Macro result_like::option_like

macro_rules! option_like {
    (pub $(($pub:ident))? $Option:ident, $Some:ident, $None:ident) => { ... };
    ( $Option:ident, $Some:ident, $None:ident) => { ... };
    (pub $(($pub:ident))? $Option:ident) => { ... };
    ($Option:ident) => { ... };
}