mirror of
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14531fa62d
Only delta from the original is a bad merge of tests/corelib/list_test.dart
This reverts commit 44d8be0ed3.
BUG=
Review-Url: https://codereview.chromium.org/2774783002 .
48 lines
1.3 KiB
Dart
48 lines
1.3 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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abstract class Interface {
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final x;
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}
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abstract class Abstract implements Interface {
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String toString() => x.toString();
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}
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// This class does not implement "x" either, but it is not marked
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// abstract.
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class SubAbstract1 extends Abstract { } //# 01: static type warning
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// This class is implicitly abstract as it declares an abstract getter
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// method.
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class SubAbstract2 extends Abstract {
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get x; // Abstract.
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}
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// This class does not implement "x" either, but it is not marked
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// abstract.
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class SubSubAbstract2 extends SubAbstract2 { } //# 04: static type warning
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class Concrete extends Abstract {
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get x => 7;
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}
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class SubConcrete extends Concrete {
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final x;
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SubConcrete(this.x);
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}
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void main() {
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var x = new Abstract(); //# 02: runtime error
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var y = new SubAbstract1(); //# 01: continued
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var z = new SubAbstract2();
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var a = new SubSubAbstract2(); //# 04: continued
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Expect.equals(x, x); //# 02: continued
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Expect.equals('7', new Concrete().toString());
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Expect.equals('42', new SubConcrete(42).toString());
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Expect.equals('7', new SubConcrete(new Concrete()).toString());
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}
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