Examples of org.stringtemplate.v4.AttributeRenderer

org.stringtemplate.v4.STGroupFile
This interface describes an object that knows how to format or otherwise render an object appropriately. There is one renderer registered per group for a given Java type. If the format string passed to the renderer is not recognized then simply call toString(). formatString can be null but locale will at least be Locale.getDefault()

      "error(" + ErrorType.LOCAL_CONFLICTS_WITH_RETVAL.code + "): T.g4:3:12: local expr conflicts with return value with same name\n" +
      "error(" + ErrorType.LABEL_CONFLICTS_WITH_RULE.code + "): T.g4:4:4: label expr conflicts with rule with same name\n" +
      "error(" + ErrorType.LABEL_CONFLICTS_WITH_ARG.code + "): T.g4:4:4: label expr conflicts with parameter with same name\n" +
      "error(" + ErrorType.LABEL_CONFLICTS_WITH_RETVAL.code + "): T.g4:4:4: label expr conflicts with return value with same name\n" +
      "error(" + ErrorType.LABEL_CONFLICTS_WITH_LOCAL.code + "): T.g4:4:4: label expr conflicts with local with same name\n";
    ST grammarST = new ST(grammarTemplate);
    grammarST.add("args", "int expr");
    grammarST.add("retvals", "int expr");
    grammarST.add("locals", "int expr");
    grammarST.add("body", "expr=expr");
    testErrors(new String[] { grammarST.render(), expected }, false);
  }

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    setFileName(fileName);
    // ensure we have the composite set to something
    if ( composite.delegateGrammarTreeRoot==null ) {
      composite.setDelegationRoot(this);
    }
    STGroup lexerGrammarSTG = new STGroupString(lexerGrammarTemplate);
    lexerGrammarST = lexerGrammarSTG.getInstanceOf("grammar");
    target = CodeGenerator.loadLanguageTarget((String) getOption("language"));
  }

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  public Grammar(Tool tool) {
    setTool(tool);
    builtFromString = true;
    composite = new CompositeGrammar(this);
    STGroup lexerGrammarSTG = new STGroupString(lexerGrammarTemplate);
    lexerGrammarST = lexerGrammarSTG.getInstanceOf("grammar");
    target = CodeGenerator.loadLanguageTarget((String)getOption("language"));
  }

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        // new output dir for each test
        tmpdir = new File(System.getProperty("java.io.tmpdir"),
              "antlr-"+getClass().getName()+"-"+
              System.currentTimeMillis()).getAbsolutePath();
        ErrorManager.resetErrorState();
        STGroup.defaultGroup = new STGroup();
    }

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    return getBadWords().contains(idNode.getText());
  }


  @Override
  protected STGroup loadTemplates() {
    STGroup result = targetTemplates.get();
    if (result == null) {
      result = super.loadTemplates();
      result.registerRenderer(String.class, new JavaStringRenderer(), true);
      targetTemplates.set(result);
    }


    return result;
  }

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  }


  public void testActions(String templates, String actionName, String action, String expected) throws org.antlr.runtime.RecognitionException {
    int lp = templates.indexOf('(');
    String name = templates.substring(0, lp);
    STGroup group = new STGroupString(templates);
    ST st = group.getInstanceOf(name);
    st.add(actionName, action);
    String grammar = st.render();
    ErrorQueue equeue = new ErrorQueue();
    Grammar g = new Grammar(grammar, equeue);
    if ( g.ast!=null && !g.ast.hasErrors ) {

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  public static void setLocale(Locale locale) {
    ErrorManager.locale = locale;
    String language = locale.getLanguage();
    String fileName = "org/antlr/tool/templates/messages/languages/"+language+".stg";
    try {
      messages = new STGroupFile(fileName);
    }
    catch (IllegalArgumentException iae) {
      if ( language.equals(Locale.US.getLanguage()) ) {
        rawError("ANTLR installation corrupted; cannot find English messages file "+fileName);
        panic();

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   *  Otherwise we just use the default "antlr".
   */
  public static void setFormat(String formatName) {
    ErrorManager.formatName = formatName;
    String fileName = "org/antlr/tool/templates/messages/formats/"+formatName+".stg";
    format = new STGroupFile(fileName);
    format.setListener(initSTListener);
    if ( !format.isDefined("message") ) { // pick random msg to load
      if ( formatName.equals("antlr") ) {
        rawError("no such message format file "+fileName+" retrying with default ANTLR format");
        setFormat("antlr"); // recurse on this rule, trying the default message format

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            rawError("no such message format file "+fileName+" retrying with default ANTLR format");
            setFormat("antlr"); // recurse on this rule, trying the default message format
            return;
        }


        format = new STGroupFile(fileName, "UTF-8");
        format.load();


        if ( !initSTListener.errors.isEmpty() ) {
            rawError("ANTLR installation corrupted; can't load messages format file:\n"+
                     initSTListener.toString());

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    loadPrecRuleTemplates();
  }


  public void loadPrecRuleTemplates() {
    String templateGroupFile = "org/antlr/v4/tool/templates/LeftRecursiveRules.stg";
    recRuleTemplates = new STGroupFile(templateGroupFile);
    if ( !recRuleTemplates.isDefined("recRule") ) {
      tool.errMgr.toolError(ErrorType.MISSING_CODE_GEN_TEMPLATES, "LeftRecursiveRules");
    }


    // use codegen to get correct language templates; that's it though

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