Kenjis\MonkeyPatch\Patcher\MethodPatcher::generateNewSource PHP Method

    protected static function generateNewSource($source)
    {
        $tokens = token_get_all($source);
        $new_source = '';
        $i = -1;
        ksort(self::$replacement);
        reset(self::$replacement);
        $replacement = each(self::$replacement);
        $start_method = false;
        foreach ($tokens as $token) {
            $i++;
            if ($i == $replacement['key']) {
                $start_method = true;
            }
            if (is_string($token)) {
                if ($start_method && $token === '{') {
                    $new_source .= '{ ' . self::CODE;
                    $start_method = false;
                    $replacement = each(self::$replacement);
                } else {
                    $new_source .= $token;
                }
            } else {
                $new_source .= $token[1];
            }
        }
        return $new_source;
    }