ocaml/ocamldoc/odoc_parameter.ml

132 lines
3.9 KiB
OCaml

(***********************************************************************)
(* OCamldoc *)
(* *)
(* 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 Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(** Representation and manipulation of method / function / class parameters,
and module parameters.*)
let print_DEBUG s = print_string s ; print_newline ()
(** Types *)
(** Representation of a simple parameter name *)
type simple_name = {
sn_name : string ;
sn_type : Types.type_expr ;
mutable sn_text : Odoc_types.text option ;
}
(** Representation of parameter names. We need it to represent parameter names in tuples.
The value [Tuple ([], t)] stands for an anonymous parameter.*)
type param_info =
| Simple_name of simple_name
| Tuple of param_info list * Types.type_expr
(** A parameter is just a param_info.*)
type parameter = param_info
(** A module parameter is just a name and a module type.*)
type module_parameter = {
mp_name : string ;
mp_type : Types.module_type ;
}
(** Functions *)
(** acces to the name as a string. For tuples, parenthesis and commas are added. *)
let complete_name p =
let rec iter pi =
match pi with
Simple_name sn ->
sn.sn_name
| Tuple ([], _) -> (* anonymous parameter *)
"??"
| Tuple (pi_list, _) ->
"("^(String.concat "," (List.map iter pi_list))^")"
in
iter p
(** access to the complete type *)
let typ pi =
match pi with
Simple_name sn -> sn.sn_type
| Tuple (_, typ) -> typ
(** Update the text of a parameter using a function returning
the optional text associated to a parameter name.*)
let update_parameter_text f p =
let rec iter pi =
match pi with
Simple_name sn ->
sn.sn_text <- f sn.sn_name
| Tuple (l, _) ->
List.iter iter l
in
iter p
(** access to the description of a specific name.
@raise Not_found if no description is associated to the given name. *)
let desc_by_name pi name =
let rec iter acc pi =
match pi with
Simple_name sn ->
(sn.sn_name, sn.sn_text) :: acc
| Tuple (pi_list, _) ->
List.fold_left iter acc pi_list
in
let l = iter [] pi in
List.assoc name l
(** acces to the list of names ; only one for a simple parameter, or
a list for tuples. *)
let names pi =
let rec iter acc pi =
match pi with
Simple_name sn ->
sn.sn_name :: acc
| Tuple (pi_list, _) ->
List.fold_left iter acc pi_list
in
iter [] pi
(** access to the type of a specific name.
@raise Not_found if no type is associated to the given name. *)
let type_by_name pi name =
let rec iter acc pi =
match pi with
Simple_name sn ->
(sn.sn_name, sn.sn_type) :: acc
| Tuple (pi_list, _) ->
List.fold_left iter acc pi_list
in
let l = iter [] pi in
List.assoc name l
(** access to the optional description of a parameter name from an optional info structure.*)
let desc_from_info_opt info_opt s =
print_DEBUG "desc_from_info_opt";
match info_opt with
None -> None
| Some i ->
match s with
"" -> None
| _ ->
try
Some (List.assoc s i.Odoc_types.i_params)
with
Not_found ->
print_DEBUG ("desc_from_info_opt "^s^" not found in\n");
List.iter (fun (s, _) -> print_DEBUG s) i.Odoc_types.i_params;
None