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sdk/tests/language_2/constructor/constructor2_test.dart
T
Leaf Petersen b101a7d002 Add language versions to _2 test libraries
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Leaf Petersen <leafp@google.com>
2021-04-26 17:58:57 +00:00

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922 B
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.
// @dart = 2.9
import "package:expect/expect.dart";
// Expect the initializer expressions E(i) to be evaluated
// in the order 1, 2, 3, ...
// Each expression must be evaluated exactly once.
String trace = "";
int E(int i) {
trace += "$i-";
return i;
}
class A {
var a1;
A(x, y) : a1 = E(4) {
Expect.equals(2, x);
Expect.equals(3, y);
Expect.equals(4, a1);
E(6);
}
}
class B extends A {
var b1, b2;
B(x)
: b1 = E(1),
b2 = E(5),
super(E(2), E(3)) {
Expect.equals(1, b1);
Expect.equals(5, b2);
E(7);
}
}
main() {
var b = new B(0);
Expect.equals("1-5-2-3-4-6-7-", trace);
}