31312
|
1 |
(* Title: Pure/ML-Systems/compiler_polyml-5.2.ML
|
|
2 |
|
|
3 |
Runtime compilation for Poly/ML 5.2 and 5.2.1.
|
|
4 |
*)
|
|
5 |
|
|
6 |
local
|
|
7 |
|
|
8 |
fun drop_newline s =
|
|
9 |
if String.isSuffix "\n" s then String.substring (s, 0, size s - 1)
|
|
10 |
else s;
|
|
11 |
|
|
12 |
in
|
|
13 |
|
|
14 |
fun use_text ({tune_source, name_space, str_of_pos, print, error, ...}: use_context)
|
|
15 |
(start_line, name) verbose txt =
|
|
16 |
let
|
|
17 |
val current_line = ref start_line;
|
|
18 |
val in_buffer = ref (String.explode (tune_source txt));
|
|
19 |
val out_buffer = ref ([]: string list);
|
|
20 |
fun output () = drop_newline (implode (rev (! out_buffer)));
|
|
21 |
|
|
22 |
fun get () =
|
|
23 |
(case ! in_buffer of
|
|
24 |
[] => NONE
|
|
25 |
| c :: cs =>
|
|
26 |
(in_buffer := cs; if c = #"\n" then current_line := ! current_line + 1 else (); SOME c));
|
|
27 |
fun put s = out_buffer := s :: ! out_buffer;
|
|
28 |
fun message (msg, is_err, line) =
|
|
29 |
(if is_err then "Error: " else "Warning: ") ^ drop_newline msg ^ str_of_pos line name ^ "\n";
|
|
30 |
|
|
31 |
val parameters =
|
|
32 |
[PolyML.Compiler.CPOutStream put,
|
|
33 |
PolyML.Compiler.CPLineNo (fn () => ! current_line),
|
|
34 |
PolyML.Compiler.CPErrorMessageProc (put o message),
|
|
35 |
PolyML.Compiler.CPNameSpace name_space];
|
|
36 |
val _ =
|
|
37 |
(while not (List.null (! in_buffer)) do
|
|
38 |
PolyML.compiler (get, parameters) ())
|
|
39 |
handle exn =>
|
|
40 |
(put ("Exception- " ^ General.exnMessage exn ^ " raised");
|
|
41 |
error (output ()); raise exn);
|
|
42 |
in if verbose then print (output ()) else () end;
|
|
43 |
|
|
44 |
fun use_file context verbose name =
|
|
45 |
let
|
|
46 |
val instream = TextIO.openIn name;
|
|
47 |
val txt = Exn.release (Exn.capture TextIO.inputAll instream before TextIO.closeIn instream);
|
|
48 |
in use_text context (1, name) verbose txt end;
|
|
49 |
|
|
50 |
end;
|
|
51 |
|