Trait Validator 

pub trait Validator: Clone {
    type Err: Error + Send + Sync + 'static;

    // Required method
    fn validate(s: impl AsRef<str>) -> Result<(), Self::Err>;
}

Validation trait

Usually it’s implemented by marker type.

Required Associated Types

type Err: Error + Send + Sync + 'static

Required Methods

fn validate(s: impl AsRef<str>) -> Result<(), Self::Err>

Validate the string.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl Validator for ()

type Err = Infallible

fn validate(_: impl AsRef<str>) -> Result<(), Self::Err>

Implementors

impl Validator for NoValidation

type Err = Infallible