diff options
Diffstat (limited to 'tests/ui/binding/func-arg-incomplete-pattern.rs')
-rw-r--r-- | tests/ui/binding/func-arg-incomplete-pattern.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/binding/func-arg-incomplete-pattern.rs b/tests/ui/binding/func-arg-incomplete-pattern.rs new file mode 100644 index 000000000..eb94ee48f --- /dev/null +++ b/tests/ui/binding/func-arg-incomplete-pattern.rs @@ -0,0 +1,22 @@ +// run-pass +#![allow(dead_code)] +// Test that we do not leak when the arg pattern must drop part of the +// argument (in this case, the `y` field). + +struct Foo { + x: Box<usize>, + y: Box<usize>, +} + +fn foo(Foo {x, ..}: Foo) -> *const usize { + let addr: *const usize = &*x; + addr +} + +pub fn main() { + let obj: Box<_> = Box::new(1); + let objptr: *const usize = &*obj; + let f = Foo { x: obj, y: Box::new(2) }; + let xptr = foo(f); + assert_eq!(objptr, xptr); +} |