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Add #[derive(Clone)] to TokenTreeIter

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Chris Wong 2017-07-17 20:34:13 +12:00
parent 88cf76a64e
commit b525abb7b2
1 changed files with 1 additions and 0 deletions
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1
src/libproc_macro/lib.rs
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@ -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,