File: const_panic_track_caller.rs

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#![allow(non_fmt_panics)]
#![crate_type = "lib"]

#[track_caller]
const fn a() -> u32 {
    panic!("hey")
}

#[track_caller]
const fn b() -> u32 {
    a()
}

const fn c() -> u32 {
    b()
    //~^ ERROR evaluation of constant value failed
    //~| NOTE the evaluated program panicked
    //~| NOTE inside
}

const X: u32 = c();
//~^ NOTE inside