Struct LenRange 

pub struct LenRange<const MIN: usize, const MAX: usize>;

Accepts values whose length is in the inclusive range MIN..=MAX.

Examples

use type_lib::rules::LenRange;
use type_lib::Validator;

// A typical username constraint: 3 to 16 characters.
assert!(LenRange::<3, 16>::validate("alice").is_ok());
assert!(LenRange::<3, 16>::validate("ab").is_err());
assert!(LenRange::<3, 16>::validate("this-name-is-far-too-long").is_err());

Trait Implementations

impl<const MIN: usize, const MAX: usize, T: HasLength + ?Sized> Validator<T> for LenRange<MIN, MAX>

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &T) -> Result<(), Self::Error>

Checks value against the rule.