DateTime: added immutable usage detector™

src/Dibi/DateTime.php

@@ -43,4 +43,64 @@ class DateTime extends \DateTimeImmutable
 	{
 		return $this->format('Y-m-d H:i:s.u');
 	}
+
+
+	/********************* immutable usage detector ****************d*g**/
+
+
+	public function __destruct()
+	{
+		$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
+		if (isset($trace[0]['file'], $trace[1]['function']) && $trace[0]['file'] === __FILE__ && $trace[1]['function'] !== '__construct') {
+			trigger_error(__CLASS__ . ' is immutable now, check how it is used in ' . $trace[1]['file'] . ':' . $trace[1]['line'], E_USER_WARNING);
+		}
+	}
+
+
+	public function add($interval)
+	{
+		return parent::add($interval);
+	}
+
+
+	public function modify($modify)
+	{
+		return parent::modify($modify);
+	}
+
+
+	public function setDate($year, $month, $day)
+	{
+		return parent::setDate($year, $month, $day);
+	}
+
+
+	public function setISODate($year, $week, $day = 1)
+	{
+		return parent::setISODate($year, $week, $day);
+	}
+
+
+	public function setTime($hour, $minute, $second = 0, $micro = 0)
+	{
+		return parent::setTime($hour, $minute, $second, $micro);
+	}
+
+
+	public function setTimestamp($unixtimestamp)
+	{
+		return parent::setTimestamp($unixtimestamp);
+	}
+
+
+	public function setTimezone($timezone)
+	{
+		return parent::setTimezone($timezone);
+	}
+
+
+	public function sub($interval)
+	{
+		return parent::sub($interval);
+	}
 }