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type
PA[T] = ref TA[T]
TA[T] = object
field: T
var a: PA[string]
new(a)
a.field = "some string"
proc someOther[T](len: string): seq[T] = discard
proc someOther[T](len: int): seq[T] = echo "we"
proc foo[T](x: T) =
var s = someOther[T](34)
#newSeq[T](34)
foo 23
when false:
# Compiles unless you use var a: PA[string]
type
PA = ref TA
TA[T] = object
# Cannot instantiate:
type
TA[T] = object
a: PA[T]
PA[T] = ref TA[T]
type
PA[T] = ref TA[T]
TA[T] = object
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