mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 15:01:29 +00:00
ed571882d2
Change-Id: I2f638cbf6b0fc6e91b3666143a34eb12a66c6fea Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141780 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Leaf Petersen <leafp@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
56 lines
1.3 KiB
Dart
56 lines
1.3 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";
|
|
|
|
// Super initializer and super constructor body are executed in with the same
|
|
// bindings.
|
|
|
|
String trace = "";
|
|
|
|
int E(int i) {
|
|
trace = "$trace$i-";
|
|
return i;
|
|
}
|
|
|
|
class A {
|
|
// f closes-over arg. arg needs to be preserved while b2 is initialized.
|
|
A(arg)
|
|
: a = E(arg += 1),
|
|
f = (() => E(arg += 10)) {
|
|
// b2 should be initialized between the above initializers and the following
|
|
// statements.
|
|
var r1 = f();
|
|
E(arg += 100); // If this is the same arg as closed by f, ...
|
|
var r2 = f(); // .. the effect of +=100 will be seen here.
|
|
}
|
|
final a;
|
|
final f;
|
|
}
|
|
|
|
class B extends A {
|
|
// Initializers in order: b1, super, b2.
|
|
B(x, y)
|
|
: b1 = E(x++),
|
|
b2 = E(y++),
|
|
super(1000) {
|
|
// Implicit super call to A's body happens here.
|
|
E(x);
|
|
E(y);
|
|
f();
|
|
}
|
|
var b1;
|
|
var b2;
|
|
}
|
|
|
|
class C extends B {
|
|
C() : super(10, 20);
|
|
}
|
|
|
|
main() {
|
|
var c = new C();
|
|
Expect.equals("10-20-1001-1011-1111-1121-11-21-1131-", trace);
|
|
}
|