Implement FusedIterator for BitIter.

Tage Johansson · lqd · commit bcf90b67bff4 · 2025-05-08T16:41:17.000Z
diff --git a/compiler/rustc_index/src/bit_set/thin_bit_set.rs b/compiler/rustc_index/src/bit_set/thin_bit_set.rs
@@ -1,5 +1,6 @@
 use std::alloc::{Layout, alloc, alloc_zeroed, dealloc, handle_alloc_error, realloc};
 use std::hash::{Hash, Hasher};
+use std::iter::FusedIterator;
 use std::marker::PhantomData;
 use std::mem::ManuallyDrop;
 use std::ops::{Range, RangeInclusive};
@@ -1077,6 +1078,8 @@ impl<'a, T: Idx> Iterator for BitIter<'a, T> {
     }
 }
 
+impl<'a, T: Idx> FusedIterator for BitIter<'a, T> {}
+
 impl<T: Idx> fmt::Debug for ThinBitSet<T> {
     fn fmt(&self, w: &mut fmt::Formatter<'_>) -> fmt::Result {
         w.debug_list().entries(self.iter()).finish()

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,6 @@`
`1`	`1`	`use std::alloc::{Layout, alloc, alloc_zeroed, dealloc, handle_alloc_error, realloc};`
`2`	`2`	`use std::hash::{Hash, Hasher};`
	`3`	`+use std::iter::FusedIterator;`
`3`	`4`	`use std::marker::PhantomData;`
`4`	`5`	`use std::mem::ManuallyDrop;`
`5`	`6`	`use std::ops::{Range, RangeInclusive};`
`@@ -1077,6 +1078,8 @@ impl<'a, T: Idx> Iterator for BitIter<'a, T> {`
`1077`	`1078`	`}`
`1078`	`1079`	`}`
`1079`	`1080`
	`1081`	`+impl<'a, T: Idx> FusedIterator for BitIter<'a, T> {}`
	`1082`	`+`
`1080`	`1083`	`impl<T: Idx> fmt::Debug for ThinBitSet<T> {`
`1081`	`1084`	`fn fmt(&self, w: &mut fmt::Formatter<'_>) -> fmt::Result {`
`1082`	`1085`	`w.debug_list().entries(self.iter()).finish()`