Enum Outcome 

pub enum Outcome<T, P> {
    Replayed(T),
    Live(P),
}

How the cursor answered a request: from recorded history, or with a permission to execute live.

This enum is the type-level encoding of the replay rule. A Replayed value carries the recorded result and nothing else, so holding one gives no way to execute. A Live value carries a permit (or, for operations with no result, the Emitted event to persist), and permits are the only path to recording a fresh result.

Variants

Replayed(T)

The log already holds the answer. Use it; execute nothing.

Live(P)

History is exhausted at this operation. Execute it and record the result through the carried permit.

Trait Implementations

impl<T, P> Debug for Outcome<T, P>

where T: Debug, P: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.