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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/HoldDropJSObjects.h"
#include "mozilla/Assertions.h"
#include "mozilla/CycleCollectedJSContext.h"
namespace mozilla {
namespace cyclecollector {
void
HoldJSObjectsImpl(void* aHolder, nsScriptObjectTracer* aTracer)
{
CycleCollectedJSContext* cx = CycleCollectedJSContext::Get();
MOZ_ASSERT(cx, "Should have a CycleCollectedJSContext by now");
cx->AddJSHolder(aHolder, aTracer);
}
void
HoldJSObjectsImpl(nsISupports* aHolder)
{
nsXPCOMCycleCollectionParticipant* participant = nullptr;
CallQueryInterface(aHolder, &participant);
MOZ_ASSERT(participant, "Failed to QI to nsXPCOMCycleCollectionParticipant!");
MOZ_ASSERT(participant->CheckForRightISupports(aHolder),
"The result of QIing a JS holder should be the same as ToSupports");
HoldJSObjectsImpl(aHolder, participant);
}
void
DropJSObjectsImpl(void* aHolder)
{
CycleCollectedJSContext* cx = CycleCollectedJSContext::Get();
MOZ_ASSERT(cx, "Should have a CycleCollectedJSContext by now");
cx->RemoveJSHolder(aHolder);
}
void
DropJSObjectsImpl(nsISupports* aHolder)
{
#ifdef DEBUG
nsXPCOMCycleCollectionParticipant* participant = nullptr;
CallQueryInterface(aHolder, &participant);
MOZ_ASSERT(participant, "Failed to QI to nsXPCOMCycleCollectionParticipant!");
MOZ_ASSERT(participant->CheckForRightISupports(aHolder),
"The result of QIing a JS holder should be the same as ToSupports");
#endif
DropJSObjectsImpl(static_cast<void*>(aHolder));
}
} // namespace cyclecollector
#ifdef DEBUG
bool
IsJSHolder(void* aHolder)
{
CycleCollectedJSContext* cx = CycleCollectedJSContext::Get();
MOZ_ASSERT(cx, "Should have a CycleCollectedJSContext by now");
return cx->IsJSHolder(aHolder);
}
#endif
} // namespace mozilla
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