1 #![feature(half_open_range_patterns_in_slices)]
2 #![feature(exclusive_range_pattern)]
5 let xs = [13, 1, 5, 2, 3, 1, 21, 8];
6 let [a, b, c, rest @ ..] = xs;
7 // Consider the following example:
8 assert!(a == 13 && b == 1 && c == 5 && rest.len() == 5);
10 // What if we wanted to pull this apart without individually binding a, b, and c?
11 let [first_three @ ..3, rest @ 2..] = xs;
12 //~^ pattern requires 2 elements but array has 8
13 // This is somewhat unintuitive and makes slice patterns exceedingly verbose.
14 // We want to stabilize half-open RangeFrom (`X..`) patterns
15 // but without banning us from using them for a more efficient slice pattern syntax.