%s"
(if par then "(" else "")
(raw_string_of_type_list ", " print_type_scheme)
te.Odoc_extension.te_type_parameters
(if par then ")" else "")
let string_of_class_type_param_list l =
let par =
match l with
[] | [_] -> false
| _ -> true
in
Format.asprintf "%s%a%s"
(if par then "[" else "")
(raw_string_of_type_list ", " print_type_scheme)
l
(if par then "]" else "")
let string_of_class_params c =
let b = Buffer.create 256 in
let rec iter = function
Types.Cty_arrow (label, t, ctype) ->
let parent = is_arrow_type t in
Printf.bprintf b "%s%s%s%s -> "
(
match label with
Asttypes.Nolabel -> ""
| s -> Asttypes.string_of_label s ^":"
)
(if parent then "(" else "")
(Odoc_print.string_of_type_expr
(if Odoc_misc.is_optional label then
Odoc_misc.remove_option t
else
t
)
)
(if parent then ")" else "");
iter ctype
| Types.Cty_signature _
| Types.Cty_constr _ -> ()
in
iter c.Odoc_class.cl_type;
Buffer.contents b
let bool_of_private = function
| Asttypes.Private -> true
| _ -> false
let field_doc_str = function
| None -> ""
| Some t -> Printf.sprintf "(* %s *)" (Odoc_misc.string_of_info t)
let string_of_record l =
let module M = Odoc_type in
let module P = Printf in
P.sprintf "{\n%s\n}" (
String.concat "\n" (
List.map (fun field ->
P.sprintf " %s%s : %s;%s"
(if field.M.rf_mutable then "mutable " else "") field.M.rf_name
(Odoc_print.string_of_type_expr field.M.rf_type)
(field_doc_str field.M.rf_text)
) l
)
)
let string_of_type t =
let module M = Odoc_type in
let module P = Printf in
let priv = bool_of_private t.M.ty_private in
let parameters_str =
String.concat " " (
List.map (fun (p, v) ->
(string_of_variance t v) ^ (Odoc_print.string_of_type_expr p)
) t.M.ty_parameters
)
in
let manifest_str =
match t.M.ty_manifest with
| None -> ""
| Some (M.Object_type fields) ->
P.sprintf "= %s<\n%s\n>\n" (if priv then "private " else "") (
String.concat "\n" (
List.map (fun field ->
P.sprintf " %s : %s;%s" field.M.of_name
(Odoc_print.string_of_type_expr field.M.of_type)
(field_doc_str field.M.of_text)
) fields
)
)
| Some (M.Other typ) ->
"= " ^ (if priv then "private " else "" ) ^
(Odoc_print.string_of_type_expr typ) ^ " "
in
let type_kind_str =
match t.M.ty_kind with
| M.Type_abstract -> ""
| M.Type_variant l ->
P.sprintf "=%s\n%s\n" (if priv then " private" else "") (
String.concat "\n" (
List.map (fun cons ->
let comment =
match cons.M.vc_text with
| None -> ""
| Some t -> P.sprintf "(* %s *)" (Odoc_misc.string_of_info t)
in
let string_of_parameters = function
| M.Cstr_tuple l ->
String.concat " * " (
List.map (fun t -> "("^Odoc_print.string_of_type_expr t^")") l
)
| M.Cstr_record l ->
string_of_record l
in
P.sprintf " | %s%s%s" cons.M.vc_name (
match cons.M.vc_args, cons.M.vc_ret with
| M.Cstr_tuple [], None -> ""
| li, None -> " of " ^ (string_of_parameters li)
| M.Cstr_tuple [], Some r -> " : " ^ Odoc_print.string_of_type_expr r
| li, Some r ->
P.sprintf " : %s -> %s" (string_of_parameters li)
(Odoc_print.string_of_type_expr r)
) comment
) l
)
)
| M.Type_open ->
"= .." (* FIXME MG: when introducing new constructors next time,
thanks to setup a minimal correct output *)
| M.Type_record l ->
P.sprintf "= %s{\n%s\n}\n" (if priv then "private " else "")
(string_of_record l)
in
P.sprintf "type %s %s %s%s%s" parameters_str (Name.simple t.M.ty_name)
manifest_str type_kind_str
(match t.M.ty_info with
| None -> ""
| Some info -> Odoc_misc.string_of_info info)
let string_of_type_extension te =
let module M = Odoc_extension in
let module T = Odoc_type in
"type "
^(String.concat ""
(List.map
(fun p -> (Odoc_print.string_of_type_expr p)^" ")
te.M.te_type_parameters
))
^te.M.te_type_name
^" += "
^(if (bool_of_private te.M.te_private) then "private " else "")
^"\n"
^(String.concat ""
(List.map
(fun x ->
" | "
^(Name.simple x.M.xt_name)
^(match x.M.xt_args, x.M.xt_ret with
| T.Cstr_tuple [], None -> ""
| T.Cstr_tuple l, None ->
" of " ^
(String.concat " * "
(List.map
(fun t -> "("^Odoc_print.string_of_type_expr t^")") l))
| T.Cstr_tuple [], Some r -> " : " ^ Odoc_print.string_of_type_expr r
| T.Cstr_tuple l, Some r ->
" : " ^
(String.concat " * "
(List.map
(fun t -> "("^Odoc_print.string_of_type_expr t^")") l))
^ " -> " ^ Odoc_print.string_of_type_expr r
| T.Cstr_record l, None ->
" of " ^ string_of_record l
| T.Cstr_record l, Some r ->
" : " ^ string_of_record l ^ " -> "
^ Odoc_print.string_of_type_expr r
)
^(match x.M.xt_alias with
None -> ""
| Some xa ->
" = "^
(match xa.M.xa_xt with
None -> xa.M.xa_name
| Some x2 -> x2.M.xt_name
)
)
^(match x.M.xt_text with
None ->
""
| Some t ->
"(* "^(Odoc_misc.string_of_info t)^" *)"
)^"\n"
)
te.M.te_constructors))
^(match te.M.te_info with
None -> ""
| Some i -> Odoc_misc.string_of_info i
)
let string_of_exception e =
let module T = Odoc_type in
let module M = Odoc_exception in
"exception "^(Name.simple e.M.ex_name)^
(match e.M.ex_args, e.M.ex_ret with
T.Cstr_tuple [], None -> ""
| T.Cstr_tuple l,None ->
" of "^
(String.concat " * "
(List.map (fun t -> "("^(Odoc_print.string_of_type_expr t)^")") l))
| T.Cstr_tuple [],Some r ->
" : "^
(Odoc_print.string_of_type_expr r)
| T.Cstr_tuple l,Some r ->
" : "^
(String.concat " * "
(List.map (fun t -> "("^(Odoc_print.string_of_type_expr t)^")") l))^
" -> "^
(Odoc_print.string_of_type_expr r)
| T.Cstr_record l, None ->
" of " ^ string_of_record l
| T.Cstr_record l, Some r ->
" : " ^ string_of_record l ^ " -> "
^ Odoc_print.string_of_type_expr r
)^
(match e.M.ex_alias with
None -> ""
| Some ea ->
" = "^
(match ea.M.ea_ex with
None -> ea.M.ea_name
| Some e2 -> e2.M.ex_name
)
)^"\n"^
(match e.M.ex_info with
None -> ""
| Some i -> Odoc_misc.string_of_info i)
let string_of_value v =
let module M = Odoc_value in
"val "^(Name.simple v.M.val_name)^" : "^
(Odoc_print.string_of_type_expr v.M.val_type)^"\n"^
(match v.M.val_info with
None -> ""
| Some i -> Odoc_misc.string_of_info i)
let string_of_attribute a =
let module M = Odoc_value in
"val "^
(if a.M.att_virtual then "virtual " else "")^
(if a.M.att_mutable then Odoc_messages.mutab^" " else "")^
(Name.simple a.M.att_value.M.val_name)^" : "^
(Odoc_print.string_of_type_expr a.M.att_value.M.val_type)^"\n"^
(match a.M.att_value.M.val_info with
None -> ""
| Some i -> Odoc_misc.string_of_info i)
let string_of_method m =
let module M = Odoc_value in
"method "^
(if m.M.met_private then Odoc_messages.privat^" " else "")^
(Name.simple m.M.met_value.M.val_name)^" : "^
(Odoc_print.string_of_type_expr m.M.met_value.M.val_type)^"\n"^
(match m.M.met_value.M.val_info with
None -> ""
| Some i -> Odoc_misc.string_of_info i)
|
