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# Program to detect bug #1796 reliably

type

Node = ref object

a, b: Node

leaf: string

proc createCycle(leaf: string): Node =

new result

result.a = result

shallowCopy result.leaf, leaf

proc main =

for i in 0 .. 100_000:

var leaf = "this is the leaf. it allocates"

let x = createCycle(leaf)

let y = createCycle(leaf)

main()

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