Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
87 lines
2.1 KiB
Dart
87 lines
2.1 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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// Test that field initializers are evaluated in the right order.
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int counter = 0;
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class Mark {
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static StringBuffer buffer;
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Mark(value) {
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buffer.write('$value.');
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}
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}
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class OneField {
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var a = new Mark('a');
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OneField();
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OneField.init() : a = new Mark('ai');
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}
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class TwoFields {
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var b = new Mark('b');
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var a = new Mark('a');
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TwoFields();
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TwoFields.initA() : a = new Mark('ai');
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TwoFields.initB() : b = new Mark('bi');
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TwoFields.initBoth()
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: a = new Mark('ai'),
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b = new Mark('bi');
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}
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class InheritOneField extends OneField {
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var b = new Mark('b');
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InheritOneField() : super();
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InheritOneField.init()
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: b = new Mark('bi'),
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super();
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InheritOneField.superWithInit() : super.init();
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InheritOneField.initWithSuperInit_correctOrder()
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: b = new Mark('bi'),
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super.init();
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InheritOneField.initWithSuperInit_incorrectOrder()
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:
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super.init(), //# 01: compile-time error
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b = new Mark('bi')
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, super.init() //# none: ok
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;
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}
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String run(callback) {
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Mark.buffer = new StringBuffer();
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callback();
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return Mark.buffer.toString();
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}
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main() {
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Expect.equals('a.', run(() => new OneField()));
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Expect.equals('a.ai.', run(() => new OneField.init()));
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Expect.equals('b.a.', run(() => new TwoFields()));
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Expect.equals('b.a.ai.', run(() => new TwoFields.initA()));
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Expect.equals('b.a.bi.', run(() => new TwoFields.initB()));
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Expect.equals('b.a.ai.bi.', run(() => new TwoFields.initBoth()));
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Expect.equals('b.a.', run(() => new InheritOneField()));
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Expect.equals('b.bi.a.', run(() => new InheritOneField.init()));
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Expect.equals('b.a.ai.', run(() => new InheritOneField.superWithInit()));
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Expect.equals(
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'b.bi.a.ai.', run(() => new InheritOneField.initWithSuperInit_correctOrder()));
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Expect.equals(
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'b.bi.a.ai.', run(() => new InheritOneField.initWithSuperInit_incorrectOrder()));
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}
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