impl Peekable for std::iter::Peekable

jyn514 · May 20, 2020 · aba0e76 · aba0e76
1 parent a1ed0f1
commit aba0e76
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/lex/replace.rs b/src/lex/replace.rs
@@ -18,6 +18,12 @@ impl Peekable for FileProcessor {
     }
 }
 
+impl<T: Iterator> Peekable for std::iter::Peekable<T> {
+    fn peek(&mut self) -> Option<&Self::Item> {
+        self.peek()
+    }
+}
+
 pub struct MacroReplacer<I: Iterator<Item = CppResult<Token>>> {
     /// The ids seen while replacing the current token.
     ///