Trait Handler 

pub trait Handler {
    type Output: Serialize;

    // Required method
    fn handle(
        &mut self,
        matches: &ArgMatches,
        ctx: &CommandContext,
    ) -> HandlerResult<Self::Output>;

    // Provided method
    fn expected_args(&self) -> Vec<ExpectedArg> { ... }
}

Required Associated Types

type Output: Serialize

Required Methods

fn handle( &mut self, matches: &ArgMatches, ctx: &CommandContext, ) -> HandlerResult<Self::Output>

Provided Methods

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

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<F, T, R> Handler for FnHandler<F, T, R>

where F: FnMut(&ArgMatches, &CommandContext) -> R, R: IntoHandlerResult<T>, T: Serialize,

type Output = T

impl<F, T, R> Handler for SimpleFnHandler<F, T, R>

where F: FnMut(&ArgMatches) -> R, R: IntoHandlerResult<T>, T: Serialize,

type Output = T