Nim/tests/destructor/tsink.nim

discard """
  matrix: "--mm:arc"
"""

type AnObject = object of RootObj
  value*: int

proc mutate(shit: sink AnObject) =
  shit.value = 1

proc foo = # bug #23359
  var bar = AnObject(value: 42)
  mutate(bar)
  doAssert bar.value == 42

foo()

block: # bug #23902
  proc foo(a: sink string): auto = (a, a)

  proc bar(a: sink int): auto = return a

  proc foo(a: sink string) =
    var x = (a, a)