phpstan added and fixes follows

Author: agorlov

composer.json

@@ -20,7 +20,8 @@
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^3.4",
-        "phpunit/phpunit": "^8"
+        "phpunit/phpunit": "^8",
+        "phpstan/phpstan": "^0.11.8"
     },
 
     "autoload": {
@@ -41,6 +42,9 @@
         ],
         "test": [
             "vendor/bin/phpunit --coverage-text --bootstrap ./tests/bootstrap.php --testdox --color -v tests/"
+        ],
+        "phpstan": [
+            "phpstan analyse --error-format=table --no-progress -lmax -c phpstan.neon src/ tests/"
         ]
     }    
 }

phpstan.neon

@@ -0,0 +1,20 @@
+parameters:
+    #bootstrap: %currentWorkingDirectory%/../../../phpstan-bootstrap.php
+    ignoreErrors:
+        # Implementation feature
+        - '#Lipid\\BasePDO::__construct\(\) does not call parent constructor from PDO#'
+
+        # https://github.com/phpstan/phpstan#ignore-error-messages-with-regular-expressions
+        -
+            message: '#Access to an undefined property Lipid\\Response::\$headers#'
+            path: %currentWorkingDirectory%/tests/ActRedirectTest.php
+        -
+            message: "#Offset 'path' does not exist on array()#"
+            path: %currentWorkingDirectory%/src/Action/ActRouted.php
+
+
+    autoload_files:
+        -  %currentWorkingDirectory%/vendor/autoload.php
+    autoload_directories:
+        - %currentWorkingDirectory%/src
+        - %currentWorkingDirectory%/tests

src/Action/ActRouted.php

@@ -6,6 +6,7 @@
 use Lipid\Response;
 use Lipid\Request;
 use Lipid\NotFoundException;
+use Lipid\Request\RqSERVER;
 use Exception;
 
 /**
@@ -54,6 +55,11 @@ public function handle(Response $resp): Response
         }
 
         $path = parse_url($requestUri)['path'];
+        if (! (is_string($path) && strlen($path) > 0) ) {
+            throw new Exception("Unrecognized path in REQUEST_URI");
+        }
+
+
         $path = '/' . rtrim(substr($path, 1), '/');
 
         if (! array_key_exists($path, $this->actionMap)) {

src/App/ApplicationStd.php

@@ -23,7 +23,7 @@ final class ApplicationStd implements App
      *
      * @param Action|array $action action to start (see ActRouted)
      * @param Response $response HTTP Response
-     * @param Request $request HTTP Request
+     * @param Request $SERVER \$_SERVER (RqSERVER)
      */
     public function __construct($action, Response $response = null, Request $SERVER = null)
     {

src/Config/Cfg.php

@@ -39,8 +39,8 @@ final class Cfg implements Config
     /**
      * By default we get config from current work directory
      *
-     * @param string $cfgPath path to config php file
-     * @param Config $cfg
+     * @param Config $creds creds.php
+     * @param Config $config config.php file
      */
     public function __construct(Config $creds = null, Config $config = null)
     {

src/Tpl/Twig.php

@@ -14,7 +14,7 @@ final class Twig implements Tpl
      * Constructor.
      *
      * @param string $tplName template file name
-     * @param string|\Twig\Tenvironment $tplPath directory with templates
+     * @param string|\Twig\Environment $tplPath directory with templates
      */
     public function __construct(string $tplName, $tplPath)
     {