Add #[derive(Clone)] to TokenTreeIter

rust-lang · Jul 17, 2017 · b525abb · b525abb
1 parent 88cf76a
commit b525abb
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/libproc_macro/lib.rs b/src/libproc_macro/lib.rs
@@ -375,6 +375,7 @@ impl Literal {
 }
 
 /// An iterator over `TokenTree`s.
+#[derive(Clone)]
 #[unstable(feature = "proc_macro", issue = "38356")]
 pub struct TokenTreeIter {
     cursor: tokenstream::Cursor,