From 077eba7b388259ecca7e9e7990f48efe9e3641c5 Mon Sep 17 00:00:00 2001
From: flywind <xzsflywind@gmail.com>
Date: Thu, 12 Nov 2020 23:24:45 +0800
Subject: [PATCH] make workaround for #15934 and #15620

---
 lib/core/typeinfo.nim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/core/typeinfo.nim b/lib/core/typeinfo.nim
index 5c4e1b6019..2f213956b9 100644
--- a/lib/core/typeinfo.nim
+++ b/lib/core/typeinfo.nim
@@ -327,7 +327,8 @@ proc setPointer*(x: Any, y: pointer) =
   ## ``akString``, ``akCString``, ``akProc``, ``akRef``, ``akPtr``,
   ## ``akPointer``, ``akSequence``.
   assert x.rawType.kind in pointerLike
-  genericAssign(x.value, y, x.rawType)
+  if y != nil:
+    genericAssign(x.value, y, x.rawType)
 
 proc fieldsAux(p: pointer, n: ptr TNimNode,
                ret: var seq[tuple[name: cstring, any: Any]]) =