805         pub inputs: Punctuated<FnArg, Token![,]>,
816             FnArg::Receiver(receiver) => Some(receiver),  in receiver()
817             FnArg::Typed(_) => None,  in receiver()
825     pub enum FnArg {
917         FnArg, ForeignItem, ForeignItemFn, ForeignItemMacro, ForeignItemStatic, ForeignItemType,
1586     impl Parse for FnArg {  implementation
1591                 FnArgOrVariadic::FnArg(arg) => Ok(arg),  in parse()
1598         FnArg(FnArg),  enumerator
1611             return Ok(FnArgOrVariadic::FnArg(FnArg::Receiver(receiver)));  in parse_fn_arg_or_variadic()
1619             return Ok(FnArgOrVariadic::FnArg(FnArg::Typed(PatType {  in parse_fn_arg_or_variadic()
1644         Ok(FnArgOrVariadic::FnArg(FnArg::Typed(PatType {  in parse_fn_arg_or_variadic()
1699     ) -> Result<(Punctuated<FnArg, Token![,]>, Option<Variadic>)> {  in parse_fn_args()  argument
1723                 FnArgOrVariadic::FnArg(arg) => arg,  in parse_fn_args()
1738                 FnArg::Receiver(receiver) if has_receiver => {  in parse_fn_args()
1744                 FnArg::Receiver(receiver) if !args.is_empty() => {  in parse_fn_args()
1750                 FnArg::Receiver(_) => has_receiver = true,  in parse_fn_args()
1751                 FnArg::Typed(_) => {}  in parse_fn_args()