小众语言 torque 如何使用 markdown 代码块高亮

[chesha1]

v8 使用的 torque 语言，使用 cpp, javascript, typescript 作为代码块的语言，高亮显示得都不好，有什么办法吗？ 举个例子，下面是用 typescript ，就会高亮过多内容

transitioning macro RegExpPrototypeExecBodyWithoutResultFast(
    implicit context: Context)(regexp: JSRegExp,
    string: String): RegExpMatchInfo labels IfDidNotMatch {
  const lastIndex = LoadLastIndexAsLength(regexp, true);
  return RegExpPrototypeExecBodyWithoutResult(regexp, string, lastIndex, true)
      otherwise IfDidNotMatch;
}

下面是用 cpp ，最后一段不知道怎么识别错误了，全高亮成某一个东西了

transitioning macro RegExpExectransitioning macro RegExpExec(
    implicit context: Context)(receiver: JSReceiver, string: String): JSAny {
  // Take the slow path of fetching the exec property, calling it, and
  // verifying its return value.

  const exec = GetProperty(receiver, 'exec');

  // Is {exec} callable?
  typeswitch (exec) {
    case (execCallable: Callable): {
      const result = Call(context, execCallable, receiver, string);
      if (result != Null) {
        ThrowIfNotJSReceiver(
            result, MessageTemplate::kInvalidRegExpExecResult, '');
      }
      return result;
    }
    case (Object): {
      const regexp = Cast<JSRegExp>(receiver) otherwise ThrowTypeError(
          MessageTemplate::kIncompatibleMethodReceiver, 'RegExp.prototype.exec',
          receiver);
      return RegExpPrototypeExecSlow(regexp, string);
    }
  }
}