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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
/* 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 mozilla_devtools_DominatorTree__
#define mozilla_devtools_DominatorTree__
#include "mozilla/devtools/HeapSnapshot.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/RefCounted.h"
#include "js/UbiNodeDominatorTree.h"
#include "nsWrapperCache.h"
namespace mozilla {
namespace devtools {
class DominatorTree final : public nsISupports
, public nsWrapperCache
{
protected:
nsCOMPtr<nsISupports> mParent;
virtual ~DominatorTree() { }
private:
JS::ubi::DominatorTree mDominatorTree;
RefPtr<HeapSnapshot> mHeapSnapshot;
public:
explicit DominatorTree(JS::ubi::DominatorTree&& aDominatorTree, HeapSnapshot* aHeapSnapshot,
nsISupports* aParent)
: mParent(aParent)
, mDominatorTree(Move(aDominatorTree))
, mHeapSnapshot(aHeapSnapshot)
{
MOZ_ASSERT(aParent);
MOZ_ASSERT(aHeapSnapshot);
};
NS_DECL_CYCLE_COLLECTING_ISUPPORTS;
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DominatorTree);
nsISupports* GetParentObject() const { return mParent; }
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// readonly attribute NodeId root
uint64_t Root() const { return mDominatorTree.root().identifier(); }
// [Throws] NodeSize getRetainedSize(NodeId node)
dom::Nullable<uint64_t> GetRetainedSize(uint64_t aNodeId, ErrorResult& aRv);
// [Throws] sequence<NodeId>? getImmediatelyDominated(NodeId node);
void GetImmediatelyDominated(uint64_t aNodeId, dom::Nullable<nsTArray<uint64_t>>& aOutDominated,
ErrorResult& aRv);
// NodeId? getImmediateDominator(NodeId node);
dom::Nullable<uint64_t> GetImmediateDominator(uint64_t aNodeId) const;
};
} // namespace devtools
} // namespace mozilla
#endif // mozilla_devtools_DominatorTree__
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