added Helpers::MAX_DEPTH

Author: dg

src/PhpGenerator/Helpers.php

@@ -18,6 +18,7 @@
 class Helpers
 {
 	const PHP_IDENT = '[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*';
+	const MAX_DEPTH = 50;
 
 
 	/**
@@ -67,7 +68,7 @@ private static function _dump(& $var, $level = 0)
 			if (empty($var)) {
 				$out = '';
 
-			} elseif ($level > 50 || isset($var[$marker])) {
+			} elseif ($level > self::MAX_DEPTH || isset($var[$marker])) {
 				throw new Nette\InvalidArgumentException('Nesting level too deep or recursive dependency.');
 
 			} else {
@@ -97,7 +98,7 @@ private static function _dump(& $var, $level = 0)
 			$class = get_class($var);
 
 			static $list = array();
-			if ($level > 50 || in_array($var, $list, TRUE)) {
+			if ($level > self::MAX_DEPTH || in_array($var, $list, TRUE)) {
 				throw new Nette\InvalidArgumentException('Nesting level too deep or recursive dependency.');
 
 			} else {