rust/tests/ui/borrowck/reassignment_immutable_fields_twice.rs
2023-01-11 09:32:08 +00:00

18 lines
302 B
Rust

// This should never be allowed -- since `x` is not `mut`, so `x.0`
// cannot be assigned twice.
fn var_then_field() {
let x: (u32, u32);
x = (22, 44);
x.0 = 1; //~ ERROR
}
fn same_field_twice() {
let x: (u32, u32);
x.0 = 1; //~ ERROR
x.0 = 22;
x.1 = 44;
}
fn main() { }