src/Pure/ML-Systems/alice.ML
author wenzelm
Sat Aug 18 21:27:52 2007 +0200 (2007-08-18)
changeset 24329 f31594168d27
parent 24290 5607b8b752bb
child 24597 cbf2c5cf335e
permissions -rw-r--r--
ML system provides get_print_depth;
wenzelm@22563
     1
(*  Title:      Pure/ML-Systems/alice.ML
wenzelm@22563
     2
    ID:         $Id$
wenzelm@22563
     3
wenzelm@22837
     4
Compatibility file for Alice 1.4.
wenzelm@23826
     5
wenzelm@23826
     6
NOTE: there is no wrapper script; may run it interactively as follows:
wenzelm@23826
     7
wenzelm@23826
     8
$ cd Isabelle/src/Pure
wenzelm@23826
     9
$ env ALICE_JIT_MODE=0 alice
wenzelm@23835
    10
- val ml_system = "alice";
wenzelm@23826
    11
- use "ML-Systems/alice.ML";
wenzelm@23826
    12
- use "ROOT.ML";
wenzelm@23826
    13
- Session.finish ();
wenzelm@22563
    14
*)
wenzelm@22563
    15
wenzelm@23965
    16
use "ML-Systems/exn.ML";
wenzelm@23965
    17
use "ML-Systems/multithreading_dummy.ML";
wenzelm@23921
    18
wenzelm@23921
    19
wenzelm@22563
    20
fun exit 0 = (OS.Process.exit OS.Process.success): unit
wenzelm@22563
    21
  | exit _ = OS.Process.exit OS.Process.failure;
wenzelm@22563
    22
wenzelm@22563
    23
wenzelm@22563
    24
(** ML system related **)
wenzelm@22563
    25
wenzelm@22563
    26
(*low-level pointer equality*)
wenzelm@22563
    27
fun pointer_eq (_: 'a, _: 'a) = false;
wenzelm@22563
    28
wenzelm@22563
    29
wenzelm@22563
    30
(* restore old-style character / string functions *)
wenzelm@22563
    31
wenzelm@22563
    32
exception Ord;
wenzelm@22563
    33
fun ord "" = raise Ord
wenzelm@22563
    34
  | ord s = Char.ord (String.sub (s, 0));
wenzelm@22563
    35
wenzelm@22575
    36
val chr = String.str o chr;
wenzelm@22575
    37
val explode = map String.str o String.explode;
wenzelm@22563
    38
val implode = String.concat;
wenzelm@22563
    39
wenzelm@22563
    40
wenzelm@22563
    41
(* Poly/ML emulation *)
wenzelm@22563
    42
wenzelm@22563
    43
fun quit () = exit 0;
wenzelm@22563
    44
wenzelm@24329
    45
fun get_print_depth () = ! Print.depth;
wenzelm@22563
    46
fun print_depth n = Print.depth := n;
wenzelm@22563
    47
wenzelm@22563
    48
wenzelm@22563
    49
(* compiler-independent timing functions *)
wenzelm@22563
    50
wenzelm@22563
    51
structure Timer =
wenzelm@22563
    52
struct
wenzelm@22563
    53
  open Timer;
wenzelm@22563
    54
  type cpu_timer = unit;
wenzelm@22563
    55
  fun startCPUTimer () = ();
wenzelm@22563
    56
  fun checkCPUTimer () = {sys = Time.zeroTime, usr = Time.zeroTime};
wenzelm@22563
    57
  fun checkGCTime () = Time.zeroTime;
wenzelm@22563
    58
end;
wenzelm@22563
    59
wenzelm@22563
    60
fun start_timing () =
wenzelm@22563
    61
  let val CPUtimer = Timer.startCPUTimer();
wenzelm@22563
    62
      val time = Timer.checkCPUTimer(CPUtimer)
wenzelm@22563
    63
  in  (CPUtimer,time)  end;
wenzelm@22563
    64
wenzelm@22563
    65
fun end_timing (CPUtimer, {sys,usr}) =
wenzelm@22563
    66
  let open Time  (*...for Time.toString, Time.+ and Time.- *)
wenzelm@22563
    67
      val {sys=sys2,usr=usr2} = Timer.checkCPUTimer(CPUtimer)
wenzelm@22563
    68
  in  "User " ^ toString (usr2-usr) ^
wenzelm@22563
    69
      "  All "^ toString (sys2-sys + usr2-usr) ^
wenzelm@22563
    70
      " secs"
wenzelm@22563
    71
      handle Time => ""
wenzelm@22563
    72
  end;
wenzelm@22563
    73
wenzelm@22563
    74
fun check_timer timer =
wenzelm@22563
    75
  let
wenzelm@22563
    76
    val {sys, usr} = Timer.checkCPUTimer timer;
wenzelm@22563
    77
    val gc = Timer.checkGCTime timer;    (* FIXME already included in usr? *)
wenzelm@22563
    78
  in (sys, usr, gc) end;
wenzelm@22563
    79
wenzelm@22563
    80
wenzelm@22563
    81
(*prompts*)
wenzelm@22563
    82
fun ml_prompts p1 p2 = ();
wenzelm@22563
    83
wenzelm@22563
    84
(*dummy implementation*)
wenzelm@22563
    85
fun profile (n: int) f x = f x;
wenzelm@22563
    86
wenzelm@22563
    87
(*dummy implementation*)
wenzelm@22563
    88
fun exception_trace f = f ();
wenzelm@22563
    89
wenzelm@22563
    90
(*dummy implementation*)
wenzelm@22563
    91
fun print x = x;
wenzelm@22563
    92
wenzelm@22563
    93
wenzelm@24290
    94
(* toplevel pretty printing (see also Pure/pure_setup.ML) *)
wenzelm@22563
    95
wenzelm@22563
    96
fun make_pp path pprint = (path, pprint);
wenzelm@22563
    97
fun install_pp (path, pp) = ();
wenzelm@22563
    98
wenzelm@22563
    99
wenzelm@22563
   100
(* ML command execution *)
wenzelm@22563
   101
wenzelm@22563
   102
fun use_text name (print, err) verbose txt = (Compiler.eval txt; ());
wenzelm@22563
   103
wenzelm@22563
   104
fun use_file _ _ name = use name;
wenzelm@22563
   105
wenzelm@22563
   106
wenzelm@22563
   107
wenzelm@22563
   108
(** interrupts **)
wenzelm@22563
   109
wenzelm@22563
   110
exception Interrupt;
wenzelm@22563
   111
wenzelm@22563
   112
fun ignore_interrupt f x = f x;
wenzelm@22563
   113
fun raise_interrupt f x = f x;
wenzelm@22563
   114
wenzelm@22563
   115
wenzelm@22563
   116
(* basis library fixes *)
wenzelm@22563
   117
wenzelm@22563
   118
structure TextIO =
wenzelm@22563
   119
struct
wenzelm@22563
   120
  open TextIO;
wenzelm@23139
   121
  fun inputLine is = TextIO.inputLine is
wenzelm@22563
   122
    handle IO.Io _ => raise Interrupt;
wenzelm@22563
   123
end;
wenzelm@22563
   124
wenzelm@22563
   125
wenzelm@22563
   126
(* bounded time execution *)
wenzelm@22563
   127
wenzelm@22563
   128
(*dummy implementation*)
wenzelm@22563
   129
fun interrupt_timeout time f x =
wenzelm@22563
   130
  f x;
wenzelm@22563
   131
wenzelm@22563
   132
wenzelm@22563
   133
wenzelm@22563
   134
(** OS related **)
wenzelm@22563
   135
wenzelm@23826
   136
(* current directory *)
wenzelm@23826
   137
wenzelm@23826
   138
val cd = OS.FileSys.chDir;
wenzelm@23826
   139
val pwd = OS.FileSys.getDir;
wenzelm@23826
   140
wenzelm@23826
   141
wenzelm@22563
   142
(* system command execution *)
wenzelm@22563
   143
wenzelm@22563
   144
(*execute Unix command which doesn't take any input from stdin and
wenzelm@22563
   145
  sends its output to stdout; could be done more easily by Unix.execute,
wenzelm@22563
   146
  but that function doesn't use the PATH*)
wenzelm@22563
   147
fun execute command =
wenzelm@22563
   148
  let
wenzelm@22563
   149
    val tmp_name = OS.FileSys.tmpName ();
wenzelm@22563
   150
    val is = (OS.Process.system (command ^ " > " ^ tmp_name); TextIO.openIn tmp_name);
wenzelm@22563
   151
    val result = TextIO.inputAll is;
wenzelm@22563
   152
  in
wenzelm@22563
   153
    TextIO.closeIn is;
wenzelm@22563
   154
    OS.FileSys.remove tmp_name;
wenzelm@22563
   155
    result
wenzelm@22563
   156
  end;
wenzelm@22563
   157
wenzelm@22563
   158
(*plain version; with return code*)
wenzelm@22563
   159
val system = OS.Process.system: string -> int;
wenzelm@22563
   160
wenzelm@22563
   161
structure OS =
wenzelm@22563
   162
struct
wenzelm@22563
   163
  open OS;
wenzelm@22563
   164
  structure FileSys =
wenzelm@22563
   165
  struct
wenzelm@22563
   166
    fun fileId name =
wenzelm@22563
   167
      (case execute ("perl -e '@_ = stat(q:" ^ name ^ ":); print $_[1]'") of
wenzelm@22563
   168
        "" => raise Fail "OS.FileSys.fileId"   (* FIXME IO.Io!? *)
wenzelm@22563
   169
      | s => (case Int.fromString s of NONE => raise Fail "OS.FileSys.fileId" | SOME i => i));
wenzelm@22563
   170
    val compare = Int.compare;
wenzelm@22563
   171
    open FileSys;
wenzelm@22563
   172
  end;
wenzelm@22563
   173
end;
wenzelm@22563
   174
wenzelm@22563
   175
wenzelm@22563
   176
(* getenv *)
wenzelm@22563
   177
wenzelm@22563
   178
fun getenv var =
wenzelm@22563
   179
  (case OS.Process.getEnv var of
wenzelm@22563
   180
    NONE => ""
wenzelm@22563
   181
  | SOME txt => txt);