iOS dialog provider: drop legacy NSAutoreleasePool pattern

modules/gui/ios_dialog_provider/dialogProvider.m

@@ -161,40 +161,44 @@ void CloseIntf(vlc_object_t *p_this)
  *****************************************************************************/
 static int DisplayError(vlc_object_t *p_this, const char *type, vlc_value_t previous, vlc_value_t value, void *data)
 {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+    @autoreleasepool {
         dialog_fatal_t *dialog = value.p_address;
         intf_thread_t *p_intf = (intf_thread_t*) p_this;
         intf_sys_t *sys = p_intf->p_sys;
-    [sys->displayer performSelectorOnMainThread:@selector(displayError:) withObject:DictFromDialogFatal(dialog) waitUntilDone:NO];
-    [pool release];
+        [sys->displayer performSelectorOnMainThread:@selector(displayError:)
+                                         withObject:DictFromDialogFatal(dialog)
+                                      waitUntilDone:NO];
         return VLC_SUCCESS;
+    }
 }
 
 static int DisplayCritical(vlc_object_t *p_this, const char *type, vlc_value_t previous, vlc_value_t value, void *data)
 {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+    @autoreleasepool {
         dialog_fatal_t *dialog = value.p_address;
         intf_thread_t *p_intf = (intf_thread_t*) p_this;
         intf_sys_t *sys = p_intf->p_sys;
-    [sys->displayer performSelectorOnMainThread:@selector(displayCritical:) withObject:DictFromDialogFatal(dialog) waitUntilDone:NO];
-    [pool release];
+        [sys->displayer performSelectorOnMainThread:@selector(displayCritical:)
+                                         withObject:DictFromDialogFatal(dialog)
+                                      waitUntilDone:NO];
         return VLC_SUCCESS;
+    }
 }
 
 static int DisplayQuestion(vlc_object_t *p_this, const char *type, vlc_value_t previous, vlc_value_t value, void *data)
 {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+    @autoreleasepool {
         dialog_question_t *dialog = value.p_address;
         intf_thread_t *p_intf = (intf_thread_t*) p_this;
         intf_sys_t *sys = p_intf->p_sys;
         dialog->answer = [[sys->displayer displayQuestion:DictFromDialogQuestion(dialog)] intValue];
-    [pool release];
         return VLC_SUCCESS;
+    }
 }
 
 static int DisplayLogin(vlc_object_t *p_this, const char *type, vlc_value_t previous, vlc_value_t value, void *data)
 {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+    @autoreleasepool {
         dialog_login_t *dialog = value.p_address;
         intf_thread_t *p_intf = (intf_thread_t*) p_this;
         intf_sys_t *sys = p_intf->p_sys;
@@ -207,8 +211,8 @@ static int DisplayLogin(vlc_object_t *p_this, const char *type, vlc_value_t prev
             if (password != NULL && password.length > 0)
                 *dialog->password = strdup([password UTF8String]);
         }
-    [pool release];
         return VLC_SUCCESS;
+    }
 }
 
 @implementation VLCDialogDisplayer