Macros for container literals with specific type.
use lit2::*;
# fn main() {
let map = hashmap!{
"a" => 1,
"b" => 2,
};
let set = set!{1, 2, 3};
# }
The lit2 crate uses => syntax to separate the key and value for the
mapping macros. It is also possible to use the : separator, but the keys cannot
be expressions.
Note that rust macros are flexible in which brackets you use for the invocation.
You can use them as hashmap!{} or hashmap![] or hashmap!().
Generic container macros already exist elsewhere, so those are not provided here at the moment.