1 (* Title: Pure/ML-Systems/compiler_polyml-5.3.ML |
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2 |
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3 Runtime compilation for Poly/ML 5.3.0 and 5.4.0. |
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4 *) |
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5 |
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6 local |
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7 |
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8 fun drop_newline s = |
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9 if String.isSuffix "\n" s then String.substring (s, 0, size s - 1) |
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10 else s; |
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11 |
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12 in |
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13 |
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14 fun use_text ({tune_source, name_space, str_of_pos, print, error, ...}: use_context) |
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15 (start_line, name) verbose txt = |
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16 let |
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17 val line = Unsynchronized.ref start_line; |
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18 val in_buffer = Unsynchronized.ref (String.explode (tune_source txt)); |
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19 val out_buffer = Unsynchronized.ref ([]: string list); |
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20 fun output () = drop_newline (implode (rev (! out_buffer))); |
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21 |
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22 fun get () = |
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23 (case ! in_buffer of |
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24 [] => NONE |
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25 | c :: cs => (in_buffer := cs; if c = #"\n" then line := ! line + 1 else (); SOME c)); |
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26 fun put s = out_buffer := s :: ! out_buffer; |
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27 fun put_message {message = msg1, hard, location = {startLine = line, ...}, context} = |
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28 (put (if hard then "Error: " else "Warning: "); |
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29 PolyML.prettyPrint (put, 76) msg1; |
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30 (case context of NONE => () | SOME msg2 => PolyML.prettyPrint (put, 76) msg2); |
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31 put ("At" ^ str_of_pos line name ^ "\n")); |
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32 |
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33 val parameters = |
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34 [PolyML.Compiler.CPOutStream put, |
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35 PolyML.Compiler.CPNameSpace name_space, |
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36 PolyML.Compiler.CPErrorMessageProc put_message, |
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37 PolyML.Compiler.CPLineNo (fn () => ! line), |
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38 PolyML.Compiler.CPFileName name, |
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39 PolyML.Compiler.CPPrintInAlphabeticalOrder false]; |
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40 val _ = |
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41 (while not (List.null (! in_buffer)) do |
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42 PolyML.compiler (get, parameters) ()) |
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43 handle exn => |
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44 if Exn.is_interrupt exn then reraise exn |
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45 else |
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46 (put ("Exception- " ^ General.exnMessage exn ^ " raised"); |
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47 error (output ()); reraise exn); |
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48 in if verbose then print (output ()) else () end; |
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49 |
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50 fun use_file context verbose name = |
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51 let |
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52 val instream = TextIO.openIn name; |
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53 val txt = Exn.release (Exn.capture TextIO.inputAll instream before TextIO.closeIn instream); |
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54 in use_text context (1, name) verbose txt end; |
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55 |
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56 end; |
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57 |
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