allow dynamically changing configuration without restarting

src/Psalm/Internal/LanguageServer/ClientConfiguration.php

@@ -45,7 +45,7 @@ class ClientConfiguration
     /**
      * Provide Hover Requests or not
      */
-    public ?bool  $provideHover= null;
+    public ?bool $provideHover = null;
 
     /**
      * Provide Signature Help or not

src/Psalm/Internal/LanguageServer/LanguageClient.php

@@ -11,6 +11,8 @@ use Psalm\Internal\LanguageServer\Client\TextDocument as ClientTextDocument;
 use Psalm\Internal\LanguageServer\Client\Workspace as ClientWorkspace;
 
 use function is_null;
+use function json_decode;
+use function json_encode;
 
 /**
  * @internal
@@ -144,8 +146,39 @@ class LanguageClient
             return;
         }
 
-        if (!is_null($this->clientConfiguration->provideCompletion)) {
+        /** @var array */
-            //$this->server->project_analyzer->provide_completion = $this->clientConfiguration->provideCompletion;
+        $array = json_decode(json_encode($config), true);
+
+        if (isset($array['hideWarnings'])) {
+            $this->clientConfiguration->hideWarnings = (bool) $array['hideWarnings'];
+        }
+
+        if (isset($array['provideCompletion'])) {
+            $this->clientConfiguration->provideCompletion = (bool) $array['provideCompletion'];
+        }
+
+        if (isset($array['provideDefinition'])) {
+            $this->clientConfiguration->provideDefinition = (bool) $array['provideDefinition'];
+        }
+
+        if (isset($array['provideHover'])) {
+            $this->clientConfiguration->provideHover = (bool) $array['provideHover'];
+        }
+
+        if (isset($array['provideSignatureHelp'])) {
+            $this->clientConfiguration->provideSignatureHelp = (bool) $array['provideSignatureHelp'];
+        }
+
+        if (isset($array['provideCodeActions'])) {
+            $this->clientConfiguration->provideCodeActions = (bool) $array['provideCodeActions'];
+        }
+
+        if (isset($array['provideDiagnostics'])) {
+            $this->clientConfiguration->provideDiagnostics = (bool) $array['provideDiagnostics'];
+        }
+
+        if (isset($array['findUnusedVariables'])) {
+            $this->clientConfiguration->findUnusedVariables = (bool) $array['findUnusedVariables'];
         }
     }
 }

src/Psalm/Internal/LanguageServer/LanguageServer.php

@@ -109,6 +109,8 @@ class LanguageServer extends Dispatcher
      */
     public ?ServerWorkspace $workspace = null;
 
+    public ?ClientInfo $clientInfo = null;
+
     protected ProtocolReader $protocolReader;
 
     protected ProtocolWriter $protocolWriter;
@@ -426,6 +428,7 @@ class LanguageServer extends Dispatcher
         ?string $trace = null
         //?array $workspaceFolders = null //error in json-dispatcher
     ): Promise {
+        $this->clientInfo = $clientInfo;
         $this->clientCapabilities = $capabilities;
         $this->trace = $trace;
         return call(