musli/
no_std.rs

1//! Trait fills for `#[no_std]` environments.
2//!
3//! * [`ToOwned`] - if the `alloc` feature is enabled, this is an alias for
4//!   `alloc::borrow::ToOwned`.
5
6#[doc(inline)]
7pub use musli_core::no_std::ToOwned;
8
9/// A somewhat portable, but also noisy abort implementation for no_std
10/// environments.
11///
12/// While this should ultimately cause the process to abort, it will first cause
13/// the process to panic and report it through the panic hook.
14#[cold]
15#[cfg(not(feature = "std"))]
16pub(crate) fn abort(s: &'static str) -> ! {
17    struct Abort;
18
19    // A panic during an unwinding drop leads to an abort.
20    impl Drop for Abort {
21        #[inline(always)]
22        fn drop(&mut self) {
23            panic!()
24        }
25    }
26
27    let _a = Abort;
28    panic!("{s}")
29}
30
31#[cfg(feature = "std")]
32#[cold]
33pub(crate) fn abort(_: &'static str) -> ! {
34    ::std::process::abort();
35}