mark packages as final

Author: azjezz

src/Nuxed/Asset/Package.hack

@@ -5,12 +5,13 @@ use namespace HH\Lib\Str;
 /**
  * Basic package that adds a version to asset URLs.
  */
+<<__Sealed(UrlPackage::class, PathPackage::class)>>
 class Package implements IPackage {
-private Context\IContext $context;
+  private Context\IContext $context;
 
   public function __construct(
     private VersionStrategy\IVersionStrategy $versionStrategy,
-    ?Context\IContext $context = null
+    ?Context\IContext $context = null,
   ) {
     $this->context = $context ?? new Context\NullContext();
   }

src/Nuxed/Asset/PathPackage.hack

@@ -12,7 +12,7 @@ use type Nuxed\Asset\VersionStrategy\IVersionStrategy;
  * allow a website to be hosted easily under any given path under the Web
  * Server root directory.
  */
-class PathPackage extends Package {
+final class PathPackage extends Package {
   private string $basePath;
 
   /**

src/Nuxed/Asset/UrlPackage.hack

@@ -16,7 +16,7 @@ use namespace HH\Lib\{C, Str};
  *  * For HTTPs requests, it chooses between HTTPs base URLs and relative protocol URLs
  *    or falls back to any base URL if no secure ones are available.
  */
-class UrlPackage extends Package {
+final class UrlPackage extends Package {
   private vec<string> $baseUrls = vec[];
   private ?UrlPackage $sslPackage;