113 lines
4.1 KiB
OCaml
113 lines
4.1 KiB
OCaml
(*************************************************************************)
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(* *)
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(* Objective Caml LablTk library *)
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(* *)
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(* Francois Rouaix, Francois Pessaux and Jun Furuse *)
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(* projet Cristal, INRIA Rocquencourt *)
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(* Jacques Garrigue, Kyoto University RIMS *)
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(* *)
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(* Copyright 1999 Institut National de Recherche en Informatique et *)
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(* en Automatique and Kyoto University. All rights reserved. *)
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(* This file is distributed under the terms of the GNU Library *)
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(* General Public License. *)
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(* *)
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(*************************************************************************)
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(* $Id$ *)
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(* Write .mli for widgets *)
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open Tables
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open Compile
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let write_create_p ~w wname =
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w "val create :\n ?name:string ->\n";
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begin
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try
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let option = Hashtbl.find types_table "options" in
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let classdefs = List.assoc wname option.subtypes in
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let tklabels = List.map ~f:gettklabel classdefs in
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let l = List.map classdefs ~f:
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begin fun fc ->
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begin let p = gettklabel fc in
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if count ~item:p tklabels > 1 then small fc.var_name else p
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end,
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fc.template
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end in
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w (String.concat ~sep:" ->\n"
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(List.map l ~f:
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begin fun (s, t) ->
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" ?" ^ s ^ ":"
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^(ppMLtype
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(match types_of_template t with
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| [t] -> labeloff t ~at:"write_create_p"
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| [] -> fatal_error "multiple"
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| l -> Product (List.map ~f:(labeloff ~at:"write_create_p") l)))
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end))
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with Not_found -> fatal_error "in write_create_p"
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end;
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w (" ->\n 'a widget -> " ^ wname ^ " widget\n");
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w " (* [create p options ?name] creates a new widget with\n";
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w " parent p and new patch component name.\n";
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w " Options are restricted to the widget class subset,\n";
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w " and checked dynamically. *)\n"
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(* Unsafe: write special comment *)
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let write_function_type ~w def =
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if not def.safe then w "(* unsafe *)\n";
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w "val "; w def.ml_name; w " : ";
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let us, ls, os =
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let tys = types_of_template def.template in
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let rec replace_args ~u ~l ~o = function
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[] -> u, l, o
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| (_, List(Subtype _) as x)::ls ->
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replace_args ~u ~l ~o:(x::o) ls
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| ("", _ as x)::ls ->
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replace_args ~u:(x::u) ~l ~o ls
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| (p, _ as x)::ls when p.[0] = '?' ->
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replace_args ~u ~l ~o:(x::o) ls
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| x::ls ->
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replace_args ~u ~l:(x::l) ~o ls
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in
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replace_args ~u:[] ~l:[] ~o:[] (List.rev tys)
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in
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let counter = ref 0 in
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let params =
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if os = [] then us @ ls else ls @ os @ us in
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List.iter params ~f:
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begin fun (l, t) ->
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if l <> "" then w (l ^ ":");
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w (ppMLtype t ~counter);
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w " -> "
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end;
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if (os <> [] || ls = []) && us = [] then w "unit -> ";
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w (ppMLtype ~any:true ~return:true def.result); (* RETURN TYPE !!! *)
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w " \n";
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(* w "(* tk invocation: "; w (doc_of_template def.template); w " *)"; *)
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if def.safe then w "\n\n"
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else w "\n(* /unsafe *)\n\n"
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let write_external_type ~w def =
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match def.template with
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| StringArg fname ->
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begin try
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let realname = find_in_path !search_path (fname ^ ".mli") in
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let ic = open_in_bin realname in
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if not def.safe then w "(* unsafe *)\n";
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begin try
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while true do
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w (input_line ic);
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w "\n"
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done
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with
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| End_of_file ->
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close_in ic;
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if def.safe then w "\n\n"
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else w "\n(* /unsafe *)\n\n"
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end
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with
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| Not_found ->
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raise (Compiler_Error ("can't find external file: " ^ fname))
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end
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| _ -> raise (Compiler_Error "invalid external definition")
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