Add cursor to lists iterator variables (#22531)

* followup #21507
nim-lang · Aug 24, 2023 · fc6a388 · fc6a388
1 parent 1013378
commit fc6a388
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/pure/collections/lists.nim b/lib/pure/collections/lists.nim
@@ -286,7 +286,7 @@ iterator nodes*[T](L: SomeLinkedList[T]): SomeLinkedNode[T] =
  x.value = 5 * x.value - 1
  assert $a == "[49, 99, 199, 249]"
 
- var it = L.head
+ var it {.cursor.} = L.head
  while it != nil:
  let nxt = it.next
  yield it
@@ -311,7 +311,7 @@ iterator nodes*[T](L: SomeLinkedRing[T]): SomeLinkedNode[T] =
  x.value = 5 * x.value - 1
  assert $a == "[49, 99, 199, 249]"
 
- var it = L.head
+ var it {.cursor.} = L.head
  if it != nil:
  while true:
  let nxt = it.next
@@ -733,7 +733,7 @@ proc remove*[T](L: var SinglyLinkedList[T], n: SinglyLinkedNode[T]): bool {.disc
  if L.tail.next == n:
  L.tail.next = L.head # restore cycle
  else:
- var prev = L.head
+ var prev {.cursor.} = L.head
  while prev.next != n and prev.next != nil:
  prev = prev.next
  if prev.next == nil: