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1 (* Copyright (c) 2008, Adam Chlipala
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2 * All rights reserved.
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3 *
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4 * Redistribution and use in source and binary forms, with or without
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5 * modification, are permitted provided that the following conditions are met:
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6 *
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7 * - Redistributions of source code must retain the above copyright notice,
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8 * this list of conditions and the following disclaimer.
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9 * - Redistributions in binary form must reproduce the above copyright notice,
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10 * this list of conditions and the following disclaimer in the documentation
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11 * and/or other materials provided with the distribution.
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12 * - The names of contributors may not be used to endorse or promote products
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13 * derived from this software without specific prior written permission.
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14 *
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15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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25 * POSSIBILITY OF SUCH DAMAGE.
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26 *)
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27
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28 (* Laconic/Web language parser *)
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29
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30 structure Compiler :> COMPILER = struct
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31
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32 structure LacwebLrVals = LacwebLrValsFn(structure Token = LrParser.Token)
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33 structure Lex = LacwebLexFn(structure Tokens = LacwebLrVals.Tokens)
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34 structure LacwebP = Join(structure ParserData = LacwebLrVals.ParserData
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35 structure Lex = Lex
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36 structure LrParser = LrParser)
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37
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38 (* The main parsing routine *)
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39 fun parse filename =
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40 let
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41 val () = (ErrorMsg.resetErrors ();
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42 ErrorMsg.resetPositioning filename)
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43 val file = TextIO.openIn filename
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44 fun get _ = TextIO.input file
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45 fun parseerror (s, p1, p2) = ErrorMsg.errorAt' (p1, p2) s
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46 val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
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47 val (absyn, _) = LacwebP.parse (30, lexer, parseerror, ())
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48 in
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49 TextIO.closeIn file;
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50 if ErrorMsg.anyErrors () then
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51 NONE
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52 else
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53 SOME absyn
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54 end
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55 handle LrParser.ParseError => NONE
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56
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57 fun elaborate env filename =
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58 case parse filename of
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59 NONE => NONE
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60 | SOME file =>
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61 let
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62 val out = Elaborate.elabFile env file
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63 in
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64 if ErrorMsg.anyErrors () then
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65 NONE
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66 else
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67 SOME out
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68 end
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69
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70 fun corify eenv cenv filename =
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71 case elaborate eenv filename of
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72 NONE => NONE
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73 | SOME (_, file) => SOME (Corify.corify file)
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74
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75 fun reduce eenv cenv filename =
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76 case corify eenv cenv filename of
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77 NONE => NONE
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78 | SOME file => SOME (Reduce.reduce file)
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79
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80 fun testParse filename =
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81 case parse filename of
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82 NONE => print "Failed\n"
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83 | SOME file =>
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84 (Print.print (SourcePrint.p_file file);
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85 print "\n")
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86
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87 fun testElaborate filename =
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88 (case elaborate ElabEnv.basis filename of
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89 NONE => print "Failed\n"
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90 | SOME (_, file) =>
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91 (Print.print (ElabPrint.p_file ElabEnv.basis file);
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92 print "\n"))
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93 handle ElabEnv.UnboundNamed n =>
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94 print ("Unbound named " ^ Int.toString n ^ "\n")
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95
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96 fun testCorify filename =
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97 (case corify ElabEnv.basis CoreEnv.basis filename of
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98 NONE => print "Failed\n"
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99 | SOME file =>
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100 (Print.print (CorePrint.p_file CoreEnv.basis file);
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101 print "\n"))
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102 handle CoreEnv.UnboundNamed n =>
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103 print ("Unbound named " ^ Int.toString n ^ "\n")
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104
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105 fun testReduce filename =
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106 (case reduce ElabEnv.basis CoreEnv.basis filename of
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107 NONE => print "Failed\n"
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108 | SOME file =>
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109 (Print.print (CorePrint.p_file CoreEnv.basis file);
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110 print "\n"))
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111 handle CoreEnv.UnboundNamed n =>
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112 print ("Unbound named " ^ Int.toString n ^ "\n")
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113
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114 end
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