Macro match_source_name_str_inner

macro_rules! match_source_name_str_inner {
    (
        {$({$source_variant:ident, $prop_name:ty, $split:ty }),*},
        $source_name_str:expr,
        $prop_type_name:ident,
        $body:expr,
        $on_other_closure:expr
    ) => { ... };
}