Error formatting macro: pagetree: java.lang.NullPointerException

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  • which (if any) of these make sense for other refs?
    • timeout seems really confusing for non-blocking
    • has-value? could be trivially true for other refs
      • but causes paranoia?
  • overload deref for timeout, or new fn name?



  • I want to know if a potentially blocking deref has a value
    • future-done? for Future
    • (.hasValue foo) for Promise