rust/tests/compile-fail/stacked_borrows/load_invalid_mut.rs
2018-10-23 11:20:04 +02:00

10 lines
350 B
Rust

// Make sure that we cannot load from memory a `&mut` that got already invalidated.
fn main() {
let x = &mut 42;
let xraw = x as *mut _;
let xref = unsafe { &mut *xraw };
let xref_in_mem = Box::new(xref);
let _val = *x; // invalidate xraw
let _val = *xref_in_mem; //~ ERROR Mut reference with non-reactivatable tag Mut(Uniq
}