Trait dialoguer::Validator[−][src]

pub trait Validator {
    type Err: Debug + Display;
    fn validate(&self, text: &str) -> Result<(), Self::Err>;
}

Associated Types

type Err: Debug + Display[src]

Required methods

fn validate(&self, text: &str) -> Result<(), Self::Err>[src][−]

Invoked with the value to validate.

If this produces Ok(()) then the value is used and parsed, if an error is returned validation fails with that error.

Implementors

impl<T: Fn(&str) -> Result<(), E>, E: Debug + Display> Validator for T[src][+]

type Err = E