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| author | oxalica <oxalicc@pm.me> | 2021-07-17 00:19:44 +0800 |
|---|---|---|
| committer | oxalica <oxalicc@pm.me> | 2021-07-17 00:19:44 +0800 |
| commit | 774a79e3fd40dee6dcdb80ef57e9e49a6d38d381 (patch) | |
| tree | a7c2519f2d73b647ec7f1a0030d26795d573400a | |
| parent | a6470c7fa8a511cfbcf9e9d3e1ab6779ac661edb (diff) | |
| download | rust-774a79e3fd40dee6dcdb80ef57e9e49a6d38d381.tar.gz rust-774a79e3fd40dee6dcdb80ef57e9e49a6d38d381.zip | |
Mark `Option::insert` as must_use
| -rw-r--r-- | library/core/src/option.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/library/core/src/option.rs b/library/core/src/option.rs index b7af3ea8c1a..d1308549113 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -1179,6 +1179,7 @@ impl<T> Option<T> { /// *val = 3; /// assert_eq!(opt.unwrap(), 3); /// ``` + #[must_use = "if you intended to set a value, consider assignment instead"] #[inline] #[stable(feature = "option_insert", since = "1.53.0")] pub fn insert(&mut self, value: T) -> &mut T { |