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// This module works around the fact that you can't rely on 
// `Arc<T>: From<U>` to only have one possible implementation anymore (that is, where `U = T`).

use std::sync::Arc;

pub trait Shared<T> {
    fn shared(self) -> Arc<T>;
}

impl<T> Shared<T> for T {
    fn shared(self) -> Arc<T> {
        Arc::from(self)
    }
}

impl<T> Shared<T> for Arc<T> {
    fn shared(self) -> Arc<T> {
        self
    }
}