diff options
Diffstat (limited to 'tests/ui/borrowck/borrowck-union-move-assign.rs')
-rw-r--r-- | tests/ui/borrowck/borrowck-union-move-assign.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/ui/borrowck/borrowck-union-move-assign.rs b/tests/ui/borrowck/borrowck-union-move-assign.rs new file mode 100644 index 000000000..4c96ccdb2 --- /dev/null +++ b/tests/ui/borrowck/borrowck-union-move-assign.rs @@ -0,0 +1,32 @@ +use std::mem::ManuallyDrop; + +// Non-copy +struct A; +struct B; + +union U { + a: ManuallyDrop<A>, + b: ManuallyDrop<B>, +} + +fn main() { + unsafe { + { + let mut u = U { a: ManuallyDrop::new(A) }; + let a = u.a; + let a = u.a; //~ ERROR use of moved value: `u` + } + { + let mut u = U { a: ManuallyDrop::new(A) }; + let a = u.a; + u.a = ManuallyDrop::new(A); + let a = u.a; // OK + } + { + let mut u = U { a: ManuallyDrop::new(A) }; + let a = u.a; + u.b = ManuallyDrop::new(B); + let a = u.a; // OK + } + } +} |