Language/Expressions/Postfix_Expressions/expression_decrement_t01.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.

/// @assertion A postfix expression of the form e1.v-- is equivalent to
/// (x){var r = x.v; x.v = r - 1; return r}(e1 ).
/// @description Checks that evaluation of an expression of the form e1.v--
/// is equivalent to (x){var r = x.v; x.v = r - 1; return r;}(e1) in effect.
/// @author kaigorodov
/// @reviewer rodionov

import '../../../Utils/expect.dart';

class C {
  var v;
  C(this.v);
}

void test(var n) {
  var e1 = new C(n);
  var r = e1.v--;
  Expect.equals(r, n);
  Expect.equals(e1.v, (n-1));
}

main() {
  test(0);
  test(-1);
  test(1);
  test(1000000);
  test(-1000000);
}