set-psalm-baseline

.psr-container.php.stub

@@ -0,0 +1,23 @@
+<?php
+/**
+ * File named as .stub to avoid duplicate declaration of the interface in consuming projects
+ */
+declare(strict_types=1);
+
+namespace Psr\Container {
+    /**
+     * Provides automatic type inference for Psalm when retrieving a service from a container using a FQCN
+     */
+    interface ContainerInterface
+    {
+        /** @param string|class-string $id */
+        public function has(string $id): bool;
+
+        /**
+         * @template T of object
+         * @psalm-param string|class-string<T> $id
+         * @psalm-return ($id is class-string ? T : mixed)
+         */
+        public function get(string $id): mixed;
+    }
+}

composer.json

@@ -69,6 +69,7 @@
         "test": "phpunit --colors=always --testsuite \"unit test\"",
         "test-coverage": "phpunit --colors=always --coverage-clover clover.xml",
         "test-integration": "phpunit --colors=always --testsuite \"integration test\"",
+        "static-analysis": "psalm --shepherd --stats",
         "upload-coverage": "coveralls -v"
     },
     "conflict": {