macro_rules! make_index_trait {
([<$($lft:lifetime),*>, $ty:ident, $trait:ident, $notrait:ident, $f:ident, $f_mut:ident]
$($fns:item)*) => { ... };
}
Expand description
Constructs a new trait for accessing a subcomponent of the index data, with automatic
impls for ()
, (A, B)
and the subcomponent itself.