Enum DriveOutcome 

pub enum DriveOutcome {
    Terminal(Vec<Line>),
    AwaitingExternal(Vec<Line>),
}

Outcome of a single FlowInstance::drive call: either the drive reached a terminal line, or it paused on a deferred external mid-drive. Both variants carry every Line produced during this call — for AwaitingExternal, that’s the (possibly empty) run of Line::Text produced before the pause; for Terminal, the terminal line is always the last element (see FlowInstance::drive).

Variants

Terminal(Vec<Line>)

Reached a terminal line (Line::Done, Line::Choices, or Line::End) — always the last element of the Vec.

AwaitingExternal(Vec<Line>)

Paused on a deferred external (ExternalResult::Pending). Resolve it (FlowInstance::resolve_external) and call FlowInstance::drive again — with the same budget — to resume.

Trait Implementations

impl Clone for DriveOutcome

fn clone(&self) -> DriveOutcome

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DriveOutcome

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

Formats the value using the given formatter.