Implement PHPStan up to level 1

Author: CReimer

composer.json

@@ -26,7 +26,8 @@
     },
     "require-dev": {
         "spatie/ray": "^1.0",
-        "pestphp/pest": "^2.0|^3.0"
+        "pestphp/pest": "^2.0|^3.0",
+        "phpstan/phpstan": "^2.1"
     },
     "autoload": {
         "psr-4": {

phpstan.neon

@@ -0,0 +1,4 @@
+parameters:
+	level: 1
+	paths:
+		- src

src/Connection/ImapCommand.php

@@ -86,7 +86,7 @@ public function compile(): array
      */
     public function redacted(): ImapCommand
     {
-        return new static($this->tag, $this->command, array_map(
+        return new self($this->tag, $this->command, array_map(
             function (mixed $token) {
                 return is_array($token)
                     ? array_map(fn () => '[redacted]', $token)

src/Connection/ImapConnection.php

@@ -61,7 +61,7 @@ public static function fake(array $responses = []): static
 
         $stream->feed($responses);
 
-        return new static($stream);
+        return new self($stream);
     }
 
     /**
@@ -719,7 +719,7 @@ protected function assertTaggedResponse(string $tag, ?callable $exception = null
      *
      * @template T of Response
      *
-     * @param  callable(Response): bool  $filter
+     * @param  callable(T): bool  $filter
      * @return T
      */
     protected function assertNextResponse(callable $filter, callable $assertion, callable $exception): Response
@@ -740,7 +740,7 @@ protected function assertNextResponse(callable $filter, callable $assertion, cal
      *
      * @template T of Response
      *
-     * @param  callable(Response): bool  $filter
+     * @param  callable(T): bool  $filter
      * @return T
      */
     protected function nextResponse(callable $filter): Response

src/Connection/ImapQueryBuilder.php

@@ -292,9 +292,9 @@ public function toImap(): string
     /**
      * Create a new query instance (like Eloquent's newQuery).
      */
-    protected function newQuery(): static
+    protected function newQuery(): self
     {
-        return new static;
+        return new self;
     }
 
     /**

src/Exceptions/ImapCommandException.php

@@ -22,7 +22,7 @@ class ImapCommandException extends Exception
      */
     public static function make(ImapCommand $command, Response $response): static
     {
-        $exception = new static(sprintf('IMAP command "%s" failed. Response: "%s"', $command, $response));
+        $exception = new self(sprintf('IMAP command "%s" failed. Response: "%s"', $command, $response));
 
         $exception->command = $command;
         $exception->response = $response;

src/Mailbox.php

@@ -71,7 +71,7 @@ public function __clone(): void
      */
     public static function make(array $config = []): static
     {
-        return new static($config);
+        return new self($config);
     }
 
     /**

src/Support/ForwardsCalls.php

@@ -33,7 +33,7 @@ protected function forwardCallTo(object $object, string $method, array $paramete
     /**
      * Throw a bad method call exception for the given method.
      */
-    protected static function throwBadMethodCallException(string $method)
+    protected static function throwBadMethodCallException(string $method): never
     {
         throw new BadMethodCallException(sprintf(
             'Call to undefined method %s::%s()', static::class, $method