Macro z_raw_borrow_enum_field

macro_rules! z_raw_borrow_enum_field {
    (
        $pointer:expr,
        $enum:ident::$variant:ident.$field:tt : $field_ty:ty
    ) => { ... };
}

For creating a raw pointer of an enum field,as either Some(NonNull<_>) or None.

Safety

The $pointer must be raw pointer to a valid(and fully initialized) instance of the $enum type.

Example

For an example of using this macro look at the manual implementation example for GetVariantFieldMut