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| author | Obei Sideg <obei.sideg@gmail.com> | 2023-02-16 22:04:59 +0300 |
|---|---|---|
| committer | Obei Sideg <obei.sideg@gmail.com> | 2023-02-23 13:57:06 +0300 |
| commit | a914f37409f0ff0cdee37bfc959d77f91f3bcb0c (patch) | |
| tree | daab9a0ea95f8cd923ac5ebe5339afddc3048c91 /library | |
| parent | 8b1dbf728add722d4db894b9b986ec24e1cdb0a1 (diff) | |
| download | rust-a914f37409f0ff0cdee37bfc959d77f91f3bcb0c.tar.gz rust-a914f37409f0ff0cdee37bfc959d77f91f3bcb0c.zip | |
Add lint against `Iterator::map` receiving a callable that returns `()`
Diffstat (limited to 'library')
| -rw-r--r-- | library/core/src/iter/mod.rs | 1 | ||||
| -rw-r--r-- | library/core/src/iter/traits/iterator.rs | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/library/core/src/iter/mod.rs b/library/core/src/iter/mod.rs index 156b925de77..ae00232c12c 100644 --- a/library/core/src/iter/mod.rs +++ b/library/core/src/iter/mod.rs @@ -278,6 +278,7 @@ //! //! ``` //! # #![allow(unused_must_use)] +//! # #![cfg_attr(not(bootstrap), allow(map_unit_fn))] //! let v = vec![1, 2, 3, 4, 5]; //! v.iter().map(|x| println!("{x}")); //! ``` diff --git a/library/core/src/iter/traits/iterator.rs b/library/core/src/iter/traits/iterator.rs index 9e3e13e7004..5d272ec3522 100644 --- a/library/core/src/iter/traits/iterator.rs +++ b/library/core/src/iter/traits/iterator.rs @@ -777,6 +777,7 @@ pub trait Iterator { /// println!("{x}"); /// } /// ``` + #[rustc_diagnostic_item = "IteratorMap"] #[inline] #[stable(feature = "rust1", since = "1.0.0")] fn map<B, F>(self, f: F) -> Map<Self, F> |