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use std
/* checks pattern matching on unions with arguments.
exits with 42. */
type u = union
	`Int int
	`Chr char
	`Nil
;;

const main = {
	var v

	v = `Int 123
	match v
	| `Int 127:	 std.exit(42)
	| `Int 123:	 std.exit(69)
	| `Chr 'a':	 std.exit(4)
	| `Nil:	 std.exit(6)
	;;
}