xpcom/base/nsCycleCollectorTraceJSHelpers.cpp
author Brian Hackett <bhackett1024@gmail.com>
Wed, 14 Nov 2018 16:09:58 -1000
changeset 446931 1c7fc8389e012c987347efefca6b35f3948b742a
parent 446758 3d4dd037c4ceb41c227ef41270fefad15a8bb6f8
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1507359 Part 2 - Bindings and internal changes to allow ReplayDebugger to control child pausing/resuming, r=mccr8.

/* -*- 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/. */

#include "nsCycleCollectionParticipant.h"
#include "jsapi.h"
#include "jsfriendapi.h"

void
CycleCollectionNoteEdgeNameImpl(nsCycleCollectionTraversalCallback& aCallback,
                                const char* aName,
                                uint32_t aFlags)
{
  nsAutoCString arrayEdgeName(aName);
  if (aFlags & CycleCollectionEdgeNameArrayFlag) {
    arrayEdgeName.AppendLiteral("[i]");
  }
  aCallback.NoteNextEdgeName(arrayEdgeName.get());
}

void
nsCycleCollectionParticipant::NoteJSChild(JS::GCCellPtr aGCThing,
                                          const char* aName,
                                          void* aClosure)
{
  nsCycleCollectionTraversalCallback* cb =
    static_cast<nsCycleCollectionTraversalCallback*>(aClosure);
  NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(*cb, aName);
  if (JS::IsCCTraceKind(aGCThing.kind())) {
    cb->NoteJSChild(aGCThing);
  }
}

void
TraceCallbackFunc::Trace(JS::Heap<JS::Value>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (aPtr->unbarrieredGet().isGCThing()) {
    mCallback(JS::GCCellPtr(aPtr->unbarrieredGet()), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JS::Heap<jsid>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (JSID_IS_GCTHING(aPtr->unbarrieredGet())) {
    mCallback(JSID_TO_GCTHING(aPtr->unbarrieredGet()), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JS::Heap<JSObject*>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (*aPtr) {
    mCallback(JS::GCCellPtr(aPtr->unbarrieredGet()), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JSObject** aPtr, const char* aName,
                         void* aClosure) const
{
  if (*aPtr) {
    mCallback(JS::GCCellPtr(*aPtr), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JS::TenuredHeap<JSObject*>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (*aPtr) {
    mCallback(JS::GCCellPtr(aPtr->unbarrieredGetPtr()), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JS::Heap<JSFunction*>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (*aPtr) {
    mCallback(JS::GCCellPtr(aPtr->unbarrieredGet()), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JS::Heap<JSString*>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (*aPtr) {
    mCallback(JS::GCCellPtr(aPtr->unbarrieredGet()), aName, aClosure);
  }
}

void
TraceCallbackFunc::Trace(JS::Heap<JSScript*>* aPtr, const char* aName,
                         void* aClosure) const
{
  if (*aPtr) {
    mCallback(JS::GCCellPtr(aPtr->unbarrieredGet()), aName, aClosure);
  }
}