src/test/ui/issues/issue-72002.rs

   1 // check-pass
   2 struct Indexable;
   3
   4 impl Indexable {
   5     fn boo(&mut self) {}
   6 }
   7
   8 impl std::ops::Index<&str> for Indexable {
   9     type Output = Indexable;
  10
  11     fn index(&self, field: &str) -> &Indexable {
  12         self
  13     }
  14 }
  15
  16 impl std::ops::IndexMut<&str> for Indexable {
  17     fn index_mut(&mut self, field: &str) -> &mut Indexable {
  18         self
  19     }
  20 }
  21
  22 fn main() {
  23     let mut v = Indexable;
  24     let field = "hello".to_string();
  25
  26     v[field.as_str()].boo();
  27
  28     v[&field].boo(); // < This should work
  29 }