Yoga debug info (#1253)

* fix SIMULATE_WEB_RESPONSE not imported #449 * Fix to make rangeMode update in right time * remove uncessary assert * Fix collection cell editing bug for iOS 9 & 10 * Revert "Fix collection cell editing bug for iOS 9 & 10" This reverts commit 06e18a1. * Add description method for yoga. * Fix comment
TextureGroup · Dec 10, 2018 · 1d4b4c7 · 1d4b4c7
1 parent 82b4d34
commit 1d4b4c7
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diff --git a/Source/ASDisplayNode+Beta.h b/Source/ASDisplayNode+Beta.h
@@ -210,6 +210,12 @@ AS_EXTERN void ASDisplayNodePerformBlockOnEveryYogaChild(ASDisplayNode * _Nullab
 
 @end
 
+@interface ASDisplayNode (YogaDebugging)
+
+- (NSString *)yogaTreeDescription;
+
+@end
+
 @interface ASLayoutElementStyle (Yoga)
 
 - (YGNodeRef)yogaNodeCreateIfNeeded;

diff --git a/Source/ASDisplayNode+Yoga.mm b/Source/ASDisplayNode+Yoga.mm
@@ -351,4 +351,20 @@ - (void)calculateLayoutFromYogaRoot:(ASSizeRange)rootConstrainedSize
 
 @end
 
+@implementation ASDisplayNode (YogaDebugging)
+
+- (NSString *)yogaTreeDescription {
+  return [self _yogaTreeDescription:@""];
+}
+
+- (NSString *)_yogaTreeDescription:(NSString *)indent {
+  auto subtree = [NSMutableString stringWithFormat:@"%@%@\n", indent, self.description];
+  for (ASDisplayNode *n in self.yogaChildren) {
+    [subtree appendString:[n _yogaTreeDescription:[indent stringByAppendingString:@"| "]]];
+  }
+  return subtree;
+}
+
+@end
+
 #endif /* YOGA */