diff options
Diffstat (limited to 'src/libcore/iter/iterator.rs')
| -rw-r--r-- | src/libcore/iter/iterator.rs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs index 35cd7441c66..296fb8733ba 100644 --- a/src/libcore/iter/iterator.rs +++ b/src/libcore/iter/iterator.rs @@ -28,8 +28,13 @@ fn _assert_is_object_safe(_: &Iterator<Item=()>) {} /// [module-level documentation]: index.html /// [impl]: index.html#implementing-iterator #[stable(feature = "rust1", since = "1.0.0")] -#[rustc_on_unimplemented = "`{Self}` is not an iterator; maybe try calling \ - `.iter()` or a similar method"] +#[rustc_on_unimplemented( + on( + _Self="&str", + label="`{Self}` is not an iterator; try calling `.chars()` or `.bytes()`" + ), + label="`{Self}` is not an iterator; maybe try calling `.iter()` or a similar method" +)] #[doc(spotlight)] pub trait Iterator { /// The type of the elements being iterated over. |