rust/tests/ui/mut/mut-suggestion.rs

23 lines
483 B
Rust

#[derive(Copy, Clone)]
struct S;
impl S {
fn mutate(&mut self) {
}
}
fn func(arg: S) {
//~^ HELP consider changing this to be mutable
//~| SUGGESTION mut
arg.mutate();
//~^ ERROR cannot borrow `arg` as mutable, as it is not declared as mutable
}
fn main() {
let local = S;
//~^ HELP consider changing this to be mutable
//~| SUGGESTION mut
local.mutate();
//~^ ERROR cannot borrow `local` as mutable, as it is not declared as mutable
}