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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions
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39
xpcom/glue/nsCycleCollectionParticipant.cpp Normal file
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/* -*- 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 "nsCycleCollectionParticipant.h"
#include "nsCOMPtr.h"
NS_IMETHODIMP_(void)
nsXPCOMCycleCollectionParticipant::Root(void* aPtr)
{
nsISupports* s = static_cast<nsISupports*>(aPtr);
NS_ADDREF(s);
}
NS_IMETHODIMP_(void)
nsXPCOMCycleCollectionParticipant::Unroot(void* aPtr)
{
nsISupports* s = static_cast<nsISupports*>(aPtr);
NS_RELEASE(s);
}
// We define a default trace function because some participants don't need
// to trace anything, so it is okay for them not to define one.
NS_IMETHODIMP_(void)
nsXPCOMCycleCollectionParticipant::Trace(void* aPtr, const TraceCallbacks& aCb,
void* aClosure)
{
}
bool
nsXPCOMCycleCollectionParticipant::CheckForRightISupports(nsISupports* aSupports)
{
nsISupports* foo;
aSupports->QueryInterface(NS_GET_IID(nsCycleCollectionISupports),
reinterpret_cast<void**>(&foo));
return aSupports == foo;
}