diff options
Diffstat (limited to 'tests/ui/borrowck/or-patterns.rs')
-rw-r--r-- | tests/ui/borrowck/or-patterns.rs | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/tests/ui/borrowck/or-patterns.rs b/tests/ui/borrowck/or-patterns.rs new file mode 100644 index 000000000..aeab3b92e --- /dev/null +++ b/tests/ui/borrowck/or-patterns.rs @@ -0,0 +1,62 @@ +// Test that borrow check considers all choices in an or pattern, even the +// unreachable ones. + +fn or_pattern_moves_all(x: ((String, String),)) { + match x { + ((y, _) | (_, y),) => (), + } + &x.0 .0; + //~^ ERROR borrow of moved value + &x.0 .1; + //~^ ERROR borrow of moved value +} + +fn or_pattern_borrows_all(mut x: ((String, String),)) { + let r = match x { + ((ref y, _) | (_, ref y),) => y, + }; + &mut x.0 .0; + //~^ ERROR cannot borrow + &mut x.0 .1; + //~^ ERROR cannot borrow + drop(r); +} + +fn or_pattern_borrows_all_mut(mut x: ((String, String),)) { + let r = match x { + ((ref mut y, _) | (_, ref mut y),) => y, + }; + &x.0 .0; + //~^ ERROR cannot borrow + &x.0 .1; + //~^ ERROR cannot borrow + drop(r); +} + +fn let_or_pattern_moves_all(x: ((String, String),)) { + let ((y, _) | (_, y),) = x; + &x.0 .0; + //~^ ERROR borrow of moved value + &x.0 .1; + //~^ ERROR borrow of moved value +} + +fn let_or_pattern_borrows_all(mut x: ((String, String),)) { + let ((ref r, _) | (_, ref r),) = x; + &mut x.0 .0; + //~^ ERROR cannot borrow + &mut x.0 .1; + //~^ ERROR cannot borrow + drop(r); +} + +fn let_or_pattern_borrows_all_mut(mut x: ((String, String),)) { + let ((ref mut r, _) | (_, ref mut r),) = x; + &x.0 .0; + //~^ ERROR cannot borrow + &x.0 .1; + //~^ ERROR cannot borrow + drop(r); +} + +fn main() {} |