Examples of org.stringtemplate.v4.ST

org.stringtemplate.v4.ST
An instance of the StringTemplate. It consists primarily of a reference to its implementation (shared among all instances) and a hash table of attributes. Because of dynamic scoping, we also need a reference to any enclosing instance. For example, in a deeply nested template for an HTML page body, we could still reference the title attribute defined in the outermost page template. To use templates, you create one (usually via STGroup) and then inject attributes using add(). To render its attacks, use render().

    // TODO: actually set the right Grammar instance to get the filename
    // TODO: have to update all v2 grammar files for this. or use errormanager and tool to get the current grammar
    if (g != null) {
      file = g.getFileName();
    }
    ST st = getMessageTemplate();
    if ( arg!=null ) {
      st.add("arg", arg);
    }
    return super.toString(st);
  }

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    errors = 0;
    warnings = 0;
  }


  public ST getMessageTemplate(ANTLRMessage msg) {
    ST messageST = msg.getMessageTemplate(tool.longMessages);
    ST locationST = getLocationFormat();
    ST reportST = getReportFormat(msg.getErrorType().severity);
    ST messageFormatST = getMessageFormat();


    boolean locationValid = false;
    if (msg.line != -1) {
      locationST.add("line", msg.line);
      locationValid = true;
    }
    if (msg.charPosition != -1) {
      locationST.add("column", msg.charPosition);
      locationValid = true;
    }
    if (msg.fileName != null) {
      File f = new File(msg.fileName);
      // Don't show path to file in messages; too long.
      String displayFileName = msg.fileName;
      if ( f.exists() ) {
        displayFileName = f.getName();
      }
      locationST.add("file", displayFileName);
      locationValid = true;
    }


    messageFormatST.add("id", msg.getErrorType().code);
    messageFormatST.add("text", messageST);


    if (locationValid) reportST.add("location", locationST);
    reportST.add("message", messageFormatST);
    //((DebugST)reportST).inspect();
//    reportST.impl.dump();

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    public ST getLocationFormat() {
        return format.getInstanceOf("location");
    }


    public ST getReportFormat(ErrorSeverity severity) {
        ST st = format.getInstanceOf("report");
        st.add("type", severity.getText());
        return st;
    }

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        e.printStackTrace(System.err);
    }


  public void panic(ErrorType errorType, Object... args) {
    ToolMessage msg = new ToolMessage(errorType, args);
    ST msgST = getMessageTemplate(msg);
    String outputMsg = msgST.render();
    if ( formatWantsSingleLineMessage() ) {
      outputMsg = outputMsg.replace('\n', ' ');
    }
    panic(outputMsg);
  }

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    return args;
    }


  public ST getMessageTemplate(boolean verbose) {
    ST messageST = new ST(getErrorType().msg);
    messageST.impl.name = errorType.name();


    messageST.add("verbose", verbose);
    Object[] args = getArgs();
    for (int i=0; i<args.length; i++) {
      String attr = "arg";
      if ( i>0 ) attr += i + 1;
      messageST.add(attr, args[i]);
    }
    if ( args.length<2 ) messageST.add("arg2", null); // some messages ref arg2


    Throwable cause = getCause();
    if ( cause!=null ) {
      messageST.add("exception", cause);
      messageST.add("stackTrace", cause.getStackTrace());
    }
    else {
      messageST.add("exception", null); // avoid ST error msg
      messageST.add("stackTrace", null);
    }


    return messageST;
  }

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  }


  // --------- get transformed rules ----------------


  public String getArtificialOpPrecRule() {
    ST ruleST = recRuleTemplates.getInstanceOf("recRule");
    ruleST.add("ruleName", ruleName);
    ST ruleArgST = codegenTemplates.getInstanceOf("recRuleArg");
    ruleST.add("argName", ruleArgST);
    ST setResultST = codegenTemplates.getInstanceOf("recRuleSetResultAction");
    ruleST.add("setResultAction", setResultST);
    ruleST.add("userRetvals", retvals);


    LinkedHashMap<Integer, LeftRecursiveRuleAltInfo> opPrecRuleAlts = new LinkedHashMap<Integer, LeftRecursiveRuleAltInfo>();
    opPrecRuleAlts.putAll(binaryAlts);
    opPrecRuleAlts.putAll(ternaryAlts);
    opPrecRuleAlts.putAll(suffixAlts);
    for (int alt : opPrecRuleAlts.keySet()) {
      LeftRecursiveRuleAltInfo altInfo = opPrecRuleAlts.get(alt);
      ST altST = recRuleTemplates.getInstanceOf("recRuleAlt");
      ST predST = codegenTemplates.getInstanceOf("recRuleAltPredicate");
      predST.add("opPrec", precedence(alt));
      predST.add("ruleName", ruleName);
      altST.add("pred", predST);
      altST.add("alt", altInfo);
      altST.add("precOption", LeftRecursiveRuleTransformer.PRECEDENCE_OPTION_NAME);
      altST.add("opPrec", precedence(alt));
      ruleST.add("opAlts", altST);

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      throw new IllegalStateException(String.format("No %s instance is available.", Tool.class.getName()));
    }


    StringBuilder buf = new StringBuilder();
    for (ANTLRMessage m : all) {
      ST st = tool.errMgr.getMessageTemplate(m);
      buf.append(st.render());
      buf.append("\n");
    }


    return buf.toString();
  }

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      ATNFactory factory = new ParserATNFactory(g);
      if (g.isLexer()) factory = new LexerATNFactory((LexerGrammar) g);
      g.atn = factory.createATN();


      CodeGenerator gen = new CodeGenerator(g);
      ST outputFileST = gen.generateParser();


//      STViz viz = outputFileST.inspect();
//      try {
//        viz.waitForClose();
//      }

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    System.out.println(msg);
  }


  @Override
  public void error(ANTLRMessage msg) {
    ST msgST = tool.errMgr.getMessageTemplate(msg);
    String outputMsg = msgST.render();
    if (tool.errMgr.formatWantsSingleLineMessage()) {
      outputMsg = outputMsg.replace('\n', ' ');
    }
    System.err.println(outputMsg);
  }

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    System.err.println(outputMsg);
  }


  @Override
  public void warning(ANTLRMessage msg) {
    ST msgST = tool.errMgr.getMessageTemplate(msg);
    String outputMsg = msgST.render();
    if (tool.errMgr.formatWantsSingleLineMessage()) {
      outputMsg = outputMsg.replace('\n', ' ');
    }
    System.err.println(outputMsg);
  }

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