diff options
Diffstat (limited to 'tests/ui/borrowck/mut-borrow-in-loop-2.fixed')
-rw-r--r-- | tests/ui/borrowck/mut-borrow-in-loop-2.fixed | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/borrowck/mut-borrow-in-loop-2.fixed b/tests/ui/borrowck/mut-borrow-in-loop-2.fixed new file mode 100644 index 000000000..ceeba30a9 --- /dev/null +++ b/tests/ui/borrowck/mut-borrow-in-loop-2.fixed @@ -0,0 +1,35 @@ +// run-rustfix +#![allow(dead_code)] + +struct Events<R>(R); + +struct Other; + +pub trait Trait<T> { + fn handle(value: T) -> Self; +} + +// Blanket impl. (If you comment this out, compiler figures out that it +// is passing an `&mut` to a method that must be expecting an `&mut`, +// and injects an auto-reborrow.) +impl<T, U> Trait<U> for T where T: From<U> { + fn handle(_: U) -> Self { unimplemented!() } +} + +impl<'a, R> Trait<&'a mut Events<R>> for Other { + fn handle(_: &'a mut Events<R>) -> Self { unimplemented!() } +} + +fn this_compiles<'a, R>(value: &'a mut Events<R>) { + for _ in 0..3 { + Other::handle(&mut *value); + } +} + +fn this_does_not<'a, R>(value: &'a mut Events<R>) { + for _ in 0..3 { + Other::handle(&mut *value); //~ ERROR use of moved value: `value` + } +} + +fn main() {} |