mirror of
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92 lines
1.9 KiB
C++
92 lines
1.9 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DOMBindingBase.h"
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#include "nsIJSContextStack.h"
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#include "jsfriendapi.h"
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#include "mozilla/dom/DOMJSClass.h"
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#include "nsContentUtils.h"
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#include "nsWrapperCacheInlines.h"
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USING_WORKERS_NAMESPACE
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DOMBindingBase::DOMBindingBase(JSContext* aCx)
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: mJSContext(aCx)
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{
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if (!aCx) {
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AssertIsOnMainThread();
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}
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}
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DOMBindingBase::~DOMBindingBase()
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{
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if (!mJSContext) {
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AssertIsOnMainThread();
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}
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}
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void
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DOMBindingBase::_trace(JSTracer* aTrc)
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{
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JSObject* obj = GetJSObject();
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if (obj) {
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JS_CALL_OBJECT_TRACER(aTrc, obj, "cached wrapper");
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}
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}
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void
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DOMBindingBase::_finalize(JSFreeOp* aFop)
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{
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ClearWrapper();
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NS_RELEASE_THIS();
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}
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JSContext*
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DOMBindingBase::GetJSContextFromContextStack() const
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(!mJSContext);
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if (!mContextStack) {
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mContextStack = nsContentUtils::ThreadJSContextStack();
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MOZ_ASSERT(mContextStack);
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}
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JSContext* cx;
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if (NS_FAILED(mContextStack->Peek(&cx))) {
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MOZ_NOT_REACHED("This should never fail!");
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}
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MOZ_ASSERT(cx);
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return cx;
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}
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#ifdef DEBUG
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JSObject*
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DOMBindingBase::GetJSObject() const
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{
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// Make sure that the public method results in the same bits as our private
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// method.
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MOZ_ASSERT(GetJSObjectFromBits() == GetWrapperPreserveColor());
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return GetJSObjectFromBits();
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}
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void
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DOMBindingBase::SetJSObject(JSObject* aObject)
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{
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// Make sure that the public method results in the same bits as our private
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// method.
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SetWrapper(aObject);
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PtrBits oldWrapperPtrBits = mWrapperPtrBits;
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SetWrapperBits(aObject);
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MOZ_ASSERT(oldWrapperPtrBits == mWrapperPtrBits);
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}
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#endif
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