Fix psalm, clear psalm-baseline.yaml

src/Proto/Frame/Smtp.php

@@ -14,6 +14,7 @@
 /**
  * @internal
  * @psalm-internal Buggregator
+ * @psalm-import-type TArrayData from Message\Smtp
  */
 final class Smtp extends Frame implements FilesCarrier
 {
@@ -34,6 +35,7 @@ public function __toString(): string
 
     public static function fromString(string $payload, DateTimeImmutable $time): static
     {
+        /** @var TArrayData $payload */
         $payload = \json_decode($payload, true, \JSON_THROW_ON_ERROR);
         $message = Message\Smtp::fromArray($payload);
 

src/Sender/Console/Renderer/SentryEnvelope.php

@@ -36,7 +36,7 @@ public function render(OutputInterface $output, Frame $frame): void
             ++$i;
             try {
                 $type = $item->headers['type'] ?? null;
-                Common::renderHeader2($output, "Item $i", green: $type);
+                Common::renderHeader2($output, "Item $i", green: (string)$type);
 
                 Header::renderMessageHeader($output, $item->payload);
                 $this->renderItem($output, $item);

src/Sender/Console/Renderer/Smtp.php

@@ -58,9 +58,9 @@ public function render(OutputInterface $output, Frame $frame): void
             foreach ($message->getAttachments() as $attach) {
                 Files::renderFile(
                     $output,
-                    $attach->getClientFilename(),
+                    $attach->getClientFilename() ?? '',
                     $attach->getSize(),
-                    $attach->getClientMediaType(),
+                    $attach->getClientMediaType() ?? '',
                 );
             }
             $output->writeln('');

src/Sender/Console/Renderer/TemplateRenderer.php

@@ -20,6 +20,7 @@ public function __construct(
 
     public function render(string $template, array $data = []): void
     {
+        /** @psalm-suppress InternalMethod */
         $this->renderer->render(
             $this->templateEngine->render($template, $data),
             0

src/Sender/Console/Renderer/VarDumper.php

@@ -58,7 +58,7 @@ public function __construct(
             }
 
             /**
-             * @psalm-suppress RiskyTruthyFalsyComparison
+             * @psalm-suppress RiskyTruthyFalsyComparison, MixedArrayAccess, MixedArgument
              */
             public function describe(OutputInterface $output, Data $data, array $context, int $clientId): void
             {
@@ -94,7 +94,7 @@ public function describe(OutputInterface $output, Data $data, array $context, in
                         empty($request['method'] ?? '') or $meta['Method'] = $request['method'];
                         empty($request['uri'] ?? '') or $meta['URI'] = $request['uri'];
                         if ($controller = $request['controller']) {
-                            $meta['Controller'] = rtrim($this->dumper->dump($controller, true), "\n");
+                            $meta['Controller'] = \rtrim((string) $this->dumper->dump($controller, true), "\n");
                         }
                     } elseif (isset($context['cli'])) {
                         $meta['Command'] = $context['cli']['command_line'];
@@ -107,7 +107,7 @@ public function describe(OutputInterface $output, Data $data, array $context, in
                 Common::renderMetadata($output, $meta);
                 $output->writeln('');
 
-                $output->write($this->dumper->dump($data, true), true, OutputInterface::OUTPUT_RAW);
+                $output->write((string) $this->dumper->dump($data, true), true, OutputInterface::OUTPUT_RAW);
             }
         };
     }

src/Sender/Console/Support/Common.php

@@ -30,6 +30,10 @@ public static function renderHeader2(OutputInterface $output, string $title, str
     {
         $parts = ["<fg=white;options=bold># $title </>"];
         foreach ($sub as $color => $value) {
+            if ($value === '') {
+                continue;
+            }
+
             $color = \is_string($color) ? $color : 'gray';
             $parts[] = \sprintf('<fg=%s> %s </>', $color, $value);
         }
@@ -57,9 +61,11 @@ public static function renderHighlightedLine(OutputInterface $output, string $li
      */
     public static function renderMetadata(OutputInterface $output, array $data): void
     {
-        $maxHeaderLength = \max(\array_map('strlen', \array_keys($data)));
+        $maxHeaderLength = \max(0, ...\array_map(
+            static fn(string|int $key): int => \strlen((string) $key),
+            \array_keys($data)),
+        );
 
-        /** @var mixed $value */
         foreach ($data as $head => $value) {
             // Align headers to the right
             self::renderHeader(

src/Sender/Console/Support/Files.php

@@ -13,6 +13,8 @@
 final class Files
 {
     /**
+     * @param non-negative-int|null $size
+     *
      * Render file info. Example:
      *  ┌───┐  logo.ico
      *  │ico│  20.06 KiB
@@ -33,8 +35,10 @@ public static function renderFile(
         string ...$additional
     ): void {
         // File extension
-        $ex = \substr($fileName, \strrpos($fileName, '.') + 1);
-        $ex = \strlen($ex) > 3 ? '   ' :  \str_pad($ex, 3, ' ', \STR_PAD_BOTH);
+        $dotPos = \strrpos($fileName, '.');
+        $ex = $dotPos === false || \strlen($fileName) - $dotPos > 4
+            ? '   '
+            : \str_pad(\substr($fileName, $dotPos + 1), 3, ' ', \STR_PAD_BOTH);
 
         // File size
         $sizeStr = self::normalizeSize($size) ?? 'unknown size';

src/Sender/Console/Support/Tables.php

@@ -23,7 +23,7 @@ public static function renderKeyValueTable(OutputInterface $output, string $titl
             return;
         }
 
-        $keyLength = \max(\array_map(static fn($key) => \strlen($key), \array_keys($data)));
+        $keyLength = \max(\array_map(static fn($key) => \strlen((string) $key), \array_keys($data)));
         $valueLength = \max(1, (new Terminal())->getWidth() - 7 - $keyLength);
 
         $table->setRows([...(static function (array $data) use ($valueLength): iterable {

src/Sender/ConsoleSender.php

@@ -21,8 +21,10 @@ final class ConsoleSender implements Sender
 {
     public static function create(OutputInterface $output): self
     {
+        /** @psalm-suppress InternalMethod, InternalClass */
         Termwind::renderUsing($output);
 
+        /** @psalm-suppress InternalClass */
         $templateRenderer = new TemplateRenderer(
             new HtmlRenderer(),
             new TemplateEngine(Info::TRAP_ROOT . '/resources/templates')

src/Socket/Client.php

@@ -26,6 +26,9 @@ final class Client implements Destroyable
     private \Closure $onPayload;
     private \Closure $onClose;
 
+    /**
+     * @param positive-int $payloadSize
+     */
     private function __construct(
         private readonly \Socket $socket,
         private readonly int $payloadSize,
@@ -112,21 +115,21 @@ protected function onInit(): void
     }
 
     /**
-     * @param callable(string): void $callable Non-static callable.
+     * @param callable(string): void $callable If non-static callable, it will be bound to the current instance.
      * @psalm-assert callable(string): void $callable
      */
     public function setOnPayload(callable $callable): void
     {
-        $this->onPayload = \Closure::bind($callable(...), $this);
+        $this->onPayload = \Closure::bind($callable(...), $this) ?? $callable(...);
     }
 
     /**
-     * @param callable(): void $callable Non-static callable.
+     * @param callable(): void $callable If non-static callable, it will be bound to the current instance.
      * @psalm-assert callable(): void $callable
      */
     public function setOnClose(callable $callable): void
     {
-        $this->onClose = \Closure::bind($callable(...), $this);
+        $this->onClose = \Closure::bind($callable(...), $this) ?? $callable(...);
     }
 
     public function send(string $payload): void

src/Socket/Server.php

@@ -20,8 +20,7 @@
  */
 final class Server implements Processable, Cancellable, Destroyable
 {
-    /** @var false|resource|Socket */
-    private $socket;
+    private Socket $socket;
 
     /** @var array<int, Client> */
     private array $clients = [];
@@ -41,13 +40,11 @@ private function __construct(
         private readonly ?Closure $clientInflector,
         private readonly Logger $logger,
     ) {
-        $this->socket = @\socket_create_listen($port);
+        $this->socket = @\socket_create_listen($port) ?: throw new \RuntimeException('Socket create failed.');
+
         /** @link https://github.com/buggregator/trap/pull/14 */
         // \socket_set_option($this->socket, \SOL_SOCKET, \SO_LINGER, ['l_linger' => 0, 'l_onoff' => 1]);
 
-        if ($this->socket === false) {
-            throw new \RuntimeException('Socket create failed.');
-        }
         \socket_set_nonblock($this->socket);
 
         $logger->status('Application', 'Server started on 127.0.0.1:%s', $port);
@@ -92,6 +89,7 @@ public static function init(
 
     public function process(): void
     {
+        // /** @psalm-suppress PossiblyInvalidArgument */
         while (!$this->cancelled and false !== ($socket = \socket_accept($this->socket))) {
             $client = null;
             try {

src/Support/StreamHelper.php

@@ -67,7 +67,7 @@ public static function strpos(StreamInterface $stream, string $substr): int|fals
      *
      * @param non-empty-string $boundary
      *
-     * @return int Bytes written
+     * @return int<0, max> Bytes written
      */
     public static function writeStreamUntil(StreamInterface $from, StreamInterface $to, string $boundary): int
     {

src/Traffic/Dispatcher/Http.php

@@ -52,7 +52,7 @@ public function __construct(
             /** @see RequestHandler::handle() */
             'handle',
             static function (): never { throw new \LogicException('No handler found for request.'); },
-            Generator::class,
+            'never',
         );
     }
 

src/Traffic/Dispatcher/Smtp.php

@@ -31,7 +31,6 @@ public function __construct(
     public function dispatch(StreamClient $stream): iterable
     {
         $stream->sendData($this->createResponse(self::READY, 'mailamie'));
-
         $protocol = [];
 
         $message = null;
@@ -40,9 +39,11 @@ public function dispatch(StreamClient $stream): iterable
             if (\preg_match('/^(?:EHLO|HELO)/', $response)) {
                 $stream->sendData($this->createResponse(self::OK));
             } elseif (\preg_match('/^MAIL FROM:\s*<(.*)>/', $response, $matches)) {
+                /** @var array{0: non-empty-string, 1: string} $matches */
                 $protocol['FROM'][] = $matches[1];
                 $stream->sendData($this->createResponse(self::OK));
             } elseif (\preg_match('/^RCPT TO:\s*<(.*)>/', $response, $matches)) {
+                /** @var array{0: non-empty-string, 1: string} $matches */
                 $protocol['BCC'][] = $matches[1];
                 $stream->sendData($this->createResponse(self::OK));
             } elseif (\str_starts_with($response, 'QUIT')) {

src/Traffic/Message/Headers.php

@@ -9,12 +9,15 @@
  */
 trait Headers
 {
-    /** @var array Map of all registered headers, as original name => array of values */
+    /** @var array<non-empty-string, non-empty-list<string>> Map of all registered headers */
     private array $headers = [];
 
-    /** @var array Map of lowercase header name => original name at registration */
+    /** @var array<non-empty-string, non-empty-string> Map of lowercase header name => original name at registration */
     private array $headerNames = [];
 
+    /**
+     * @return array<non-empty-string, list<string>>
+     */
     public function getHeaders(): array
     {
         return $this->headers;
@@ -26,7 +29,7 @@ public function hasHeader(string $header): bool
     }
 
     /**
-     * @return string[]
+     * @return list<string>
      */
     public function getHeader(string $header): array
     {
@@ -45,9 +48,10 @@ public function getHeaderLine(string $header): string
         return \implode(', ', $this->getHeader($header));
     }
 
-    public function withHeader(string $header, $value): static
+    public function withHeader(string $header, mixed $value): static
     {
         $value = $this->validateAndTrimHeader($header, $value);
+        /** @var non-empty-string $normalized */
         $normalized = \strtr($header, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
 
         $new = clone $this;
@@ -97,7 +101,9 @@ private function setHeaders(array $headers): void
                 // We must cast it back to a string in order to comply with validation.
                 $header = (string)$header;
             }
+
             $value = $this->validateAndTrimHeader($header, $value);
+            /** @var non-empty-string $normalized */
             $normalized = \strtr($header, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
             if (isset($this->headerNames[$normalized])) {
                 $header = $this->headerNames[$normalized];
@@ -126,8 +132,12 @@ private function setHeaders(array $headers): void
      * field-value  = *( ( %x21-7E / %x80-FF ) [ 1*( SP / HTAB ) ( %x21-7E / %x80-FF ) ] )
      *
      * @see https://tools.ietf.org/html/rfc7230#section-3.2.4
+     *
+     * @psalm-assert non-empty-string $header
+     *
+     * @return non-empty-list<string>
      */
-    private function validateAndTrimHeader(string $header, $values): array
+    private function validateAndTrimHeader(string $header, mixed $values): array
     {
         if (1 !== \preg_match("@^[!#$%&'*+.^_`|~0-9A-Za-z-]+$@D", $header)) {
             throw new \InvalidArgumentException('Header name must be an RFC 7230 compatible string');
@@ -170,17 +180,17 @@ private function validateAndTrimHeader(string $header, $values): array
     /**
      * List of header values.
      *
-     * @param array<string, list<non-empty-string>> $headers
+     * @param array<array-key, list<string>> $headers
      * @param non-empty-string $header
      *
-     * @return list<non-empty-string>
+     * @return list<string>
      */
     private static function findHeader(array $headers, string $header): array
     {
         $header = \strtr($header, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
         $result = [];
         foreach ($headers as $name => $values) {
-            if (\strtr($name, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz') === $header) {
+            if (\strtr((string) $name, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz') === $header) {
                 $result = [...$result, ...$values];
             }
         }

src/Traffic/Message/Multipart/Field.php

@@ -6,7 +6,7 @@
 
 /**
  * @psalm-type FieldDataArray = array{
- *     headers: array<string, non-empty-list<string>>,
+ *     headers: array<array-key, non-empty-list<string>>,
  *     name?: string,
  *     value: string
  * }
@@ -15,6 +15,9 @@
  */
 final class Field extends Part
 {
+    /**
+     * @param array<array-key, non-empty-list<string>> $headers
+     */
     public function __construct(array $headers, ?string $name = null, private string $value = '')
     {
         parent::__construct($headers, $name);
@@ -30,6 +33,7 @@ public static function fromArray(array $data): self
 
     /**
      * @return FieldDataArray
+     * @psalm-suppress ImplementedReturnTypeMismatch
      */
     public function jsonSerialize(): array
     {