61db24d15d
Stabilize `PanicInfo::message()` and `PanicMessage` Resolves #66745 This stabilizes the [`PanicInfo::message()`](https://doc.rust-lang.org/nightly/core/panic/struct.PanicInfo.html#method.message) and [`PanicMessage`](https://doc.rust-lang.org/nightly/core/panic/struct.PanicMessage.html). Demonstration of [custom panic handler](https://github.com/StackOverflowExcept1on/panicker): ```rust #![no_std] #![no_main] extern crate libc; #[no_mangle] extern "C" fn main() -> libc::c_int { panic!("I just panic every time"); } #[panic_handler] fn my_panic(panic_info: &core::panic::PanicInfo) -> ! { use arrayvec::ArrayString; use core::fmt::Write; let message = panic_info.message(); let location = panic_info.location().unwrap(); let mut debug_msg = ArrayString::<1024>::new(); let _ = write!(&mut debug_msg, "panicked with '{message}' at '{location}'"); if debug_msg.try_push_str("\0").is_ok() { unsafe { libc::puts(debug_msg.as_ptr() as *const _); } } unsafe { libc::exit(libc::EXIT_FAILURE) } } ``` ``` $ cargo +stage1 run --release panicked with 'I just panic every time' at 'src/main.rs:8:5' ``` - [x] FCP: https://github.com/rust-lang/rust/issues/66745#issuecomment-2198143725 r? libs-api |
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