From 42ac10aac3dc7cdffc4cc2ec3a3c46c13599f773 Mon Sep 17 00:00:00 2001
From: Huy Nguyen <allforone1511@gmail.com>
Date: Tue, 12 Jun 2018 19:32:11 +0100
Subject: [PATCH] Fix crash when call needsMainThreadDeallocation on NSProxy
 instances #trivial (#965)

---
 Source/ASMainThreadDeallocation.h  | 15 ++++++++++++++-
 Source/ASMainThreadDeallocation.mm |  9 +++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/Source/ASMainThreadDeallocation.h b/Source/ASMainThreadDeallocation.h
index 622705f58e..a2aa8249f0 100644
--- a/Source/ASMainThreadDeallocation.h
+++ b/Source/ASMainThreadDeallocation.h
@@ -34,7 +34,7 @@ NS_ASSUME_NONNULL_BEGIN
  * class need to be deallocated on the main thread.
  * You do not access this property yourself.
  *
- * The NSObject implementation returns NO if the class name has
+ * The NSObject implementation returns YES if the class name has
  * a prefix UI, AV, or CA. This property is also overridden to
  * return fixed values for other common classes, such as UIImage,
  * UIGestureRecognizer, and UIResponder.
@@ -43,5 +43,18 @@ NS_ASSUME_NONNULL_BEGIN
 
 @end
 
+@interface NSProxy (ASNeedsMainThreadDeallocation)
+
+/**
+ * Override this property to indicate that instances of this
+ * class need to be deallocated on the main thread.
+ * You do not access this property yourself.
+ *
+ * The NSProxy implementation returns NO because
+ * proxies almost always hold weak references.
+ */
+@property (class, readonly) BOOL needsMainThreadDeallocation;
+
+@end
 
 NS_ASSUME_NONNULL_END
diff --git a/Source/ASMainThreadDeallocation.mm b/Source/ASMainThreadDeallocation.mm
index 22763d8200..36c13421cd 100644
--- a/Source/ASMainThreadDeallocation.mm
+++ b/Source/ASMainThreadDeallocation.mm
@@ -199,3 +199,12 @@
 }
 
 @end
+
+@implementation NSProxy (ASNeedsMainThreadDeallocation)
+
++ (BOOL)needsMainThreadDeallocation
+{
+  return NO;
+}
+
+@end