[rustc.git] / tests / ui / consts / const-eval / erroneous-const.rs

//! Make sure we error on erroneous consts even if they are unused.
#![allow(unconditional_panic)]

struct PrintName<T>(T);
impl<T> PrintName<T> {
    const VOID: () = [()][2]; //~ERROR evaluation of `PrintName::<i32>::VOID` failed
}

const fn no_codegen<T>() {
    if false {
        // This bad constant is only used in dead code in a no-codegen function... and yet we still
        // must make sure that the build fails.
        let _ = PrintName::<T>::VOID; //~ constant
    }
}

pub static FOO: () = no_codegen::<i32>();

fn main() {
    FOO
}
Commit	Line	Data
3dfed10e	1	//! Make sure we error on erroneous consts even if they are unused.
2b03887a	2	#![allow(unconditional_panic)]
3dfed10e XL	3
	4	struct PrintName<T>(T);
	5	impl<T> PrintName<T> {
2b03887a	6	const VOID: () = [()][2]; //~ERROR evaluation of `PrintName::<i32>::VOID` failed
3dfed10e XL	7	}
	8
	9	const fn no_codegen<T>() {
	10	if false {
17df50a5 XL	11	// This bad constant is only used in dead code in a no-codegen function... and yet we still
17df50a5 XL	12	// must make sure that the build fails.
487cf647	13	let _ = PrintName::<T>::VOID; //~ constant
3dfed10e XL	14	}
	15	}
	16
fc512014	17	pub static FOO: () = no_codegen::<i32>();
3dfed10e XL	18
	19	fn main() {
	20	FOO
	21	}