diff options
Diffstat (limited to 'tests/ui/lint/unused/unused-allocation.rs')
-rw-r--r-- | tests/ui/lint/unused/unused-allocation.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/ui/lint/unused/unused-allocation.rs b/tests/ui/lint/unused/unused-allocation.rs new file mode 100644 index 000000000..c1a6f5cea --- /dev/null +++ b/tests/ui/lint/unused/unused-allocation.rs @@ -0,0 +1,7 @@ +#![feature(rustc_attrs, stmt_expr_attributes)] +#![deny(unused_allocation)] + +fn main() { + _ = (#[rustc_box] Box::new([1])).len(); //~ error: unnecessary allocation, use `&` instead + _ = Box::new([1]).len(); //~ error: unnecessary allocation, use `&` instead +} |