Two leveles of modules

---

examples/modules/two-levels-of-modules/src/main.rs

#![allow(dead_code)]

fn main() {
    println!("in main");
    //house::live();
    //crate::house::live();

    // kitchen is private
    //house::kitchen::cook();
    //crate::house::kitchen::cook();
    
    //crate::house::bathroom::shower();
    //house::bathroom::shower();

    house::bathroom::shaving();
}


mod house {
    pub fn live() {
        println!("live");
        kitchen::cook();
        bathroom::shower();
    }


    mod kitchen {
        pub fn cook() {
            println!("cook");
            peal_potatoes();
        }
        fn peal_potatoes() {
            println!("peal_potatoes");
        }

        pub fn doing_dishes() {
            println!("doing_dishes");
            
        }

    }


    pub mod bathroom {
        pub fn shower() {
            println!("shower");
            use_soap()
        }

        fn use_soap() {
            println!("use_soap");
        }

        pub fn shaving() {
            println!("shaving");
            crate::house::kitchen::cook();
            super::kitchen::cook();   
        }

    }
}