SM.empty))
| two func _ _ (_, es) = badArgs (func, es)
+fun three func (name1, arg1, name2, arg2, name3, arg3) f (_, [e1, e2, e3]) =
+ (case (arg1 e1, arg2 e2, arg3 e3) of
+ (NONE, _, _) => badArg (func, name1, e1)
+ | (_, NONE, _) => badArg (func, name2, e2)
+ | (_, _, NONE) => badArg (func, name3, e3)
+ | (SOME v1, SOME v2, SOME v3) => (f (v1, v2, v3);
+ SM.empty))
+ | three func _ _ (_, es) = badArgs (func, es)
fun oneV func (name, arg) f (evs, [e]) =
(case arg e of
fun action_none name f = registerAction (name, none name f)
fun action_one name args f = registerAction (name, one name args f)
fun action_two name args f = registerAction (name, two name args f)
+fun action_three name args f = registerAction (name, three name args f)
fun actionV_none name f = registerAction (name, fn (env, _) => (f env; env))
fun actionV_one name args f = registerAction (name, oneV name args f)