Enum Constraint 

pub enum Constraint<'a> {
    MinLength(usize),
    MaxLength(usize),
    Pattern(Option<&'a Regex>),
    Email,
    Url,
    Gt(&'a Number),
    Ge(&'a Number),
    Lt(&'a Number),
    Le(&'a Number),
    MultipleOf(&'a Number),
}

A field constraint checked on the (already coerced) raw value.

Checks are skipped for null (optional fields) and for values of the wrong JSON type (the type error is already reported by prepare).

Variants

MinLength(usize)

Minimum length (characters for strings, items for arrays/objects).

MaxLength(usize)

Maximum length.

Pattern(Option<&'a Regex>)

Regex the whole string must match (None = pattern failed to compile).

Email

Email format.

Url

Absolute URL, as accepted by crate::types::Url.

Gt(&'a Number)

> n.

Ge(&'a Number)

>= n.

Lt(&'a Number)

< n.

Le(&'a Number)

<= n.

MultipleOf(&'a Number)

Multiple of n.

Trait Implementations

impl<'a> Clone for Constraint<'a>

fn clone(&self) -> Constraint<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for Constraint<'a>

impl<'a> Debug for Constraint<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.