form-validation 0.3.1

A library for validating forms, and allowing validation logic to be shared.
Documentation 
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use crate::ValidationErrors;

/// A function/struct/item that can perform validation on an item with
/// a given `Value` type.
pub trait Validation<Value, Key> {
    /// Validate a given form field referenced by a given `Key`, that
    /// contains a given `Value`, returns
    /// [ValidationErrors](ValidationErrors) if there are any.
    fn validate_value(&self, value: &Value, key: &Key) -> Result<(), ValidationErrors<Key>>;
}