xpcom/ds/nsTObserverArray.cpp
author Andreas Farre <farre@mozilla.com>
Sun, 05 May 2019 19:26:51 +0000
changeset 472634 f59b3336d254c80bf2b315a74fea0cb0fa8e0d47
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1547911 - Don't assert that there are no children when restoring BC. r=nika This is essentially equal to restoring cached children and removing current children from a BrowsingContext, which is the correct behaviour. It would've been better if the current children were removed in a more transparent manner, but it is more important to remove an assert that too eagerly triggers. Differential Revision: https://phabricator.services.mozilla.com/D29945

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsTObserverArray.h"

void nsTObserverArray_base::AdjustIterators(index_type aModPos,
                                            diff_type aAdjustment) {
  MOZ_ASSERT(aAdjustment == -1 || aAdjustment == 1, "invalid adjustment");
  Iterator_base* iter = mIterators;
  while (iter) {
    if (iter->mPosition > aModPos) {
      iter->mPosition += aAdjustment;
    }
    iter = iter->mNext;
  }
}

void nsTObserverArray_base::ClearIterators() {
  Iterator_base* iter = mIterators;
  while (iter) {
    iter->mPosition = 0;
    iter = iter->mNext;
  }
}