diff options
Diffstat (limited to 'library/core/src/iter/traits/collect.rs')
| -rw-r--r-- | library/core/src/iter/traits/collect.rs | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/library/core/src/iter/traits/collect.rs b/library/core/src/iter/traits/collect.rs index e099700e3..0675e5635 100644 --- a/library/core/src/iter/traits/collect.rs +++ b/library/core/src/iter/traits/collect.rs @@ -95,6 +95,16 @@ #[stable(feature = "rust1", since = "1.0.0")] #[rustc_on_unimplemented( on( + _Self = "&[{A}]", + message = "a slice of type `{Self}` cannot be built since we need to store the elements somewhere", + label = "try explicitly collecting into a `Vec<{A}>`", + ), + on( + all(A = "{integer}", any(_Self = "&[{integral}]",)), + message = "a slice of type `{Self}` cannot be built since we need to store the elements somewhere", + label = "try explicitly collecting into a `Vec<{A}>`", + ), + on( _Self = "[{A}]", message = "a slice of type `{Self}` cannot be built since `{Self}` has no definite size", label = "try explicitly collecting into a `Vec<{A}>`", @@ -228,7 +238,6 @@ pub trait FromIterator<A>: Sized { #[rustc_diagnostic_item = "IntoIterator"] #[rustc_skip_array_during_method_dispatch] #[stable(feature = "rust1", since = "1.0.0")] -#[const_trait] pub trait IntoIterator { /// The type of the elements being iterated over. #[stable(feature = "rust1", since = "1.0.0")] @@ -264,7 +273,7 @@ pub trait IntoIterator { #[rustc_const_unstable(feature = "const_intoiterator_identity", issue = "90603")] #[stable(feature = "rust1", since = "1.0.0")] -impl<I: Iterator> const IntoIterator for I { +impl<I: Iterator> IntoIterator for I { type Item = I::Item; type IntoIter = I; |