Macro sugars::hash

macro_rules! hash {
    ($e:expr) => { ... };
    ($e:expr, $hasher:expr) => { ... };
}

Macro that return the hash of what is passed and also can receive a hasher to use that intead of default HashMap Hasher.

Example

// No Hasher
let hash = hash!("a");
assert_eq!(8_186_225_505_942_432_243, hash);

// With Hasher
let hash = hash!("b", DefaultHasher::new());
assert_eq!(16_993_177_596_579_750_922, hash);