512 pub enum TokenTree {  enum
523 impl TokenTree {  implementation
550 impl From<Group> for TokenTree {  implementation
551     fn from(g: Group) -> TokenTree {  in from()
556 impl From<Ident> for TokenTree {  implementation
557     fn from(g: Ident) -> TokenTree {  in from()
562 impl From<Punct> for TokenTree {  implementation
563     fn from(g: Punct) -> TokenTree {  in from()
568 impl From<Literal> for TokenTree {  implementation
569     fn from(g: Literal) -> TokenTree {  in from()
578 impl Display for TokenTree {  implementation
590 impl Debug for TokenTree {  implementation
1239         fn next(&mut self) -> Option<TokenTree> {  in next()