Fix CQS signal readability-implicit-bool-conversion in xplat/js/react-native-github/packages

Reviewed By: rshest

Differential Revision: D81565980

packages/react-native/React/Base/Surface/SurfaceHostingView/RCTSurfaceSizeMeasureMode.mm

@@ -18,17 +18,17 @@ void RCTSurfaceMinimumSizeAndMaximumSizeFromSizeAndSizeMeasureMode(
   *minimumSize = CGSizeZero;
   *maximumSize = CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX);
 
-  if (sizeMeasureMode & RCTSurfaceSizeMeasureModeWidthExact) {
+  if ((sizeMeasureMode & RCTSurfaceSizeMeasureModeWidthExact) != 0) {
     minimumSize->width = size.width;
     maximumSize->width = size.width;
-  } else if (sizeMeasureMode & RCTSurfaceSizeMeasureModeWidthAtMost) {
+  } else if ((sizeMeasureMode & RCTSurfaceSizeMeasureModeWidthAtMost) != 0) {
     maximumSize->width = size.width;
   }
 
-  if (sizeMeasureMode & RCTSurfaceSizeMeasureModeHeightExact) {
+  if ((sizeMeasureMode & RCTSurfaceSizeMeasureModeHeightExact) != 0) {
     minimumSize->height = size.height;
     maximumSize->height = size.height;
-  } else if (sizeMeasureMode & RCTSurfaceSizeMeasureModeHeightAtMost) {
+  } else if ((sizeMeasureMode & RCTSurfaceSizeMeasureModeHeightAtMost) != 0) {
     maximumSize->height = size.height;
   }
 }

packages/react-native/React/CoreModules/RCTActionSheetManager.mm

@@ -31,7 +31,7 @@ using namespace facebook::react;
 - (instancetype)init
 {
   self = [super init];
-  if (self) {
+  if (self != nullptr) {
     _alertControllers = [NSMutableArray new];
   }
   return self;
@@ -53,7 +53,7 @@ RCT_EXPORT_MODULE()
   alertController.modalPresentationStyle = UIModalPresentationPopover;
   UIView *sourceView = parentViewController.view;
 
-  if (anchorViewTag) {
+  if (anchorViewTag != nullptr) {
     sourceView = [self.viewRegistry_DEPRECATED viewForReactTag:anchorViewTag];
   } else {
     alertController.popoverPresentationController.permittedArrowDirections = 0;
@@ -166,12 +166,12 @@ RCT_EXPORT_METHOD(showActionSheetWithOptions
       index++;
     }
 
-    if (disabledButtonIndices) {
+    if (disabledButtonIndices != nullptr) {
       for (NSNumber *disabledButtonIndex in disabledButtonIndices) {
         if ([disabledButtonIndex integerValue] < buttons.count) {
           UIAlertAction *action = alertController.actions[[disabledButtonIndex integerValue]];
           [action setEnabled:false];
-          if (disabledButtonTintColor) {
+          if (disabledButtonTintColor != nullptr) {
             [action setValue:disabledButtonTintColor forKey:@"titleTextColor"];
           }
         } else {
@@ -235,14 +235,14 @@ RCT_EXPORT_METHOD(showShareActionSheetWithOptions
   UIColor *tintColor = [RCTConvert UIColor:options.tintColor() ? @(*options.tintColor()) : nil];
 
   dispatch_async(dispatch_get_main_queue(), ^{
-    if (message) {
+    if (message != nullptr) {
       [items addObject:message];
     }
-    if (URL) {
+    if (URL != nullptr) {
       if ([URL.scheme.lowercaseString isEqualToString:@"data"]) {
         NSError *error;
         NSData *data = [NSData dataWithContentsOfURL:URL options:(NSDataReadingOptions)0 error:&error];
-        if (!data) {
+        if (data == nullptr) {
           failureCallback(@[ RCTJSErrorFromNSError(error) ]);
           return;
         }
@@ -258,17 +258,17 @@ RCT_EXPORT_METHOD(showShareActionSheetWithOptions
 
     UIActivityViewController *shareController = [[UIActivityViewController alloc] initWithActivityItems:items
                                                                                   applicationActivities:nil];
-    if (subject) {
+    if (subject != nullptr) {
       [shareController setValue:subject forKey:@"subject"];
     }
-    if (excludedActivityTypes) {
+    if (excludedActivityTypes != nullptr) {
       shareController.excludedActivityTypes = excludedActivityTypes;
     }
 
     UIViewController *controller = RCTPresentedViewController();
     shareController.completionWithItemsHandler =
         ^(NSString *activityType, BOOL completed, __unused NSArray *returnedItems, NSError *activityError) {
-          if (activityError) {
+          if (activityError != nullptr) {
             failureCallback(@[ RCTJSErrorFromNSError(activityError) ]);
           } else if (completed || activityType == nil) {
             successCallback(@[ @(completed), RCTNullIfNil(activityType) ]);

packages/react-native/React/CoreModules/RCTAlertController.mm

@@ -27,7 +27,7 @@
       _alertWindow = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
     }
 
-    if (_alertWindow) {
+    if (_alertWindow != nullptr) {
       _alertWindow.rootViewController = [UIViewController new];
       _alertWindow.windowLevel = UIWindowLevelAlert + 1;
     }
@@ -41,7 +41,7 @@
   UIUserInterfaceStyle style = self.overrideUserInterfaceStyle;
   if (style == UIUserInterfaceStyleUnspecified) {
     UIUserInterfaceStyle overriddenStyle = RCTKeyWindow().overrideUserInterfaceStyle;
-    style = overriddenStyle ? overriddenStyle : UIUserInterfaceStyleUnspecified;
+    style = (overriddenStyle != 0) ? overriddenStyle : UIUserInterfaceStyleUnspecified;
   }
 
   self.overrideUserInterfaceStyle = style;

packages/react-native/React/CoreModules/RCTAlertManager.mm

@@ -86,7 +86,7 @@ RCT_EXPORT_METHOD(alertWithArgs : (JS::NativeAlertManager::Args &)args callback
   UIKeyboardType keyboardType = [RCTConvert UIKeyboardType:args.keyboardType()];
   UIUserInterfaceStyle userInterfaceStyle = [RCTConvert UIUserInterfaceStyle:args.userInterfaceStyle()];
 
-  if (!title && !message) {
+  if ((title == nullptr) && (message == nullptr)) {
     RCTLogError(@"Must specify either an alert title, or message, or both");
     return;
   }
@@ -193,7 +193,7 @@ RCT_EXPORT_METHOD(alertWithArgs : (JS::NativeAlertManager::Args &)args callback
       }
     }
 
-    if (!self->_alertControllers) {
+    if (self->_alertControllers == nullptr) {
       self->_alertControllers = [NSHashTable weakObjectsHashTable];
     }
     [self->_alertControllers addObject:alertController];

packages/react-native/React/CoreModules/RCTDevMenu.mm

@@ -47,7 +47,7 @@ NSString *const RCTShowDevMenuNotification = @"RCTShowDevMenuNotification";
 
 - (instancetype)initWithTitleBlock:(RCTDevMenuItemTitleBlock)titleBlock handler:(dispatch_block_t)handler
 {
-  if ((self = [super init])) {
+  if ((self = [super init]) != nullptr) {
     _titleBlock = [titleBlock copy];
     _handler = [handler copy];
   }
@@ -72,14 +72,14 @@ RCT_NOT_IMPLEMENTED(-(instancetype)init)
 
 - (void)callHandler
 {
-  if (_handler) {
+  if (_handler != nullptr) {
     _handler();
   }
 }
 
 - (NSString *)title
 {
-  if (_titleBlock) {
+  if (_titleBlock != nullptr) {
     return _titleBlock();
   }
   return nil;
@@ -120,7 +120,7 @@ RCT_EXPORT_MODULE()
 
 - (instancetype)init
 {
-  if ((self = [super init])) {
+  if ((self = [super init]) != nullptr) {
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(showOnShake)
                                                  name:RCTShowDevMenuNotification
@@ -214,7 +214,7 @@ RCT_EXPORT_MODULE()
   if (_actionSheet.isBeingPresented || _actionSheet.beingDismissed) {
     return;
   }
-  if (_actionSheet) {
+  if (_actionSheet != nullptr) {
     [_actionSheet dismissViewControllerAnimated:YES
                                      completion:^(void) {
                                        self->_actionSheet = nil;
@@ -379,7 +379,7 @@ RCT_EXPORT_MODULE()
 
 RCT_EXPORT_METHOD(show)
 {
-  if (_actionSheet || RCTRunningInAppExtension()) {
+  if ((_actionSheet != nullptr) || RCTRunningInAppExtension()) {
     return;
   }
 
@@ -412,7 +412,7 @@ RCT_EXPORT_METHOD(show)
 - (RCTDevMenuAlertActionHandler)alertActionHandlerForDevItem:(RCTDevMenuItem *__nullable)item
 {
   return ^(__unused UIAlertAction *action) {
-    if (item) {
+    if (item != nullptr) {
       [item callHandler];
     }
 

packages/react-native/React/CoreModules/RCTEventDispatcher.mm

@@ -71,12 +71,14 @@ RCT_EXPORT_MODULE()
 {
   [_callableJSModules invokeModule:@"RCTNativeAppEventEmitter"
                             method:@"emit"
-                          withArgs:body ? @[ name, body ] : @[ name ]];
+                          withArgs:(body != nullptr) ? @[ name, body ] : @[ name ]];
 }
 
 - (void)sendDeviceEventWithName:(NSString *)name body:(id)body
 {
-  [_callableJSModules invokeModule:@"RCTDeviceEventEmitter" method:@"emit" withArgs:body ? @[ name, body ] : @[ name ]];
+  [_callableJSModules invokeModule:@"RCTDeviceEventEmitter"
+                            method:@"emit"
+                          withArgs:(body != nullptr) ? @[ name, body ] : @[ name ]];
 }
 
 - (void)sendTextEventWithType:(RCTTextEventType)type
@@ -91,13 +93,13 @@ RCT_EXPORT_MODULE()
     @"eventCount" : @(eventCount),
   }];
 
-  if (text) {
+  if (text != nullptr) {
     // We copy the string here because if it's a mutable string it may get released before we dispatch the event on a
     // different thread, causing a crash.
     body[@"text"] = [text copy];
   }
 
-  if (key) {
+  if (key != nullptr) {
     if (key.length == 0) {
       key = @"Backspace"; // backspace
     } else {
@@ -142,7 +144,7 @@ RCT_EXPORT_MODULE()
   if (event.canCoalesce) {
     eventID = RCTGetEventID(event.viewTag, event.eventName, event.coalescingKey);
     id<RCTEvent> previousEvent = _events[eventID];
-    if (previousEvent) {
+    if (previousEvent != nullptr) {
       event = [previousEvent coalesceWithEvent:event];
     } else {
       [_eventQueue addObject:eventID];
@@ -173,13 +175,13 @@ RCT_EXPORT_MODULE()
   [_eventQueueLock unlock];
 
   if (scheduleEventsDispatch) {
-    if (_bridge) {
+    if (_bridge != nullptr) {
       [_bridge
           dispatchBlock:^{
             [self flushEventsQueue];
           }
                   queue:RCTJSThread];
-    } else if (_dispatchToJSThread) {
+    } else if (_dispatchToJSThread != nullptr) {
       _dispatchToJSThread(^{
         [self flushEventsQueue];
       });
@@ -236,7 +238,7 @@ RCT_EXPORT_MODULE()
 {
   NSDictionary *userInfo = notification.userInfo;
   id<RCTEvent> event = [userInfo objectForKey:@"event"];
-  if (event) {
+  if (event != nullptr) {
     [self notifyObserversOfEvent:event];
   }
 }

packages/react-native/React/CoreModules/RCTExceptionsManager.mm

@@ -30,7 +30,7 @@ RCT_EXPORT_MODULE()
 
 - (instancetype)initWithDelegate:(id<RCTExceptionsManagerDelegate>)delegate
 {
-  if ((self = [self init])) {
+  if ((self = [self init]) != nullptr) {
     _delegate = delegate;
   }
   return self;
@@ -46,7 +46,7 @@ RCT_EXPORT_MODULE()
     [redbox showErrorMessage:message withStack:stack errorCookie:(int)exceptionId];
   }
 
-  if (_delegate) {
+  if (_delegate != nullptr) {
     [_delegate handleSoftJSExceptionWithMessage:message
                                           stack:stack
                                     exceptionId:[NSNumber numberWithDouble:exceptionId]
@@ -64,7 +64,7 @@ RCT_EXPORT_MODULE()
     [redbox showErrorMessage:message withStack:stack errorCookie:(int)exceptionId];
   }
 
-  if (_delegate) {
+  if (_delegate != nullptr) {
     [_delegate handleFatalJSExceptionWithMessage:message
                                            stack:stack
                                      exceptionId:[NSNumber numberWithDouble:exceptionId]
@@ -107,13 +107,13 @@ RCT_EXPORT_METHOD(reportException : (JS::NativeExceptionsManager::ExceptionData
 {
   NSMutableDictionary<NSString *, id> *mutableErrorData = [NSMutableDictionary new];
   mutableErrorData[@"message"] = data.message();
-  if (data.originalMessage()) {
+  if (data.originalMessage() != nullptr) {
     mutableErrorData[@"originalMessage"] = data.originalMessage();
   }
-  if (data.name()) {
+  if (data.name() != nullptr) {
     mutableErrorData[@"name"] = data.name();
   }
-  if (data.componentStack()) {
+  if (data.componentStack() != nullptr) {
     mutableErrorData[@"componentStack"] = data.componentStack();
   }
 
@@ -141,7 +141,7 @@ RCT_EXPORT_METHOD(reportException : (JS::NativeExceptionsManager::ExceptionData
   mutableErrorData[@"id"] = @(data.id_());
   mutableErrorData[@"isFatal"] = @(data.isFatal());
 
-  if (data.extraData()) {
+  if (data.extraData() != nullptr) {
     mutableErrorData[@"extraData"] = data.extraData();
   }
 

packages/react-native/React/CoreModules/RCTFPSGraph.mm

@@ -37,7 +37,7 @@
 
 - (instancetype)initWithFrame:(CGRect)frame color:(UIColor *)color
 {
-  if ((self = [super initWithFrame:frame])) {
+  if ((self = [super initWithFrame:frame]) != nullptr) {
     _frameCount = -1;
     _prevTime = -1;
     _maxFPS = 0;
@@ -64,7 +64,7 @@ RCT_NOT_IMPLEMENTED(-(instancetype)initWithCoder : (NSCoder *)aDecoder)
 
 - (CAShapeLayer *)graph
 {
-  if (!_graph) {
+  if (_graph == nullptr) {
     _graph = [CAShapeLayer new];
     _graph.frame = self.bounds;
     _graph.backgroundColor = [_color colorWithAlphaComponent:0.2].CGColor;
@@ -76,7 +76,7 @@ RCT_NOT_IMPLEMENTED(-(instancetype)initWithCoder : (NSCoder *)aDecoder)
 
 - (UILabel *)label
 {
-  if (!_label) {
+  if (_label == nullptr) {
     _label = [[UILabel alloc] initWithFrame:self.bounds];
     _label.font = [UIFont boldSystemFontOfSize:13];
     _label.textAlignment = NSTextAlignmentCenter;

packages/react-native/React/CoreModules/RCTLogBox.mm

@@ -45,23 +45,23 @@ RCT_EXPORT_METHOD(show)
     __weak RCTLogBox *weakSelf = self;
     dispatch_async(dispatch_get_main_queue(), ^{
       __strong RCTLogBox *strongSelf = weakSelf;
-      if (!strongSelf) {
+      if (strongSelf == nullptr) {
         return;
       }
 
-      if (strongSelf->_view) {
+      if (strongSelf->_view != nullptr) {
         [strongSelf->_view show];
         return;
       }
 
-      if (strongSelf->_bridgelessSurfacePresenter) {
+      if (strongSelf->_bridgelessSurfacePresenter != nullptr) {
         strongSelf->_view = [[RCTLogBoxView alloc] initWithWindow:RCTKeyWindow()
                                                  surfacePresenter:strongSelf->_bridgelessSurfacePresenter];
         [strongSelf->_view show];
       }
 #ifndef RCT_FIT_RM_OLD_RUNTIME
-      else if (strongSelf->_bridge && strongSelf->_bridge.valid) {
-        if (strongSelf->_bridge.surfacePresenter) {
+      else if ((strongSelf->_bridge != nullptr) && strongSelf->_bridge.valid) {
+        if (strongSelf->_bridge.surfacePresenter != nullptr) {
           strongSelf->_view = [[RCTLogBoxView alloc] initWithWindow:RCTKeyWindow()
                                                    surfacePresenter:strongSelf->_bridge.surfacePresenter];
         } else {
@@ -80,7 +80,7 @@ RCT_EXPORT_METHOD(hide)
     __weak RCTLogBox *weakSelf = self;
     dispatch_async(dispatch_get_main_queue(), ^{
       __strong RCTLogBox *strongSelf = weakSelf;
-      if (!strongSelf) {
+      if (strongSelf == nullptr) {
         return;
       }
       [strongSelf->_view setHidden:YES];

packages/react-native/React/CoreModules/RCTLogBoxView.mm

@@ -19,7 +19,7 @@
 
 - (instancetype)initWithFrame:(CGRect)frame
 {
-  if ((self = [super initWithFrame:frame])) {
+  if ((self = [super initWithFrame:frame]) != nullptr) {
     self.windowLevel = UIWindowLevelStatusBar - 1;
     self.backgroundColor = [UIColor clearColor];
   }

packages/react-native/React/CoreModules/RCTPerfMonitor.mm

@@ -134,7 +134,7 @@ RCT_EXPORT_MODULE()
 #if __has_include(<React/RCTDevMenu.h>)
 - (RCTDevMenuItem *)devMenuItem
 {
-  if (!_devMenuItem) {
+  if (_devMenuItem == nullptr) {
     __weak __typeof__(self) weakSelf = self;
     __weak RCTDevSettings *devSettings = [self->_moduleRegistry moduleForName:"DevSettings"];
     if (devSettings.isPerfMonitorShown) {
@@ -161,7 +161,7 @@ RCT_EXPORT_MODULE()
 
 - (UIPanGestureRecognizer *)gestureRecognizer
 {
-  if (!_gestureRecognizer) {
+  if (_gestureRecognizer == nullptr) {
     _gestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(gesture:)];
   }
 
@@ -170,7 +170,7 @@ RCT_EXPORT_MODULE()
 
 - (UIView *)container
 {
-  if (!_container) {
+  if (_container == nullptr) {
     UIEdgeInsets safeInsets = RCTKeyWindow().safeAreaInsets;
 
     _container =
@@ -188,7 +188,7 @@ RCT_EXPORT_MODULE()
 
 - (UILabel *)memory
 {
-  if (!_memory) {
+  if (_memory == nullptr) {
     _memory = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 44, RCTPerfMonitorBarHeight)];
     _memory.font = [UIFont systemFontOfSize:12];
     _memory.numberOfLines = 3;
@@ -200,7 +200,7 @@ RCT_EXPORT_MODULE()
 
 - (UILabel *)heap
 {
-  if (!_heap) {
+  if (_heap == nullptr) {
     _heap = [[UILabel alloc] initWithFrame:CGRectMake(44, 0, 44, RCTPerfMonitorBarHeight)];
     _heap.font = [UIFont systemFontOfSize:12];
     _heap.numberOfLines = 3;
@@ -212,7 +212,7 @@ RCT_EXPORT_MODULE()
 
 - (UILabel *)views
 {
-  if (!_views) {
+  if (_views == nullptr) {
     _views = [[UILabel alloc] initWithFrame:CGRectMake(88, 0, 44, RCTPerfMonitorBarHeight)];
     _views.font = [UIFont systemFontOfSize:12];
     _views.numberOfLines = 3;
@@ -224,7 +224,7 @@ RCT_EXPORT_MODULE()
 
 - (RCTFPSGraph *)uiGraph
 {
-  if (!_uiGraph) {
+  if (_uiGraph == nullptr) {
     _uiGraph = [[RCTFPSGraph alloc] initWithFrame:CGRectMake(134, 14, 40, 30) color:[UIColor lightGrayColor]];
   }
   return _uiGraph;
@@ -232,7 +232,7 @@ RCT_EXPORT_MODULE()
 
 - (RCTFPSGraph *)jsGraph
 {
-  if (!_jsGraph) {
+  if (_jsGraph == nullptr) {
     _jsGraph = [[RCTFPSGraph alloc] initWithFrame:CGRectMake(178, 14, 40, 30) color:[UIColor lightGrayColor]];
   }
   return _jsGraph;
@@ -240,7 +240,7 @@ RCT_EXPORT_MODULE()
 
 - (UILabel *)uiGraphLabel
 {
-  if (!_uiGraphLabel) {
+  if (_uiGraphLabel == nullptr) {
     _uiGraphLabel = [[UILabel alloc] initWithFrame:CGRectMake(134, 3, 40, 10)];
     _uiGraphLabel.font = [UIFont systemFontOfSize:11];
     _uiGraphLabel.textAlignment = NSTextAlignmentCenter;
@@ -252,7 +252,7 @@ RCT_EXPORT_MODULE()
 
 - (UILabel *)jsGraphLabel
 {
-  if (!_jsGraphLabel) {
+  if (_jsGraphLabel == nullptr) {
     _jsGraphLabel = [[UILabel alloc] initWithFrame:CGRectMake(178, 3, 38, 10)];
     _jsGraphLabel.font = [UIFont systemFontOfSize:11];
     _jsGraphLabel.textAlignment = NSTextAlignmentCenter;
@@ -264,7 +264,7 @@ RCT_EXPORT_MODULE()
 
 - (UITableView *)metrics
 {
-  if (!_metrics) {
+  if (_metrics == nullptr) {
     _metrics = [[UITableView alloc] initWithFrame:CGRectMake(
                                                       0,
                                                       RCTPerfMonitorBarHeight,
@@ -281,7 +281,7 @@ RCT_EXPORT_MODULE()
 
 - (void)show
 {
-  if (_container) {
+  if (_container != nullptr) {
     return;
   }
 
@@ -317,7 +317,7 @@ RCT_EXPORT_MODULE()
 
 - (void)hide
 {
-  if (!_container) {
+  if (_container == nullptr) {
     return;
   }
 
@@ -360,7 +360,7 @@ RCT_EXPORT_MODULE()
   dispatch_io_set_low_water(_io, 20);
 
   dispatch_io_read(_io, 0, SIZE_MAX, _queue, ^(__unused bool done, dispatch_data_t data, __unused int error) {
-    if (!data) {
+    if (data == nullptr) {
       return;
     }
 
@@ -391,7 +391,7 @@ RCT_EXPORT_MODULE()
     GCRegex = [NSRegularExpression regularExpressionWithPattern:pattern options:0 error:nil];
   });
 
-  if (_remaining) {
+  if (_remaining != nullptr) {
     log = [_remaining stringByAppendingString:log];
     _remaining = nil;
   }
@@ -404,7 +404,7 @@ RCT_EXPORT_MODULE()
 
   for (NSString *line in lines) {
     NSTextCheckingResult *match = [GCRegex firstMatchInString:line options:0 range:NSMakeRange(0, line.length)];
-    if (match) {
+    if (match != nullptr) {
       NSString *heapSizeStr = [line substringWithRange:[match rangeAtIndex:2]];
       _heapSize = [heapSizeStr integerValue];
     }
@@ -417,7 +417,7 @@ RCT_EXPORT_MODULE()
   NSUInteger viewCount = views.count;
   NSUInteger visibleViewCount = 0;
   for (UIView *view in views.allValues) {
-    if (view.window || view.superview.window) {
+    if ((view.window != nullptr) || (view.superview.window != nullptr)) {
       visibleViewCount++;
     }
   }
@@ -436,7 +436,7 @@ RCT_EXPORT_MODULE()
   __weak __typeof__(self) weakSelf = self;
   dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
     __strong __typeof__(weakSelf) strongSelf = weakSelf;
-    if (strongSelf && strongSelf->_container.superview) {
+    if ((strongSelf != nullptr) && (strongSelf->_container.superview != nullptr)) {
       [strongSelf updateStats];
     }
   });
@@ -512,7 +512,7 @@ RCT_EXPORT_MODULE()
   UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:RCTPerfMonitorCellIdentifier
                                                           forIndexPath:indexPath];
 
-  if (!cell) {
+  if (cell == nullptr) {
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                   reuseIdentifier:RCTPerfMonitorCellIdentifier];
   }