From 4379b31ac2ffb690845d183742875f312bcb5fdc Mon Sep 17 00:00:00 2001
From: Michael Schneider <maicki@users.noreply.github.com>
Date: Thu, 5 Oct 2017 09:06:50 -0700
Subject: [PATCH] Add assertion in dealloc that it is on main in
 ASTextKitComponents (#603)

---
 Source/TextKit/ASTextKitComponents.mm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Source/TextKit/ASTextKitComponents.mm b/Source/TextKit/ASTextKitComponents.mm
index bbd37c229..b733a4f4e 100644
--- a/Source/TextKit/ASTextKitComponents.mm
+++ b/Source/TextKit/ASTextKitComponents.mm
@@ -16,6 +16,7 @@
 //
 
 #import <AsyncDisplayKit/ASTextKitComponents.h>
+#import <AsyncDisplayKit/ASAssert.h>
 
 #import <tgmath.h>
 
@@ -64,6 +65,8 @@ + (instancetype)componentsWithTextStorage:(NSTextStorage *)textStorage
 
 - (void)dealloc
 {
+  ASDisplayNodeAssertMainThread();
+
   // Nil out all delegate to prevent crash
   _textView.delegate = nil;
   _layoutManager.delegate = nil;