Require T: Hash for IdAliasStore<T>

pierwill · pierwill · commit 80309d235763 · 2021-12-17T11:40:55.000-06:00
diff --git a/chalk-solve/src/display/state.rs b/chalk-solve/src/display/state.rs
@@ -60,7 +60,7 @@ impl<T> Default for IdAliasStore<T> {
     }
 }
 
-impl<T: Copy> IdAliasStore<T> {
+impl<T: Copy + Eq + core::hash::Hash> IdAliasStore<T> {
     fn alias_for_id_name(&mut self, id: T, name: String) -> String {
         let next_unused_for_name = &mut self.next_unused_for_name;
         let alias = *self.aliases.entry(id).or_insert_with(|| {

Original file line number	Diff line number	Diff line change
`@@ -60,7 +60,7 @@ impl<T> Default for IdAliasStore<T> {`
`60`	`60`	`}`
`61`	`61`	`}`
`62`	`62`
`63`		`-impl<T: Copy> IdAliasStore<T> {`
	`63`	`+impl<T: Copy + Eq + core::hash::Hash> IdAliasStore<T> {`
`64`	`64`	`fn alias_for_id_name(&mut self, id: T, name: String) -> String {`
`65`	`65`	`let next_unused_for_name = &mut self.next_unused_for_name;`
`66`	`66`	`let alias = *self.aliases.entry(id).or_insert_with(\|\| {`