Macro vstd::map

macro_rules! map {
    [$($tail:tt)*] => { ... };
}

Create a map using syntax like map![key1 => val1, key2 => val, ...].

This is equivalent to Map::empty().insert(key1, val1).insert(key2, val2)....

Note that this does not require all keys to be distinct. In the case that two or more keys are equal, the resulting map uses the value of the rightmost entry.