From 3646469d00785c545b5efad8c211fa57475d8dba Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Thu, 9 Oct 2025 21:09:32 +0800
Subject: [PATCH 1/3] test deref

---
 compiler/transf.nim | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/compiler/transf.nim b/compiler/transf.nim
index 7ad4634ea347..066be57f8763 100644
--- a/compiler/transf.nim
+++ b/compiler/transf.nim
@@ -519,8 +519,7 @@ proc transformAddrDeref(c: PTransf, n: PNode, kinds: TNodeKinds, isAddr = false)
           n.typ.kind == tyVar and
           n.typ.skipTypes(abstractVar).kind == tyOpenArray and
           n[0][0].typ.skipTypes(abstractVar).kind == tyString) and
-          not (isAddr and n.typ.kind == tyVar and n[0][0].typ.kind == tyRef and
-              n[0][0].kind == nkObjConstr)
+          not (isAddr and n.typ.kind == tyVar and n[0][0].typ.kind == tyRef)
         : # elimination is harmful to `for tuple unpack` because of newTupleAccess
           # it is also harmful to openArrayLoc (var openArray) for strings
       # addr ( deref ( x )) --> x

From 11f08ac0ce22161f9fd4fd571b431cb16ad04a5c Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Thu, 9 Oct 2025 22:28:29 +0800
Subject: [PATCH 2/3] adds a test case

---
 tests/vm/tmisc_vm.nim | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/vm/tmisc_vm.nim b/tests/vm/tmisc_vm.nim
index 1ad830b5fff5..6a0c0c33fb40 100644
--- a/tests/vm/tmisc_vm.nim
+++ b/tests/vm/tmisc_vm.nim
@@ -457,3 +457,25 @@ proc publish*(): void {.transform.} =
   map["k"].incl "d"
 
 publish()
+
+
+iterator it(x: var int): var int =
+  yield x
+
+proc it(x: var int): var int =
+  x
+
+proc xxx() =
+  type Obj = object
+    field: ref int
+  var obj = Obj(field: new(int))
+  obj.field[] = 123
+  assert it(obj.field[]) == 123 # fails
+  for x in it(obj.field[]): # fails
+    assert x == 123
+
+static:
+  xxx()
+
+xxx()
+

From 319fc7e473a9f1b09318c1b220ee2b19b0505aa1 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Fri, 10 Oct 2025 20:41:02 +0800
Subject: [PATCH 3/3] fixes JS

---
 compiler/jsgen.nim | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/compiler/jsgen.nim b/compiler/jsgen.nim
index 7ae649374044..9240c36c63b0 100644
--- a/compiler/jsgen.nim
+++ b/compiler/jsgen.nim
@@ -1586,7 +1586,11 @@ proc genAddr(p: PProc, n: PNode, r: var TCompRes) =
     of nkObjDownConv:
       gen(p, n[0], r)
     of nkHiddenDeref, nkDerefExpr:
-      gen(p, n[0], r)
+      if n.kind in {nkAddr, nkHiddenAddr}:
+        # addr ( deref ( x )) --> x
+        gen(p, n[0][0], r)
+      else:
+        gen(p, n[0], r)
     of nkHiddenAddr:
       gen(p, n[0], r)
     of nkConv: