Shared via Rust Playground

playground.rs

struct Lib {
    // whatever... but it implements Drop
}

impl Lib {
    fn get_widget() -> &LibWidget {
        // unimportant (I think), but LibWidget implements Drop
    }
}




struct Thing<'a> {
    lib_obj: &'a Lib,
    lib_widget: &'a LibWidget,
}

impl<'a> Thing<'a> {
    fn new(lib: &'a Lib) -> Thing {
        let widget = lib.get_widget();
        
        Thing {
            lib_obj: lib,
            lib_widget: widget,
        }
    }
}



fn main() {
    let lib = Lib::new();
    let thing = Thing::new(&lib);
    
    // do stuff with thing...
}