rust/tests/ui/enum-discriminant/issue-70453-generics-in-discr-ice-2.rs
2023-05-05 21:42:54 +01:00

17 lines
413 B
Rust

#![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 enum discriminant values
}
fn main() {
assert_eq!(discriminant_value(&MyWeirdOption::<u8>::None), 0);
assert_eq!(discriminant_value(&MyWeirdOption::Some(0u8)), 1);
}