fn unsafe_attr_name_value_lookup()

in src/bindgen/utilities.rs [258:282]

• 25 lines of code
• 5 McCabe index (conditional complexity)

    fn unsafe_attr_name_value_lookup(&self, name: &str) -> Option<String> {
        self.attrs()
            .iter()
            .filter_map(|attr| {
                let syn::Meta::List(list) = &attr.meta else { return None };
                if !list.path.is_ident("unsafe") {
                    return None;
                }
                let parser = syn::punctuated::Punctuated::<syn::MetaNameValue, syn::Token![,]>::parse_terminated;
                let Ok(args) = list.parse_args_with(parser) else { return None };
                for arg in args {
                    if !arg.path.is_ident(name) {
                        continue;
                    }
                    if let syn::Expr::Lit(syn::ExprLit {
                        lit: syn::Lit::Str(lit),
                        ..
                    }) = arg.value {
                        return Some(lit.value());
                    }
                }
                None
            })
            .next()
    }