gistfile1.txt

macro_rules! variant_enum {
    (
        $variant:ident {
            $( 
                $( #[ $oemval:meta ] )*
                $oldvariant:ident => $newvariant:ident
            ),*
        }
    ) => {
        enum $variant {
            $(
                matching_field_extraction!(
                    $variant {
                        $( #[ $oemval ] )*
                        $oldvariant => $newvariant
                    }
                );
            ),*
        }
    };
}