src/Pure/ML/ml_compiler0.ML
author wenzelm
Sat Nov 04 15:24:40 2017 +0100 (20 months ago)
changeset 67003 49850a679c2c
parent 64556 851ae0e7b09c
permissions -rw-r--r--
more robust sorted_entries;
     1 (*  Title:      Pure/ML/ml_compiler0.ML
     2     Author:     Makarius
     3 
     4 Runtime compilation and evaluation for bootstrap.
     5 Initial ML file operations.
     6 *)
     7 
     8 signature ML_COMPILER0 =
     9 sig
    10   type polyml_location = PolyML.location
    11   type context =
    12    {name_space: ML_Name_Space.T,
    13     print_depth: int option,
    14     here: int -> string -> string,
    15     print: string -> unit,
    16     error: string -> unit}
    17   val make_context: ML_Name_Space.T -> context
    18   val ML: context -> {debug: bool, file: string, line: int, verbose: bool} -> string -> unit
    19   val ML_file: context -> {debug: bool, verbose: bool} -> string -> unit
    20   val debug_option: bool option -> bool
    21   val ML_file_operations: (bool option -> string -> unit) ->
    22     {ML_file: string -> unit, ML_file_debug: string -> unit, ML_file_no_debug: string -> unit}
    23 end;
    24 
    25 structure ML_Compiler0: ML_COMPILER0 =
    26 struct
    27 
    28 type polyml_location = PolyML.location;
    29 
    30 
    31 (* global options *)
    32 
    33 val _ = PolyML.Compiler.reportUnreferencedIds := true;
    34 val _ = PolyML.Compiler.reportExhaustiveHandlers := true;
    35 val _ = PolyML.Compiler.printInAlphabeticalOrder := false;
    36 val _ = PolyML.Compiler.maxInlineSize := 80;
    37 
    38 
    39 (* context *)
    40 
    41 type context =
    42  {name_space: ML_Name_Space.T,
    43   print_depth: int option,
    44   here: int -> string -> string,
    45   print: string -> unit,
    46   error: string -> unit};
    47 
    48 fun make_context name_space : context =
    49  {name_space = name_space,
    50   print_depth = NONE,
    51   here = fn line => fn file => " (line " ^ Int.toString line ^ " of \"" ^ file ^ "\")",
    52   print = fn s => (TextIO.output (TextIO.stdOut, s ^ "\n"); TextIO.flushOut TextIO.stdOut),
    53   error = fn s => error s};
    54 
    55 
    56 (* ML file operations *)
    57 
    58 local
    59 
    60 fun drop_newline s =
    61   if String.isSuffix "\n" s then String.substring (s, 0, size s - 1)
    62   else s;
    63 
    64 fun ml_input start_line name txt =
    65   let
    66     fun input line (#"\\" :: #"<" :: #"^" :: #"h" :: #"e" :: #"r" :: #"e" :: #">" :: cs) res =
    67           let val s = "(Position.line_file_only " ^ Int.toString line ^ " \"" ^ name ^ "\")"
    68           in input line cs (s :: res) end
    69       | input line (#"@" :: #"{" :: #"m" :: #"a" :: #"k" :: #"e" :: #"_" ::
    70             #"s" :: #"t" :: #"r" :: #"i" :: #"n" :: #"g" :: #"}" :: cs) res =
    71           input line cs (ML_Pretty.make_string_fn :: res)
    72       | input line (#"\\" :: #"<" :: cs) res = input line cs ("\092\092<" :: res)
    73       | input line (#"\n" :: cs) res = input (line + 1) cs ("\n" :: res)
    74       | input line (c :: cs) res = input line cs (str c :: res)
    75       | input _ [] res = rev res;
    76   in String.concat (input start_line (String.explode txt) []) end;
    77 
    78 in
    79 
    80 fun ML {name_space, print_depth, here, print, error, ...} {line, file, verbose, debug} text =
    81   let
    82     val current_line = Unsynchronized.ref line;
    83     val in_buffer = Unsynchronized.ref (String.explode (ml_input line file text));
    84     val out_buffer = Unsynchronized.ref ([]: string list);
    85     fun output () = drop_newline (implode (rev (! out_buffer)));
    86 
    87     fun get () =
    88       (case ! in_buffer of
    89         [] => NONE
    90       | c :: cs =>
    91           (in_buffer := cs; if c = #"\n" then current_line := ! current_line + 1 else (); SOME c));
    92     fun put s = out_buffer := s :: ! out_buffer;
    93     fun put_message {message = msg1, hard, location = {startLine = message_line, ...}, context} =
    94      (put (if hard then "Error: " else "Warning: ");
    95       PolyML.prettyPrint (put, 76) msg1;
    96       (case context of NONE => () | SOME msg2 => PolyML.prettyPrint (put, 76) msg2);
    97       put ("At" ^ here (FixedInt.toInt message_line) file ^ "\n"));
    98 
    99     val parameters =
   100      [PolyML.Compiler.CPOutStream put,
   101       PolyML.Compiler.CPNameSpace name_space,
   102       PolyML.Compiler.CPErrorMessageProc put_message,
   103       PolyML.Compiler.CPLineNo (fn () => ! current_line),
   104       PolyML.Compiler.CPFileName file,
   105       PolyML.Compiler.CPPrintInAlphabeticalOrder false,
   106       PolyML.Compiler.CPDebug debug] @
   107      (case print_depth of NONE => [] | SOME d => [PolyML.Compiler.CPPrintDepth (fn () => d)]);
   108     val _ =
   109       (while not (List.null (! in_buffer)) do
   110         PolyML.compiler (get, parameters) ())
   111       handle exn =>
   112         if Exn.is_interrupt exn then Exn.reraise exn
   113         else
   114          (put ("Exception- " ^ General.exnMessage exn ^ " raised");
   115           error (output ()); Exn.reraise exn);
   116   in if verbose then print (output ()) else () end;
   117 
   118 end;
   119 
   120 fun ML_file context {verbose, debug} file =
   121   let
   122     val instream = TextIO.openIn file;
   123     val text = Exn.release (Exn.capture TextIO.inputAll instream before TextIO.closeIn instream);
   124   in ML context {line = 1, file = file, verbose = verbose, debug = debug} text end;
   125 
   126 fun ML_file_operations (f: bool option -> string -> unit) =
   127   {ML_file = f NONE, ML_file_debug = f (SOME true), ML_file_no_debug = f (SOME false)};
   128 
   129 
   130 fun debug_option NONE = OS.Process.getEnv "ISABELLE_ML_DEBUGGER" = SOME "true"
   131   | debug_option (SOME debug) = debug;
   132 
   133 end;
   134 
   135 
   136 (* initial ML_file operations *)
   137 
   138 val {ML_file, ML_file_debug, ML_file_no_debug} =
   139   let val context = ML_Compiler0.make_context ML_Name_Space.global in
   140     ML_Compiler0.ML_file_operations (fn opt_debug => fn file =>
   141       ML_Compiler0.ML_file context
   142         {verbose = true, debug = ML_Compiler0.debug_option opt_debug} file
   143       handle ERROR msg => (#print context msg; raise error "ML error"))
   144   end;
   145 
   146 
   147 (* export type-dependent functions *)
   148 
   149 if Thread_Data.is_virtual then ()
   150 else
   151   ML_Compiler0.ML
   152     (ML_Compiler0.make_context
   153       (ML_Name_Space.global_values
   154         [("prettyRepresentation", "ML_system_pretty"),
   155          ("addPrettyPrinter", "ML_system_pp"),
   156          ("addOverload", "ML_system_overload")]))
   157     {debug = false, file = "", line = 0, verbose = false}
   158     "open PolyML RunCall";
   159 
   160 ML_system_pp (fn depth => fn pretty => fn var => pretty (Synchronized.value var, depth));