Refactor StreamWrapper and raise psalm level to 4

psalm.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <psalm
-    errorLevel="5"
+    errorLevel="4"
     findUnusedBaselineEntry="true"
     findUnusedCode="false"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
@@ -13,4 +13,7 @@
             <directory name="vendor" />
         </ignoreFiles>
     </projectFiles>
+    <issueHandlers>
+        <MixedAssignment errorLevel="suppress" />
+    </issueHandlers>
 </psalm>

src/Collector/Console/CommandCollector.php

@@ -61,17 +61,15 @@ public function collect(ConsoleEvent|ConsoleErrorEvent|ConsoleTerminateEvent $ev
             return;
         }
 
-        /** @noinspection PhpConditionAlreadyCheckedInspection */
-        if ($event instanceof ConsoleEvent) {
-            $this->commands[$event::class] = [
-                'name' => $command->getName(),
-                'command' => $command,
-                'input' => $this->castInputToString($event->getInput()),
-                'output' => $this->fetchOutput($event->getOutput()),
-                'arguments' => $command->getDefinition()->getArguments(),
-                'options' => $command->getDefinition()->getOptions(),
-            ];
-        }
+        // $event instance of ConsoleEvent
+        $this->commands[$event::class] = [
+            'name' => $command->getName(),
+            'command' => $command,
+            'input' => $this->castInputToString($event->getInput()),
+            'output' => $this->fetchOutput($event->getOutput()),
+            'arguments' => $command->getDefinition()->getArguments(),
+            'options' => $command->getDefinition()->getOptions(),
+        ];
     }
 
     public function getSummary(): array

src/Collector/Console/ConsoleAppInfoCollector.php

@@ -38,7 +38,7 @@ public function getCollected(): array
 
     public function collect(object $event): void
     {
-        if (!is_object($event) || !$this->isActive()) {
+        if (!$this->isActive()) {
             return;
         }
 

src/Collector/Stream/FilesystemStreamProxy.php

@@ -17,7 +17,7 @@ class FilesystemStreamProxy implements StreamWrapperInterface
      * @var resource|null
      */
     public $context;
-    public StreamWrapperInterface $decorated;
+    public StreamWrapper $decorated;
     public bool $ignored = false;
 
     public static ?FilesystemStreamCollector $collector = null;

src/Collector/Stream/HttpStreamProxy.php

@@ -20,7 +20,7 @@ class HttpStreamProxy implements StreamWrapperInterface
      * @var resource|null
      */
     public $context;
-    public StreamWrapperInterface $decorated;
+    public StreamWrapper $decorated;
     public bool $ignored = false;
 
     public static ?HttpStreamCollector $collector = null;

src/Collector/Web/RequestCollector.php

@@ -13,8 +13,6 @@
 use Yiisoft\Yii\Debug\Collector\CollectorTrait;
 use Yiisoft\Yii\Debug\Collector\SummaryCollectorInterface;
 
-use function is_object;
-
 final class RequestCollector implements SummaryCollectorInterface
 {
     use CollectorTrait;
@@ -80,7 +78,7 @@ public function getCollected(): array
 
     public function collect(object $event): void
     {
-        if (!is_object($event) || !$this->isActive()) {
+        if (!$this->isActive()) {
             return;
         }
 

src/Collector/Web/WebAppInfoCollector.php

@@ -11,8 +11,6 @@
 use Yiisoft\Yii\Debug\Collector\CollectorTrait;
 use Yiisoft\Yii\Debug\Collector\SummaryCollectorInterface;
 
-use function is_object;
-
 final class WebAppInfoCollector implements SummaryCollectorInterface
 {
     use CollectorTrait;
@@ -39,7 +37,7 @@ public function getCollected(): array
 
     public function collect(object $event): void
     {
-        if (!is_object($event) || !$this->isActive()) {
+        if (!$this->isActive()) {
             return;
         }
 

src/Helper/StreamWrapper/StreamWrapper.php

@@ -25,9 +25,9 @@ final class StreamWrapper implements StreamWrapperInterface
     public ?string $filename = null;
 
     /**
-     * @var resource|null
+     * @var false|resource
      */
-    public $stream = null;
+    public $stream = false;
 
     public function dir_closedir(): bool
     {
@@ -49,12 +49,7 @@ public function dir_readdir(): false|string
 
     public function dir_rewinddir(): bool
     {
-        if (!is_resource($this->stream)) {
-            return false;
-        }
-
         rewinddir($this->stream);
-        /** @noinspection PhpConditionAlreadyCheckedInspection */
         return is_resource($this->stream);
     }
 
@@ -76,7 +71,9 @@ public function rmdir(string $path, int $options): bool
 
     public function stream_cast(int $castAs)
     {
-        //????
+        // ????
+
+        return false;
     }
 
     public function stream_eof(): bool
@@ -183,7 +180,7 @@ public function stream_close(): void
          * @psalm-suppress InvalidPropertyAssignmentValue
          */
         fclose($this->stream);
-        $this->stream = null;
+        $this->stream = false;
     }
 
     public function stream_lock(int $operation): bool

src/Helper/StreamWrapper/StreamWrapperInterface.php

@@ -23,6 +23,9 @@ public function stream_eof(): bool;
 
     public function stream_seek(int $offset, int $whence = SEEK_SET): bool;
 
+    /**
+     * @return false|resource
+     */
     public function stream_cast(int $castAs);
 
     public function stream_stat(): array|false;