Use PHPStan instead of Psalm

Author: heiglandreas

.gitattributes

@@ -1,14 +1,15 @@
-/tests
-/.dependabot
-/.deploy
-/.github
-/.editorconfig
-/.gitattributes
-/.gitignore
-/.travis.yml
-/build.property
-/build.xml
-/deploy-key.enc
-/phpcs.xml.dist
-/phpunit.travis.xml
-/phpunit.xml.dist
+/tests export-ignore
+/.dependabot export-ignore
+/.deploy export-ignore
+/.github export-ignore
+/.editorconfig export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/.travis.yml export-ignore
+/build.property export-ignore
+/build.xml export-ignore
+/deploy-key.enc export-ignore
+/phpcs.xml.dist export-ignore
+/phpunit.travis.xml export-ignore
+/phpunit.xml.dist export-ignore
+/phpstan* export-ignore

.github/workflows/workflow.yml

@@ -17,14 +17,12 @@ jobs:
       - name: check
         run: ./vendor/bin/phpcs
   test:
-    needs: check
-    runs-on: ubuntu-latest # ${{ matrix.operating-system }}
-    continue-on-error: ${{ matrix.experimental }}
+    runs-on: ubuntu-latest
+    continue-on-error: false
     strategy:
       matrix:
-        # operating-system: [ubuntu-latest, windows-latest, macos-latest]
         php-versions: [ '8.2', '8.3', '8.4' ]
-    name: PHP ${{ matrix.php-versions }} # Test on ${{ matrix.operating-system }}
+    name: PHP ${{ matrix.php-versions }}
     steps:
       - name: Checkout
         uses: actions/checkout@v5
@@ -50,13 +48,11 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: "8.4"
-          tools: phive
-      - name: Download psalm
-        run: phive --no-progress install --trust-gpg-keys 8A03EA3B385DBAA1 psalm
+          tools: phpstan
       - name: install
         run: composer update --no-dev
       - name: analyze
-        run: ./tools/psalm
+        run: phpstan
   coverage:
     needs: test
     if: github.event_name == 'push' && github.ref == 'refs/heads/master'

phpstan.neon

@@ -0,0 +1,8 @@
+parameters:
+    level: 10
+    paths:
+        - src/
+
+
+includes:
+    - phpstan-baseline.neon

src/Notification/NotificationList.php

@@ -37,7 +37,7 @@ class NotificationList extends \ArrayObject
      * @throws \Exception
      * @return void
      */
-    public function append($item)
+    public function append(mixed $item): void
     {
         throw new \Exception(sprintf(
             'Use %s::add() instead',