dart-sdk/tests/language_2/constructor_test.dart
Jaime Wren 89b700eddd Migrated test block 54 to Dart 2.0
Some status files touched, and some constructor initializations re-ordedered to get DDC to pass.

Some context: https://www.dartlang.org/guides/language/effective-dart/usage#do-place-the-super-call-last-in-a-constructor-initialization-list

Change-Id: Ifd371214c5620a7745d5cfbf250922ca6d67bc95
Reviewed-on: https://dart-review.googlesource.com/4083
Commit-Queue: Jaime Wren <jwren@google.com>
Reviewed-by: Janice Collins <jcollins@google.com>
2017-09-18 18:39:12 +00:00

65 lines
1.2 KiB
Dart

// Copyright (c) 2011, 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.
// Dart test program for constructors and initializers.
import "package:expect/expect.dart";
class A extends B {
A(x, y)
: a = x,
super(y) {}
var a;
}
class B {
var b;
B(x) : b = x {}
B.namedB(var x) : b = x {}
}
// Test the order of initialization: first the instance variable then
// the super constructor.
abstract class Alpha {
Alpha(v) {
this.foo(v);
}
foo(v) => throw 'Alpha.foo should never be called.';
}
class Beta extends Alpha {
Beta(v)
: b = 1,
super(v) {}
foo(v) {
// Check that 'b' was initialized.
Expect.equals(1, b);
b = v;
}
var b;
}
class ConstructorTest {
static testMain() {
var o = new A(10, 2);
Expect.equals(10, o.a);
Expect.equals(2, o.b);
var o1 = new B.namedB(10);
Expect.equals(10, o1.b);
Expect.equals(22, o.a + o.b + o1.b);
var beta = new Beta(3);
Expect.equals(3, beta.b);
}
}
main() {
ConstructorTest.testMain();
}