Add -didExitHierarchy internal hook.

secretiverhyme · secretiverhyme · commit 2d26249cb040 · 2014-10-20T13:47:31.000-07:00
diff --git a/AsyncDisplayKit/ASDisplayNode.mm b/AsyncDisplayKit/ASDisplayNode.mm
@@ -210,6 +210,11 @@ - (BOOL)__shouldSize
   return YES;
 }
 
+- (void)__exitedHierarchy
+{
+
+}
+
 - (void)_loadViewOrLayerIsLayerBacked:(BOOL)isLayerBacked
 {
   ASDN::MutexLocker l(_propertyLock);
@@ -1116,6 +1121,8 @@ - (void)didExitHierarchy
   ASDisplayNodeAssertMainThread();
   ASDisplayNodeAssert(_flags.isInExitHierarchy, @"You should never call -didExitHierarchy directly. Appearance is automatically managed by ASDisplayNode");
   ASDisplayNodeAssert(!_flags.isInEnterHierarchy, @"ASDisplayNode inconsistency. __enterHierarchy and __exitHierarchy are mutually exclusive");
+
+  [self __exitedHierarchy];
 }
 
 - (void)reclaimMemory
diff --git a/AsyncDisplayKit/Private/ASDisplayNodeInternal.h b/AsyncDisplayKit/Private/ASDisplayNodeInternal.h
@@ -90,6 +90,7 @@ BOOL ASDisplayNodeSubclassOverridesSelector(Class subclass, SEL selector);
 // Swizzle to extend the builtin functionality with custom logic
 - (BOOL)__shouldLoadViewOrLayer;
 - (BOOL)__shouldSize;
+- (void)__exitedHierarchy;
 
 - (void)__layout;
 - (void)__setSupernode:(ASDisplayNode *)supernode;

Original file line number	Diff line number	Diff line change
`@@ -210,6 +210,11 @@ - (BOOL)__shouldSize`
`210`	`210`	`return YES;`
`211`	`211`	`}`
`212`	`212`
	`213`	`+- (void)__exitedHierarchy`
	`214`	`+{`
	`215`	`+`
	`216`	`+}`
	`217`	`+`
`213`	`218`	`- (void)_loadViewOrLayerIsLayerBacked:(BOOL)isLayerBacked`
`214`	`219`	`{`
`215`	`220`	`ASDN::MutexLocker l(_propertyLock);`
`@@ -1116,6 +1121,8 @@ - (void)didExitHierarchy`
`1116`	`1121`	`ASDisplayNodeAssertMainThread();`
`1117`	`1122`	`ASDisplayNodeAssert(_flags.isInExitHierarchy, @"You should never call -didExitHierarchy directly. Appearance is automatically managed by ASDisplayNode");`
`1118`	`1123`	`ASDisplayNodeAssert(!_flags.isInEnterHierarchy, @"ASDisplayNode inconsistency. __enterHierarchy and __exitHierarchy are mutually exclusive");`
	`1124`	`+`
	`1125`	`+ [self __exitedHierarchy];`
`1119`	`1126`	`}`
`1120`	`1127`
`1121`	`1128`	`- (void)reclaimMemory`