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default_kwargs's Issues

use `Generics::split_for_impl`

default_kwargs/src/default_args.rs

Lines 82 to 116 in 158d180

let generics_of_default_args = self.sig.inputs_with_defaults.pairs().filter_map(|p| {
if self.sig.generics.params.pairs().any(|ty_par| {
*match ty_par.value() {
syn::GenericParam::Type(ty) => &ty.ident,
syn::GenericParam::Lifetime(lt) => &lt.lifetime.ident,
syn::GenericParam::Const(co) => &co.ident,
} == p.value().ty.to_token_stream().to_string()
}) {
Some(&p.value().ty)
} else {
None
}
});
let where_clause = &self.sig.generics.where_clause;
let generics_decl = generics_of_default_args.clone();
let strukt = quote! {
#[allow(unused)]
// #[allow(non_camel_case_types)]
#vis struct #struct_name <#(#generics_decl),*> #where_clause {
#vis #(#typed_fields),*
}
};
tokens.extend([strukt]);
let generics_decl = generics_of_default_args.clone();
let default_impl = quote! {
impl <#(#generics_decl),*>::core::default::Default for #struct_name <#(#generics_of_default_args),*> #where_clause {
fn default() -> Self {
Self {
#(#field_with_defaults),*
}
}
}
};
tokens.extend([default_impl]);

https://docs.rs/syn/latest/syn/struct.Generics.html#method.split_for_impl

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