QuackCompiler\Parser\Grammar::_whileStmt PHP 메소드

    public function _whileStmt()
    {
        $this->parser->match(Tag::T_WHILE);
        $condition = $this->_expr();
        $body = iterator_to_array($this->_innerStmtList());
        $this->parser->match(Tag::T_END);
        return new WhileStmt($condition, $body);
    }