1 files changed, 58 insertions, 0 deletions
diff --git a/tests/objvariant/treassign.nim b/tests/objvariant/treassign.nim
new file mode 100644
index 000000000..527204616
--- /dev/null
+++ b/tests/objvariant/treassign.nim
@@ -0,0 +1,58 @@
+discard """
+  output: "SUCCESS"
+"""
+
+type
+    BasicNumber = object of RootObj
+        value: float32
+    RefChild* = ref object
+        curr*: TokenObject
+    Token* {.pure.} = enum
+        foo,
+        bar,
+    TokenObject = object
+        case kind*: Token
+        of Token.foo:
+            foo*: string
+        of Token.bar:
+            bar*: BasicNumber
+
+
+var t = RefChild()
+
+t.curr = TokenObject(kind: Token.bar, bar: BasicNumber(value: 12.34))
+
+t.curr = TokenObject(kind: Token.foo, foo: "foo")
+
+echo "SUCCESS"
+
+proc passToVar(x: var Token) = discard
+
+{.cast(uncheckedAssign).}:
+  passToVar(t.curr.kind)
+
+  t.curr = TokenObject(kind: t.curr.kind, foo: "abc")
+
+  t.curr.kind = Token.foo
+
+
+block:
+  type
+    TokenKind = enum
+      strLit, intLit
+    Token = object
+      case kind*: TokenKind
+      of strLit:
+        s*: string
+      of intLit:
+        i*: int64
+
+  var t = Token(kind: strLit, s: "abc")
+
+  {.cast(uncheckedAssign).}:
+
+    # inside the 'cast' section it is allowed to assign to the 't.kind' field directly:
+    t.kind = intLit
+
+  {.cast(uncheckedAssign).}:
+    t.kind = strLit
\ No newline at end of file