/* -*- 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/. */ #ifndef nsWrapperCacheInline_h___ #define nsWrapperCacheInline_h___ #include "nsWrapperCache.h" #include "js/GCAPI.h" #include "js/TracingAPI.h" inline JSObject* nsWrapperCache::GetWrapper() const { JSObject* obj = GetWrapperPreserveColor(); if (obj) { JS::ExposeObjectToActiveJS(obj); } return obj; } inline bool nsWrapperCache::IsBlack() { JSObject* o = GetWrapperPreserveColor(); return o && !JS::ObjectIsMarkedGray(o); } static void SearchGray(JS::GCCellPtr aGCThing, const char* aName, void* aClosure) { bool* hasGrayObjects = static_cast<bool*>(aClosure); if (!*hasGrayObjects && aGCThing && JS::GCThingIsMarkedGray(aGCThing)) { *hasGrayObjects = true; } } inline bool nsWrapperCache::HasNothingToTrace(nsISupports* aThis) { nsXPCOMCycleCollectionParticipant* participant = nullptr; CallQueryInterface(aThis, &participant); bool hasGrayObjects = false; participant->Trace(aThis, TraceCallbackFunc(SearchGray), &hasGrayObjects); return !hasGrayObjects; } inline bool nsWrapperCache::IsBlackAndDoesNotNeedTracing(nsISupports* aThis) { return IsBlack() && HasNothingToTrace(aThis); } #endif /* nsWrapperCache_h___ */