Quick fixes to auto anonymous upgrade

Author: protocol86

FirebaseAuthUI/FUIAuth.h

@@ -204,8 +204,7 @@ __attribute__((deprecated("Instead use authUI:didSignInWithAuthDataResult:error:
 /** @property shouldAutoUpgradeAnonymousUsers
     @brief Whether to enable auto upgrading of anonymous accounts, defaults to NO.
  */
-@property(nonatomic, assign, getter=shouldAutoUpgradeAnonymousUsers) BOOL
-    shouldAutoUpgradeAnonymousUsers;
+@property(nonatomic, assign, getter=shouldAutoUpgradeAnonymousUsers) BOOL autoUpgradeAnonymousUsers;
 
 /** @property privacyPolicyURL
     @brief The URL of your app's Privacy Policy. If not nil, a privacy policy notice is

FirebaseAuthUI/FUIAuthBaseViewController.m

@@ -256,14 +256,18 @@ + (void)showAlertWithTitle:(nullable NSString *)title
       [UIAlertAction actionWithTitle:actionTitle
                                style:UIAlertActionStyleDefault
                              handler:^(UIAlertAction *_Nonnull action) {
-        actionHandler();
+        if (actionHandler) {
+          actionHandler();
+        }
       }];
   [alertController addAction:okAction];
   UIAlertAction *cancelAction =
       [UIAlertAction actionWithTitle:FUILocalizedString(kStr_Cancel)
                                style:UIAlertActionStyleCancel
                                handler:^(UIAlertAction * _Nonnull action) {
-        cancelHandler();
+        if (cancelHandler) {
+          cancelHandler();
+        }
       }];
   [alertController addAction:cancelAction];
   [presentingViewController presentViewController:alertController animated:YES completion:nil];
@@ -299,14 +303,18 @@ + (void)showSignInAlertWithEmail:(NSString *)email
       [UIAlertAction actionWithTitle:providerSignInLabel
                                style:UIAlertActionStyleDefault
                              handler:^(UIAlertAction *_Nonnull action) {
-        signinHandler();
+        if (signinHandler) {
+          signinHandler();
+        }
       }];
   [alertController addAction:signInAction];
   UIAlertAction *cancelAction =
       [UIAlertAction actionWithTitle:FUILocalizedString(kStr_Cancel)
                                style:UIAlertActionStyleCancel
                                handler:^(UIAlertAction * _Nonnull action) {
-        cancelHandler();
+        if (cancelHandler) {
+          cancelHandler();
+        }
       }];
   [alertController addAction:cancelAction];
   [presentingViewController presentViewController:alertController animated:YES completion:nil];

samples/objc/FirebaseUI-demo-objc/Samples/Auth/FUIAuthViewController.m

@@ -231,7 +231,7 @@ - (IBAction)onAuthUIDelegateChanged:(UISwitch *)sender {
 
 - (IBAction)onAuthorization:(id)sender {
   if (!_auth.currentUser || _auth.currentUser.isAnonymous) {
-    FUIAuth.defaultAuthUI.shouldAutoUpgradeAnonymousUsers = YES;
+    FUIAuth.defaultAuthUI.autoUpgradeAnonymousUsers = YES;
     _authUI.providers = [self getListOfIDPs];
     _authUI.signInWithEmailHidden = ![self isEmailEnabled];