Struct EventsFnHandler 

pub struct EventsFnHandler<F, E, T, R = SummaryResult<T>>
where
    E: Serialize + 'static,
    T: Serialize,
{ /* private fields */ }

The adapter behind a three-argument closure, whose third parameter is the command’s typed results channel, so Event is the closure’s event type.

Implementations

impl<F, E, T, R> EventsFnHandler<F, E, T, R>

where F: FnMut(&ArgMatches, &CommandContext, &mut Results<E>) -> R, R: IntoSummaryResult<T>, E: Serialize + 'static, T: Serialize,

pub fn new(f: F) -> Self

Trait Implementations

impl<F, E, T, R> Handler for EventsFnHandler<F, E, T, R>

where F: FnMut(&ArgMatches, &CommandContext, &mut Results<E>) -> R, R: IntoSummaryResult<T>, E: Serialize + 'static, T: Serialize,

type Event = E

The type of the values the command produces while it runs, or NoEvents for a command that produces none, which is what emits_events reads.

type Output = T

type Outcome = Summary<T>

Output for a batch command, Summary for one that declares events: HandlerOutcome admits the first only under NoEvents.

fn handle( &mut self, matches: &ArgMatches, ctx: &CommandContext, results: &mut Results<E>, ) -> SummaryResult<T>

fn expected_args(&self) -> Vec<ExpectedArg>