blob: 4fcb832161d3c83cc43a691d529bf884b7b9a43a [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.
// @dart = 2.9
import "package:expect/expect.dart";
class B {
int value;
List trace;
B(this.trace) : value = 100;
operator [](index) {
trace.add(-3);
trace.add(index);
trace.add(this.value);
this.value = this.value + 1;
return this;
}
operator []=(index, value) {
trace.add(-5);
trace.add(index);
trace.add(value.value);
this.value = this.value + 1;
}
operator +(int value) {
trace.add(-4);
trace.add(this.value);
trace.add(value);
this.value = this.value + 1;
return this;
}
}
B getB(trace) {
trace.add(-1);
return new B(trace);
}
int getIndex(trace) {
trace.add(-2);
return 42;
}
main() {
List trace = new List();
getB(trace)[getIndex(trace)] += 37;
Expect.listEquals([-1, -2, -3, 42, 100, -4, 101, 37, -5, 42, 102], trace);
}