static void write_class_usings()

in cppwinrt/code_writers.h [2343:2392]

• 47 lines of code
• 15 McCabe index (conditional complexity)

    static void write_class_usings(writer& w, TypeDef const& type)
    {
        auto type_name = type.TypeName();
        auto default_interface = get_default_interface(type);
        auto default_interface_name = w.write_temp("%", default_interface);
        std::map<std::string_view, std::set<std::string>> method_usage;

        for (auto&& [interface_name, info] : get_interfaces(w, type))
        {
            if (info.defaulted && !info.base)
            {
                for (auto&& method : info.type.MethodList())
                {
                    method_usage[get_name(method)].insert(default_interface_name);
                }
            }
            else
            {
                for (auto&& method : info.type.MethodList())
                {
                    method_usage[get_name(method)].insert(interface_name);
                }
            }
        }

        for (auto&& [method_name, interfaces] : method_usage)
        {
            if (interfaces.size() <= 1)
            {
                continue;
            }

            for (auto&& interface_name : interfaces)
            {
                if (default_interface_name == interface_name)
                {
                    w.write("        using %::%;\n",
                        interface_name,
                        method_name);
                }
                else
                {
                    w.write("        using impl::consume_t<%, %>::%;\n",
                        type_name,
                        interface_name,
                        method_name);
                }
            }
        }
    }