diff options
Diffstat (limited to 'src/test/ui/destructuring-assignment/warn-unused-duplication.rs')
-rw-r--r-- | src/test/ui/destructuring-assignment/warn-unused-duplication.rs | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/src/test/ui/destructuring-assignment/warn-unused-duplication.rs b/src/test/ui/destructuring-assignment/warn-unused-duplication.rs deleted file mode 100644 index 390f44b8a..000000000 --- a/src/test/ui/destructuring-assignment/warn-unused-duplication.rs +++ /dev/null @@ -1,21 +0,0 @@ -// run-pass - -#![warn(unused_assignments)] - -fn main() { - let mut a; - // Assignment occurs left-to-right. - // However, we emit warnings when this happens, so it is clear that this is happening. - (a, a) = (0, 1); //~ WARN value assigned to `a` is never read - assert_eq!(a, 1); - - // We can't always tell when a variable is being assigned to twice, which is why we don't try - // to emit an error, which would be fallible. - let mut x = 1; - (*foo(&mut x), *foo(&mut x)) = (5, 6); - assert_eq!(x, 6); -} - -fn foo<'a>(x: &'a mut u32) -> &'a mut u32 { - x -} |