607             if !input.peek(Token![<]) {  in parse()
615                 if input.peek(Token![>]) {  in parse()
621                 if lookahead.peek(Lifetime) {  in parse()
626                 } else if lookahead.peek(Ident) {  in parse()
631                 } else if lookahead.peek(Token![const]) {  in parse()
636                 } else if input.peek(Token![_]) {  in parse()
649                 if input.peek(Token![>]) {  in parse()
673             if lookahead.peek(Ident) {  in parse()
678             } else if lookahead.peek(Lifetime) {  in parse()
683             } else if lookahead.peek(Token![const]) {  in parse()
702                     if input.peek(Token![:]) {  in parse()
714                             if input.peek(Token![,]) || input.peek(Token![>]) {  in parse()
719                             if !input.peek(Token![+]) {  in parse()
740                     while !input.peek(Token![>]) {  in parse()
742                         if input.peek(Token![>]) {  in parse()
757             if input.peek(Token![for]) {  in parse()
777                     if input.peek(Token![,]) || input.peek(Token![>]) || input.peek(Token![=]) {  in parse()
780                     if input.peek(Token![?]) && input.peek2(Token![const]) {  in parse()
787                     if !input.peek(Token![+]) {  in parse()
822             if input.peek(Lifetime) {  in parse()
826             if input.peek(token::Paren) {  in parse()
845             if path.segments.last().unwrap().arguments.is_empty() && input.peek(token::Paren) {  in parse()
862             if input.peek(Token![?]) {  in parse()
881                     if input.peek(Token![=]) {  in parse()
903                             || input.peek(token::Brace)  in parse()
904                             || input.peek(Token![,])  in parse()
905                             || input.peek(Token![;])  in parse()
906                             || input.peek(Token![:]) && !input.peek(Token![::])  in parse()
907                             || input.peek(Token![=])  in parse()
913                         if !input.peek(Token![,]) {  in parse()
928             if input.peek(Token![where]) {  in parse()
939             if input.peek(Lifetime) && input.peek2(Token![:]) {  in parse()
947                                 || input.peek(token::Brace)  in parse()
948                                 || input.peek(Token![,])  in parse()
949                                 || input.peek(Token![;])  in parse()
950                                 || input.peek(Token![:])  in parse()
951                                 || input.peek(Token![=])  in parse()
957                             if !input.peek(Token![+]) {  in parse()
975                                 || input.peek(token::Brace)  in parse()
976                                 || input.peek(Token![,])  in parse()
977                                 || input.peek(Token![;])  in parse()
978                                 || input.peek(Token![:]) && !input.peek(Token![::])  in parse()
979                                 || input.peek(Token![=])  in parse()
985                             if !input.peek(Token![+]) {  in parse()
1199                                         if let Some(TokenTree::Ident(c)) = iter.peek() {  in to_tokens()