diff options
Diffstat (limited to 'tests/ui/borrowck/borrowck-match-binding-is-assignment.rs')
-rw-r--r-- | tests/ui/borrowck/borrowck-match-binding-is-assignment.rs | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tests/ui/borrowck/borrowck-match-binding-is-assignment.rs b/tests/ui/borrowck/borrowck-match-binding-is-assignment.rs new file mode 100644 index 000000000..064bf69ae --- /dev/null +++ b/tests/ui/borrowck/borrowck-match-binding-is-assignment.rs @@ -0,0 +1,41 @@ +// Test that immutable pattern bindings cannot be reassigned. + +enum E { + Foo(isize) +} + +struct S { + bar: isize, +} + +pub fn main() { + match 1 { + x => { + x += 1; //~ ERROR [E0384] + } + } + + match E::Foo(1) { + E::Foo(x) => { + x += 1; //~ ERROR [E0384] + } + } + + match (S { bar: 1 }) { + S { bar: x } => { + x += 1; //~ ERROR [E0384] + } + } + + match (1,) { + (x,) => { + x += 1; //~ ERROR [E0384] + } + } + + match [1,2,3] { + [x,_,_] => { + x += 1; //~ ERROR [E0384] + } + } +} |