Add must_use to Error constructors

dtolnay · Mar 7, 2022 · 1af20cc · 1af20cc
1 parent 06826d1
commit 1af20cc
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/error.rs b/src/error.rs
@@ -26,6 +26,7 @@ impl Error {
     #[cfg(feature = "std")]
     #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
     #[cold]
+    #[must_use]
     pub fn new<E>(error: E) -> Self
     where
         E: StdError + Send + Sync + 'static,
@@ -72,6 +73,7 @@ impl Error {
     /// }
     /// ```
     #[cold]
+    #[must_use]
     pub fn msg<M>(message: M) -> Self
     where
         M: Display + Debug + Send + Sync + 'static,
@@ -293,6 +295,7 @@ impl Error {
     /// }
     /// ```
     #[cold]
+    #[must_use]
     pub fn context<C>(self, context: C) -> Self
     where
         C: Display + Send + Sync + 'static,