shithub: mc

ref: ba1476058afaffc3f24ca8fbde11234def04d1bf
dir: /test/matchctup.myr/

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use std

const main = {
	match (gen_a(), gen_b())
	| (`std.Err _, _): std.put("error case 1")
	| (_, `std.Err _): std.put("error case 2")
	| (`std.Ok L, `std.Ok N):
		std.put("l = {} n = {}\n", L, N)
	;;
}

var gen_a : (-> std.result(byte[:][:], void)) = {
	var ret = [][:]

	for var j = 0; j < 4; ++j
		std.slpush(&ret, std.fmt("{}", j))
	;;

	if 1 + 1 > 3
		-> `std.Err void
	;;

	-> `std.Ok ret
}

var gen_b : (-> std.result(int, void)) = {
	if 1 + 1 > 3
		-> `std.Err void
	;;

	-> `std.Ok 5
}