38     ) -> syn::Result<Self> {  in new_function()
47     ) -> syn::Result<Self> {  in new_method()
62     ) -> syn::Result<Self> {  in new_constructor()
78     ) -> syn::Result<Self> {  in new_trait_method()
94     ) -> syn::Result<Self> {  in new()
107             .map(|a| Arg::new(a, &mut defaults))  in new()
112             .map(|a| match a {  in new()
120             .map(|a| {  in new()
152     pub fn lower_return_impl(&self) -> TokenStream {  in lower_return_impl()
159     pub fn lift_return_impl(&self) -> TokenStream {  in lift_return_impl()
169     ///   - The lifted argument tuple on success
170     ///   - The field name and error on failure (`Err(&'static str, anyhow::Error>`)
171     pub fn lift_closure(&self, self_lift: Option<TokenStream>) -> TokenStream {  in lift_closure()
172         let arg_lifts = self.args.iter().map(|arg| {  in lift_closure()
195     pub fn rust_call_params(&self, self_lift: bool) -> TokenStream {  in rust_call_params()
197         let args = self.args.iter().enumerate().map(|(i, arg)| {  in rust_call_params()
211     pub fn params(&self) -> impl Iterator<Item = TokenStream> + '_ {  in params()
212         self.args.iter().map(NamedArg::param)  in params()
216     pub fn scaffolding_fn_ident(&self) -> syn::Result<Ident> {  in scaffolding_fn_ident()
233     pub fn scaffolding_param_names(&self) -> impl Iterator<Item = TokenStream> + '_ {  in scaffolding_param_names()
234         self.args.iter().map(|a| {  in scaffolding_param_names()
240     pub fn scaffolding_param_types(&self) -> impl Iterator<Item = TokenStream> + '_ {  in scaffolding_param_types()
241         self.args.iter().map(|a| {  in scaffolding_param_types()
248     pub(crate) fn metadata_expr(&self) -> syn::Result<TokenStream> {  in metadata_expr()
266             .map(NamedArg::arg_metadata)  in metadata_expr()
277                     .concat(<#return_ty as ::uniffi::LowerReturn<crate::UniFfiTag>>::TYPE_ID_META)  in metadata_expr()
291 …                     .concat(<#return_ty as ::uniffi::LowerReturn<crate::UniFfiTag>>::TYPE_ID_META)  in metadata_expr()
307 …                     .concat(<#return_ty as ::uniffi::LowerReturn<crate::UniFfiTag>>::TYPE_ID_META)  in metadata_expr()
322 …                     .concat(<#return_ty as ::uniffi::LowerReturn<crate::UniFfiTag>>::TYPE_ID_META)  in metadata_expr()
329     pub(crate) fn metadata_items(&self) -> syn::Result<TokenStream> {  in metadata_items()
382     pub(crate) fn metadata_items_for_callback_interface(&self) -> syn::Result<TokenStream> {  in metadata_items_for_callback_interface()
405                     .map(NamedArg::arg_metadata)  in metadata_items_for_callback_interface()
416 …                      .concat(<#return_ty as ::uniffi::LiftReturn<crate::UniFfiTag>>::TYPE_ID_META)  in metadata_items_for_callback_interface()
434     pub(crate) fn checksum_symbol_name(&self) -> String {  in checksum_symbol_name()
465     fn new(syn_arg: FnArg, defaults: &mut DefaultMap) -> syn::Result<Self> {  in new()
478     pub(crate) fn is_receiver(&self) -> bool {  in is_receiver()
489     fn from(receiver: Receiver) -> Self {  in from()
513     pub(crate) fn new(ident: Ident, ty: &Type, defaults: &mut DefaultMap) -> syn::Result<Self> {  in new()
535     pub(crate) fn lift_impl(&self) -> TokenStream {  in lift_impl()
540     pub(crate) fn lower_impl(&self) -> TokenStream {  in lower_impl()
546     pub(crate) fn param(&self) -> TokenStream {  in param()
552     pub(crate) fn arg_metadata(&self) -> syn::Result<TokenStream> {  in arg_metadata()
558             .concat(#lift_impl::TYPE_ID_META)  in arg_metadata()
564 fn looks_like_result(return_type: &ReturnType) -> bool {  in looks_like_result()