refactor: fix phpstan errors in Router

system/Router/Attributes/Filter.php

@@ -38,6 +38,9 @@
 #[Attribute(Attribute::TARGET_CLASS | Attribute::TARGET_METHOD | Attribute::IS_REPEATABLE)]
 class Filter implements RouteAttributeInterface
 {
+    /**
+     * @param array<array-key, scalar> $having
+     */
     public function __construct(
         public string $by,
         public array $having = [],
@@ -56,6 +59,9 @@ public function after(RequestInterface $request, ResponseInterface $response): ?
         return null;
     }
 
+    /**
+     * @return list<string>
+     */
     public function getFilters(): array
     {
         if ($this->having === []) {

system/Router/Attributes/Restrict.php

@@ -42,6 +42,11 @@
 #[Attribute(Attribute::TARGET_CLASS | Attribute::TARGET_METHOD | Attribute::IS_REPEATABLE)]
 class Restrict implements RouteAttributeInterface
 {
+    /**
+     * @param list<string>|string|null $environment
+     * @param list<string>|string|null $hostname
+     * @param list<string>|string|null $subdomain
+     */
     public function __construct(
         public array|string|null $environment = null,
         public array|string|null $hostname = null,

system/Router/AutoRouter.php

@@ -55,14 +55,6 @@ public function __construct(
     ) {
     }
 
-    /**
-     * Attempts to match a URI path against Controllers and directories
-     * found in APPPATH/Controllers, to find a matching route.
-     *
-     * @param string $httpVerb HTTP verb like `GET`,`POST`
-     *
-     * @return array [directory_name, controller_name, controller_method, params]
-     */
     public function getRoute(string $uri, string $httpVerb): array
     {
         $segments = explode('/', $uri);
@@ -95,7 +87,7 @@ public function getRoute(string $uri, string $httpVerb): array
             throw PageNotFoundException::forPageNotFound();
         }
 
-        /** @var array $params An array of params to the controller method. */
+        /** @var list<string> $params An array of params to the controller method. */
         $params = [];
 
         if ($segments !== []) {
@@ -177,11 +169,12 @@ public function setTranslateURIDashes(bool $val = false): self
     }
 
     /**
-     * Scans the controller directory, attempting to locate a controller matching the supplied uri $segments
+     * Scans the controller directory, attempting to locate a controller matching the supplied uri `$segments`.
+     * Returns an array of remaining uri segments that don't map onto a directory.
      *
-     * @param array $segments URI segments
+     * @param list<string> $segments URI segments
      *
-     * @return array returns an array of remaining uri segments that don't map onto a directory
+     * @return list<string>
      */
     private function scanControllers(array $segments): array
     {

system/Router/AutoRouterImproved.php

@@ -63,12 +63,11 @@ final class AutoRouterImproved implements AutoRouterInterface
      * Map of URI segments and namespaces.
      *
      * The key is the first URI segment. The value is the controller namespace.
-     * E.g.,
-     *   [
-     *       'blog' => 'Acme\Blog\Controllers',
-     *   ]
+     * ```
+     *   ['blog' => 'Acme\Blog\Controllers']
+     * ```
      *
-     * @var array [ uri_segment => namespace ]
+     * @var array<string, string>
      */
     private array $moduleRoutes;
 
@@ -133,6 +132,9 @@ public function __construct(
         $this->controller = $this->defaultController;
     }
 
+    /**
+     * @return list<string>
+     */
     private function createSegments(string $uri): array
     {
         $segments = explode('/', $uri);
@@ -250,13 +252,6 @@ private function searchLastDefaultController(): bool
         return false;
     }
 
-    /**
-     * Finds controller, method and params from the URI.
-     *
-     * @param string $httpVerb HTTP verb like `GET`,`POST`
-     *
-     * @return array [directory_name, controller_name, controller_method, params]
-     */
     public function getRoute(string $uri, string $httpVerb): array
     {
         $this->uri = $uri;

system/Router/AutoRouterInterface.php

@@ -19,9 +19,11 @@
 interface AutoRouterInterface
 {
     /**
-     * Returns controller, method and params from the URI.
+     * Returns the directory name, controller name, controller method, and any parameters for the given URI and HTTP verb.
      *
-     * @return array [directory_name, controller_name, controller_method, params]
+     * @param string $httpVerb HTTP verb like `GET`,`POST`
+     *
+     * @return array{string|null, string, string, list<string>}
      */
     public function getRoute(string $uri, string $httpVerb): array;
 }