示例#1
0
    @java.lang.Override
    public ASTNode visit(KApp kapp, Void _)  {
        if (kapp.getLabel() instanceof Token) {
            Token node = (Token) kapp.getLabel();

            /* this code needs to be refactored; this transformer is backend dependent
            so whenever somebody refactors the backends should split this transformer
            for each backend.
             */
            if (kompileOptions.experimental.legacyKast) {
                if (context.variableTokenSorts.contains(node.tokenSort())) {
                    String sort = KSorts.K;
                    String name = node.value();
                    int index = node.value().lastIndexOf(":");
                    if (index > 0) {
                        sort = node.value().substring(index + 1);
                        name = node.value().substring(0, index);
                    }

                    if (Sort.of("#" + sort).isDataSort()) {
                        return KApp.of(KLabelConstant.of(AddSymbolicK.symbolicConstructor(sort)), Token.kAppOf(Sort.BUILTIN_ID, name));
                    } else {
                        return KApp.of(KLabelConstant.of(AddSymbolicK.symbolicConstructor(KSorts.K)), Token.kAppOf(Sort.BUILTIN_ID, node.value()));
                    }
                }
            }

            if (context.variableTokenSorts.contains(node.tokenSort()))
                return new org.kframework.kil.Variable(node.value(), node.tokenSort());
        }
        return super.visit(kapp, _);    //To change body of overridden methods use File | Settings | File Templates.
    }
示例#2
0
  public static StringBuilder getSdfForDefinition(Definition def, Context context) {

    StringBuilder sdf = new StringBuilder("module Integration\n\n");
    sdf.append("imports Common\n");
    sdf.append("imports KTechnique\n");
    sdf.append("imports KBuiltinsBasic\n\n");
    sdf.append("exports\n\n");
    sdf.append("context-free syntax\n");

    DefinitionSDFVisitor psdfv = new DefinitionSDFVisitor(true, context);
    CollectTerminalsVisitor terminals = new CollectTerminalsVisitor();
    psdfv.visitNode(def);
    terminals.visitNode(def);

    for (Production p1 : psdfv.listProds)
      for (Production p2 : psdfv.listProds)
        if (p1 != p2) {
          Sort srt1 = ((UserList) p1.getItems().get(0)).getSort();
          Sort srt2 = ((UserList) p2.getItems().get(0)).getSort();
          if (psdfv.subsorts.contains(new Subsort(srt1, srt2)))
            psdfv.subsorts.add(new Subsort(p1.getSort(), p2.getSort()));
        }

    sdf.append(psdfv.sdf);

    sdf.append("%% subsorts 1\n");
    sdf.append("context-free priorities\n{\n");
    // 1
    // print Sort -> K > A -> B > K -> Sort
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    " + StringUtil.escapeSort(s) + " -> K");
        // sdf.append(" {cons(\"K12" + StringUtil.escapeSort(s) + "\")}");
        sdf.append("\n");
      }
    }
    sdf.append("} .> {\n");
    for (Subsort subs : psdfv.subsorts) {
      Sort s1 = subs.getSmallSort();
      Sort s2 = subs.getBigSort();
      if (!s1.isBaseSort() && !s2.isBaseSort()) {
        sdf.append("    " + StringUtil.escapeSort(s1) + " -> " + StringUtil.escapeSort(s2));
        // sdf.append(" {cons(\"" + StringUtil.escapeSort(s2) + "12" + StringUtil.escapeSort(s1) +
        // "\")}");
        sdf.append("\n");
      }
    }
    sdf.append("} .> {\n");
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    K -> " + StringUtil.escapeSort(s));
        // sdf.append(" {cons(\"" + StringUtil.escapeSort(s) + "12K\")}");
        sdf.append("\n");
      }
    }
    sdf.append("}\n\n");

    sdf.append("%% subsorts 1a\n");
    sdf.append("context-free priorities\n{\n");
    // 1
    // print Sort -> K > A -> B > K -> Sort
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    " + StringUtil.escapeSort(s) + " -> K");
        // sdf.append(" {cons(\"K12" + StringUtil.escapeSort(s) + "\")}");
        sdf.append("\n");
      }
    }
    sdf.append("} .> {\n");
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    K -> " + StringUtil.escapeSort(s));
        // sdf.append(" {cons(\"" + StringUtil.escapeSort(s) + "12K\")}");
        sdf.append("\n");
      }
    }
    sdf.append("}\n\n");

    sdf.append("%% subsorts 2\n");
    // print K -> Sort > Sort -> K
    sdf.append("context-free priorities\n{\n");
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    K -> " + StringUtil.escapeSort(s));
        // sdf.append(" {cons(\"" + StringUtil.escapeSort(s) + "12K\")}");
        sdf.append("\n");
      }
    }
    sdf.append("} .> {\n");
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    " + StringUtil.escapeSort(s) + " -> K");
        // sdf.append(" {cons(\"K12" + StringUtil.escapeSort(s) + "\")}");
        sdf.append("\n");
      }
    }
    sdf.append("}\n");

    sdf.append("context-free syntax\n");

    for (Production p : psdfv.outsides) {
      if (p.isListDecl()) {
        UserList si = (UserList) p.getItems().get(0);
        sdf.append(
            "    "
                + StringUtil.escapeSort(si.getSort())
                + " "
                + StringUtil.enquoteCString(si.getSeparator())
                + " "
                + StringUtil.escapeSort(p.getSort())
                + " -> "
                + StringUtil.escapeSort(p.getSort()));
        sdf.append(" {cons(\"" + context.getConses().inverse().get(p) + "\")}\n");
        sdf.append("    \"." + p.getSort() + "\" -> " + StringUtil.escapeSort(p.getSort()));
        sdf.append(" {cons(\"" + StringUtil.escapeSort(p.getSort()) + "1Empty\")}\n");
      } else if (p.containsAttribute("bracket")) {
        // don't add bracket attributes added by the user
      } else {
        sdf.append("    ");
        List<ProductionItem> items = p.getItems();
        for (int i = 0; i < items.size(); i++) {
          ProductionItem itm = items.get(i);
          if (itm instanceof Terminal) {
            Terminal t = (Terminal) itm;
            sdf.append(t.toString() + " ");
          } else if (itm instanceof NonTerminal) {
            NonTerminal srt = (NonTerminal) itm;
            // if we are on the first or last place and this sort is not a list, just print the sort
            if (i == 0 || i == items.size() - 1) {
              sdf.append(StringUtil.escapeSort(srt) + " ");
            } else {
              // if this sort should be inserted to avoid the priority filter, then add it to the
              // list
              psdfv.insertSorts.add(srt);
              String tempstr = srt.toString();
              if (tempstr.endsWith("CellSort") || tempstr.endsWith("CellFragment")) tempstr = "Bag";
              sdf.append("InsertDz" + StringUtil.escapeSort(tempstr) + " ");
            }
          }
        }
        sdf.append("-> " + StringUtil.escapeSort(p.getSort()));
        sdf.append(SDFHelper.getSDFAttributes(p, context.getConses()) + "\n");
      }
    }
    for (NonTerminal ss : psdfv.insertSorts)
      sdf.append(
          "    " + StringUtil.escapeSort(ss) + " -> InsertDz" + StringUtil.escapeSort(ss) + "\n");

    sdf.append("\n");
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append(
            "     K CastTypeDz \""
                + s.toString()
                + "\"    -> VariableDz    {cons(\""
                + StringUtil.escapeSort(s)
                + "1Cast\")}\n");
        sdf.append(
            "     K CastTypeDz \""
                + s.toString()
                + "{\" TagListDz \"}\"    -> VariableDz    {cons(\""
                + StringUtil.escapeSort(s)
                + "1CastAttr\")}\n");
      }
    }
    sdf.append("     K CastTypeDz \"K\"        -> VariableDz    {cons(\"K1Cast\")}\n");
    sdf.append("     K CastTypeDz \"KItem\"    -> VariableDz    {cons(\"KItem1Cast\")}\n");
    sdf.append(
        "     K CastTypeDz \"K{\" TagListDz \"}\"        -> VariableDz    {cons(\"K1CastAttr\")}\n");
    sdf.append(
        "     K CastTypeDz \"KItem{\" TagListDz \"}\"    -> VariableDz    {cons(\"KItem1CastAttr\")}\n");
    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append(
            "     " + StringUtil.escapeSort(s) + "DzVar   -> " + StringUtil.escapeSort(s) + "\n");
      }
    }

    sdf.append("\n");
    sdf.append("    VariableDz -> K\n");

    sdf.append("\n\n");
    for (Sort sort : psdfv.constantSorts) {
      String s = StringUtil.escapeSort(sort);
      sdf.append("    Dz" + s + "        -> " + s + "    {cons(\"" + s + "1Const\")}\n");
    }

    sdf.append("\n");
    // sdf.append("    DzDzINT        -> DzDzInt\n");
    // sdf.append("    DzDzID        -> DzDzId\n");
    // sdf.append("    DzDzSTRING    -> DzDzString\n");
    // sdf.append("    DzDzFLOAT    -> DzDzFloat\n");

    sdf.append("\n");

    sdf.append("lexical syntax\n");
    for (Production p : psdfv.constants) {
      sdf.append(
          "    " + p.getItems().get(0) + " -> Dz" + StringUtil.escapeSort(p.getSort()) + "\n");
    }

    sdf.append("\n\n%% sort predicates\n");
    // print is<Sort> predicates (actually KLabel)
    for (NonTerminal sort : psdfv.userSorts) {
      if (!sort.getSort().isKSort()) {
        sdf.append(
            "    \"" + AddPredicates.syntaxPredicate(sort.getSort()) + "\"      -> DzKLabel\n");
      }
      if (AddSymbolicK.allowKSymbolic(sort.getSort())) {
        sdf.append(
            "    \"" + AddPredicates.symbolicPredicate(sort.getSort()) + "\"      -> DzKLabel\n");
        sdf.append(
            "    \"" + AddSymbolicK.symbolicConstructor(sort.getSort()) + "\"      -> DzKLabel\n");
      }
    }

    sdf.append("\n\n");

    sdf.append("\n%% terminals reject\n");
    sdf.append(SDFHelper.getFollowRestrictionsForTerminals(terminals.terminals));

    sdf.append("context-free restrictions\n");

    for (NonTerminal s : psdfv.userSorts) {
      if (!s.getSort().isBaseSort()) {
        sdf.append("    " + StringUtil.escapeSort(s) + "DzVar -/- [a-zA-Z0-9\\{]\n");
      }
    }
    sdf.append("    VariableDz -/- [a-zA-Z0-9\\{]\n");

    sdf.append("lexical restrictions\n");
    sdf.append("%% some restrictions to ensure greedy matching for user defined constants\n");
    // sdf.append("    DzDzInt -/- [0-9]\n");
    sdf.append("    \"is\" -/- [\\#A-Z]\n");
    sdf.append("\n");

    // lexical rules
    sdf.append("lexical syntax\n");
    java.util.Set<Sort> lexerSorts = new HashSet<>();
    for (Production p : psdfv.lexical) {
      Lexical l = (Lexical) p.getItems().get(0);
      lexerSorts.add(p.getSort());
      sdf.append(
          "    " + l.getLexicalRule() + " -> " + StringUtil.escapeSort(p.getSort()) + "Dz\n");
      if (l.getFollow() != null && !l.getFollow().equals("")) {
        psdfv.restrictions.add(new Restrictions(new NonTerminal(p.getSort()), null, l.getFollow()));
      }

      if (!p.containsAttribute("noAutoReject")) {
        // reject all terminals that match the regular expression of the lexical production
        if (p.containsAttribute("regex")) {
          Pattern pat = Pattern.compile(p.getAttribute("regex"));
          for (Terminal t : terminals.terminals) {
            Matcher m = pat.matcher(t.getTerminal());
            if (m.matches())
              sdf.append(
                  "    "
                      + t.toString()
                      + " -> "
                      + StringUtil.escapeSort(p.getSort())
                      + "Dz {reject}\n");
          }
        } else {
          // if there is no regex attribute, then do it the old fashioned way, but way more
          // inefficient
          // add rejects for all possible combinations
          for (Terminal t : terminals.terminals) {
            sdf.append(
                "    "
                    + t.toString()
                    + " -> "
                    + StringUtil.escapeSort(p.getSort())
                    + "Dz {reject}\n");
          }
        }
      }
    }

    // adding cons over lexical rules
    sdf.append("context-free syntax\n");
    for (Sort s : lexerSorts) {
      sdf.append(
          "    "
              + StringUtil.escapeSort(s)
              + "Dz -> "
              + StringUtil.escapeSort(s)
              + " {cons(\""
              + StringUtil.escapeSort(s)
              + "1Const\")}\n");
    }
    sdf.append("\n\n");

    // follow restrictions
    sdf.append("context-free restrictions\n");
    for (Restrictions r : psdfv.restrictions) {
      if (r.getTerminal() != null && !r.getTerminal().getTerminal().equals(""))
        sdf.append(
            "    "
                + StringUtil.enquoteCString(r.getTerminal().getTerminal())
                + " -/- "
                + r.getPattern()
                + "\n");
      else
        sdf.append(
            "    " + StringUtil.escapeSort(r.getNonTerminal()) + " -/- " + r.getPattern() + "\n");
    }

    return sdf;
  }