[rustc.git] / src / test / ui / enum-discriminant / issue-70453-generics-in-discr-ice-2.rs

#![feature(core_intrinsics)]

extern crate core;
use core::intrinsics::discriminant_value;

#[repr(usize)]
enum MyWeirdOption<T> {
    None = 0,
    Some(T) = std::mem::size_of::<T>(),
    //~^ ERROR generic parameters may not be used in const operations
}

fn main() {
    assert_eq!(discriminant_value(&MyWeirdOption::<u8>::None), 0);
    assert_eq!(discriminant_value(&MyWeirdOption::Some(0u8)), 1);
}
Commit	Line	Data
2b03887a	1	#![feature(core_intrinsics)]
f9f354fc XL	2
	3	extern crate core;
	4	use core::intrinsics::discriminant_value;
	5
	6	#[repr(usize)]
	7	enum MyWeirdOption<T> {
	8	None = 0,
	9	Some(T) = std::mem::size_of::<T>(),
5869c6ff	10	//~^ ERROR generic parameters may not be used in const operations
f9f354fc XL	11	}
	12
	13	fn main() {
	14	assert_eq!(discriminant_value(&MyWeirdOption::<u8>::None), 0);
	15	assert_eq!(discriminant_value(&MyWeirdOption::Some(0u8)), 1);
	16	}