Remove fillCSSNode method

Summary: fillCSSNode was only ever used in RCTShadowView to set the child count which is already performed in insert/remove subview calls and in RCTShadowText is was used to set the measure function which can be done in the initializer instead.

Reviewed By: majak, javache

Differential Revision: D3586418

fbshipit-source-id: de2155daf0f1702c8977bf23183a3b6a650d016b

Libraries/Text/RCTShadowText.m

@@ -61,6 +61,7 @@ static css_dim_t RCTMeasure(void *context, float width, css_measure_mode_t width
     _cachedTextStorageWidth = -1;
     _cachedTextStorageWidthMode = -1;
     _fontSizeMultiplier = 1.0;
+    self.cssNode->measure = RCTMeasure;
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(contentSizeMultiplierDidChange:)
                                                  name:RCTUIManagerWillUpdateViewsDueToContentSizeMultiplierChangeNotification
@@ -442,13 +443,6 @@ static css_dim_t RCTMeasure(void *context, float width, css_measure_mode_t width
   }
 }
 
-- (void)fillCSSNode:(css_node_t *)node
-{
-  [super fillCSSNode:node];
-  node->measure = RCTMeasure;
-  node->children_count = 0;
-}
-
 - (void)insertReactSubview:(RCTShadowView *)subview atIndex:(NSInteger)atIndex
 {
   [super insertReactSubview:subview atIndex:atIndex];

React/Views/RCTRootShadowView.m

@@ -49,7 +49,6 @@
 {
   [self applySizeConstraints];
 
-  [self fillCSSNode:self.cssNode];
   layoutNode(self.cssNode, CSS_UNDEFINED, CSS_UNDEFINED, CSS_DIRECTION_INHERIT);
 
   NSMutableSet<RCTShadowView *> *viewsWithNewFrame = [NSMutableSet set];

React/Views/RCTShadowView.h

@@ -186,7 +186,6 @@ typedef void (^RCTApplierBlock)(NSDictionary<NSNumber *, UIView *> *viewRegistry
 /**
  * The following are implementation details exposed to subclasses. Do not call them directly
  */
-- (void)fillCSSNode:(css_node_t *)node NS_REQUIRES_SUPER;
 - (void)dirtyLayout NS_REQUIRES_SUPER;
 - (BOOL)isLayoutDirty;
 

React/Views/RCTShadowView.m

@@ -89,11 +89,6 @@ static void RCTProcessMetaProps(const float metaProps[META_PROP_COUNT], float st
   : 0;
 }
 
-- (void)fillCSSNode:(css_node_t *)node
-{
-  node->children_count = (int)_reactSubviews.count;
-}
-
 // The absolute stuff is so that we can take into account our absolute position when rounding in order to
 // snap to the pixel grid. For example, say you have the following structure:
 //
@@ -253,7 +248,6 @@ static void RCTProcessMetaProps(const float metaProps[META_PROP_COUNT], float st
     _layoutLifecycle = RCTUpdateLifecycleDirtied;
   }
 
-  [self fillCSSNode:_cssNode];
   layoutNode(_cssNode, frame.size.width, frame.size.height, CSS_DIRECTION_INHERIT);
   [self applyLayoutNode:_cssNode viewsWithNewFrame:viewsWithNewFrame absolutePosition:absolutePosition];
 }
@@ -299,7 +293,6 @@ static void RCTProcessMetaProps(const float metaProps[META_PROP_COUNT], float st
     _cssNode->print = RCTPrint;
     _cssNode->get_child = RCTGetChild;
     _cssNode->is_dirty = RCTIsDirty;
-    [self fillCSSNode:_cssNode];
   }
   return self;
 }
@@ -637,7 +630,6 @@ RCT_STYLE_PROPERTY(FlexWrap, flexWrap, flex_wrap, css_wrap_type_t)
   if (_recomputePadding || _recomputeMargin || _recomputeBorder) {
     [self dirtyLayout];
   }
-  [self fillCSSNode:_cssNode];
   _recomputeMargin = NO;
   _recomputePadding = NO;
   _recomputeBorder = NO;