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