The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/xpcom/glue/nsCycleCollectionParticipant.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,114 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsCycleCollectionParticipant.h"
    1.10 +#include "nsCOMPtr.h"
    1.11 +#include "jsapi.h"
    1.12 +
    1.13 +#ifdef MOZILLA_INTERNAL_API
    1.14 +#include "nsString.h"
    1.15 +#else
    1.16 +#include "nsStringAPI.h"
    1.17 +#endif
    1.18 +
    1.19 +void
    1.20 +nsScriptObjectTracer::NoteJSChild(void *aScriptThing, const char *name,
    1.21 +                                  void *aClosure)
    1.22 +{
    1.23 +  nsCycleCollectionTraversalCallback *cb =
    1.24 +    static_cast<nsCycleCollectionTraversalCallback*>(aClosure);
    1.25 +  NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(*cb, name);
    1.26 +  cb->NoteJSChild(aScriptThing);
    1.27 +}
    1.28 +
    1.29 +NS_IMETHODIMP_(void)
    1.30 +nsXPCOMCycleCollectionParticipant::Root(void *p)
    1.31 +{
    1.32 +    nsISupports *s = static_cast<nsISupports*>(p);
    1.33 +    NS_ADDREF(s);
    1.34 +}
    1.35 +
    1.36 +NS_IMETHODIMP_(void)
    1.37 +nsXPCOMCycleCollectionParticipant::Unroot(void *p)
    1.38 +{
    1.39 +    nsISupports *s = static_cast<nsISupports*>(p);
    1.40 +    NS_RELEASE(s);
    1.41 +}
    1.42 +
    1.43 +// We define a default trace function because some participants don't need
    1.44 +// to trace anything, so it is okay for them not to define one.
    1.45 +NS_IMETHODIMP_(void)
    1.46 +nsXPCOMCycleCollectionParticipant::Trace(void *p, const TraceCallbacks &cb,
    1.47 +                                         void *closure)
    1.48 +{
    1.49 +}
    1.50 +
    1.51 +bool
    1.52 +nsXPCOMCycleCollectionParticipant::CheckForRightISupports(nsISupports *s)
    1.53 +{
    1.54 +    nsISupports* foo;
    1.55 +    s->QueryInterface(NS_GET_IID(nsCycleCollectionISupports),
    1.56 +                      reinterpret_cast<void**>(&foo));
    1.57 +    return s == foo;
    1.58 +}
    1.59 +
    1.60 +void
    1.61 +CycleCollectionNoteEdgeNameImpl(nsCycleCollectionTraversalCallback& aCallback,
    1.62 +                                const char* aName,
    1.63 +                                uint32_t aFlags)
    1.64 +{
    1.65 +  nsAutoCString arrayEdgeName(aName);
    1.66 +  if (aFlags & CycleCollectionEdgeNameArrayFlag) {
    1.67 +    arrayEdgeName.AppendLiteral("[i]");
    1.68 +  }
    1.69 +  aCallback.NoteNextEdgeName(arrayEdgeName.get());
    1.70 +}
    1.71 +
    1.72 +void
    1.73 +TraceCallbackFunc::Trace(JS::Heap<JS::Value>* p, const char* name, void* closure) const
    1.74 +{
    1.75 +  if (p->isMarkable()) {
    1.76 +    mCallback(p->toGCThing(), name, closure);
    1.77 +  }
    1.78 +}
    1.79 +
    1.80 +void
    1.81 +TraceCallbackFunc::Trace(JS::Heap<jsid>* p, const char* name, void* closure) const
    1.82 +{
    1.83 +  void *thing = JSID_TO_GCTHING(*p);
    1.84 +  if (thing) {
    1.85 +    mCallback(thing, name, closure);
    1.86 +  }
    1.87 +}
    1.88 +
    1.89 +void
    1.90 +TraceCallbackFunc::Trace(JS::Heap<JSObject*>* p, const char* name, void* closure) const
    1.91 +{
    1.92 +  mCallback(*p, name, closure);
    1.93 +}
    1.94 +
    1.95 +void
    1.96 +TraceCallbackFunc::Trace(JS::TenuredHeap<JSObject*>* p, const char* name, void* closure) const
    1.97 +{
    1.98 +  mCallback(*p, name, closure);
    1.99 +}
   1.100 +
   1.101 +void
   1.102 +TraceCallbackFunc::Trace(JS::Heap<JSFunction*>* p, const char* name, void* closure) const
   1.103 +{
   1.104 +  mCallback(*p, name, closure);
   1.105 +}
   1.106 +
   1.107 +void
   1.108 +TraceCallbackFunc::Trace(JS::Heap<JSString*>* p, const char* name, void* closure) const
   1.109 +{
   1.110 +  mCallback(*p, name, closure);
   1.111 +}
   1.112 +
   1.113 +void
   1.114 +TraceCallbackFunc::Trace(JS::Heap<JSScript*>* p, const char* name, void* closure) const
   1.115 +{
   1.116 +  mCallback(p->get(), name, closure);
   1.117 +}