fieldx 0.2.3

use std::borrow::Borrow;
use std::fmt;
use std::fmt::Debug;
use std::ops::Deref;

use super::RwLock;
/// Lock-protected container
///
/// This is a wrapper around the [`RwLock`] synchronization primitive. It provides a safe way to clone a lock
/// and the data it protects, as well as compare two locked values. No additional functionality is provided.
///
/// **Note:** By default this documentation is built with the `async-tokio` feature enabled and thus links to the Tokio
/// `RwLock` type. If you use the `async-lock` feature instead the final inner type of `FXRwLock` will be
/// `async_lock::RwLock`.
pub struct FXRwLock<T>(RwLock<T>);

impl<T> FXRwLock<T> {
    #[doc(hidden)]
    pub fn new(value: T) -> Self {
        Self(RwLock::new(value))
    }

    /// Consumes the lock and returns the wrapped value.
    pub fn into_inner(self) -> T {
        self.0.into_inner()
    }
}

impl<T> From<T> for FXRwLock<T> {
    fn from(value: T) -> Self {
        Self(RwLock::new(value))
    }
}

impl<T> Deref for FXRwLock<T> {
    type Target = RwLock<T>;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl<T> AsRef<RwLock<T>> for FXRwLock<T> {
    fn as_ref(&self) -> &RwLock<T> {
        &self.0
    }
}

impl<T> Borrow<RwLock<T>> for FXRwLock<T> {
    fn borrow(&self) -> &RwLock<T> {
        &self.0
    }
}

impl<T> Clone for FXRwLock<T>
where
    T: Clone,
{
    fn clone(&self) -> Self {
        #[cfg(feature = "async-tokio")]
        let vguard = self.0.blocking_read();

        #[cfg(feature = "async-lock")]
        let vguard = self.0.read_blocking();

        Self(RwLock::new((*vguard).clone()))
    }
}

impl<T> Debug for FXRwLock<T>
where
    T: Debug,
{
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        self.0.fmt(f)
    }
}

impl<T: Default> Default for FXRwLock<T> {
    fn default() -> Self {
        Self(RwLock::new(T::default()))
    }
}