signature ML_COMPILER0 = sig type polyml_location = PolyML.location type context =
{name_space: ML_Name_Space.T,
print_depth: int option,
here: int -> string -> string, print: string -> unit,
error: string -> unit} val make_context: ML_Name_Space.T -> context val ML: context -> {debug: bool, file: string, line: int, verbose: bool} -> string -> unit val ML_file: context -> {debug: bool, verbose: bool} -> string -> unit val debug_option: booloption -> bool val ML_file_operations: (booloption -> string -> unit) ->
{ML_file: string -> unit, ML_file_debug: string -> unit, ML_file_no_debug: string -> unit}
end;
structure ML_Compiler0: ML_COMPILER0 = struct
type polyml_location = PolyML.location;
(* global options *)
val _ = PolyML.Compiler.reportUnreferencedIds := true; val _ = PolyML.Compiler.reportExhaustiveHandlers := true; val _ = PolyML.Compiler.printInAlphabeticalOrder := false; val _ = PolyML.Compiler.maxInlineSize := 80;
(* context *)
type context =
{name_space: ML_Name_Space.T,
print_depth: int option,
here: int -> string -> string, print: string -> unit,
error: string -> unit};
fun make_context name_space : context =
{name_space = name_space,
print_depth = NONE,
here = fn line => fn file => " (line " ^ Int.toString line ^ " of \"" ^ file ^ "\")", print = fn s => (TextIO.output (TextIO.stdOut, s ^ "\n"); TextIO.flushOut TextIO.stdOut),
error = fn s => error s};
(* ML file operations *)
local
fun drop_newline s = ifString.isSuffix "\n" s then String.substring (s, 0, size s - 1)
else s;
fun ml_input start_line name txt = let fun input line (#"\\" :: #"<" :: #"^" :: #"h" :: #"e" :: #"r" :: #"e" :: #">" :: cs) res = letval s = "(Position.line_file_only " ^ Int.toString line ^ " \"" ^ name ^ "\")" in input line cs (s :: res) end
| input line (#"@" :: #"{" :: #"m" :: #"a" :: #"k" :: #"e" :: #"_" ::
#"s" :: #"t" :: #"r" :: #"i" :: #"n" :: #"g" :: #"}" :: cs) res =
input line cs (ML_Pretty.make_string_fn :: res)
| input line (#"\\" :: #"<" :: cs) res = input line cs ("\092\092<" :: res)
| input line (#"\n" :: cs) res = input (line + 1) cs ("\n" :: res)
| input line (c :: cs) res = input line cs (str c :: res)
| input _ [] res = rev res; inString.concat (input start_line (String.explode txt) []) end;
in
fun ML {name_space, print_depth, here, print, error, ...} {line, file, verbose, debug} text = let val current_line = Unsynchronized.ref line; val in_buffer = Unsynchronized.ref (String.explode (ml_input line file text)); val out_buffer = Unsynchronized.ref ([]: stringlist); fun output () = drop_newline (implode (rev (! out_buffer)));
fun get () =
(case ! in_buffer of
[] => NONE
| c :: cs =>
(in_buffer := cs; if c = #"\n" then current_line := ! current_line + 1 else (); SOME c)); fun put s = out_buffer := s :: ! out_buffer; fun put_message {message = msg1, hard, location = {startLine = message_line, ...}, context} =
(put (if hard then "Error: " else "Warning: ");
PolyML.prettyPrint (put, 76) msg1;
(case context of NONE => () | SOME msg2 => PolyML.prettyPrint (put, 76) msg2);
put ("At" ^ here (FixedInt.toInt message_line) file ^ "\n"));
val parameters =
[PolyML.Compiler.CPOutStream put,
PolyML.Compiler.CPNameSpace name_space,
PolyML.Compiler.CPErrorMessageProc put_message,
PolyML.Compiler.CPLineNo (fn () => ! current_line),
PolyML.Compiler.CPFileName file,
PolyML.Compiler.CPPrintInAlphabeticalOrder false,
PolyML.Compiler.CPDebug debug] @
(case print_depth of NONE => [] | SOME d => [PolyML.Compiler.CPPrintDepth (fn () => d)]); val _ =
Isabelle_Thread.try_catch
(fn () =>
(while not (List.null (! in_buffer)) do
PolyML.compiler (get, parameters) ()))
(fn exn =>
(put ("Exception- " ^ General.exnMessage exn ^ " raised");
error (output ()); Exn.reraise exn)); inif verbose then print (output ()) else () end;
end;
fun ML_file context {verbose, debug} file = Thread_Attributes.uninterruptible_body (fn run => let val instream = TextIO.openIn file; val result = Exn.capture (run TextIO.inputAll) instream; val _ = TextIO.closeIn instream; in ML context {line = 1, file = file, verbose = verbose, debug = debug} (Exn.release result) end);
fun ML_file_operations (f: booloption -> string -> unit) =
{ML_file = f NONE, ML_file_debug = f (SOME true), ML_file_no_debug = f (SOME false)};
fun debug_option NONE = OS.Process.getEnv "ISABELLE_ML_DEBUGGER" = SOME "true"
| debug_option (SOME debug) = debug;
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