// printing any struct with no printing code: the heap knows each object's
// type, and reflection walks its fields
struct person { *char name; int age; };
struct item { *char name; int count; *person owner; };

fn dump(p)
{
	let t = typeof_obj(p), i = 0;
	if (!t) { puts("?"); return 0; }
	tprint(t); puts(" { ");
	while (i < tnfields(t)) {
		let ft = tftype(t, i), v = p[tfoff(t, i)];
		if (i) puts(", ");
		puts(tfname(t, i)); puts(": ");
		if (tkind(ft) == TY_PTR && telem(ft) == typeof(char)) { putc('"'); puts(v); putc('"'); }
		else if (tkind(ft) == TY_PTR) { if (v) dump(v); else puts("null"); }
		else putn(v);
		i++;
	}
	puts(" }");
	return 0;
}
fn main()
{
	*person ana = new(person);
	ana.name = "ana"; ana.age = 30;
	*item lamp = new(item);
	lamp.name = "lamp"; lamp.count = 3; lamp.owner = ana;
	dump(lamp); putc(10);
	free(d*lamp);
	return 0;
}