rust/tests/ui/suggestions/suggest-mut-method-for-loop...

22 lines
443 B
Rust

//@ run-rustfix
// https://github.com/rust-lang/rust/issues/82081
use std::collections::HashMap;
struct Test {
v: u32,
}
fn main() {
let mut map = HashMap::new();
map.insert("a", Test { v: 0 });
for (_k, v) in map.iter() {
//~^ HELP use mutable method
//~| NOTE this iterator yields `&` references
v.v += 1;
//~^ ERROR cannot assign to `v.v`
//~| NOTE `v` is a `&` reference
}
}