| // ICE: ImmTy { imm: Scalar(alloc1), ty: *const dyn Sync } input to a fat-to-thin cast (*const dyn Sync -> *const usize |
| // or with -Zextra-const-ub-checks: expected wide pointer extra data (e.g. slice length or trait object vtable) |
| // issue: rust-lang/rust#121413 |
| //@ compile-flags: -Zextra-const-ub-checks |
| // ignore-tidy-linelength |
| const REF_INTERIOR_MUT: &usize = { |
| //~^ HELP consider importing this struct |
| static FOO: Sync = AtomicUsize::new(0); |
| //~^ ERROR failed to resolve: use of undeclared type `AtomicUsize` |
| //~| WARN trait objects without an explicit `dyn` are deprecated |
| //~| ERROR the size for values of type `(dyn Sync + 'static)` cannot be known at compilation time |
| //~| WARN this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! |
| //~| HELP if this is a dyn-compatible trait, use `dyn` |
| //~| HELP the trait `Sized` is not implemented for `(dyn Sync + 'static)` |
| unsafe { &*(&FOO as *const _ as *const usize) } |
| }; |
| pub fn main() {} |
