diff options
Diffstat (limited to 'tests/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs')
-rw-r--r-- | tests/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs b/tests/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs new file mode 100644 index 000000000..879c03791 --- /dev/null +++ b/tests/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs @@ -0,0 +1,20 @@ +// Test that assignments to an `&mut` pointer which is found in a +// borrowed (but otherwise non-aliasable) location is illegal. + +struct S<'a> { + pointer: &'a mut isize +} + +fn a(s: &S) { + *s.pointer += 1; //~ ERROR cannot assign +} + +fn b(s: &mut S) { + *s.pointer += 1; +} + +fn c(s: & &mut S) { + *s.pointer += 1; //~ ERROR cannot assign +} + +fn main() {} |