trywhy3.ml 7.77 KB
Newer Older
MARCHE Claude's avatar
MARCHE Claude committed
1

2 3 4 5 6 7
(*

  module for generating HTML elements

*)

MARCHE Claude's avatar
MARCHE Claude committed
8 9
module Html = struct

10
let d = Dom_html.document
MARCHE Claude's avatar
MARCHE Claude committed
11 12 13

let node x = (x : #Dom.node Js.t :> Dom.node Js.t)

MARCHE Claude's avatar
MARCHE Claude committed
14
let of_string s = node (d##createTextNode (Js.string s))
MARCHE Claude's avatar
MARCHE Claude committed
15

MARCHE Claude's avatar
MARCHE Claude committed
16 17 18 19
let par nl =
  let x = d##createElement (Js.string "p") in
  List.iter (Dom.appendChild x) nl;
  node x
MARCHE Claude's avatar
MARCHE Claude committed
20

MARCHE Claude's avatar
MARCHE Claude committed
21 22 23 24 25 26 27 28 29 30 31
let ul nl =
  let x = d##createElement (Js.string "ul") in
  List.iter
    (fun n ->
      let y =  d##createElement (Js.string "li") in
      List.iter (Dom.appendChild y) n;
      Dom.appendChild x (node y))
    nl;
  node x

end
MARCHE Claude's avatar
MARCHE Claude committed
32

33 34 35 36 37 38
let get_opt o =
  Js.Opt.get o (fun () -> assert false)

let log s =
  Firebug.console ## log (Js.string s)

MARCHE Claude's avatar
MARCHE Claude committed
39
let temp_file_name = "/input.mlw"
40
let why3_conf_file = "/why3.conf"
MARCHE Claude's avatar
MARCHE Claude committed
41

42
let () =
43
  Sys_js.register_file ~name:temp_file_name ~content:""
44

MARCHE Claude's avatar
MARCHE Claude committed
45
open Why3
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82
open Format

(* reads the config file *)
let config : Whyconf.config = Whyconf.read_config (Some why3_conf_file)
(* the [main] section of the config file *)
let main : Whyconf.main = Whyconf.get_main config
(* all the provers detected, from the config file *)
let provers : Whyconf.config_prover Whyconf.Mprover.t =
  Whyconf.get_provers config

(* One prover named Alt-Ergo in the config file *)
let alt_ergo : Whyconf.config_prover =
  if Whyconf.Mprover.is_empty provers then begin
    eprintf "Prover Alt-Ergo not installed or not configured@.";
    exit 0
  end else snd (Whyconf.Mprover.choose provers)

(* builds the environment from the [loadpath] *)
let env : Env.env = Env.create_env (Whyconf.loadpath main)


let alt_ergo_driver : Driver.driver =
  try
    Printexc.record_backtrace true;
    Driver.load_driver env alt_ergo.Whyconf.driver []
  with e ->
    let s = Printexc.get_backtrace () in
    eprintf "Failed to load driver for alt-ergo: %a@.%s@."
      Exn_printer.exn_printer e s;
  exit 1


let run_alt_ergo_on_task t =
  (* printing the task in a string *)
  Driver.print_task alt_ergo_driver str_formatter t;
  let text = flush_str_formatter () in
  (* TODO ! *)
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103
(* from Alt-Ergo:
  let a = Why_parser.file Why_lexer.token lb in
  let ltd, typ_env = Why_typing.file false Why_typing.empty_env a in
  let declss = Why_typing.split_goals ltd in
  SAT.start ();
  let declss = List.map (List.map fst) declss in
  let report = FE.print_status in
  let pruning =
    List.map
      (fun d ->
        if select () > 0 then Pruning.split_and_prune (select ()) d
        else [List.map (fun f -> f,true) d])
  in
  List.iter
    (List.iter
       (fun dcl ->
	 let cnf = Cnf.make dcl in
	 ignore (Queue.fold (FE.process_decl report)
		   (SAT.empty (), true, Explanation.empty) cnf)
       )) (pruning declss)
*)
104 105 106
  text

let split_trans = Trans.lookup_transform_l "split_goal_wp" env
MARCHE Claude's avatar
MARCHE Claude committed
107

108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184
let why3_prove theories =
  let theories =
    Stdlib.Mstr.fold
      (fun thname th acc ->
        let tasks = Task.split_theory th None None in
        let tasks = List.map
          (fun t ->
            let (id,expl,_) = Termcode.goal_expl_task ~root:true t in
            let expl = match expl with
              | Some s -> s
              | None -> id.Ident.id_string
            in
            let tl = Trans.apply split_trans t in
            let tasks =
              List.map
                (fun task ->
                  let (id,expl,_) = Termcode.goal_expl_task ~root:false task in
                  let expl = match expl with
                    | Some s -> s
                    | None -> id.Ident.id_string
                  in
                  let result = run_alt_ergo_on_task task in
                  let result =
                    if String.length result > 80 then
                      "..." ^ String.sub result (String.length result - 80) 80
                    else result
                  in
                  [Html.of_string (expl ^" : " ^ result)])
                tl
            in
            [Html.of_string expl; Html.ul tasks])
          tasks
        in
        [ Html.of_string ("Theory " ^ thname); Html.ul tasks]
        :: acc)
      theories []
  in
  Html.ul theories

let why3_execute (modules,_theories) =
  let mods =
    Stdlib.Mstr.fold
      (fun _k m acc ->
        let th = m.Mlw_module.mod_theory in
        let name = th.Theory.th_name.Ident.id_string in
        [Html.of_string ("Module " ^ name)] :: acc)
      modules []
  in
  Html.ul mods

(* from ../tools/why3execute.ml

  let do_exec (mid,name) =
    let m = try Mstr.find mid mm with Not_found ->
      eprintf "Module '%s' not found.@." mid;
      exit 1 in
    let ps =
      try Mlw_module.ns_find_ps m.Mlw_module.mod_export [name]
      with Not_found ->
        eprintf "Function '%s' not found in module '%s'.@." name mid;
        exit 1 in
    match Mlw_decl.find_definition m.Mlw_module.mod_known ps with
    | None ->
      eprintf "Function '%s.%s' has no definition.@." mid name;
      exit 1
    | Some d ->
      try
        printf "@[<hov 2>Execution of %s.%s ():@\n" mid name;
        Mlw_interp.eval_global_symbol env m d;
      with e when Debug.test_noflag Debug.stack_trace ->
        printf "@\n@]@.";
        raise e in
  Queue.iter do_exec opt_exec

*)

let run_why3 f lang global text =
185 186 187
  let ch = open_out temp_file_name in
  output_string ch text;
  close_out ch;
188 189
  try
    (* TODO: add a function Env.read_string or Env.read_from_lexbuf ? *)
190 191
    let theories = Env.read_file lang env temp_file_name in
    f theories
192
  with
193
(*
194 195 196 197 198
  | Loc.Located(loc,Parser.Error) ->
    let (_,l,b,e) = Loc.get loc in
    Html.par
      [Html.of_string
          (Pp.sprintf "syntax error line %d, columns %d-%d" l b e)]
199
*)
200 201
  | Loc.Located(loc,e') ->
    let (_,l,b,e) = Loc.get loc in
202 203
    ignore (Js.Unsafe.meth_call global "highlightError"
	      (Array.map Js.Unsafe.inject [| l-1; b; l-1; e |]));
204 205 206 207 208 209 210 211 212 213 214
    Html.par
      [Html.of_string
          (Pp.sprintf
             "error line %d, columns %d-%d: %a" l b e
             Exn_printer.exn_printer e')]
  | e ->
    Html.par
      [Html.of_string
          (Pp.sprintf
             "unexpected exception: %a (%s)" Exn_printer.exn_printer e
             (Printexc.to_string e))]
215 216

let add_why3_cmd buttonname f lang =
217 218 219 220 221 222
  let handler = Dom.handler
    (fun _ev ->
      log "why3 prove is running";
      let global = Js.Unsafe.global in
      let editor = Js.Unsafe.get global (Js.string "editor") in
      let code = Js.to_string (Js.Unsafe.meth_call editor "getValue" [| |]) in
223
      let answer = run_why3 f lang global code in
224 225 226 227 228 229 230
      (* remove the previous answer if any *)
      let console =
        get_opt (Dom_html.document ## getElementById (Js.string "console"))
      in
      Js.Opt.iter (console##lastChild) (Dom.removeChild console);
      (* put the new answer *)
      Dom.appendChild console answer;
231
      ignore (Js.Unsafe.meth_call editor "focus" [| |]);
232
      Js._false)
MARCHE Claude's avatar
MARCHE Claude committed
233
  in
234
  let button =
235
    get_opt (Dom_html.document ## getElementById (Js.string buttonname))
236 237
  in
  button ## onclick <- handler
MARCHE Claude's avatar
MARCHE Claude committed
238

239 240 241 242
let () =
  add_why3_cmd "prove" why3_prove Env.base_language;
  add_why3_cmd "run" why3_execute Mlw_module.mlw_language

243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265
let add_file_example buttonname file =
  let handler = Dom.handler
    (fun _ev ->
      let text = Sysutil.file_contents file in
      let global = Js.Unsafe.global in
      let editor = Js.Unsafe.get global (Js.string "editor") in
      Js.Unsafe.set global (Js.string "loadedBuffer") (Js.string text);
      let loaded = Filename.basename file in
      Js.Unsafe.set global (Js.string "loadedFilename") (Js.string loaded);
      ignore (Js.Unsafe.meth_call global "replaceWithLoaded" [| |]);
      ignore (Js.Unsafe.meth_call editor "focus" [| |]);
      Js._false)
  in
  let button =
    get_opt (Dom_html.document ## getElementById (Js.string buttonname))
  in
  button ## onclick <- handler

let () =
  add_file_example "drinkers" "/drinkers.why";
  add_file_example "simplearith" "/simplearith.why";
  add_file_example "isqrt" "/isqrt.mlw"

MARCHE Claude's avatar
MARCHE Claude committed
266 267 268 269 270 271

(*
Local Variables:
compile-command: "unset LANG; make -C ../.. src/trywhy3/trywhy3.js"
End:
*)