//! Re-exports either the Rust `std` library or `core` and `alloc` when `std` is //! disabled. //! //! `crate::stdlib::...` should be used rather than `std::` when adding code that //! will be available with the standard library disabled. //! //! Note that this module is called `stdlib` rather than `std`, as Rust 1.34.0 //! does not permit redefining the name `stdlib` (although this works on the //! latest stable Rust). #[cfg(feature = "std")] pub(crate) use std::*;
#[cfg(not(feature = "std"))] mod no_std { // We pre-emptively export everything from libcore/liballoc, (even modules // we aren't using currently) to make adding new code easier. Therefore, // some of these imports will be unused. #![allow(unused_imports)]
pub(crate) use alloc::{boxed, collections, rc, string, vec};
pub(crate) mod borrow { pub(crate) use alloc::borrow::*; pub(crate) use core::borrow::*;
}
pub(crate) mod fmt { pub(crate) use alloc::fmt::*; pub(crate) use core::fmt::*;
}
pub(crate) mod slice { pub(crate) use alloc::slice::*; pub(crate) use core::slice::*;
}
pub(crate) mod str { pub(crate) use alloc::str::*; pub(crate) use core::str::*;
}
pub(crate) mod sync { pub(crate) usecrate::spin::MutexGuard; pub(crate) use alloc::sync::*; pub(crate) use core::sync::*;
/// This wraps `spin::Mutex` to return a `Result`, so that it can be /// used with code written against `std::sync::Mutex`. /// /// Since `spin::Mutex` doesn't support poisoning, the `Result` returned /// by `lock` will always be `Ok`. #[derive(Debug, Default)] pub(crate) struct Mutex<T> {
inner: crate::spin::Mutex<T>,
}
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