Use InvalidArgError() to dsl.Type() more (#3635)

Author: tchssk

dsl/user_type.go

@@ -85,7 +85,7 @@ func Type(name string, args ...any) expr.UserType {
 		if len(args) == 2 {
 			d, ok := args[1].(func())
 			if !ok {
-				eval.ReportError("third argument must be a function")
+				eval.InvalidArgError("function", args[1])
 				return nil
 			}
 			fn = d

eval/eval_test.go

@@ -29,6 +29,7 @@ func TestInvalidArgError(t *testing.T) {
 		"Security":             {func() { Security(1) }, "cannot use 1 (type int) as type security scheme or security scheme name"},
 		"Security (typed nil)": {func() { Security((*expr.SchemeExpr)(nil)) }, "cannot use (*expr.SchemeExpr)(nil) (type *expr.SchemeExpr) as type security scheme"},
 		"Type":                 {func() { Type("name", 1) }, "cannot use 1 (type int) as type type or function"},
+		"Type (DataType)":      {func() { Type("name", String, 1) }, "cannot use 1 (type int) as type function"},
 	}
 	for name, tc := range dsls {
 		t.Run(name, func(t *testing.T) {