private static void skipWhitespacesAndComments(Lexer lexer) {
    while(TokenSets.ALL_COMMENT_TOKENS.contains(lexer.getTokenType()) || TokenSets.WHITE_SPACES_SET.contains(lexer.getTokenType())) {
      lexer.advance();
    }
  }
private static void skipWhitespacesAndComments(Lexer lexer)