Trait ValidateLength

pub trait ValidateLength<T>
where
    T: PartialEq + PartialOrd,
{
    // Required method
    fn length(&self) -> Option<T>;

    // Provided method
    fn validate_length(
        &self,
        min: Option<T>,
        max: Option<T>,
        equal: Option<T>,
    ) -> bool { ... }
}

Validates the length of the value given. If the validator has equal set, it will ignore any min and max value.

If you apply it on String, don’t forget that the length can be different from the number of visual characters for Unicode

Required Methods

fn length(&self) -> Option<T>

Provided Methods

fn validate_length( &self, min: Option<T>, max: Option<T>, equal: Option<T>, ) -> bool

Implementations on Foreign Types

impl ValidateLength<u64> for &str

fn length(&self) -> Option<u64>

impl ValidateLength<u64> for str

fn length(&self) -> Option<u64>

impl ValidateLength<u64> for String

fn length(&self) -> Option<u64>

impl<K, V> ValidateLength<u64> for BTreeMap<K, V>

fn length(&self) -> Option<u64>

impl<K, V, S> ValidateLength<u64> for HashMap<K, V, S>

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Cow<'_, T>

where T: ToOwned + ?Sized, for<'a> &'a T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Option<T>

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for &T

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for [T]

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Box<T>

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for BTreeSet<T>

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for VecDeque<T>

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Rc<T>

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Arc<T>

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Vec<T>

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for Ref<'_, T>

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T> ValidateLength<u64> for RefMut<'_, T>

where T: ValidateLength<u64>,

fn length(&self) -> Option<u64>

impl<T, S> ValidateLength<u64> for HashSet<T, S>

fn length(&self) -> Option<u64>

impl<T, const N: usize> ValidateLength<u64> for [T; N]

fn length(&self) -> Option<u64>

Implementors