| /* |
| * Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /** |
| * @assertion A read of a field or variable which is marked as late which has |
| * not yet been written to causes the initializer expression of the variable to |
| * be evaluated to a value, assigned to the variable or field, and returned as |
| * the value of the read. |
| * |
| * If there is no initializer expression, the read causes a runtime error to be |
| * thrown which is an instance of LateInitializationError |
| * |
| * @description Check that it is a runtime error to read late variable without |
| * initializer expression |
| * @author sgrekhov@unipro.ru |
| * @issue 39801 |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| // Requirements=nnbd-strong |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| static late final String? s1; |
| static late String? s2; |
| covariant late String? v1; |
| late final String? v2; |
| late String? v3; |
| } |
| |
| late final String? g1; |
| late String? g2; |
| |
| main() { |
| late final String? l1; |
| late String? l2; |
| |
| Expect.throws(() {C.s1;}, (e) => e is LateInitializationError); |
| Expect.throws(() {C.s2;}, (e) => e is LateInitializationError); |
| C c = new C(); |
| Expect.throws(() {c.v1;}, (e) => e is LateInitializationError); |
| Expect.throws(() {c.v2;}, (e) => e is LateInitializationError); |
| Expect.throws(() {c.v3;}, (e) => e is LateInitializationError); |
| |
| Expect.throws(() {g1;}, (e) => e is LateInitializationError); |
| Expect.throws(() {g2;}, (e) => e is LateInitializationError); |
| Expect.throws(() {l1;}, (e) => e is LateInitializationError); |
| Expect.throws(() {l2;}, (e) => e is LateInitializationError); |
| } |