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/// 创建一个HashMap
///
/// ```rust
/// use dev_tool::macro_util::map;
/// let map = map!{"a" => 1, "b" => 2, "c" => 3};
/// ```
#[macro_export]
macro_rules! map {
($($key:expr => $value:expr),*) => {
{
let mut map = ::std::collections::HashMap::new();
$(
map.insert($key, $value);
)*
map
}
};
}
/// 创建一个HashSet
///
/// ```rust
/// use dev_tool::macro_util::set;
/// let set = set!("a", "b", "c");
/// ```
#[macro_export]
macro_rules! set {
($($value:expr), *) => {
{
let mut v = ::std::collections::HashSet::new();
$(
v.insert($value);
)*
v
}
};
}
#[test]
fn it_works() {
let set = set!("a", "b");
println!("{:?}", set);
let map = map!{
"a" => 1,
"b" => 2
};
println!("{:?}", map);
}