map-macro 0.3.0

Declarative macros for statically initializing collections
Documentation 
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use map_macro::hash_set;

#[test]
fn hash_set1() {
    let s = hash_set! { "a", "b", "c", "d" };

    assert_eq!(s.len(), 4);

    assert!(s.contains("a"));
    assert!(s.contains("b"));
    assert!(s.contains("c"));
    assert!(s.contains("d"));

    assert!(!s.contains("e"));
}

#[test]
fn hash_set2() {
    let s = hash_set! { 0, 1, 2, 3, 0 };

    assert_eq!(s.len(), 4);

    assert!(s.contains(&0));
    assert!(s.contains(&1));
    assert!(s.contains(&2));
    assert!(s.contains(&3));

    assert!(!s.contains(&4));
}