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-rw-r--r--src/libstd/sys/wasm/args.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libstd/sys/wasm/args.rs b/src/libstd/sys/wasm/args.rs
index b3c77b86995..6766099c1ec 100644
--- a/src/libstd/sys/wasm/args.rs
+++ b/src/libstd/sys/wasm/args.rs
@@ -37,6 +37,10 @@ impl Iterator for Args {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.iter.size_hint()
     }
+    #[inline]
+    fn last(mut self) -> Option<OsString> {
+        self.next_back()
+    }
 }
 
 impl ExactSizeIterator for Args {