//ww:run-exit 18
package main;
package pkg;
export type point = struct { x: i64, y: i64 };
export type rect = struct { lo: point, hi: point };
package main;
import pkg;
export fn main() i32 = {
	let r: pkg.rect = pkg.rect {
		lo = pkg.point { x = 1i64, y = 2i64 },
		hi = pkg.point { x = 7i64, y = 5i64 }
	};
	if (r.lo.x != 1i64) { return 1; };
	if (r.hi.y != 5i64) { return 2; };
	return ((r.hi.x - r.lo.x) * (r.hi.y - r.lo.y)): i32;
};