blob: 52020cf6ed39e059c47747833651dc4c8eccce7f [file] [log] [blame]
// 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 {
A({arg1: 100, arg2: 200})
: a1 = E(arg1++),
a2 = E(arg2++) {
// b2 should be initialized between the above initializers and the following
// statements.
E(arg1); // 101
E(arg2); // 51
}
var a1;
var a2;
}
class B extends A {
// Initializers in order: b1, super, b2.
B(x, y)
: b1 = E(x++),
b2 = E(y++),
super(arg2: 50) {
// Implicit super call to A's body happens here.
E(x); // 11
E(y); // 21
}
var b1;
var b2;
}
class C extends B {
C() : super(10, 20);
}
main() {
var c = new C();
Expect.equals(100, c.a1);
Expect.equals(50, c.a2);
Expect.equals(10, c.b1);
Expect.equals(20, c.b2);
Expect.equals("10-20-100-50-101-51-11-21-", trace);
}