chore: add some native return type declarations

as directed by deprecation messages, to avoid errors in the future.

Author: boite

src/Model/User.php

@@ -37,7 +37,7 @@ final class User implements
 
     private $name;
     private $password = '';
-    private $roles;
+    private $roles = [];
     private $salt = '';
 
     private $createdAt;
@@ -58,7 +58,6 @@ public function __construct(string $name)
         $this->accountNonExpired = true;
         $this->credentialsNonExpired = true;
         $this->accountNonLocked = true;
-        $this->roles = array();
         $this->salt = 'KJH6212kjwek_fj23D01-239.1023fkjdsj^k2hdfssfjk!h234uiy4324';
     }
 
@@ -105,7 +104,7 @@ public function setLastSeenAt($lastSeenAt)
     /**
      * {@inheritdoc}
      */
-    public function getRoles()
+    public function getRoles(): array
     {
         return $this->roles;
     }
@@ -135,7 +134,7 @@ public function getSalt(): ?string
     /**
      * {@inheritdoc}
      */
-    public function getUsername()
+    public function getUsername(): string
     {
         return $this->getName();
     }

src/UserProvider.php

@@ -32,7 +32,7 @@ public function setRoleProvider(RoleProviderInterface $roleProvider)
         $this->roleProvider = $roleProvider;
     }
 
-    public function loadUserByUsername($username)
+    public function loadUserByUsername($username): UserInterface
     {
         return $this->loadUserByIdentifier((string) $username);
     }
@@ -64,7 +64,7 @@ public function loadUserByIdentifier(string $identifier): UserInterface
         return $user;
     }
 
-    public function refreshUser(UserInterface $user)
+    public function refreshUser(UserInterface $user): UserInterface
     {
         if (!$user instanceof User) {
             throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', get_class($user)));
@@ -77,7 +77,7 @@ public function refreshUser(UserInterface $user)
         return $this->loadUserByIdentifier($user->getUserIdentifier());
     }
 
-    public function supportsClass($class)
+    public function supportsClass($class): bool
     {
         return User::class === $class;
     }