Appending to a mutable vector in a hashmap doesn't update the vector #2039
Description
import std::map;
import std::map::hashmap;
use std;
type mut_elts = {mutable elts: [int]};
fn main() {
let elts_hash = map::str_hash::();
elts_hash.insert("foo", {mutable elts: []});
elts_hash.get("foo").elts += [1];
#error("%u", vec::len(elts_hash.get("foo").elts));
}
I would expect to see 1 printed, but instead I see 0.