Files
sdk/tests/language/const/constructor_super_test.dart
T
Robert Nystrom e736495eb7 Migrate language_2/const to NNBD.
Change-Id: I464275799b3e7a21326d35503b776f9c1101a599
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141764
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
2020-04-03 00:56:36 +00:00

42 lines
1.1 KiB
Dart

// Copyright (c) 2013, 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.
import "package:expect/expect.dart";
class A {
final a;
A(this.a); // Not const.
const A.five() : a = 5;
}
class B extends A {
final b;
B(x)
: b = x + 1,
super(x);
// Const constructor cannot call non-const super constructor.
const B.zerofive() : b = 0, super(5);
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER
// [cfe] A constant constructor can't call a non-constant super constructor.
}
class C extends A {
C() : super(0);
// Implicit call to non-const constructor A(x).
const C.named(x);
// ^
// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER
// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
// ^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
}
main() {
var b = new B.zerofive();
var b1 = new B(0);
var c = new C.named("");
}