Macro declarative_type_state::unit_enum_delegated

macro_rules! unit_enum_delegated {
    (
	    ENUM_OUT: {
		    $( #[$enum_meta: meta] )*
		    $enum_vis: vis enum $enum_ident: ident {
			    $( $var_ident: ident ),*
			    $(,)?
		    }
	    }
	    
	    DELEGATES: {
		    $(
		        impl $( <[ $( $trait_gen: tt )*  ]> )? 
		        trait $trait_ty: path
		        $( where [ $( $trait_bound: tt )* ] )?
		        {
				    $( [ $( $item: tt )* ] )*
			    }
		    )*
		    
		    $(
			    impl {
			        $( [ $( $std_impl: tt )* ] )*
			    }
		    )?
	    }
    ) => { ... };
}