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authorZack M. Davis <code@zackmdavis.net>2018-10-11 23:10:37 -0700
committerZack M. Davis <code@zackmdavis.net>2018-10-12 22:01:43 -0700
commitab91a6b4df04a60cf19682b1f016848d3e4784ad (patch)
tree10fd45f1eaf3b09a4b84b5f1c8154e46d2334042 /src/liballoc
parentc47785f6beb7f2047b2915c42d1d3d4c0ab0abf0 (diff)
downloadrust-ab91a6b4df04a60cf19682b1f016848d3e4784ad.tar.gz
rust-ab91a6b4df04a60cf19682b1f016848d3e4784ad.zip
`#[must_use]` for associated functions is supposed to actually work
In the comments of (closed, defunct) pull request #54884, Mazdak
"Centril" Farrokhzad noted that must-use annotations didn't work on an
associated function (what other communities might call a "static
method"). Subsequent logging revealed that in this case we have a
`Def::Method`, whereas the lint pass was only matching on
`Def::Fn`. (One could argue that those def-names are thereby
misleading—must-use for self-ful methods have always worked—but
documenting or reworking that can be left to another day.)
Diffstat (limited to 'src/liballoc')
-rw-r--r--src/liballoc/rc.rs4
-rw-r--r--src/liballoc/sync.rs4
2 files changed, 4 insertions, 4 deletions
diff --git a/src/liballoc/rc.rs b/src/liballoc/rc.rs
index 915b8e7787e..40bb2faa362 100644
--- a/src/liballoc/rc.rs
+++ b/src/liballoc/rc.rs
@@ -867,7 +867,7 @@ impl<T: ?Sized> Clone for Rc<T> {
     ///
     /// let five = Rc::new(5);
     ///
-    /// Rc::clone(&five);
+    /// let _ = Rc::clone(&five);
     /// ```
     #[inline]
     fn clone(&self) -> Rc<T> {
@@ -1304,7 +1304,7 @@ impl<T: ?Sized> Clone for Weak<T> {
     ///
     /// let weak_five = Rc::downgrade(&Rc::new(5));
     ///
-    /// Weak::clone(&weak_five);
+    /// let _ = Weak::clone(&weak_five);
     /// ```
     #[inline]
     fn clone(&self) -> Weak<T> {
diff --git a/src/liballoc/sync.rs b/src/liballoc/sync.rs
index 9e245fbd7bb..35935861fb1 100644
--- a/src/liballoc/sync.rs
+++ b/src/liballoc/sync.rs
@@ -713,7 +713,7 @@ impl<T: ?Sized> Clone for Arc<T> {
     ///
     /// let five = Arc::new(5);
     ///
-    /// Arc::clone(&five);
+    /// let _ = Arc::clone(&five);
     /// ```
     #[inline]
     fn clone(&self) -> Arc<T> {
@@ -1135,7 +1135,7 @@ impl<T: ?Sized> Clone for Weak<T> {
     ///
     /// let weak_five = Arc::downgrade(&Arc::new(5));
     ///
-    /// Weak::clone(&weak_five);
+    /// let _ = Weak::clone(&weak_five);
     /// ```
     #[inline]
     fn clone(&self) -> Weak<T> {