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// rust-lang/rust#83309: The compiler tries to suggest potential
// methods that return `&mut` items. However, when it doesn't
// find such methods, it still tries to add suggestions
// which then fails an assertion later because there was
// no suggestions to make.
fn main() {
for v in Query.iter_mut() {
//~^ NOTE this iterator yields `&` references
*v -= 1;
//~^ ERROR cannot assign to `*v`, which is behind a `&` reference
//~| NOTE `v` is a `&` reference, so the data it refers to cannot be written
}
}
pub struct Query;
pub struct QueryIter<'a>(&'a i32);
impl Query {
pub fn iter_mut<'a>(&'a mut self) -> QueryIter<'a> {
todo!();
}
}
impl<'a> Iterator for QueryIter<'a> {
type Item = &'a i32;
fn next(&mut self) -> Option<Self::Item> {
todo!();
}
}
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