swc_common 24.0.0

Common utilities for the swc project.
Documentation 
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use std::ops::Deref;

use once_cell::sync::OnceCell;

/// Wrapper for [OnceCell].
#[derive(Clone, Debug)]
pub struct CacheCell<T>(OnceCell<T>);

impl<T> Deref for CacheCell<T> {
    type Target = OnceCell<T>;

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

impl<T> CacheCell<T> {
    pub fn new() -> Self {
        Self(OnceCell::new())
    }
}

impl<T> From<T> for CacheCell<T> {
    fn from(value: T) -> Self {
        Self(OnceCell::from(value))
    }
}

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