Struct ValidationFn

pub struct ValidationFn<V> { /* private fields */ }

Implementations

impl<V> ValidationFn<V>

pub fn validate(&self, i: V) -> Option<String>

Trait Implementations

impl<V: Clone> Clone for ValidationFn<V>

fn clone(&self) -> ValidationFn<V>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<V> Default for ValidationFn<V>

fn default() -> ValidationFn<V>

Returns the “default value” for a type.

impl<V, FN> From<FN> for ValidationFn<V>

where FN: Fn(V) -> Option<String> + 'static,

fn from(f: FN) -> ValidationFn<V>

Converts to this type from the input type.

impl<V> PartialEq for ValidationFn<V>

fn eq(&self, _other: &ValidationFn<V>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.