diff --git a/compiler/liftdestructors.nim b/compiler/liftdestructors.nim index 3671f62b8eb4..377ba149a1ea 100644 --- a/compiler/liftdestructors.nim +++ b/compiler/liftdestructors.nim @@ -93,8 +93,8 @@ proc fillBodyObj(c: var TLiftCtx; n, body, x, y: PNode; enforceDefaultOp: bool) # XXX This is only correct for 'attachedSink'! var localEnforceDefaultOp = enforceDefaultOp if c.kind == attachedSink: - ## the value needs to be destroyed before we assign the selector - ## or the value is lost + # the value needs to be destroyed before we assign the selector + # or the value is lost let prevKind = c.kind c.kind = attachedDestructor fillBodyObj(c, n, body, x, y, enforceDefaultOp = false) @@ -704,7 +704,10 @@ proc fillBody(c: var TLiftCtx; t: PType; body, x, y: PNode) = defaultOp(c, t, body, x, y) of tyObject: if not considerUserDefinedOp(c, t, body, x, y): - fillBodyObjT(c, t, body, x, y) + if c.kind in {attachedAsgn, attachedSink} and t.sym != nil and sfImportc in t.sym.flags: + body.add newAsgnStmt(x, y) + else: + fillBodyObjT(c, t, body, x, y) of tyDistinct: if not considerUserDefinedOp(c, t, body, x, y): fillBody(c, t[0], body, x, y) diff --git a/tests/arc/timportedobj.nim b/tests/arc/timportedobj.nim new file mode 100644 index 000000000000..82d7b4740924 --- /dev/null +++ b/tests/arc/timportedobj.nim @@ -0,0 +1,14 @@ +discard """ + cmd: "nim c --gc:arc $file" + action: "compile" +""" + +# bug #13269 + +import posix +proc foo*() = + var last = newSeq[Stat]() + var next = last + for i in 0..3: + last = next +foo()