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Add must_use to StrExt methods
| -rw-r--r-- | lib/smol_str/src/lib.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/smol_str/src/lib.rs b/lib/smol_str/src/lib.rs index 79a22b6021..192f972353 100644 --- a/lib/smol_str/src/lib.rs +++ b/lib/smol_str/src/lib.rs @@ -551,24 +551,28 @@ pub trait StrExt: private::Sealed { /// potentially without allocating. /// /// See [`str::to_lowercase`]. + #[must_use = "this returns a new SmolStr without modifying the original"] fn to_lowercase_smolstr(&self) -> SmolStr; /// Returns the uppercase equivalent of this string slice as a new [`SmolStr`], /// potentially without allocating. /// /// See [`str::to_uppercase`]. + #[must_use = "this returns a new SmolStr without modifying the original"] fn to_uppercase_smolstr(&self) -> SmolStr; /// Returns the ASCII lowercase equivalent of this string slice as a new [`SmolStr`], /// potentially without allocating. /// /// See [`str::to_ascii_lowercase`]. + #[must_use = "this returns a new SmolStr without modifying the original"] fn to_ascii_lowercase_smolstr(&self) -> SmolStr; /// Returns the ASCII uppercase equivalent of this string slice as a new [`SmolStr`], /// potentially without allocating. /// /// See [`str::to_ascii_uppercase`]. + #[must_use = "this returns a new SmolStr without modifying the original"] fn to_ascii_uppercase_smolstr(&self) -> SmolStr; } |