Package org.antlr.v4.tool.ast

Examples of org.antlr.v4.tool.ast.GrammarRootAST.addChild()

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      // can't use wizard; need special node types
      GrammarAST litRule = new RuleAST(ANTLRParser.RULE);
      BlockAST blk = new BlockAST(ANTLRParser.BLOCK);
      AltAST alt = new AltAST(ANTLRParser.ALT);
      TerminalAST slit = new TerminalAST(new CommonToken(ANTLRParser.STRING_LITERAL, lit));
      alt.addChild(slit);
      blk.addChild(alt);
      CommonToken idToken = new CommonToken(ANTLRParser.TOKEN_REF, rname);
      litRule.addChild(new TerminalAST(idToken));
      litRule.addChild(blk);
      lexerRulesRoot.insertChild(insertIndex, litRule);
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      GrammarAST litRule = new RuleAST(ANTLRParser.RULE);
      BlockAST blk = new BlockAST(ANTLRParser.BLOCK);
      AltAST alt = new AltAST(ANTLRParser.ALT);
      TerminalAST slit = new TerminalAST(new CommonToken(ANTLRParser.STRING_LITERAL, lit));
      alt.addChild(slit);
      blk.addChild(alt);
      CommonToken idToken = new CommonToken(ANTLRParser.TOKEN_REF, rname);
      litRule.addChild(new TerminalAST(idToken));
      litRule.addChild(blk);
      lexerRulesRoot.insertChild(insertIndex, litRule);
//      lexerRulesRoot.getChildren().add(0, litRule);
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    }

    for (GrammarASTWithOptions r : rules) {
      String ruleName = r.getChild(0).getText();
      if (Grammar.isTokenName(ruleName)) {
        lexerRulesRoot.addChild((Tree)adaptor.dupTree(r));
        rulesWeMoved.add(r);
      }
    }
    for (GrammarAST r : rulesWeMoved) {
      combinedRulesRoot.deleteChild( r );
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      AltAST alt = new AltAST(ANTLRParser.ALT);
      TerminalAST slit = new TerminalAST(new CommonToken(ANTLRParser.STRING_LITERAL, lit));
      alt.addChild(slit);
      blk.addChild(alt);
      CommonToken idToken = new CommonToken(ANTLRParser.TOKEN_REF, rname);
      litRule.addChild(new TerminalAST(idToken));
      litRule.addChild(blk);
      lexerRulesRoot.insertChild(insertIndex, litRule);
//      lexerRulesRoot.getChildren().add(0, litRule);
      lexerRulesRoot.freshenParentAndChildIndexes(); // reset indexes and set litRule parent
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      TerminalAST slit = new TerminalAST(new CommonToken(ANTLRParser.STRING_LITERAL, lit));
      alt.addChild(slit);
      blk.addChild(alt);
      CommonToken idToken = new CommonToken(ANTLRParser.TOKEN_REF, rname);
      litRule.addChild(new TerminalAST(idToken));
      litRule.addChild(blk);
      lexerRulesRoot.insertChild(insertIndex, litRule);
//      lexerRulesRoot.getChildren().add(0, litRule);
      lexerRulesRoot.freshenParentAndChildIndexes(); // reset indexes and set litRule parent

      // next literal will be added after the one just added
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    String lexerName = combinedAST.getChild(0).getText()+"Lexer";
    GrammarRootAST lexerAST =
        new GrammarRootAST(new CommonToken(ANTLRParser.GRAMMAR, "LEXER_GRAMMAR"), combinedGrammar.ast.tokenStream);
    lexerAST.grammarType = ANTLRParser.LEXER;
    lexerAST.token.setInputStream(combinedAST.token.getInputStream());
    lexerAST.addChild((GrammarAST)adaptor.create(ANTLRParser.ID, lexerName));

    // COPY OPTIONS
    GrammarAST optionsRoot =
      (GrammarAST)combinedAST.getFirstChildWithType(ANTLRParser.OPTIONS);
    if ( optionsRoot!=null && optionsRoot.getChildCount()!=0 ) {
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    // COPY OPTIONS
    GrammarAST optionsRoot =
      (GrammarAST)combinedAST.getFirstChildWithType(ANTLRParser.OPTIONS);
    if ( optionsRoot!=null && optionsRoot.getChildCount()!=0 ) {
      GrammarAST lexerOptionsRoot = (GrammarAST)adaptor.dupNode(optionsRoot);
      lexerAST.addChild(lexerOptionsRoot);
      GrammarAST[] options = optionsRoot.getChildren().toArray(new GrammarAST[0]);
      for (GrammarAST o : options) {
        String optionName = o.getChild(0).getText();
        if ( Grammar.lexerOptions.contains(optionName) &&
           !Grammar.doNotCopyOptionsToLexer.contains(optionName) )
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    // COPY all named actions, but only move those with lexer:: scope
    List<GrammarAST> actionsWeMoved = new ArrayList<GrammarAST>();
    for (GrammarAST e : elements) {
      if ( e.getType()==ANTLRParser.AT ) {
        lexerAST.addChild((Tree)adaptor.dupTree(e));
        if ( e.getChild(0).getText().equals("lexer") ) {
          actionsWeMoved.add(e);
        }
      }
    }
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    // MOVE lexer rules

    GrammarAST lexerRulesRoot =
      (GrammarAST)adaptor.create(ANTLRParser.RULES, "RULES");
    lexerAST.addChild(lexerRulesRoot);
    List<GrammarAST> rulesWeMoved = new ArrayList<GrammarAST>();
    GrammarASTWithOptions[] rules;
    if (combinedRulesRoot.getChildCount() > 0) {
      rules = combinedRulesRoot.getChildren().toArray(new GrammarASTWithOptions[0]);
    }
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      AltAST alt = new AltAST(ANTLRParser.ALT);
      TerminalAST slit = new TerminalAST(new CommonToken(ANTLRParser.STRING_LITERAL, lit));
      alt.addChild(slit);
      blk.addChild(alt);
      CommonToken idToken = new CommonToken(ANTLRParser.TOKEN_REF, rname);
      litRule.addChild(new TerminalAST(idToken));
      litRule.addChild(blk);
      lexerRulesRoot.insertChild(insertIndex, litRule);
//      lexerRulesRoot.getChildren().add(0, litRule);
      lexerRulesRoot.freshenParentAndChildIndexes(); // reset indexes and set litRule parent
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