valitron 0.5.6

Valitron is an ergonomics, functional and configurable validator
Documentation 
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//! Reverse existing rules
//!
//! # Examples
//! ```
//! # use serde::Serialize;
//! # use valitron::{available::{Contains, MessageKind, Not}, Validatable, Validator};
//! #[derive(Serialize, Debug)]
//! struct Input {
//!     email: String,
//! }
//!
//! let input = Input {
//!     email: String::from("hi"),
//! };
//! input
//!     .validate(Validator::new().rule("email", Not(Contains("example.com"))))
//!     .unwrap();
//!
//!
//!
//! let input = Input {
//!     email: String::from("user@example.com"),
//! };
//! let err = input
//!     .validate(Validator::new().rule("email", Not(Contains("example.com"))))
//!     .unwrap_err();
//!
//! assert!(matches!(
//!     err.get("email").unwrap()[0].kind(),
//!     MessageKind::Contains(_)
//! ));
//! ```

use core::fmt;
use std::fmt::Debug;

use crate::{rule::string::StringRule, Rule, Value};

#[derive(Clone)]
pub struct Not<T>(pub T);

impl<T: Debug> Debug for Not<T> {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.debug_tuple("Not").field(&self.0).finish()
    }
}

crate::__impl_copy!(Not);

impl<T: Rule> Rule for Not<T> {
    type Message = T::Message;

    const NAME: &'static str = T::NAME;

    fn message(&self) -> Self::Message {
        self.0.message()
    }

    fn call(&mut self, value: &mut Value) -> bool {
        !self.0.call(value)
    }
}

impl<T: StringRule> StringRule for Not<T> {
    type Message = T::Message;

    const NAME: &'static str = T::NAME;

    fn message(&self) -> Self::Message {
        self.0.message()
    }

    fn call(&mut self, value: &mut String) -> bool {
        !self.0.call(value)
    }
}

impl<T> Not<&T> {
    pub const fn copied(self) -> Not<T>
    where
        T: Copy,
    {
        Not(*self.0)
    }

    pub fn cloned(self) -> Not<T>
    where
        T: Clone,
    {
        Not(self.0.clone())
    }
}

impl<T> Not<&mut T> {
    pub fn copied(self) -> Not<T>
    where
        T: Copy,
    {
        Not(*self.0)
    }

    pub fn cloned(self) -> Not<T>
    where
        T: Clone,
    {
        Not(self.0.clone())
    }
}