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/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* 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 "DOMBindingBase.h"
#include "nsIJSContextStack.h"
#include "jsfriendapi.h"
#include "mozilla/dom/DOMJSClass.h"
#include "nsContentUtils.h"
#include "nsWrapperCacheInlines.h"
using namespace mozilla;
using namespace mozilla::dom;
USING_WORKERS_NAMESPACE
DOMBindingBase::DOMBindingBase(JSContext* aCx)
: mJSContext(aCx)
{
if (!aCx) {
AssertIsOnMainThread();
}
}
DOMBindingBase::~DOMBindingBase()
{
if (!mJSContext) {
AssertIsOnMainThread();
}
}
NS_IMPL_ADDREF(DOMBindingBase)
NS_IMPL_RELEASE(DOMBindingBase)
NS_INTERFACE_MAP_BEGIN(DOMBindingBase)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_END
void
DOMBindingBase::_trace(JSTracer* aTrc)
{
JSObject* obj = GetJSObject();
if (obj) {
JS_CALL_OBJECT_TRACER(aTrc, obj, "cached wrapper");
}
}
void
DOMBindingBase::_finalize(JSFreeOp* aFop)
{
ClearWrapper();
NS_RELEASE_THIS();
}
JSContext*
DOMBindingBase::GetJSContextFromContextStack() const
{
AssertIsOnMainThread();
MOZ_ASSERT(!mJSContext);
if (!mContextStack) {
mContextStack = nsContentUtils::ThreadJSContextStack();
MOZ_ASSERT(mContextStack);
}
JSContext* cx;
if (NS_FAILED(mContextStack->Peek(&cx))) {
MOZ_NOT_REACHED("This should never fail!");
}
MOZ_ASSERT(cx);
return cx;
}
#ifdef DEBUG
JSObject*
DOMBindingBase::GetJSObject() const
{
// Make sure that the public method results in the same bits as our private
// method.
MOZ_ASSERT(GetJSObjectFromBits() == GetWrapperPreserveColor());
return GetJSObjectFromBits();
}
void
DOMBindingBase::SetJSObject(JSObject* aObject)
{
// Make sure that the public method results in the same bits as our private
// method.
SetWrapper(aObject);
uintptr_t oldWrapperPtrBits = mWrapperPtrBits;
SetWrapperBits(aObject);
MOZ_ASSERT(oldWrapperPtrBits == mWrapperPtrBits);
}
#endif
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