6     if let Some(TokenTree::Ident(ident)) = it.next() {  in try_ident()
14     if let Some(TokenTree::Literal(literal)) = it.next() {  in try_literal()
24             let content = &string[1..string.len() - 1];  in try_string()
42     if let TokenTree::Punct(punct) = it.next().expect("Reached end of token stream for Punct") {  in expect_punct()
54     let string = try_string(it).expect("Expected string");  in expect_string_ascii()
60     if let TokenTree::Group(group) = it.next().expect("Reached end of token stream for Group") {  in expect_group()
83     let mut impl_generics = vec![];  in parse_generics()
85     let mut ty_generics = vec![];  in parse_generics()
87     let mut rest = vec![];  in parse_generics()
89     let mut nesting = 0;  in parse_generics()
90     let mut toks = input.into_iter();  in parse_generics()
92     let mut at_start = true;  in parse_generics()