author | haftmann |
Mon, 08 Feb 2010 17:12:22 +0100 | |
changeset 35045 | a77d200e6503 |
parent 32738 | 15bb09ca0378 |
child 39242 | 28d3809ff91f |
permissions | -rw-r--r-- |
31312 | 1 |
(* Title: Pure/ML-Systems/compiler_polyml-5.2.ML |
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Runtime compilation for Poly/ML 5.2 and 5.2.1. |
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*) |
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local |
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fun drop_newline s = |
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if String.isSuffix "\n" s then String.substring (s, 0, size s - 1) |
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else s; |
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in |
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fun use_text ({tune_source, name_space, str_of_pos, print, error, ...}: use_context) |
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(start_line, name) verbose txt = |
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let |
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val current_line = Unsynchronized.ref start_line; |
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val in_buffer = Unsynchronized.ref (String.explode (tune_source txt)); |
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val out_buffer = Unsynchronized.ref ([]: string list); |
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fun output () = drop_newline (implode (rev (! out_buffer))); |
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fun get () = |
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(case ! in_buffer of |
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[] => NONE |
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| c :: cs => |
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(in_buffer := cs; if c = #"\n" then current_line := ! current_line + 1 else (); SOME c)); |
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fun put s = out_buffer := s :: ! out_buffer; |
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fun message (msg, is_err, line) = |
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(if is_err then "Error: " else "Warning: ") ^ drop_newline msg ^ str_of_pos line name ^ "\n"; |
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val parameters = |
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[PolyML.Compiler.CPOutStream put, |
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PolyML.Compiler.CPLineNo (fn () => ! current_line), |
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PolyML.Compiler.CPErrorMessageProc (put o message), |
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PolyML.Compiler.CPNameSpace name_space]; |
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val _ = |
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(while not (List.null (! in_buffer)) do |
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PolyML.compiler (get, parameters) ()) |
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handle exn => |
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(put ("Exception- " ^ General.exnMessage exn ^ " raised"); |
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31480
05937d6aafb5
reraise exceptions to preserve position information;
wenzelm
parents:
31312
diff
changeset
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error (output ()); reraise exn); |
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in if verbose then print (output ()) else () end; |
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fun use_file context verbose name = |
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let |
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val instream = TextIO.openIn name; |
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val txt = Exn.release (Exn.capture TextIO.inputAll instream before TextIO.closeIn instream); |
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in use_text context (1, name) verbose txt end; |
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end; |
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