fixes #19013 [backport:1.6] (#19111)

* fixes #19013 [backport:1.6] * added test case
2021-11-09 12:43:16 +01:00 · 2021-11-09 12:43:16 +01:00 · b7c66ce860
commit b7c66ce860
parent 83a9c3ba31
4 changed files with 46 additions and 8 deletions
--- a/tests/isolate/tisolate2.nim
+++ b/tests/isolate/tisolate2.nim
@ -0,0 +1,22 @@
+discard """
+  errormsg: "expression cannot be isolated: a_to_b(a)"
+  line: 22
+"""
+
+# bug #19013
+import std/isolation
+
+type Z = ref object
+  i: int
+
+type A = object
+  z: Z
+
+type B = object
+  z: Z
+
+func a_to_b(a: A): B =
+  result = B(z: a.z)
+
+let a = A(z: Z(i: 3))
+let b = isolate(a_to_b(a))