blob: 922d74feac411f890ae73166f9c767375b0dc0a7 [file] [log] [blame]
// Copyright (c) 2012, 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.
// Test correct instance compound assignment operator.
// @dart = 2.9
import "package:expect/expect.dart";
class A {
A() : f = 2 {}
var f;
operator [](index) => f;
operator []=(index, value) => f = value;
var _g = 0;
var gGetCount = 0;
var gSetCount = 0;
get g {
gGetCount++;
return _g;
}
set g(value) {
gSetCount++;
_g = value;
}
}
class B {
B()
: _a = new A(),
count = 0 {}
get a {
count++;
return _a;
}
var _a;
var count;
}
var globalA;
var fooCounter = 0;
foo() {
fooCounter++;
return globalA;
}
main() {
B b = new B();
Expect.equals(0, b.count);
Expect.equals(2, b.a.f);
Expect.equals(1, b.count);
var o = b.a;
Expect.equals(2, b.count);
b.a.f = 1;
Expect.equals(3, b.count);
Expect.equals(1, b._a.f);
b.a.f += 1;
Expect.equals(4, b.count);
Expect.equals(2, b._a.f);
b.count = 0;
b._a.f = 2;
Expect.equals(0, b.count);
Expect.equals(2, b.a[0]);
Expect.equals(1, b.count);
o = b.a;
Expect.equals(2, b.count);
b.a[0] = 1;
Expect.equals(3, b.count);
Expect.equals(1, b._a.f);
b.a[0] += 1;
Expect.equals(4, b.count);
Expect.equals(2, b._a.f);
b._a.g++;
Expect.equals(1, b._a.gGetCount);
Expect.equals(1, b._a.gSetCount);
Expect.equals(1, b._a._g);
globalA = b._a;
globalA.f = 0;
foo().f += 1;
Expect.equals(1, fooCounter);
Expect.equals(1, globalA.f);
}