From df730d6771d07b663ea4a2ef63f0a5a8088fb2d3 Mon Sep 17 00:00:00 2001
From: Sal <Sj.Randazzo@gmail.com>
Date: Thu, 13 Aug 2015 13:53:08 -0400
Subject: [PATCH] Return CGSizeZero if ASTextNode's text length or attributed
 string is nil

---
 AsyncDisplayKit/Details/ASTextNodeRenderer.mm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/AsyncDisplayKit/Details/ASTextNodeRenderer.mm b/AsyncDisplayKit/Details/ASTextNodeRenderer.mm
index b17ae283..af28bf17 100644
--- a/AsyncDisplayKit/Details/ASTextNodeRenderer.mm
+++ b/AsyncDisplayKit/Details/ASTextNodeRenderer.mm
@@ -173,9 +173,13 @@ static const CGFloat ASTextNodeRendererTextCapHeightPadding = 1.3;
 {
   ASDN::MutexLocker l(_textKitLock);
 
+  if (_attributedString.string.length == 0) {
+    _calculatedSize = CGSizeZero;
+    return;
+  }
+    
   [self _initializeTextKitComponentsIfNeeded];
 
-
   // Force glyph generation and layout, which may not have happened yet (and
   // isn't triggered by -usedRectForTextContainer:).
   [_layoutManager ensureLayoutForTextContainer:_textContainer];