Merge pull request #177 from ivanbakel/cloneable_intoiter

Make TokenStream's IntoIter derive Clone
dtolnay · May 8, 2019 · 1ef4d12 · 1ef4d12
2 parents 79c8ed7 + f6754d3
commit 1ef4d12
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diff --git a/src/lib.rs b/src/lib.rs
@@ -1122,6 +1122,7 @@ pub mod token_stream {
     ///
     /// The iteration is "shallow", e.g. the iterator doesn't recurse into
     /// delimited groups, and returns whole groups as token trees.
+    #[derive(Clone)]
     pub struct IntoIter {
         inner: imp::TokenTreeIter,
         _marker: marker::PhantomData<Rc<()>>,

diff --git a/src/wrapper.rs b/src/wrapper.rs
@@ -318,6 +318,7 @@ impl fmt::Debug for LexError {
     }
 }
 
+#[derive(Clone)]
 pub enum TokenTreeIter {
     Compiler(proc_macro::token_stream::IntoIter),
     Fallback(fallback::TokenTreeIter),