Struct ValueRequiredValidator

pub struct ValueRequiredValidator { /* private fields */ }

Built-in validator that checks whether the answer is not empty.

Examples

use inquire::validator::{StringValidator, Validation, ValueRequiredValidator};

let validator = ValueRequiredValidator::default();
assert_eq!(Validation::Valid, validator.validate("Generic input")?);
assert_eq!(Validation::Invalid("A response is required.".into()), validator.validate("")?);

let validator = ValueRequiredValidator::new("No empty!");
assert_eq!(Validation::Valid, validator.validate("Generic input")?);
assert_eq!(Validation::Invalid("No empty!".into()), validator.validate("")?);

Implementations

impl ValueRequiredValidator

pub fn new(message: impl Into<String>) -> ValueRequiredValidator

Create a new instance of this validator with given error message.

Trait Implementations

impl Clone for ValueRequiredValidator

fn clone(&self) -> ValueRequiredValidator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ValueRequiredValidator

fn default() -> ValueRequiredValidator

Create a new instance of this validator with the default error message A response is required.

impl StringValidator for ValueRequiredValidator

fn validate( &self, input: &str, ) -> Result<Validation, Box<dyn Error + Sync + Send>>

Confirm the given input string is a valid value.