Upgrade to 4.0.0

kirby/src/Cms/Section.php

@@ -18,24 +18,15 @@ class Section extends Component
 {
 	/**
 	 * Registry for all component mixins
-	 *
-	 * @var array
 	 */
-	public static $mixins = [];
+	public static array $mixins = [];
 
 	/**
 	 * Registry for all component types
-	 *
-	 * @var array
 	 */
-	public static $types = [];
-
+	public static array $types = [];
 
 	/**
-	 * Section constructor.
-	 *
-	 * @param string $type
-	 * @param array $attrs
 	 * @throws \Kirby\Exception\InvalidArgumentException
 	 */
 	public function __construct(string $type, array $attrs = [])
@@ -44,7 +35,7 @@ class Section extends Component
 			throw new InvalidArgumentException('Undefined section model');
 		}
 
-		if ($attrs['model'] instanceof Model === false) {
+		if ($attrs['model'] instanceof ModelWithContent === false) {
 			throw new InvalidArgumentException('Invalid section model');
 		}
 
@@ -64,25 +55,16 @@ class Section extends Component
 		return $this->errors ?? [];
 	}
 
-	/**
-	 * @return \Kirby\Cms\App
-	 */
-	public function kirby()
+	public function kirby(): App
 	{
 		return $this->model()->kirby();
 	}
 
-	/**
-	 * @return \Kirby\Cms\Model
-	 */
-	public function model()
+	public function model(): ModelWithContent
 	{
 		return $this->model;
 	}
 
-	/**
-	 * @return array
-	 */
 	public function toArray(): array
 	{
 		$array = parent::toArray();
@@ -92,9 +74,6 @@ class Section extends Component
 		return $array;
 	}
 
-	/**
-	 * @return array
-	 */
 	public function toResponse(): array
 	{
 		return array_merge([