//ww:run-exit 79
package main;
type box = struct { n: i64, m: i32, name: str, xs: []u8 };
type tv = (i64 | void);
export fn main() i32 = {
	let inner: []u8 = [];
	append(inner, 7u8);
	append(inner, 8u8);
	let bs: []box = [];
	append(bs, box { n = 41, m = 9, name = "hello", xs = inner });
	let ns: []i64 = [];
	append(ns, bs[0].n);
	let ms: []i32 = [];
	append(ms, bs[0].m);
	let ss: []str = [];
	append(ss, bs[0].name);
	let vs: [][]u8 = [];
	append(vs, bs[0].xs);
	let ts: []tv = [];
	append(ts, bs[0].n);
	if (len(ns) != 1 || ns[0] != 41) { return 1; };
	if (len(ms) != 1 || ms[0] != 9) { return 2; };
	if (len(ss) != 1 || len(ss[0]) != 5) { return 3; };
	if (len(vs) != 1 || len(vs[0]) != 2) { return 4; };
	if (vs[0][1] != 8u8) { return 5; };
	match (ts[0]) {
	case let v: i64 => { if (v != 41) { return 6; }; };
	case void => { return 7; };
	};
	return 79;
};