Enum FutureState 

pub enum FutureState {
    Running,
    Done(Value),
    Failed(Value),
    GasExhausted,
    Cancelled,
}

Thread-pool future state.

Variants

Running

Done(Value)

Failed(Value)

The future’s body threw. Holds the thrown Clojure value (a Value::Error) so await/deref can re-throw it with its ex-data/ex-cause intact, rather than a stringified message.

GasExhausted

The future exhausted the evaluation budget. Kept distinct from a thrown value so user-level catch clauses cannot intercept it.

Cancelled